Filter Presses and Cloths for "Lees Filtration"

How the Filter Press is Used in Winemaking

Filter presses are used for separating solids from liquids across many industries and applications. In the wine industry, the filter press is often referred to as a “lees filter.”

M.W. Watermark 470mm Filter Press Used for Lees Filtration in Winemaking
M.W. Watermark 470mm Filter Press

Lees is the sediment at the bottom of fermentation vessels and includes solids such as grape skins, pulp, stems, seeds and residual yeast. Lees can represent up to 10% of a winery’s total volume, which can be a significant amount in a larger winery. Lees also contain a high percentage of recoverable product, with solids concentrations typically in the range of 20-30%, which lends itself well to dewatering via filter press.

Grapes Used in Winemaking. Source: Wikipedia. Filter Presses and Filter Cloths for Lees Filtration.
Grapes Used in Winemaking. Source: Wikipedia

A filter press is also well-suited for this type of application as the lees filtration process generally results in a filter cake with low residual moisture (a relatively dry cake). The lees slurry is usually combined with a filter aid such as DE (Diatomaceous Earth) and fed into the filter press using an AOD pump.

Lees from Merlot Following Fermentation. Source: Wikipedia. Filter Presses and Filter Cloths for Lees Filtration.
Lees from Merlot Following Fermentation. Source: Wikipedia

The Role of Filter Cloths in Lees Filtration

M.W. Watermark Gasketed Filter Plates and Cloths Used for Lees Filtration in Wine Making
M.W. Watermark Polypropylene Filter Plates and Cloths

Filter cloths also play an important role in lees filtration. However, for many years wineries had few choices in the type of materials available. Traditional winemaking filter cloths have been composed of very fine mesh with low permeability and challenges in cleaning. Filter cloths were usually kept as long as the press itself, replaced only if damaged beyond repair. (Source: Wines & Vines, Jan. 2013).

Multifilament Filter Cloths

More recent polypropylene filter cloths have been made of multifilament threads, which are grouped together to form a single strand, or “yarn.” Multifilament fibers feature good particle retention and are very durable, since a break in a single thread has very little impact on the overall stability of the cloth.

However, the large number of threads create many spaces where solids can settle into the interior of the cloth, which can cause clogging (blinding). This can also lead to the proliferation of microorganisms using lees as a food source. The deeper the particles are embedded in the cloth, the more difficult they are to remove, causing challenges in cleaning.

M.W. Watermark Multifilament Filter Press Cloth; Filter Presses and Filter Cloths for Lees Filtration
Multifilament Filter Cloth (Click Image to Enlarge)

During the past few years, the market for winemaking has generated a wider range of available fabric types, including monofilament and mono-multi cloth materials.

Monofilament Filter Cloths

Monofilament filter cloths utilize individual round, continuous single-core plastic wire to form the cloth. This provides for a very smooth surface, with low particle retention and excellent cake release characteristics. These cloths also have the advantage of being more permeable, allowing for higher flow rates.

Because there are less spaces where solids can settle, they are less likely to become blinded, and are much easier to clean. The only drawback to monofilament cloths is in their durability. Because these cloths are woven from individual strands instead of multiple fibers woven together they are more fragile, and a crack in a single strand can compromise the stability of the entire cloth.

M.W. Watermark Monofilament Filter Cloth; Filter Presses and Filter Cloths for Lees Filtration
Monofilament Filter Cloth (Click Image to Enlarge)
Mono-Multi Filter Cloths

Mono-Multifilament fabrics combine the benefits of both mono and multi to get the best of both worlds. That is, the excellent cake release, higher flow rates and ease of cleaning of monofilament, plus the durability of multifilament fibers.

M.W. Watermark Mono-Multi Filter Press Cloth; Filter Presses and Filter Cloths for Lees Filtration
Mono-Multi Filter Cloth (Click Image to Enlarge)

M.W. Watermark has a team of experts on staff that can help you determine the best solid-liquid separation equipment and filter cloths for your particular application. We have an in-house laboratory where we can test your slurry sample and recommend the best pre-treatment, equipment and filter cloths to form an ideal filter cake. 

Contact M.W. Watermark to learn more or for a quote.

Visit our Filter Cloths 101 page for FAQ’s, additional blog links, filter cloth terms and more information on materials.

About M.W. Watermark

M.W. WATERMARK wants to make a difference. We are passionate about the world’s water. We are innovative, focused on customer service and always try to exceed expectations. We are an environmentally conscious company with people who are energized, encouraged and inspired to make a difference on our planet by helping to keep our shared, finite water supply clean and usable for generations to come. We build amazing, custom water and wastewater treatment equipment. Together, we can make a difference.

The product names, logos, brand names, and other trademarks listed above are the intellectual property of their respective trademark owners; M.W. Watermark is not affiliated with such trademark owners in any way.

Filter Press Maintenance and Critical Spare Parts

A filter press is designed to consistently perform in harsh industrial environments that are oftentimes hard on equipment. With a proper maintenance routine, a filter press can last for many years.

M.W. Watermark is a leading filter press manufacturer.

The purpose of this blog is to give an overview of recommended maintenance for your press and important spare parts to keep on hand to help minimize downtime.

Start with the Service Manual for Each Filter Press…

If you are maintaining multiple filter presses at your site, work to determine commonalities between presses.

M.W. Watermark Filter Press Owner's Manual - Cover

By reviewing the service manual, you should be able to determine basic information including the manufacturer, type of hydraulic system and size of the filter plates. In addition, the service manual should include a list of replacement parts. Using this information, you can develop a list of spare parts to keep on hand.

However, if the service manual is not available, M.W. Watermark can assist with parts by utilizing photos of the filter press and the hydraulic system. For replacement cloths and plates, a photo along with the appropriate cloth or plate template form allows you to quickly communicate the dimensions and requirements to M.W. Watermark.

We have versions of these forms for both CGR (Gasketed) and NG (Non-Gasketed) filter cloths as well as CGR and NG filter plates.

Filter Cloth Template Forms

Filter Plate Template Forms

M.W. Watermark Filter Press Parts

Basic Filter Press Maintenance Tips

M.W. Watermark recommends annual oil changes on an air-over-oil filter press. As compressed air is introduced into the oil with each cycle, the oil absorbs moisture from the air. This can cause premature failure in components if the oil is not changed regularly. We recommend a high quality ISO-46 for air-over-oil hydraulic systems.

We also recommend changing the oil filter and air filter at least once per year. Keep an extra oil filter and air filter on hand for each filter press.

Check the hydraulic components for leaks on a regular basis.

Keep the following spare hydraulic components on hand in case of failure:

  • Relief valve cartridge.
  • Release / decompress valve.
  • Directional spool valve.
  • Hydraulic pump repair kit.
  • Spare hydraulic pump.
  • Air and hydraulic pressure gauges – 1 of each.
  • Hydraulic cylinder or seal kits – depending on age of cylinder.

Consider commonalities between presses.

M.W. Watermark Filter Press Hydraulic Components to Keep on Hand

Special tools to keep on hand

There are specific tools available for maintaining a filter press, filter cloths and gasketing. When a filter press goes down, time is of the essence and searching for the right tool for the job can be frustrating. Therefore, we recommend the following set of tools be kept on hand at each location where filter presses will be serviced and maintained:

  • Spanner wrench.
  • Air hammer.
  • Spatula.
  • Wedge.
  • Backup plate.
    • A backup plate (also known as a “blanking” plate) allows you to continue to run the press even if a filter plate breaks or a filter cloth goes bad.
    • Also good for running smaller batches.

M.W. Watermark Special Tools for Filter Press Cloths

Filter Cloths and Gasketing Materials

  • We recommend keeping some filter cloths and gasketing materials on hand for each press.
  • Filter cloths need replacement when your filter press is no longer forming a solid filter cake. Read about other symptoms that indicate it may be time to replace the cloths.
  • Proper care of filter cloths is an important part of maintaining the performance of a filter press. Learn more about options for cleaning your filter cloths.

M.W. Watermark Filter Press Cloths and Gasketing Material

Filter Plates

  • Clean and inspect filter plates regularly.
    • Make sure the plates are properly cleaned after scraping so that no sludge remains in the gasket sealing surfaces.
  • Keep extra plates on hand for each press in case of breakage, depending on age.
  • Again, consider commonalities.

M.W. Watermark Filter Press Plates

Hydraulic Power Unit (HPU)

If you are in need of an emergency fix for your hydraulic pumping system, but are not ready to replace or rebuild your filter press, then M.W. Watermark has a great solution for you.

M.W. Watermark has designed a stand-alone hydraulic power unit which serves as a universal retrofit for older-style filter presses.

As always, M.W. Watermark will continue to stock most air-over-oil hydraulic parts for models from other filter press manufacturers.

M.W. Watermark Retrofit Filter Press Hydraulic Power Unit (HPU)
Click Image to Download HPU Brochure
  • Available with either a 7 or an 11 gallon reservoir.
  • Size options cover most types of filter presses, from 630mm to 1200mm frame size.
  • System is air-powered: Pumps the press open and closed with hydraulic oil on both sides of the cylinder.
  • HPU has a 55:1 pump ratio.
  • Maximum clamp pressure of 4,600 PSI.

M.W. Watermark Services

  • Filter Plate Service
  • On-Site Services
    • M.W. Watermark service staff can visit your site to trouble-shoot equipment, repair hydraulic systems, etc.
  • Laboratory Services
    • Our lab services can help you determine the most effective filter press equipment, equipment sizing, filtration media required and dewatering techniques for your specific application.

M.W. Watermark Filter Press Laboratory Services

M.W. Watermark Aftermarket Accessories

  • In addition to cloth and gasketing installation tools, M.W. Watermark also offers other aftermarket accessories to help you maintain your filter press.
M.W. Watermark Filter Press Aftermarket Accessories Sheet
Click Image to Download Aftermarket Accessories Sheet

Contact M.W. Watermark to learn more or for a quote.

About M.W. Watermark

M.W. WATERMARK wants to make a difference. We are passionate about the world’s water. We are innovative, focused on customer service and always try to exceed expectations. We are an environmentally conscious company with people who are energized, encouraged and inspired to make a difference on our planet by helping to keep our shared, finite water supply clean and usable for generations to come. We build amazing, custom water and wastewater treatment equipment. Together, we can make a difference.

The product names, logos, brand names, and other trademarks listed above are the intellectual property of their respective trademark owners; M.W. Watermark is not affiliated with such trademark owners in any way.

Mobile Filter Press Units for Rental

If portability is a factor in your solid-liquids separation project, then a trailer-mounted filter press from M.W. Watermark may be the best option.

Many of our customers have found that a mobile filter press can serve as the ideal choice for dewatering a slurry and managing sludge in a remote location.

M.W. Watermark offers mobile units as part of our rental fleet, with availability beginning in January / February of 2018. (Units are currently out on rental).

M.W. Watermark Trailer-Mounted Filter Press; Mobile Filter Press Unit
M.W. Watermark Trailer-Mounted Filter Press

The latest addition to our rental fleet features 1200mm filter plates with a semi-automatic plate shifter. Filter cloths are included based on customer specification. The manifold design is air blowdown / evenfill, and is constructed of PVC.

The trailer itself includes several helpful features, including flexible side curtains, independently adjustable trailer levelers, stainless steel cake chute, extendable slider belt conveyor, walkways / railings / stairs, electrical control panel, water wash-down deck and mounted overhead lighting.

M.W. Watermark Trailer-Mounted Filter Press; Mobile Filter Press Unit; User-Friendly Features
Our Mobile Filter Press Rental Units Include Several User-Friendly Features

Contact our Sales and Service Team to learn more about how M.W. Watermark can help you with your dewatering project.

We can help you determine if a mobile filter press rental is the best option for your application. 

View our current inventory of rental, surplus and rebuilt water and wastewater treatment equipment. 

About M.W. Watermark

M.W. WATERMARK wants to make a difference. We are passionate about the world’s water. We are innovative, focused on customer service and always try to exceed expectations. We are an environmentally conscious company with people who are energized, encouraged and inspired to make a difference on our planet by helping to keep our shared, finite water supply clean and usable for generations to come. We build amazing, custom water and wastewater treatment equipment. Together, we can make a difference.

The product names, logos, brand names, and other trademarks listed above are the intellectual property of their respective trademark owners; M.W. Watermark is not affiliated with such trademark owners in any way.

Using Filter Presses in Flue Gas Desulfurization Wastewater Treatment

Coal-Fired Power Plants are Producing Over Half of Our Nation’s Electricity

Coal is the primary resource in the U.S. for producing electricity, and is currently generating over half of the electrical power used in our nation today. Coal offers over 274 billion tons of untapped supplies, which according to Industrial Water World, is enough to energize America for 250 years. New coal-fired power plants are being built and existing U.S. plants are being retrofitted for environmental compliance.

Coal combustion results in energy release, solid waste produced as bottom ash and fly ash, and flue gas emissions to the atmosphere. These gas emissions are made up of sulfur oxides (SOx), nitrogen oxides (NOx), carbon monoxide and other pollutants. About two thirds of SOx and a quarter of all NOx in our atmosphere come from the generation of electric power from coal and other fuels. SOx causes acid rain, and NOx creates atmospheric ozone.

SOx compliance requires the use of flue gas desulfurization (FGD). One of the most effective methods used in the U.S. to desulfurize flue gas is wet scrubbing, which can achieve SOx removal efficiency of greater than 90%. (Source: waterworld.com).

Castle Gate coal-fired power plant near Helper, Utah. (Source: Wikipedia.org). Coal-fired power plants utilize flue gas desulfurization in wastewater treatment processes.
Castle Gate coal-fired power plant near Helper, Utah. (Image Source: Wikipedia.org).

Flue Gas Desulfurization Wastewater Treatment

Following the wet scrubbing FGD process, the resulting wastewater must be treated before being released to surface water. FGD wastewater is highly complex, and its composition can vary significantly between plants. Flue gas desulfurization wastewater is often made up of multiple key contaminants, including high concentrations of TDS and TSS, nitrites and nitrates and trace amounts of heavy metals.

Because of its unique composition, FGD wastewater requires several steps to meet National Pollutant Discharge Elimination System (NPDES) requirements prior to discharge. This treatment typically includes the following steps: Calcium sulfate (gypsum) desaturization, primary clarification, equalization, trace metals precipitation, secondary clarification, filtration and solids dewatering. (Source: powermag.com).

While the design of a FGD wastewater treatment system can vary by power plant due to differences in contaminants, a filter press is commonly used for the separation of solids from liquids in the waste stream. After dewatering in a filter press, the solids are discharged as a filter cake for disposal in a landfill. The treated wastewater is either discharged to surface water or polished with a gravity filter to further reduce suspended solids prior to discharge.

M.W. Watermark manufactures and rebuilds filter presses utilized in the process of flue gas desulfurization wastewater treatment.
M.W. Watermark manufactures and rebuilds filter presses utilized in the process of flue gas desulfurization wastewater treatment.

Contact M.W. Watermark to learn more about how filter presses can be used in the process of treating flue gas desulfurization wastewater.

About M.W. Watermark

M.W. WATERMARK wants to make a difference. We are passionate about the world’s water. We are innovative, focused on customer service and always try to exceed expectations. We are an environmentally conscious company with people who are energized, encouraged and inspired to make a difference on our planet by helping to keep our shared, finite water supply clean and usable for generations to come. We build amazing, custom water and wastewater treatment equipment. Together, we can make a difference.

The product names, logos, brand names, and other trademarks listed above are the intellectual property of their respective trademark owners; M.W. Watermark is not affiliated with such trademark owners in any way.

M.W. Watermark Welcomes New Field Service Technician - Brandon Sanderson

M.W. Watermark Filter Press Field Service Technician

M.W. Watermark is proud to welcome Brandon Sanderson to our already talented field service team. Brandon comes to us with a strong technical background, from both a mechanical and electrical standpoint.

Brandon has spent the last eight years working in the energy industry – travelling to wind farms throughout the U.S. to maintain and repair industrial wind turbines. (These are the type of turbines that are 300 feet tall with a gearbox the size of some of our 1000 mm filter presses!)

Brandon also served as a reservist in the Michigan National Guard, gaining valuable experience by keeping our military vehicles in good running condition. He was activated for a period of time following 9/11, serving in a homeland security role by protecting the armory in Big Rapids, Michigan.

Brandon now enjoys helping customers solve equipment and filtration problems. His extensive experience in troubleshooting complex machinery has made him a quick study – easily grasping the nuances of filter presses and other industrial water and wastewater treatment equipment.

M.W. Watermark Filter Press Field Service Technician

Types of Field Services Available from M.W. Watermark

We offer many services to help reduce your costs and make your water and wastewater equipment run more efficiently.

Factory-trained, experienced, and TWIC certified service professionals including Brandon are available to come to your job site to troubleshoot and repair equipment. They can also train your staff and make recommendations on how to run your equipment more efficiently. We offer competitive rates.

M.W. Watermark Field Service Technician

Contact M.W. Watermark today for…

  • Start-Ups, Training, Installation
  • Mechanical Repairs and Troubleshooting
  • PLC Programming and Troubleshooting
  • Process Review and Improvements
  • Engineering
  • Rebuilds

All of our service technicians are fully insured.

Field service contracts are available upon request; this is a great way to keep your equipment running at peak efficiency.

Visit our website for more information, and be sure to read a field services customer testimonial letter on our blog.

About M.W. Watermark

M.W. WATERMARK wants to make a difference. We are passionate about the world’s water. We are innovative, focused on customer service and always try to exceed expectations. We are an environmentally conscious company with people who are energized, encouraged and inspired to make a difference on our planet by helping to keep our shared, finite water supply clean and usable for generations to come. We build amazing, custom water and wastewater treatment equipment. Together, we can make a difference.

The product names, logos, brand names, and other trademarks listed above are the intellectual property of their respective trademark owners; M.W. Watermark is not affiliated with such trademark owners in any way.

Filter Press Dewatering Techniques Resulting in a Product

A look at how filter presses are being used across some of the most prevalent industries today

A filter press is commonly used across industries for wastewater treatment to dewater solids prior to disposal. However, in some cases the separated solid or liquid is the actual product.

Below are a few examples in the food, chemical, mining and paper industries where M.W. Watermark has manufactured filter presses to meet this type of customer requirement.

Food Industry

M.W. Watermark 470mm filter press with food grade manifold built for polishing canola and flax seed oils (edible oils).
M.W. Watermark 470mm filter press with food grade manifold built for polishing canola and flax seed oils.(Product is liquid).
M.W. Watermark 800mm filter press with food grade plates, cloths and hydraulic oil. Stainless Steel manifold. Built for filtering liquid sucrose.
M.W. Watermark 800mm filter press with food grade plates, cloths and hydraulic oil. Stainless Steel manifold. Built for filtering liquid sucrose. (Product is liquid).

Chemicals

M.W. Watermark 630mm filter press with semi-automatic plate shifter and Enduroliner™ chemical resistant coating - manufactured for poly aluminum chloride production.
M.W. Watermark 630mm filter press with semi-automatic plate shifter and Enduroliner™ chemical resistant coating – manufactured for poly aluminum chloride production. (Product is liquid).
M.W. Watermark 800mm filter press with semi-automatic plate shifter - built for bleach production.
M.W. Watermark 800mm filter press with semi-automatic plate shifter – built for bleach production. (Product is liquid).
M.W. Watermark 630mm filter press with semi-automatic plate shifter and EnduroLiner™ coating - built for cosmetics ingredient manufacturing.
M.W. Watermark 630mm filter press with semi-automatic plate shifter and EnduroLiner™ coating – built for cosmetics ingredient manufacturing. (Product is liquid).
M.W. Watermark 470mm filter press with manual hydraulics - built for processing UV coating.
M.W. Watermark 470mm filter press with manual hydraulics – built for processing UV coating. (Product is liquid).

Mining and Metals

M.W. Watermark 1000mm filter press with automatic plate shifter and drip trays - manufactured for ore processing.
M.W. Watermark 1000mm filter press with automatic plate shifter and drip trays – manufactured for ore processing. (Product is solid).
M.W. Watermark 630mm filter press with self-dumping cake hopper - built for precious metals production.
M.W. Watermark 630mm filter press with self-dumping cake hopper – built for precious metals production (dewatering activated carbon). (Product is solid).
M.W. Watermark 470mm filter press with shelf-mounted AOD pump - manufactured for precious metals production.
M.W. Watermark 470mm filter press with shelf-mounted AOD pump – manufactured for precious metals production. (Product is liquid).

Paper Industry

M.W. Watermark 630mm filter press - manufactured for paper production (cellulose dewatering).
M.W. Watermark 630mm filter press – manufactured for paper production (cellulose dewatering). (Product is solid).

Visit our Industries and Applications webpage to learn more about how filter presses can be used across a wide variety of solid-liquid separation projects.

Contact a member of our Sales and Service Team to learn more. M.W. Watermark will work with you to recommend the best equipment for your particular application.

About M.W. Watermark

M.W. WATERMARK wants to make a difference. We are passionate about the world’s water. We are innovative, focused on customer service and always try to exceed expectations. We are an environmentally conscious company with people who are energized, encouraged and inspired to make a difference on our planet by helping to keep our shared, finite water supply clean and usable for generations to come. We build amazing, custom water and wastewater treatment equipment. Together, we can make a difference.

The product names, logos, brand names, and other trademarks listed above are the intellectual property of their respective trademark owners; M.W. Watermark is not affiliated with such trademark owners in any way.

Top Sources of Industrial Wastewater

A Look at Wastewater-Heavy Industries

Almost all industries produce some form of wastewater. Equipment designed for solid-liquid separation, such as a filter press, provides for the reuse of water and cost-effective disposal of dewatered solids. Here are some wastewater-heavy industries in the U.S. today.

Pulp and Paper

Paper manufacturing is an energy-and water-intensive industry. From biochemical oxygen demand (BOD) to chemical oxygen demand (COD), solids to chlorinated organic compounds, the pulp and paper industry generates a high volume of wastewater.

Mines and Quarries

Mining of metallic ores and precious metals can produce wastewater contaminated by rock particles, metals, acids and salts, as well as hydraulic oils.

M.W. Watermark 1200mm filter press. Built for a neutralized mine wastewater application.
M.W. Watermark 1200mm filter press. Built for a neutralized mine wastewater application.

Oil and Gas

Hydraulic fracturing, or fracking, produces large volumes of wastewater as a process for extracting shale gas. The wastewater may contain high concentrations of dissolved solids, radionuclides and metals.

M.W. Watermark 1200mm trailer-mounted filter press. Built for produced water recovery.
M.W. Watermark 1200mm trailer-mounted filter press. Built for produced water recovery.

Iron and Steel

The most common pollutants in the iron and steel sector are BOD, COD, oil, metals, acids, phenols and cyanide.

M.W. Watermark 1200mm filter press manufactured for sand filter backwash dewatering.
M.W. Watermark 1200mm filter press manufactured for sand filter backwash dewatering.

Food Industry

Wastewater produced as a by-product of the food industry is often biodegradable and nontoxic. However, it may contain high concentrations of BOD, suspended solids (SS) and even pesticides.

M.W. Watermark 800mm filter press with a semi-automatic plate shifter. Application: Egg production wastewater.
M.W. Watermark 800mm filter press with a semi-automatic plate shifter. Application: Egg production wastewater.

Chemicals

Using complex organic chemicals, the chemicals industry can generate wastewater contaminated by COD, organic chemicals, heavy metals, SS and cyanide.

M.W. Watermark 1200mm filter press with diaphragm squeeze plates and EnduroLiner™ chemical resistant coating. Manufactured for nickel carbonate filtration and washing.
M.W. Watermark 1200mm filter press with diaphragm squeeze plates and EnduroLiner™ chemical resistant coating. Manufactured for nickel carbonate filtration and washing.

Treating Industrial Wastewater

Since wastewater contaminants vary by industry, there are various approaches for separating solids from liquids for efficient disposal of waste and the reuse of water. Visit our Industries and Applications webpage to see more examples of wastewater-intensive industries and the types of equipment that is utilized.

Also, be sure to contact a member of our Sales and Service Team to learn more. M.W. Watermark can work with you to recommend the best equipment for your particular application.

M.W. Watermark offers wastewater treatment equipment across a wide range of industrial applications
M.W. Watermark offers wastewater treatment equipment across a wide range of industrial applications.
About M.W. Watermark

M.W. WATERMARK wants to make a difference. We are passionate about the world’s water. We are innovative, focused on customer service and always try to exceed expectations. We are an environmentally conscious company with people who are energized, encouraged and inspired to make a difference on our planet by helping to keep our shared, finite water supply clean and usable for generations to come. We build amazing, custom water and wastewater treatment equipment. Together, we can make a difference.

The product names, logos, brand names, and other trademarks listed above are the intellectual property of their respective trademark owners; M.W. Watermark is not affiliated with such trademark owners in any way.

Slant Plate vs. Low Profile Clarifier

SLANT PLATE CLARIFIERS (SPC)

M.W. Watermark Slant Plate Clarifier (SPC)

Slant plate clarifiers (also referred to as “inclined plate clarifiers”) have been used in industrial wastewater treatment processes to provide efficient solids removal across a wide range of applications.

One of the main advantages of SPCs over conventional horizontal clarifiers is the use of a series of inclined plates. This inclined plate design allows the settling area to be as much as 10 times more than the actual floor space occupied by the clarifier.

This helps you to achieve the maximum square footage out of your production floor space, which translates into greater efficiencies and cost savings for your operation.

M.W. Watermark Slant Plate Clarifier Floor Space Requirement Diagram

Another advantage of SPCs over traditional clarifiers is the general lack of moving parts. Oftentimes the only electrical/mechanical components are the influent pump and flash/flocculation tank mixers. This translates into less chance for mechanical failure, a safer environment and cost savings in energy.

Learn more about slant plate clarifiers.

LOW PROFILE CLARIFIERS (LPC)

M.W. Watermark Low Profile Clarifier: LPC-4-330

The low profile clarifier design also utilizes inclined plates to achieve a significant reduction in floor space. The LPC design increases in width as the design flow rate increases, without increasing the height of the tank. Because the height of the tank does not change, the LPC is ideal for low ceiling installations.

The LPC can also handle flow rates up to 1,100 GPM, which makes it ideally suited for low profile applications.

LOW PROFILE CLARIFIER PRODUCT FEATURES

  • Standard models up to 300 GPM (LPC-4 Series) and up to 1,100 GPM (LPC-8 Series).
  • Compact size minimizes floor space requirements.
  • Heavy duty steel construction, welds are dye penetrant tested.
  • Carbon steel units are sandblasted and two coats of epoxy applied to ensure full coverage and superior chemical resistance.
  • 1/8″ polypropylene plates standard.
  • Sludge outlet flanges.
  • Access hatches standard.

LOW PROFILE CLARIFIER OPTIONS

In addition to the standard features, our low profile clarifiers can also be equipped with:

  • Chemical Addition Tanks (CAT) – Chemical pre-treatment for optimal solids removal. Tanks include mixers, chemical pumps and NEMA 4X UL-508A labeled panel.
  • Influent feed, sludge discharge and effluent pumps.
  • Custom designs available.
  • PolyMark™ polymer delivery systems.
Low Profile Clarifier (LPC) Diagram
M.W. Watermark offers two series of low profile clarifiers, depending on ceiling height and design flow needs.

The LPC-4 Series offers a design flow maximum ranging from 30 to 300 GPM. – Download brochure

The LPC-8 Series ranges from 165 to 1,100 GPM. – Download brochure

Learn more about our low profile clarifiers. 


WHICH TYPE OF CLARIFIER IS BEST SUITED FOR MY OPERATION?

Both M.W. Watermark’s slant plate and low profile clarifier series are designed to be tough and dependable, while at the same time being sensitive to tight budgets and maximizing production space.

Generally, the type and size of clarifier needed depends on the specific application and location, including design flow needs, floor space and ceiling height.

M.W. Watermark has a team of experts on staff that can work with you to recommend the best solution for your particular application. Contact us today!

 

About M.W. Watermark

M.W. WATERMARK wants to make a difference. We are passionate about the world’s water. We are innovative, focused on customer service and always try to exceed expectations. We are an environmentally conscious company with people who are energized, encouraged and inspired to make a difference on our planet by helping to keep our shared, finite water supply clean and usable for generations to come. We build amazing, custom water and wastewater treatment equipment. Together, we can make a difference.

The product names, logos, brand names, and other trademarks listed above are the intellectual property of their respective trademark owners; M.W. Watermark is not affiliated with such trademark owners in any way.

How a Commercial Car Wash Can Reuse Water and Save Money

Each time you wash your car, wastewater is created – it’s unavoidable. However, using a commercial car wash (either automatic or self-serve) rather than washing your car at home can help save water thanks to water recycling processes integrated into modern washing systems.

Automatic Car Wash Water Consumption

While it might seem like automatic car wash systems use excessive amounts of water, updated technology has made it considerably easier for owners to use water reclamation systems. These systems are designed to cleanse used water of debris, making it suitable for reuse. This helps minimize the amount of freshwater lost during each wash cycle – something that is simply not plausible during an at-home car wash.

While the average amount of water used by automatic car washes fluctuates, the water reclamation systems used in many washes help keep numbers quite low. According to the International Car Wash Association’s report, Water Conservation in the Professional Car Wash Industry, on a gallon-per-vehicle (gpv) basis, professional car washes use between 30 gpv for in-bay automatics to 70 gpv for frictionless conveyor car washes. However, the actual amount of water lost can be much less, depending on several factors, like the car wash design and season.

M.W. Watermark filter presses can be used to recycle car wash wastewater
Click to view our Recycle and Save infographic.

Self-Serve Car Wash Water Consumption

According to the Southwest Car Wash Association, a self-service car wash uses roughly 17-18 gallons of water per car – which is in stark contrast to the average 100 gallons or more of water used in standard home car washes as cited by the Western Car Wash Association. This is likely because, as a business, commercial washes are faced with not only the rising cost of fresh water, but also disposal costs along with rigid environmental regulations. To run their operations more efficiently while complying with regulations, wash owners can integrate a wastewater reclamation system.

Environmental Responsibility

Aside from repurposing valuable water, water reclamation systems used in car washes reduce disposal costs while helping to prevent detergents and other chemicals from polluting the environment. One method of water reclamation involves using a filter press, which is available through M.W. Watermark. Designed to remove solids from wash water while allowing soaps to be reused, our filter presses offer an easy opportunity to reduce the environmental footprint of your wash while maximizing its efficiency.

Contact M.W. Watermark today to learn more about car wash wastewater recycling equipment.

About M.W. Watermark

M.W. WATERMARK wants to make a difference. We are passionate about the world’s water. We are innovative, focused on customer service and always try to exceed expectations. We are an environmentally conscious company with people who are energized, encouraged and inspired to make a difference on our planet by helping to keep our shared, finite water supply clean and usable for generations to come. We build amazing, custom water and wastewater treatment equipment. Together, we can make a difference.

The product names, logos, brand names, and other trademarks listed above are the intellectual property of their respective trademark owners; M.W. Watermark is not affiliated with such trademark owners in any way.

Using Filter Presses to Recycle Flowback and Produced Water

What is Hydraulic Fracturing?

Hydraulic fracturing (informally referred to as “fracking”) is an oil and gas well development process that involves injecting water, chemicals and additives (known as proppants) under high pressure into a shale rock formation. To keep fissures and fractures open, proppants such as sand or ceramics are commonly used. This process is intended to create new fractures in the rock as well as increase the size, extent and connectivity of existing fissures to reach oil and gas deposits. (Source: USGS.gov).

The hydraulic fracturing process requires the management of a great deal of water for the extraction of oil and gas. First, a substantial amount of water is used for the initial injection process. According to the USGS, water use can range from 1.5 million to about 16 million gallons per hydraulically fractured well depending on the nature of the rock formation and other factors. Next, the issues of flowback and produced water must be considered.

Flowback Versus Produced Water

Flowback water is a combination of the water, chemicals and proppants pumped into the ground that return to the surface over time as a result of pressure. Most of the flowback occurs in the first seven to ten days, while the rest can occur over a three to four week period. The flowback can be anywhere from 20 to 40 percent of the volume initially injected into the well. The remaining fluid is absorbed into the rock formation. (Source: idl.idaho.gov).

At some point in time, the water recovered from the well makes a transition from “flowback” to “produced” water. Produced water is composed of the minerals, petroleum residue, salt and other contaminants already present in the ground.

While flowback water can be considerable, it is the produced water that creates a much larger challenge for producers. On average in the U.S., between five and six barrels of water are produced for every barrel of oil that comes out of the ground. The Permian Basin in West Texas produces an even greater amount of water, at six to eight barrels of water per barrel of crude. This is equivalent to over 1,000 Olympic-size swimming pools full of water coming out of the Permian Basin alone each day! (Source: rbnenergy.com).

When collected from a well, the combined flowback and produced water contain a high amount of contaminants along with the original proppants. Producers must first clean and then either recycle or dispose of the water in a safe, environmentally responsible manner. Because of the sheer volume of water resulting from hydraulic fracturing operations, along with the need for a substantial amount of water on the front end of the process, many companies are now treating this water for reuse.

The Role of Filter Presses

Filter presses are often used as part of the water treatment process, separating the solids that are precipitated out of the water. A filter press can capture the majority of the particulate matter, and then the clean water can be routed back to the beginning of the process.

Oilfield Recovery Services Video - Produced Water Treatment System Using an M.W. Watermark Filter Press
Click to see how an M.W. Watermark filter press is used in a produced water treatment process. (Directs to webpage where the video is located).

M.W. Watermark is a leading filter press manufacturer, with expertise in building the large format filter presses used in the mining and energy industries. M.W. Watermark also makes custom filter cloths with short lead times for virtually all makes and models of filter presses. Cloths can be sewn to the exact specifications of your filter press, providing for a perfect fit.

M.W. Watermark manufactures large format filter presses. We also cut and sew specialty filter cloths in-house.
M.W. Watermark manufactures large format filter presses. We also cut and sew specialty filter cloths in-house.
M.W. Watermark 1500mm Filter Press - Brine Solution from Produced Water Recovery Application.
M.W. Watermark 1500mm filter press – built for a brine solution from a produced water recovery application.

Contact an M.W. Watermark Sales and Service Team member to learn more.

About M.W. Watermark

M.W. WATERMARK wants to make a difference. We are passionate about the world’s water. We are innovative, focused on customer service and always try to exceed expectations. We are an environmentally conscious company with people who are energized, encouraged and inspired to make a difference on our planet by helping to keep our shared, finite water supply clean and usable for generations to come. We build amazing, custom water and wastewater treatment equipment. Together, we can make a difference.

The product names, logos, brand names, and other trademarks listed above are the intellectual property of their respective trademark owners; M.W. Watermark is not affiliated with such trademark owners in any way.