Guide to Wastewater Screening Equipment

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The main purpose of wastewater screening equipment is to remove solid materials from the wastewater system. Solid materials can contaminate waterways, damage equipment, and reduce the overall efficiency of the system, which is why they must be removed at all costs.

In this guide, we’ll cover the different types of wastewater screens available, and give you tips on how to select the right one for your plant.

Types of Wastewater Screens

There are four major types of wastewater screens: rotary drum, in-channel, auger, and static. Let’s take a look at each type, how they’re designed, and what they’re used for.

Rotary Drum Screens

Rotary drum screens are incredibly versatile and offer superior solid recovery from waste streams. At JWC Environmental, we offer internally fed and externally fed drum screens. Internally fed drum screens handle pumped flow and are typically needed when there are higher flow rates. Externally fed drum screens offer 100% overflow protection and are best suited in plants with high oil or grease loadings.

In-Channel Screens

If you find yourself in situations without a grinder, you may want to consider a gravity flow in-channel screen. We offer band screens, fine screens, automated bar screens, and chain and rake screens, which all feature unique designs. All options can provide incredible benefits to your wastewater screening process.

Auger Screens

Auger screens are particularly useful for high solid facilities and smaller water treatment plants. JWC offers an Auger Monster, which works off of gravity flow and is the perfect solution for businesses seeking an all-in-one grinder, fine screen, and compactor.

Static Screens

JWC offers sidehill static and sidehill pressure screens. These types of screens are primarily used for trapping smaller debris. They’re the best option for those seeking lower operating costs and easy installs.

Why Selecting the Right Screen Matters

Wastewater screening is the first line of defense during the filtration process. If your design fails to meet industry standards, you may end up damaging and clogging your equipment every week.

If you’re not sure what factors to consider when searching for wastewater screening equipment, you’ll benefit the most from this next section.

How to Select the Right Wastewater Screen

When selecting screens, the first area you should focus on is the wastewater itself. Find out which contaminants are in the wastewater. In many industrial operations, fats, oils, and grease are common. However, you should also consider other contaminants, like salt, surface-active agents, and corrosive matter. If you don’t identify and understand the contaminants in the wastewater, you may experience screen binding/clogging.

The flow rate is also crucial. How fast or slow will the wastewater move through the screen? For best efficiency, make your decision based on the maximum flow rate possible.

Finally, decide how important the byproducts are. Many industrial applications need to screen specific particles out of the effluent to re-use for another purpose. It can be a massive revenue generator for your company. Once you’ve chosen the target size of the particles, you can choose an appropriate screen.

Contact JWC Environmental Today

Still have questions? JWC Environmental is here to help! We’ve been a trusted manufacturer of wastewater screening equipment since 1973. Based in the United States, we help clients around the globe, and are known for our innovative solutions.

You can view our full line of products here. If you need help selecting the right wastewater screen, contact us today to speak with one of our ISO-certified specialists.

Press Release: JWC Environmental Launches Monster Stack Customizable Cutter Stack

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Monster Stack Banner

Unmatched Cutter Customization

SANTA ANA, Calif. (June 16, 2021) – JWC Environmental (JWC), a world leader in wastewater solids reduction and removal equipment, announced today the launch of its Monster Stack™ customizable cutter stack. Monster Stack allows customers to mix and match the right cutter at the right location for their specific waste stream while optimizing grinder performance and unit longevity. JWC is the first and only company in the industry to offer this unique and much-needed solution.

Monster Stack addresses the specific challenges above and below the waterline – stainless steel for the exposed cutters in an acidic environment above the waterline and alloy steel for the cutters grinding rocks, grit and heavy debris at the bottom of the waste stream. There’s also the option to use Wipes Ready® cutters for those installations affected by disposable wipes.

Monster Stack Features:

  • Customized stack design for individual waste streams
  • The ability to mix and match different cutters in a single stack
  • Individual cutters manufactured to extremely tight tolerances to provide the best grinding and shearing action
  • Optimized grinder performance and longevity

“We’re pleased to offer our clients a customizable solution that allows them to specify a cutter stack that matches their unique waste stream at an economical price point,” said Greg Queen, president of JWC Environmental. “This degree of customization is unmatched in the industry. No other company comes close to offering the number of tooth profiles, thicknesses or materials as JWC.”

The performance advantage with individual cutters isn’t affected by mixing different cutters in a single stack. JWC manufactures individual cutters to very tight tolerances that are not possible with a monolithic design. Since monolithic designs inherently have greater space between the cutters to make sure they will not interfere with each other, a cutter stack with individual cutters like Monster Stack has more effective shearing action as they are designed for closer spacing.

Monster Stack is available on select Muffin Monster®, Channel Monster®, Channel Monster® FLEX and HYRDO units. Additional information can be found in the Knowledge Center.

About JWC Environmental

JWC Environmental, a Sulzer Brand, is a world leader in solids reduction and removal systems for municipal, industrial, and commercial applications. Our solutions include our legendary Muffin Monster® and Channel Monster® sewage grinders, Auger Monster® all-in-one headworks, Monster Wash Press and Monster Separation Systems®, Monster Industrial shredders, and IPEC industrial screens to solve unique wastewater processing situations. We partner with our customers to help them run efficient and compliant wastewater treatment operations as well as solve challenging size-reduction problems in industrial processes. JWC Environmental is headquartered in Santa Ana, California and has a global network of representatives, distributors and regional service centers to meet local customer needs.

Press Release: JWC Environmental Relaunches Monster Metal® Grinders With Industry-Leading 5-Year Warranty

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Monster Metal Logo

SANTA ANA, Calif. (July 21, 2020) – JWC Environmental (JWC), a world leader in wastewater solids reduction and removal equipment, announced today the relaunch of its Monster Metal grinders featuring a trade secret alloy and industry-leading five-year warranty.

Monster Metal grinders feature cutters that last twice as long as typical industry cutters and work in both abrasive and corrosive environments commonly found in wastewater treatment plants. JWC conducted intensive in-house and field testing to validate that the proprietary material and design outperformed other cutters in wear resistance and corrosion.

“We’re excited to bring back Monster Metal to the wastewater treatment market. Previously, operators had to choose between corrosion resistance or abrasion resistance. With Monster Metal, they no longer have to compromise,” said Greg Queen, president of JWC Environmental. “And they can rely on a five-year warranty to increase the longevity of their grinder cutters.”

Monster Metal is available on select Muffin Monster®, Channel Monster® and Channel Monster® FLEX units. A five-year warranty covering the cartridge and wear components is included on Muffin Monster units while a three-year warranty is available for Channel Monster and Channel Monster FLEX units.

About JWC Environmental

JWC Environmental, a Sulzer Brand, is a world leader in solids reduction and removal systems for municipal, industrial, and commercial applications. Our solutions include our legendary Muffin Monster® and Channel Monster® sewage grinders, Auger Monster® all-in-one headworks, Monster Wash Press and Monster Separation Systems®, Monster Industrial shredders, and IPEC industrial screens to solve unique wastewater processing situations. We partner with our customers to help them run efficient and compliant wastewater treatment operations as well as solve challenging size-reduction problems in industrial processes. JWC Environmental is headquartered in Santa Ana, California and has a global network of representatives, distributors and regional service centers to meet local customer needs. More information on JWC Environmental is available at jwce.com.

Wastewater Treatment Plant Gets a Grip on Grease Receiving

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Grease-Recieving-Station

Grease is offloaded through the JWC HOT to screen out unwanted trash and debris.

In 2009, the Wastewater Treatment Plant of West Lafayette, Indiana seized revenue and energy-savings opportunities for the thousands of gallons of grease the facility receives per month. The treatment plant implemented a major upgrade and installed two microturbines to generate electricity to make use of the methane produced in their digesters. The plant also installed a grease receiving station to convey grease to the digesters to increase methane production for the microturbines.

The plant handles, on average, 18,000 gallons of grease per month, and the material varies widely in consistency and fluidity. Thick grease prevents heavy solids from settling in the metal trap, while thin grease allows most of the debris to flow through the grease tank uninhibited. The plant soon found that, without a grinder on the discharge side of the grease trap, debris from the thicker grease entering the grease tank would get pulled into the grease pump and cause blockage, severe damage and continual maintenance at a big expense to repair the pump.

To solve the problem, the plant installed a JWC Environmental Heavy Object Trap (HOT) in 2011. The HOT (model GRS) features an adjustable bar screen with ½ inch (12mm) spacings, ideal for catching debris before reaching the pump. As grease is unloaded from the truck, the debris is captured by the HOT bar screen and allows the grease to flow freely through the pump without process interruption.

Since the installation of the HOT, the plant has significantly reduced the amount of debris being discharged into the grease tank. Plus, the easy-to-clean bar screen has cut down on operator maintenance and repair expense, decreasing downtime for the facility.

For more information, visit our septage and grease receiving page or feel free to request a quote from us!