Products & Services--Sludge

Philadelphia Mixers offers the Momentous Flow Technology, a continuous rotating flow system that has applications in anaerobic digesters, anoxic mixers, degassing of liquids, and flocculators.

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Mixing system

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Philadelphia Mixers offers the Momentous Flow Technology, a continuous rotating flow system that has applications in anaerobic digesters, anoxic mixers, degassing of liquids, and flocculators. The technology allows use of relatively inexpensive mixers for large, tall form vessels above 20 ft in diameter with height-to-diameter ratio of ~ 3.0.
Philadelphia Mixing Solutions
Palmyra, PA Tel: 800-956-4937 Web:

Non-clog pumps

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ITT has added the former A-C Pump non-clog, split case and column pumps to its Flygt family. The addition of the “Heritage A-C” product line expands Flygt’s treatment plant offering to include a complete assortment of dry installed bearing frame pumps with flows to 1,500,000 gpm.
ITT Water & Wastewater USA Inc.
Trumbull, CT
Tel: 203-610-0853 Web:

Polymer dosing monitor

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The Tote Bin Scale™ from Force Flow allows plant operators to accurately monitor the amount of polymer being fed from IBC type totes for dewatering. Simply place tote on platform and monitoring begins. Nothing to install inside tote. Systems prevent costly over feed conditions and also enable the documentation of the actual amount fed. Remotely monitor from SCADA or PLC. Available with the advanced Wizard 4000® Digital Indicator, the Solo® 1000 or the Century® Hydraulic Dial. Day tank and drum scales are also available.
Force Flow
Concord, CA
Tel: 800-893-6723

Biosolids disposal

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Degremont Technologies’ Thermylis™ High Temperature Fluid Bed has been used as a disposal method for wastewater treatment biosolids for over 40 years. It is a safe, sustainable and eco-friendly technology. In the thermal oxidizer, water is evaporated and organic materials are combusted, eliminating odors and reducing the biosolids volume to a much smaller quantity of inert ash. The ash can be reused for several applications, such as cover in conventional landfill or as road base and other construction material. The fluid-like behavior offered by this technology promotes turbulence without moving parts, optimizing both heat and mass transfers.
Degremont Technologies – Infilco
Richmond, VA
Tel: 804-756-7787

Membrane thickeners

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Enviroquip, a division of Eimco Water Technologies, has combined its expertise in solids processing with Kubota membrane technology to create its line of membrane thickeners (MBTs). The package system is designed to be a free-standing sludge thickener coupled with a sludge holding tank or digester which is available for immediate installation at new or existing treatment plants to increase the capacity of sludge processing and storage tanks.
Eimco Water Technologies
Austin, TX Tel: 512-834-6000 Web:


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The Ultra Mag® Wastewater Flow Meter from McCrometer is designed to operate in treated wastewater or even sludge or slurries. With its non-invasive, no-moving parts flow sensing technology, the inline magmeter delivers measurement accuracy of +0.5 percent in water effluent with repeatability of +0.05 percent. The meter measures liquid flow in 2 to 36 inch lines from 0.2 to 49 fps at pressures of up to 300 psi, depending on the selected flange configuration. Manufactured with 316 stainless steel, the meter’s electrodes feature a unique bullet-shaped design that is self-cleaning.
Hemet, CA
Tel: 800-220-2279

Sludge pumping

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The Moyno® 2000 HS System is an alternative to piston pumps and open conveyors for dewatered sludge transfer in municipal wastewater treatment. It features an integral hopper with a twin-screw auger feeder and a Moyno G4 progressing cavity pump that handles semi-dry, high solids, dewatered municipal sludge to over 50 percent solids. The system can pump filter cake further distances with higher volumetric efficiencies than any other progressing cavity pump. Its twin-screw feeder supplies a constant, pressurized feed rate to the pump resulting in a 100 percent pump cavity fill rate. The design of the patented Ultra-Feed® pump rotor head further contributes to volumetric efficiency.
Moyno Inc.
Springfield, OH
Tel: 877-486-6966

Suspended solids meter

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Users can measure the concentration of sludges or slurries without the reading being affected by color using the Markland Model 502 Suspended Solids Meter. The meter can be used in drinking water plants to measure the concentration of the backwash sludge from sand or membrane filters before it is sent for further processing. In wastewater treatment plants it is used to measure primary, secondary and return activated sludges.
Markland Specialty Engineering
Toronto, Ontario Tel: 416-244-4980 Web:

Sludge blanket monitoring

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Hach’s Sonatax sc sludge blanket level monitoring system optimizes sludge extraction, manages recirculation, and warns of potential solids washouts that may result in permit violations. The probe stays clean by using a magnetic coupled wiper that wipes the face of the probe. The wiper functions with a magnetic connection and without a shaft so there are no o-rings to replace and no need to open the probe housing. The ultrasonic probe automatically scans a range of frequencies to find the ideal settings for the solids concentration for the application. Built-in software can disregard signals reflected from tank structures such as pipes, rods, etc. The sludge level in the tank is then graphically displayed on the controller screen.
Hach Co.
Loveland, CO
Tel: 800-227-4224

Sewage pumps

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Patterson Pump’s Forceline® NCS Series non-clog sewage pumps are offered with a sealing arrangement which requires no flush water. This technology features EnviroSeal’s SpiralTrac® throat bushing and Chesterton’s Model 442™ split mechanical seals, and provides substantial savings in areas of maintenance and seal flush water. In addition to savings on initial installation and long term costs associated with having to flush the stuffing box, maintenance can now be performed to the seal and stuffing box without taking the pump out of service.
Patterson Pump Co.
Toccoa, GA
Tel: 706-886-2101

Ammonia removal, recovery

ThermoEnergy has released an engineering study demonstrating that the company’s Ammonia Recovery Process (“ARP”) can provide a substantial reduction in carbon emissions for municipal wastewater treatment plants versus conventional biological methods for the treatment and removal of nitrogen/ammonia. The report by Parsons-Brinckerhoff shows that a generic 100 mgd wastewater treatment plant can expect greenhouse gas emission reductions in the range of 3,000 and 5,000 tons a year. The physical/chemical process converts ammonia from wastewater streams into ammonium sulfate; a commercial grade fertilizer used by agriculture around the world. The compact size of the process allows it to be retrofitted into existing wastewater treatment plants, making it a solution for plants seeking treatment in already limited spaces.
Little Rock, AR Tel: 501-376-6477 Web:

Sludge level monitoring

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The Pulsar “Sludge Finder” is a reliable solution for measuring and controlling sludge interface in primary or secondary clarifiers. Operating ultrasonically through liquid, the system uses echo algorithms to identify the sludge blanket level. The transducer is immersed in the liquid, emitting a high frequency sound pulse down towards the interface. The pulse reflects from the denser material back to the transducer face for echo processing. It is a low-cost, four channel system with individual 4-20mA outputs and relays. It uses a unique self-cleaning wiper-blade for reduced maintenance.
Pulsar Inc.
Shalimar, FL
Tel: 850-609-1777

Control pinch valve

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Red Valve’s Series 5200 Control Pinch Valve is designed to provide accurate, repeatable control of abrasive and corrosive slurries. The resilient elastomer sleeve produces a smooth venturi flow path that outlasts gate, plug, ball and even stellite-coated control valves. The reinforced elastomer sleeve is the only wetted part of the valve, eliminating the need for packing, valve seats and mechanical parts. A cone sleeve trim is most commonly used in throttling applications for tighter control and better rangeability.
Red Valve Co.
Carnegie, PA
Tel: 412-279-0044

Mixing system

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The Rotamix Process Mixing System from Vaughan uses state of the art solids handling equipment and technology for mixing of digesters, sludge storage tanks, sludge blend tanks, equalization basins and anoxic zones. The company’s Chopper Pump combined with an analyzed placement of fixed position glass lined mixing assemblies provides dual-zone mixing with a vertical-axis vortex, assuring uniform mixing velocities throughout a tank or basin. Computational Fluid Dynamics (CFD) Analysis confirms optimum mixing performance before the installation, while process testing re-affirms an even distribution of solids once the installation is complete.
Vaughan Co.
Montesano, WA
Tel: 888-249-2467

Sludge drying

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Kruger’s Solia™ process combines two tried and true methods of sludge treatment, air drying and aerobic fermentation, to enhance sludge drying efficiency. Sludge is stored in a greenhouse environment, where solar radiation is used for drying. The sludge is maintained in an aerobic state and turned regularly. The energy released by the oxidation of the biomass increases the drying efficiency. The process provides a cost-effective and environmentally friendly method of treating waste biosolids.
Kruger Inc.
Cary, NC
Tel: 919-677-8310

Fiberglass basins

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New 96" and 120" Fiberglass Sump and Sewage Basins are now available from Topp Industries. They are the largest inside diameters the company has ever offered. The company’s basins are manufactured to ASTM D3753 and the entire line of basins now offers inside diameters ranging from 18" to 120", with other diameters available upon request. The company offers these new basins in varying heights to meet specific applications and one-piece tanks are available as deep as 35'. The 96" basins provide capacities from 3,008 to 7,520 gallons, while the capacities of the 120" diameter basins range from 4,700 to 11,750 gallons.
Topp Industries Inc.
Rochester, IN
Tel: 800-354-4534 Web:

High pressure couplings

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Victaulic designed the Style 808 Double Groove Coupling for use in high pressure systems. The coupling was developed in response to industry needs for a reliable high-pressure coupling particularly for solids applications. They engage directly into double grooved pipe without the need for special weld-on nipples or collars. The couplings are excellent for applications such as high-pressure slurry and sludge piping.
Easton, PA
Tel: 800-742-5842

Polymer makedown

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Fluid Dynamics has introduced a new explosion-proof polymer makedown system for preparation, activation and injection of liquid polymers in water and wastewater treatment applications. The system can produce dilute solution (0.1% - 2.0%) at capacities from 20 gph to 3,000 gph of total makedown solution. The explosion-proof system features all stainless steel construction. It uses the patented “Gatlin Mixer” for mechanical mixing and blending of polymer material.
Fluid Dynamics Inc.
Boulder, CO
Tel: 888-530-7300

Sludge layer detection

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The ORCA Sonar Series, available from Hawk Measurement, offers seven different sonar transducer frequencies for density interface detection. This “third generation” sonar system allows users to select the appropriate frequency according to the density of the interface that is being controlled and monitored (Primary, Sedimentation, or Thickener). Rather than reflecting small signals of 300 millivolts off the desired density interface, the device range reflects signals as large as 2500 millivolts because of its optimization of the sonar transducer frequency.
Hawk Measurement
Tel: 888-429-5538 Web:


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Chemineer’s portable DT mixers are engineered for handling applications in many markets, including polymers and water treatment. The mixers are fitted with industry standard NEMA motors and gearmotors from 1/4 to 5 hp as well as commercially available seals for economic maintenance and reduced downtime. The mixers are available with a variety of impellers, shaft lengths and diameters with flanged or chuck shaft couplings.
Chemineer Inc.
Dayton, OH
Tel: 937-454-3200

Dewatering, thickening

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Ashbrook Simon-Hartley offers the Klampress® belt filter press for sludge processing operations. In its three belt configuration, the press can increase throughput volumes and significantly increase dewatering and thickening capabilities. The press provides the addition of an independent gravity deck, and gives utilities the option of operation in the gravity belt thickener (GBT) mode or operation in the belt filter press (BFP) mode — independently.
Ashbrook Simon-Hartley
Houston, TX
Tel: 800-362-9041

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