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Biosolids



JetMix – Anaerobic digestion mixing system

Evoqua - JetMix System, with its simple components sweeps all areas of a storage tank by creating a unique torroidal flow pattern.  Essentially, its floor-mounted nozzles combine with the action of chopper pumps to keep solids suspended or to resuspend solids that have settled, resulting in the desired homogenous mix. Provides power savings of up to 50% or more.

Coarse Bubble Diffuser – Sanitaire

Sanitaire Coarse Bubble Diffusers are made of 304 or 316 stainless steel and designed to last for 25+ years. They remain the industry standard and are a smart alternative to mechanical aeration. Its inverted air reservoir stores a sufficient air volume at the center of the diffuser to ensure continuous, uniform airflow that prevents clogging. The bottom deflector limits debris from entering the diffuser, minimizing maintenance needs. Complete passivation is performed after fabrication, eliminating corrosion problems. With pulled ports and a gusseted connector design, the stainless steel header system provides longer term protection than lower cost options.

Floating Aerator – Aqua-Jet II Contained/Covered

Aqua Aerobics Systems Aqua-Jet II® Contained Flow Aerator is for applications which require continued operation of aeration equipment during cold weather months, but are limited because of inadequate heat sink due to process selection or environmental conditions. This aerator has proven to operate efficiently in a variety of applications, even in sub-zero temperatures.

Membrane

Sanitair Fine Bubble Diffuser

Xylem Sanitaire

Floating Aerator

Aqua Aerobic Floating Aerator

Aqua Aerobic Systems Floating Aerator

Shaftless Screw Conveyor – Spirac

Spirac shaftless screw conveyors with horizontal, inclined and vertical orientation with no intermediate or end bearings, low rpm and low power usage is a space-saving, extremely reliable conveying option. Maintenance is significantly reduced when compared to traditional conveying methods. The elimination of a central shaft allows a much higher fill rate resulting in lower rpm’s; more efficient conveying and consequently less wear and power usage.

Conveyors – JMS

JMS (Jim Myers and Sons) offers screw conveyor systems that are compact in design, and are easily adapted to congested locations for conveyance of materials in the horizontal, inclined, or vertical directions. They offer several advantages for environmental applications such as total enclosure of materials for odor and spillage control, and the ability to handle a wide variety of materials from wet to dry, and slow-moving to free-flowing. Screw conveyors are available in a variety of materials of construction. The ability to have multiple entry and discharge points and many options for flow control often make this type of conveyor a key component of larger material handling systems.

Screw Conveyors – Shafted & Shaftless

Biosec Enviro Shafted and Shaftless Screw Conveyors

Paddle Dryer – Indirect (Andritz Gouda)

Andritz Gouda - Paddle Dryer is a indirect or convective sludge heating system that evaporates (dries) liquid from sludge that it receives from a centrifuge or belt filter press. The dryer consists of a trough containing two counter rotating shafts, arrayed with paddles.The hollow design of the paddle shafts means that the entire interior surface acts as one large heat exchanger. Controlled agitation by the rotating shafts with paddles deliver superb product-to-surface interaction, for an optimal heat transfer rate.

Shaftless Screw Conveyor – Spirac

Spirac shaftless screw conveyors with horizontal, inclined and vertical orientation with no intermediate or end bearings, low rpm and low power usage is a space-saving, extremely reliable conveying option. Maintenance is significantly reduced when compared to traditional conveying methods. The elimination of a central shaft allows a much higher fill rate resulting in lower rpm’s; more efficient conveying and consequently less wear and power usage.

Centrifuge

Andritz Centrifuge

Andritz - Centrifuge is manufactured to handle the most difficult to dewater sludges with automated controls and torque control to allow operation with minimum amount of operator attention and maintenance. Field replaceable tungsten carbide feed and discharge ports, field replaceable wear tiles with 20,000 hour wear guarantee and 316L stainless steel bowl  provide a rugged and dependable machine. Andritz commitment to stock spare parts allows the owner to exchange the scroll without having to remove the bowl since both are independently balanced freeing up owners requirements for spare parts. Successful installations include Olathe-KS, Newton-KS, Wichita-KS and Lincoln-NE.

Belt Filter Press

Andritz Belt Press

Andritz Belt Filter Press

Gravity Belt Thickener – Andritz

Andritz Gravity Belt Thickener

Andritz Gravity Band Thickener

Screw Press – Andritz

ANDRITZ C-Press, a screw press providing high performance combined with compact design, features low operating costs. With its direct drive system and conical shaft with constant screw pitch, the new press can handle inlets from 1 to 23 m3/h and outlets from 50 to 800 kg DS/h. In addition to a long lifecycle, the press also offers the advantages of easy operation, low maintenance, and – due to bi-sequential cleaning – 30% less water consumption than comparable equipment.

Rotary Drum Thickener – Kusters

Kusters - Rotary Drum Thickener - to reduce sludge hauling costs, increase digester capacity, and to reduce size of other dewatering equipment. Thicken sludge from (0.5% -1.5%)  to outlet concentration of  (5% to 7%) with flowrates of 25 to 400 gpm. Choose Kusters to save significant reduction in polymer consumption compared to competitors in side by side tests. Flocculation tank with maxized detention time

Rotary Press – Slow-rotating ACAT Screw Press – Kusters

Kusters ACAT Screw Press -  Slow rotating screw press runs quietly, unattended and results in high cake solids, low polymer consumption, high capture rates and low energy consumption.

Plate & Frame – Andritz – Netzsch

 Andritz - Netzsch Plate and Frame Press

PolyBlend® DP Dry Polymer Preparation System

UGSI PolyBlend® DP Series Dry Polymer Feed System

The PolyBlend® DP series dry polymer preparation system offers a unique two-stage method of initial high-shear mixing followed by low-shear mixing. The mechanical activation of the dry polymer ensures polymer optimization and lowers operating costs. An innovative stainless steel "hollow wing" mixing impeller in the mix/hold tank reduces polymer consumption by providing proper energy at low speed through impeller size and recirculation to prevent agglomerations while minimizing polymer fracture. With minimal maintenance and a small footprint, the PolyBlend® DP is fully automatic and easy-to-operate.

UGSI PolyBlend Liquid Polymer Wetting & Activation System

UGSI Polymer Feed Systems

A PolyBlend M Series Polymer Feed System provides a tapered mixing chamber that provides high performance polymer mixing and feed. The PolyBlend® system applies high mixing energy at the first contact of polymer and water for a short duration on initial shear. The system also applies mixing through a tapered regime, which minimizes polymer agglomeration and fracturing. After initial wetting or inversion in the high-shear impeller zone of the unit, polymer solution passes through a cylindrical processing zone where it is subjected to continuously decreasing shear rates over a period of time. The unit is equipped with "C" Controls functions, which along with a variable speed mixer offers a system with unmatched activation flexibility. The controller is capable of maintaining constant solution strength by sensing changes in incoming make-up water flow and automatically responding to these flow changes via a motor-driven control valve. Even primary and secondary dilution water is kept at the same ratio as output is adjusted.

Fixed Digester Cover – Radial Beam

ClearStream- Fixed Digester Cover - Radial Beam is economical primary digester cover with small liquid level variation and can also be used as a secondary digester when gas can be stored through other means.  The fixed digester has a limited gas storage capacity. Designs incorporate a water launder or a seal to overcome liquid level variation limitations.  The annular seal achieves a pressure seal utilizing sidesheets submerged in the sludge and contains odors.

Gasholder Cover – Radial Beam or Truss

ClearStream Gasholder Cover - Radial Beam or Truss for a primary or secondary digester that allows for varying volumes of gas storage.  Also allows varying levels of sludge as compared to the fixed digester cover and prevents a large scum blanket.  The slide guides are low maintenance compared to rolling guides. This cover does not require external insulation because there is several feet of gas storage between the roof and the sludge for thermal insulation.

Buoyant Floating Truss Digester Cover

ClearStream- Buoyant Floating Truss Digester Cover is a primary digester cover preventing a large scum blanket since the cover is in direct contact with the sludge to reduce liquid area exposed. This cover is most effective when sludge levels vary significantly and in conditions where extreme foam occurs.  The ballast blocks are located in the attic space where the attic space acts as natural thermal insulation.

Captivator – Increase biogas of anaerobic digestion

Captivator - Evoqua - increases Biogas up to 40% of a conventional anaerobic process by capturing and converting BOD to biogas that otherwise requires aeration energy. Ideal for new wastewater plants, looking for more biogas production for conversion to energy and looking to reduce aeration energy. Retrofit of existing wastewater plants to provide an increase in capacity with a more efficient use of existing space and tankage.

Duo-Deck Floating Digester Cover

Evoqua -  Duo-Deck Floating Steel Digester Covers provide distinct advantages over other floating covers. The completely all welded structure provides a sealed air space within which oxidation of the metal surfaces is virtually eliminated. Prevents scum blanket buildup. Floatable materials – oil, grease, hair, cellulose are kept constantly submerged and in contact with active digesting material. The material stays moist, aiding degradation. The safest design for maintenance personnel after several years of traffic under the cover.

Dystor – membrane digester gas holder system

Evoqua - Dystor® system uses a dome-shaped, engineered membrane system to store biogas, and prevent odors. The Dystor system’s outer membrane remains inflated in a fixed position. The inner membrane moves freely as it stores or releases biogas generated from the anaerobic digestion process. This system can hold up to six times as much gas as conventional steel digester covers, maximizing the energy benefits of the process and providing cost savings. Dystor is more economical to install than steel gas holders and more versatile and more stable than floating covers. Ideal for both primary and secondary digesters, its dome-shaped, engineered membrane system maximizes storage of methane gas and sludge, while also containing odors. Plus, a manufacturer installed system means single-source responsibility.

Crown® Disintegration System – increase biogas & reduce sludge

Evoqua - Crown®​ Disintegration System increases biogas yield from the anaerobic digester by up to 30% and reduces amount of sludge for disposal by up to 20%, drastically lowering disposal costs. The patented mechanical sludge disintegration process uses cell lysis technology to break down sludge at the cellular level. Municipalities with high sludge hauling costs will realize major economic savings, and plants with digestion foaming problems will benefit, as the unique disintegration process disrupts filament-building microorganisms.

JetMix – Anaerobic digestion mixing system

Evoqua - JetMix System, with its simple components sweeps all areas of a storage tank by creating a unique torroidal flow pattern.  Essentially, its floor-mounted nozzles combine with the action of chopper pumps to keep solids suspended or to resuspend solids that have settled, resulting in the desired homogenous mix. Provides power savings of up to 50% or more.

Gas Safety Equipment for Digester Covers, Waste Burners & Flares

Shand Jurs BioGas Safety Flame Arrestors

Shand & Jurs (L&J Technologies) designs, manufactures and tests a complete line of Digester Gas Safety Equipment and Waste Gas Burners/Flares for municipal sewage treatment plants, landfills, dairies, food-processing and breweries. Gas safety equipment on top of digester covers including pressure/vacuum vents, flame arresters, 3-way safety selector valves along with emergency vent/manhole covers and cover position indication. We manufacture both open candlestick and enclosed flares to help reduce emissions. Our candlestick flares are offered with options for automatic ignition at the tip of the flare or at ground level. Our enclosed flares are designed to meet strict emission regulations and/or where open flames are not permitted.  Proudly manufactured in USA.

Gas Conditioning & Cogeneration Engine Systems – Unison

Unison Solutions, Inc.,  manufacturers biogas conditioning, biogas engine, Capstone turbines, and  BioCNG™ vehicle fuel systems. Expertise in purifying biogas includes hydrogen sulfide removal, siloxane removal, COremoval, compression and gas quality monitoring. Unison systems have been installed  at wastewater treatment plants, landfills, dairies and food processing digester plants.

Heat Exchanger – Sludge

Evoqua Heat Exchanger

ATAD – Fuchs

Kusters Fuchs ATAD -Autothermal Thermophilic Aerobic Digestion (ATAD) meets highest treatment objectives regarding biosolids degradation. Thermophilic temperatures of approx. 60°C are easily achieved. Heat retention makes low ambient temperatures in winter no problem. The energy surplus is utilized for water heating and for supporting the space heating system of the plant. The product of FUCHS ATAD is stabilized, disinfected sludge classified as Class A Biosolids. Due to its special features an excellent organic fertilizer, which is highly welcome in agriculture. Dewatering leads to volatile solids contents exceeding 30 % DS. This keeps transportation costs low.

Cannon Mixer

Evoqua Cannon Mixer

Paddle Dryer – Indirect (Andritz Gouda)

Andritz Gouda - Paddle Dryer is a indirect or convective sludge heating system that evaporates (dries) liquid from sludge that it receives from a centrifuge or belt filter press. The dryer consists of a trough containing two counter rotating shafts, arrayed with paddles.The hollow design of the paddle shafts means that the entire interior surface acts as one large heat exchanger. Controlled agitation by the rotating shafts with paddles deliver superb product-to-surface interaction, for an optimal heat transfer rate.

Indirect

Indirect

Andritz Indirect

Belt Dryer

Andritz - Belt Drying System - provides highly desired Class A Biosolids in a highly marketable sludge pellet / granule. The process granulates the dewatered sludge in a mixer with product that has already been dried. The moist granulate produced here is distributed evenly over the belt in the dryer by a specially designed feed module. The even layer of material on the belt creates optimum conditions for even distribution of the drying air.  This, in turn, is necessary for even heating and drying of the sewage sludge. The layer of material on the belt forms a filter medium for the air flowing onto the granulate layer from above and thus prevents entrainment of dust. The low temperature of the drying gases (< 150°C) and the low dust content in the system facilitate safe operation. The dried material is not exposed to mechanical stress during drying and is pre-cooled before the dryer discharge. The technology - simple, convincing, and successful.

Direct (Triple drum)

Direct (Triple drum)

Andritz

JetMix – Anaerobic digestion mixing system

Evoqua - JetMix System, with its simple components sweeps all areas of a storage tank by creating a unique torroidal flow pattern.  Essentially, its floor-mounted nozzles combine with the action of chopper pumps to keep solids suspended or to resuspend solids that have settled, resulting in the desired homogenous mix. Provides power savings of up to 50% or more.

Submersible Low Speed Mixers – Flygt

Flygt Mixers - 4320’s revolutionary design that couples a Super Premium Efficiency, IE4, motor with an integrated adjustable speed. The result is a submersible mixer that delivers superior mixing with adjustability and simplicity, for unsurpassed energy savings. Flygt 4320 also enhances process optimization.  Making process modifications can change the thrust requirements by as much as 50%.  The Flygt 4320 provides the mixing versatility to adjust to process changes without compromising mixing or sacrificing energy efficiency, eliminating concerns over how process modifications might impact the mixing thrust requirements.  Mixing speeds can be changed with the touch of a button, quickly and easily, putting you in complete control.   The ease and versatility allow a higher degree of overall process optimization, for even more energy savings.  Flygt 4320 mixers are ideal for activated sludge processes that require adjustments to aeration levels, changing aeration /anoxic zones, changing headworks operations, or changing MLSS concentrations. ​

Submersible Compact Mixer – Flygt

Flygt Compact Mixers - Engineered for flexibility, versatility and lean installation, these space saving mixers offer highly efficient solutions for any tank shape and size. Our compact mixers easily blend highly contaminated fluids high-density or high-viscosity liquids, and liquids with fibrous material. Few components, low capital investment and straightforward service routines make Flygt compact mixers the economical choice for a broad range of mixing applications, like Activated sludge treatment selector basins, sludge mixing and aeration basins.

Top Entry Mixers

Flygt Top Entry Mixers