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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.

Turbo Blower – Simple / Economic – Inovair

Inovair Geared Centrifugal Blowers (Turbo) offer 10-40% energy savings and a significant increase in efficiency over the traditionally used multi-stage blower or positive displacement blower equipment, Inovair’s integrated control systems also feature the ability to improve processes and process control for additional savings. Relative to other modern single stage centrifugal/turbo technologies, Inovair geared centrifugal blowers offer comparable or better efficiency at a more economical price, and with greater reliability than air bearing turbos. Efficiency translates directly into energy savings; the higher the efficiency of the blower, the larger amount of energy savings.

The Inovair IO Series turbo blowers deliver the lowest cost per cfm and meets a wide range of airflow demands. Inovair turbo blowers are the ideal solution for bringing efficiency to lower HP applications. With proven durability, best in class efficiency, and advanced airflow controls, the Inovair IO Series blower package can improve operational performance while also significantly reducing operating costs.

Click here for more information including Case Studies in Blue Springs-MO, Nixa-MO, and Gardner-MO      

Surface Aerator – Aqua-Lator

Evoqua -  ​The Aqua-Lator® surface aerator, introduced in 1963, is considered the first floating mechanical aerator for wastewater treatment applications. The powerful pumping action of the surface aerator transfers oxygen by breaking up the wastewater into a spray of particles, creating more surface area for atmospheric pressure to drive oxygen into the wastewater. At the same time, the oxygen-enriched water is dispersed and mixed, resulting in highly effective aeration for wastewater treatment. An optional accessory for Aqua-Lator Surface Aerators, is the Mist Eliminator® Spray Containment Dome providing mist and spray control for cold temperatures.

 

Screw Flow Centrifugal – RAS, Low Head, Digested Sludge- Wemco

Wemco® - Screw-Flow Pump by Trillium Flow Technologies is ideal for return activated sludge (RAS) service where the pump could perform against a low total dynamic head while operating close to its best efficiency point (BEP) where bearing loads and shaft deflections are at a minimum. The screw-shaped impeller has improved clog-resistance was also required to eliminate maintenance to free the pumps from rags. The screw centrifugal pumps feature a single, spiral vane impeller with no blade edges exposed to the flow. A cutting groove cast into the liner shears off material that builds up around the impeller periphery and re-introduces it into the flow. The screw-centrifugal design provides clog-resistant pumping for trouble free movement of solids, and fibrous and stringy materials. The steep head-capacity curve produced by the impeller provides additional head to help push through any partial blockages.

Coarse Bubble Diffusers – Evoqua: Envirex

Evoqua: Envirex Coarse Bubble Diffusers are used in aerobic digesters or sludge holding tanks and offer the advantage of sealing the piping system when the air is turned off. Wideband™ coarse bubble diffusers can be used in a variety of aeration and mixing applications. Diffusers and piping are available in 304L or 316L stainless steel. SnapCap™ coarse bubble diffusers consist of an EPDM diaphragm that seals the piping system when air is turned off and can be used PVC or stainless steel piping. Ideal for tough duty applications such as grit chambers, flow equalization, channel aeration and intermittently used basins.

Floating Splash Aerator-AquaJet & Direct Drive Mixer-AquaDDM – Cover & Saf-T Float Option Handrail option – Aqua Aerobic Systems

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 – JCI

JCI 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

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 – Quantum Low Profile BFP – Andritz

Andritz - Belt Filter Press - SMX & Quantum Low-Profile belt press that significantly simplifies operation, maintenance and lowers cost of ownership. Engineered with the operator in mind, our low-profile design provides modular flexibility, quality design, and low maintenance, without compromising performance, to create the most advanced belt filter press on the market today. The low-profile design eliminates the need for costly platforms. Access for maintenance has been improved with an overall height of only 60” where the gravity zone is at a convenient height. Wide gravity zone and optimized camber wedge to allow perfect distribution of the sludge and ensure gradually increasing pressure, minimizing the possibility of extrusion.

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Gravity Belt (GBT) and Rotary Drum Sludge (RDT / PDR) Thickeners – Andritz

Andritz GBT & RDT thickeners for efficient sludge treatment. The GBT has large open area, special feeder, and adjustable ploughs to optimize the drainage effect. Rotary Drum Thickeners (RDT / PDR) are considered to be an easy and efficient thickening solution prior to the dewatering process and can deal with biological sludge.With its simple design and small footprint, the PowerDrum is easy to install and requires little supervision and maintenance.

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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. Features Low energy consumption and totally enclosed design for odor control.

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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

Plate & Frame Press – Andritz

ANDRITZ filter press sidebar SP is the next generation of pneumatic filter presses from ANDRITZ SEPARATION and is fully modularized. As there are only a small number of hydraulic power pack sizes available, spare parts management is easier and service technicians require less training. THE ANDRITZ filter press SP series offers the right size for each throughput requirement.. Solids are separated reliably from liquids in the ANDRITZ quality you are accustomed to without using electricity. No compromise on process reliability, safety, or easy operation.

Features include a re-designed power pack that ensures stronger, faster, and quieter operation, a special pin design for better distribution of forces, and a manual pneumatic plate shifting system that provides additional operating convenience.

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Dry Polymer Preparation System -Polyblend & DynaJet- UGSI

UGSI PolyBlend® DP Series Dry Polymer Feed 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.

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PolyBlend & Dynablend Liquid Polymer Wetting & Activation System – UGSI

UGSI Chemical Feed Polymer Feed Systems offers the most comprehensive line of both hydraulic and mechanical polymer activation methods with the Polyblend® mechanical polymer feeders and with the Dynablend and Dynajet hydraulic polymer feeders. Both technologies have been used in the field for the past several decades. The Polyblend® technology was introduced in 1972 and the Dynablend and Dynajet technologies were introduced to the market in 1985. The combination means UGSI Chemical Feed now boasts over 10,000 installations and three decades of field experience.

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Dewatering Containers; Roll-off, Self-dumping (Sludge, Grit, Oil/Water), Polymer, Sand Separator – Park Process

Park Process - manufacturers dewatering containers, with a porous bottom to dewater sludge, grit or other fluid. The dewatered portion is collected to a drain. The false bottom can be permanent with stainless steel wedge bottom of various openings or with a disposable needle punched polypropylene geotextile filter. The most common type of dewatering container is based on a roll-off box design, although any type of container that is water tight can be made into a dewatering box. This includes containers that are commonly referred to as self-dumping hoppers and front loaders. Park Process manufacturers industrial filtration, Oil-Water Separators, batch and inline polymer make-up systems, eductors,  mud cleaners, and oil field mud hoppers.

Clarification – Segmented, Spiral Blade, Header, Suction Pipe, Thickeners, Solids Contact, Drives, Clearflow Jet/SBR – ClearStream

ClearStream offers a complete line of sedimentation equipment for most water, wastewater, and industrial applications including Jet Aeration and SBR systems. ClearStream utilizes cutting edge analysis and design technologies to custom design each piece of process equipment to meet each individual customer's needs. Capabilities include advanced computational fluid dynamic (CFD), finite element analysis (FEA) and civil / structural software codes, to ensure process performance and structural integrity. All mechanisms are fully designed in a 3-D CAD environment to produce the highest quality, and customer friendly designs possible. A complete line of precision gear drive and cast iron drives are available for clarifier and thickeners including segmented, spiral blade, header style, suction pipe, gravity thickeners and solids contact clarifies.

ClearStream offers a complete line of process equipment and jet aeration including SBRs for most water and industrial applications.

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.

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.

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.

Borger – Rotary Lobe Pumps & Grinders

Borger Rotary Lobe Pumps are positive displacement  pump transferring sludge to and from thickeners, belt presses, centrifuges, rotary presses,  digesters , air entrained fluids, DAF, and industrial slurries. They handle thick solids greater than 2% up to 2000 gpm and pressures up t0 150 PSI. Rotary lobe pumps can run dry and are capable of self-priming. The rotation of the pair of lobes increases suction chamber pressure and creates a vacuum on the priming side of the pump drawing liquid into the pump chamber.

Gas Safety Equipment for Digester Covers, Waste Burners & Flares – Shand & Jurs

Shand Jurs BioGas Safety Flame Arrestors

SJ BioGas LogoShand & 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.

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

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 Adaptive Low Speed Mixers – Flygt

Flygt Xylem - Adaptive Mixers for BNR control: Since treatment processes are variable, your mixer should be too with an integrated drive and advanced control capabilities for full control over your mixing. Flygt Adaptive Mixers can be automated to deliver only the thrust required resulting in remarkable energy cost savings. Sediment on your tank floor? Seasonal fluctuations? Process upgrades? Flygt Adaptive Mixers let you manually or automatically adjust output to achieve the required mixing process result. The same adaptive mixer model can be used for different applications across your plant, your investment in spare parts and backup mixers can be reduced.

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.

Mixers – Vertical (Flash, Rapid Mix, Flocculator) – Lightnin

Lightnin- Mixers A World Leader in Industrial Mixing since 1923, Lightnin has 90 years of unrivaled experience in industrial mixing technology, process knowledge, and technological innovation. Lightnin enjoys a global reputation for durable, long-lasting mixers, agitators, aerators, and flocculators for fluid process systems. We offer a full spectrum of impeller designs for diverse applications. In addition, we offer a worldwide service network, mixer repair, gearbox repair, and replacement parts programs. Look to JCI and Lightnin for knowledge, technology, and service excellence.

Top Entry Mixers

Flygt (Xylem) top-entry mixer portfolio  comprises four reliable Flygt models that can be tailored to required process needs. Based on the agitation requirements, Flygt can recommend the configuration that is right by specifying the impeller type, number, size, shaft and position. Flygt's three-blade hydrofoil impellers or the proven non-clogging Flygt banana blade impellers result is exceptional thrust and high bulk flow along with excellent energy efficiency. The Flygt banana blade, yellow impeller blades, with their backswept design, offer the advantage of self-cleaning properties to ensure clog-free operation, even in the presence of fibrous materials. Installation of Flygt top-entry agitators are ideal for use in:

  • Digester mixing
  • Sludge storage mixing
  • Anoxic and anaerobic biological treatment

Floating Splash Aerator-AquaJet & Direct Drive Mixer-AquaDDM – Cover & Saf-T Float Option Handrail option – Aqua Aerobic Systems

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.