Product Focus: Biosolids Management/Headworks

Product Focus: Biosolids Management/Headworks

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Aftermarket Parts/Service


he IsoDisc from IEP Technologies is an effective, self-actuating and self-resettable device providing explosion isolation to applications handling combustible dusts such as air aspiration inlets or clean air ducting to interconnected equipment. It is ATEX-certified and virtually maintenance free. 855-793-8407;

Belt Filter/Rotary Presses


The C-Press screw press from Andritz Separation provides high performance combined with compact design, and a low operating cost in the sludge dewatering process. With its direct drive system and conical shaft with constant screw pitch, it has a feed capacity ranging from 4 to 418 gpm, with an outlet capacity from 44 to 2,866 lbs/h. In addition to a long life cycle, the press also offers easy operation, low maintenance and reduced water consumption. The screw speed is automatically adjusted according to the input oscillation, ensuring a continuous flow with optimized performance in drying and capture rate, even during the washing phases. It complies with all regulations on such issues as safety, hygiene and environmental protection. 800-433-5161;


The compact 0.6-meter skid-mounted belt filter press from Bright Technologies, Division of Sebright Products, has stainless steel frame and roller construction as well as radius wedge zone and wing roller for sludge dewatering. Components include a sludge pump, polymer system and washwater booster pump. Options include a sludge flowmeter, air compressor and discharge conveyors. The compact walk-around skid design can be utilized in as little as a 10-by-20-foot floor area. The Boerger rotary lobe sludge pump has a maintain-in-place design offering ease of maintenance. Cake solids of up to 35% can be achieved. Rates of 25 to 50 gpm make it ideal for small applications or when a processor has outgrown dewatering containers. 800-253-0532;


Charter Machine’s Royal Screw Press offers a small footprint and high efficiency design that has very low power consumption with a higher throughput. Using an integrated thickening drum, the system can concentrate feed solids up to 5% DS. The complete skidded system is ultra-quiet, large capacity and low maintenance. The removable wash-water nozzle ring travels, with its self-cleaning nozzles, laterally the length of the drum and gives a maximum clean with minimum amount of water. The sleek skidded design includes controls, drum thickener, sludge concentrator tank, sludge pump and screw press. 732-494-5350;

Biosolids Handling/Hauling/Disposal/Application


The rotary drum thickener from BDP Industries is a suitable solution to thicken at water and wastewater treatment facilities. Internally baffled thickening zones lead to higher solids capture and higher throughput capability, all with reduced polymer usage. A full stainless steel construction with all bearings located outside of the enclosure makes operations and maintenance activities simple and easy. 518-796-1440;


An Electro-Osmosis Dehydrator from ELODE USA can reduce sludge disposal cost by 60% and landfill acceptable by having much drier sludge cake. This compact machine can easily retrofit in line with many existing presses. It uses the electrical potential difference in the sludge cake to separate water in the process and it works on 95% of municipal cakes tested without any chemical, polymer, heat nor mechanical press. It can be used to turn 15 to 20% DS cake to 40 to 45% DS quickly. 201-568-7778;


The Level Lodor from JDV Equipment provides water quality professionals a means to dispose of processed waste, control odors and limit waste exposure to operators. It uses auto-leveling technology to level the waste material. This increases the fill percentage of a dumpster without operator intervention, slide gates or extensive control strategies, while limiting exposure to potentially hazardous material and working conditions. Made for indoor or outdoor use, it can save valuable indoor square footage or eliminate the need for additional building space by installing the system outdoors. The covers are custom made to cover standard 20-, 30- and 40-yard dumpsters, with an overall footprint barely larger than a standard dumpster. The shaftless option uses replaceable ultra-high molecular weight liners that will reduce screw wear. The shafted option can be used for increased efficiency and has easily accessible grease points. 973-366-6556;


The Longopac Fill continuous bag system from Paxxo can connect to the discharge point of machines used to move, dewater or compact screenings, grit and biosolids. Material is then deposited in a 90-meter-long continuous bag for odor containment and spillage control. The cassette bag can be sealed with ease, and the material and odors are trapped inside, cutting down development of bacteria and fungus spores. 770-502-0055;


The FLUMP unmanned remote-control dredge from SRS Crisafulli removes biosolids and sediments. It is easy to use from a workstation or mobile phone, and easy to transport at approximately 6,000 pounds. It delivers lower operator exposure to potentially hazardous materials, high performance with minimum turbidity, and faster operations with high-speed reverse and pivoting traverse systems. Its pumps are manufactured with an ASTM AR400 mild carbon steel (BHN 400 hardness) pump volute and impeller, and dual carbon/ceramic shaft seals. The pump is mounted directly behind the cutterhead and is lowered into the pond on the dredge’s ladder. Standard, severe duty or custom models are available. 800-442-7867; 

Biosolids Heaters/Dryers/Thickeners


Hydro-Thermal’s Non-Obstructing Heater is suitable for heating and maintaining the digester’s precise temperature (+/- 1 degree F) for improving methane production and sludge stabilization. It also eliminates hot or cold spots in the digester, even during the winter months. It utilizes a small footprint, with direct installation into the existing piping. It is produced using wear and corrosion-resistant metallurgies to withstand grit and highly abrasive materials. Its straight-through design can ensure that rags or wipes do not get caught and plug the heater. With its unrestricted flow there are minimal pressure drops, allowing for a wide range of heating capacity. The heaters have no hot surfaces where burn-on can begin to occur. 800-952-0121;


Rising concern of PFAS contamination of water and soil has sparked interest in this emerging contaminant as it pertains to wastewater sewage sludge. BioCon ERS from Veolia Water Technologies offers a safe and sustainable drying and combustion system for treating PFAS-laden municipal sludge. It combines the efficiencies of a convective air medium-temperature belt dryer with a biomass furnace, which uses the dryer output (dry product) as a biofuel. The heat available in the exhaust is captured and used as process heat in the belt dryer. This integrated dryer and energy-recovery system is sustained by heat generated by the combustion of biosolids to drive the drying process, and in turn the dried material fuels the combustion system, making it a fully energy sufficient and sustainable operation. It combusts sludge between 1,400 and 1,800 degrees F, which is higher than the minimum temperature required for PFAS destruction. 919-677-8310;



Pieralisi offers a variety of high-efficiency solutions for sludge thickening and dewatering with significant environmental and economic advantages. The separation of liquid-solids occurs through the centrifugal force generated inside the decanter, resulting from the high rotation speed. The decanter is equipped with a main motor connected to the horizontal axis of the bowl. The product is fed into the machine through a feeding tube. After the separation, the clarified liquid is discharged from one side of the bowl through devices sized according to the specific application, and the dehydrated cake, accumulated on the bowl walls, is transported by a scroll and discharged on the opposite side of the clarified liquid outlet. The decanters are suitable to treat sludge from environmental, chemical, oleo-chemical, mineral- fuel and lube oils, animal-based products, food and beverage processes and can be configured to meet the application requirements. 513-275-4720; 

Chemical/Polymer Feeding Equipment


The low shearing pumping action of FLEXFLO M4 peristaltic pump from Blue-White Industries allows it to gently and precisely pump chemicals that off-gas, including peracetic acid and sodium hypochlorite, with no vapor lock and no lost prime. Advanced features include a highly responsive and intuitive 5-inch display, firmware that can be field updated, and easy-to-attach M12 watertight connectors. The pump also has built-in tube failure detection, requires very little maintenance, and has a 10,000-1 turndown ratio. 714-893-8529;


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 the tote on the platform and monitoring begins, as there is nothing to install inside the tote. Monitoring systems prevent costly overfeed conditions and enable the documentation of the actual amount fed, which keeps the plant in compliance with federal and state reporting requirements. Users can remotely monitor from SCADA or PLC. The unit is available with the SOLO G2 digital display or with the advanced Wizard 4000 chemical inventory management system. 800-893-6723; 

Dewatering Equipment


The ADS 30-yard open-top roll-off dewatering unit from AQUA-Zyme Disposal Systems can be filled with 22,000 to 25,000 gallons of biosolids at 1% to 2% solids in about two hours. After draining for 24 hours, the unit can be picked up using a standard-capacity roll-off truck and transported for solids disposal. Sludge volume can be reduced by 80% with reductions to 98% in BOD, COD, FOG and TSS. Effluent is clear, the unit has few moving parts, and the size of filter media can be selected according to job requirements. Standard equipment includes a roll-over tarp system; side, floor and center screens; 1/4-inch floor plate; 7-gauge side plates; four door-binder ratchets; eight drain ports; two inlet ports; and a long-handle scraper. Units are also available in a 15-yard size. 979-245-5656;


The Sludge King II roll-off dewatering container from Park Process incorporates an engineered design that eliminates trapped water in the bottom of the filter cake. The second center wall filter increases filter area by 33% producing drier cakes in less time. The plastic floor panels that cover the floor space between wall filters and center wall filters serve three purposes. They hold down the bottom of the filter elements, help eliminate standing water and facilitate dumping of filter cake. The inlet manifold is split into three inlets, each with a ball valve, allowing incoming flow to be distributed evenly into the three compartments formed by the two center-wall filters. 855-511-7275; 



S4SHR and S4SHR-LP 4-inch hydraulic submersible shredder pumps from Hydra-Tech Pumps are designed to continuously rip and shear solids with a 360-degree shredding action. The pump’s carbide-tipped impeller and hardened macerator suction plate work together to produce a violent shredding action that keeps the discharge open. This 4-inch pump is suitable for municipal, industrial, agricultural and institutional waste applications. The S4SHR-LP is narrower in size at 21.5 inches, which allows it to fit through most manholes. Depending on the application, there is a version for portable or fixed installations. A guide rail assembly is available for stationary applications. Combined with HT16 to HT25 power units, the S4SHR is capable of flows up to 810 gpm. The safe and variable-speed hydraulic drive can be used where electric power is hazardous or impractical. 570-645-3779;


Self-priming Chopper Pumps from Vaughan are designed to be easily accessed outside of the wet well while pumping waste solids at heavy consistencies, without plugging or dewatering of the solids. They eliminate the loss in production and mess, along with making it easy to service the pump to get it back in operation. 888-249-2467; 

Grit Handling/Removal/Hauling


Inspired by extensive expert CFD modeling and developed rigorously in actual field conditions, the PISTA INVORSOR grit removal system from Smith & Loveless combines the power of proven particle capture methods: enhanced settling by inclined plates meeting a defined surface overflow rate with the established hydraulic forced vortex to achieve ultra-fine grit removal efficiency down to 75-micron particle size across all flows with no derating. It helps deliver lower capital and operational costs, larger capacity in individual units, greater design flexibility for inlet-outlet design options, and a higher surface-area-to-volume ratio to generate consistent fine grit capture during low flow, daily flow and peak flow conditions — up to 50 mgd in single units. 800-898-9122; 

Septage Receiving Stations 


The Trash Master 600 Auto Screen from ScreencO Systems uses gravity to separate the trash from the flow stream through a 6-inch inlet with dual fan spreaders. It is capable of power offloading vacuum trucks with a single 6-inch offload or 2- to 4-inch offloads at the same time at a rate of up to 800 gpm. It comes with an aluminum hopper (optional stainless steel), with 8-inch outlet cam and 3/8-inch gaped 1/4-inch stainless steel bar screen. The stainless steel U-channel with plastic lined titanium UHMW provides for years of wear, with a high-strength alloy steel 11 1/2-inch shaftless screw that moves trash to a waste container. The stainless steel U-channel has slotted drain holes and a center channel bar screen for cleaner and dryer trash. A custom-built stainless steel bar rake and cleaning brush are included for easy maintenance. 208-790-8770; 

Screening Systems 


The Forty-X Disc Filter Armor Series from Evoqua Water Technologies is a high-rate filtration device that utilizes an integrated pre-screen and stainless steel panels that are designed to accommodate high solids loading capacities and greater hydraulic throughput. The woven optimum primary mesh filter panel utilizes 316L stainless steel threads to create a weave that improves solids collection and rejection, which makes this disc filter suitable for storm flow applications. The panel configuration includes a molded structural frame and pressured assisted seal, allowing the panels to sustain and operate at a higher headloss and provide higher throughput when compared to other disc filter synthetic media. The series combines the technology of outside-in and inside-out filtration into a single PLC controlled unit with influent water flowing through the prescreen (outside-in) into the disc filter panels (inside-out). This combination of two filtration technologies provides an effective option for challenging applications. 844-409-9492;


Federal Screen Products custom fabricates MBBR Screens that maximize flow rates while containing biofilm carriers, helping save on maintenance costs. They are fabricated with wedge wire by resistance welding V-shaped wire on shaped support rods. These thousands of fused points create a honeycomb-like structure that provides a strong and accurate continuous slot. This results in a product that provides accurate flow, distribution and effective media and debris filtration and retention. Wastewater screens are available in a wide range of profile wires to suit most systems, and can be designed in flat, curved or cylindrical form to meet customers’ drawings and specifications. Robust for vertical wall applications, screens are also self-cleaning when designed to the flow rate and are passivated in-house, which allows for a quality of finish, extending product life. 905-677-4171; 


The JWC Environmental XE Screenings Washer Monster is a fully automated grinding, washing and compacting system. It can handle the first flush loading associated with storm flows. It is finely tuned to optimize the cleanliness and dryness of screenings based on the feed rate; reducing the volume of screenings that must be hauled away. It preconditions screenings with a Muffin Monster two-shafted grinder that breaks open rags, plastics and trash to promote washing and removal of soft organics. Liquefied organics return to the plant flow and allow it to achieve cleaner screenings. It has numerous control parameters for programmable wash cycles and a triple-zone spray wash for ultimate cleaning. Its dual-helix auger includes a brush attachment that keeps the screen clean and eliminates material catch points. 800-331-2277;   


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