​Four Biosolids Handling and Disposal Technologies That Bridge Efficiency and Environmentalism

​Four Biosolids Handling and Disposal Technologies That Bridge Efficiency and Environmentalism

Boerger BLUEline rotary lobe pump.

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In the evolving landscape of wastewater treatment, advanced biosolids handling and disposal solutions are emerging as a cornerstone for efficient operations. These innovations, tailored for diverse sludge compositions, aim to maximize dryness, minimize disposal costs and even incorporate smart features for remote operations. From self-priming, reversible pumps tailored for varied biosolids types to pioneering methods like electro-osmosis for moisture removal without chemicals or heat, the sector is witnessing a technological leap.

Boerger BLUEline rotary lobe pumps
Boerger BLUEline rotary lobe pumps are a self-priming, valveless, positive displacement pump used for conveying viscous and abrasive materials. They are resistant to wear and provide pulsation-free operation. Operation is fully reversible, with dry run capability and flow rates up to 7,000 gpm. They are constructed with maintenance-in-place design, allowing for all wetted parts to be easily replaced through the front cover without removing pipe or drive systems. The pump conveys biosolids (primary, waste activated sludge, return activated sludge, digested, thickened, etc.), grease, sewage, scum, lime slurry, alum sludge, permeate and polymers. 612-435-7300; www.boerger.com

ELODE USA Electro-Osmosis Dehydrator
The compact Electro-Osmosis Dehydrator from ELODE USA can easily retrofit in line with many existing presses. It is specified to reduce sludge disposal cost by 60% by producing much drier sludge cake. 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; www.elodeusa.com

Paxxo Longopac Fill
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; www.paxxo.com

SRS Crisafulli FLUMP dredge
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; www.crisafullipumps.com


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