Belt filter and rotary presses are crucial in wastewater treatment for dewatering sludge and biosolids, improving the efficiency of solid-liquid separation. Belt presses operate by applying pressure to sludge, squeezing out water to produce a dryer cake, often with features like variable pressure sections and energy-efficient designs. Rotary presses use a mechanical process that is compact and effective, making them suitable for facilities with space constraints or limited operator availability. Both systems are designed for low maintenance and high efficiency, ensuring consistent performance in a variety of industrial and municipal applications. Check out some product options below.
Alfa Laval AS-H Belt Press KPZ
The Alfa Laval AS-H Belt Press KPZ is designed to handle high volumes of biosolids/residuals and deliver exceptional cake dryness. It has a high capacity design with low polymer consumption and power usage. It offers up to a 70 PLI vertical pressure section, an independent, operator-level gravity deck and vertical pressure dewatering sections for maximum process control, especially if process conditions vary. Its low maintenance, long-life design is flexible and easily upgraded as needs change. It is suitable for municipal biosolids and residual sludge types and a wide variety of industrial solid/liquid separation applications. It incorporates variable energy mixing, flocculation, gravity drainage and pressure filtration. 713-934-3160; www.alfalaval.com
BDP Industries 3DP Belt Press
The 3DP Belt Press from BDP Industries is a modern belt press with recent improvements designed for increased odor control and solids containment. New features include odor hoods, mist-reducing showers, piped away filtrate and increased automation. The increased containment of material has led to an even more efficient machine while also becoming more operator-friendly. 518-695-6851; www.bdpindustries.com
Bright Technologies, Division of Sebright Products, 0.6-meter skid-mounted belt filter press
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. With a compact, walk-around skid design, it 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. Cake solids of up to 35% can be achieved. Rates of 25 to 50 gpm make it suitable for small applications or when a processor has outgrown dewatering containers. 800-253-0532; www.sebrightproducts.com
Prime Solution Rotary Fan Press
Prime Solution’s Rotary Fan Press is a simple mechanical dewatering solution that provides effective results and eliminates the need to apply for waivers. It addresses the concern of space constraints and limited operator time available, with twice the throughput in a smaller footprint. Having the ability to start the machine up and schedule automatic shutdown by volume or time allows plant personnel the freedom to focus on other key responsibilities during the day. It offers low maintenance and wear parts, along with low energy and water use. 269-694-6666; www.psirotary.com
