Dewatering — Solids Handling

Centrifuges, screw presses, belt presses, and polymers — reducing sludge to stackable cake and cutting your disposal costs.

What is Sludge Dewatering?

Dewatering removes water from sludge to produce a stackable cake for land application, landfill disposal, or further processing such as drying or incineration. The drier the cake, the lower the volume and weight — and hauling and disposal costs are typically the largest ongoing expense in a treatment plant's biosolids program. Selecting the right dewatering technology for your sludge type and throughput makes a measurable difference in operating costs year after year.

Equipment We Represent

DryCake — Decanter Centrifuges (Hybrid Drive)

Proprietary Hybrid Drive system recovers scroll braking energy to assist bowl rotation — reduces energy consumption by 30%
Full torque at all speeds with automatic feed and polymer optimization
Open scroll construction for wear resistance and easy maintenance
Independent solids scraper for high-viscosity cake
Available in 2-phase or 3-phase configurations, 4" to 31" diameter
Factory-built skids (UL/CSA certified) with remote diagnostics

DryCake — DRYPRESS Screw Press

Three-stage progressive dewatering: draining, thickening, pressing
Feed: 0.8–6% dry content → cake: 15–25% dryness
Pneumatically regulated back-pressure cone for adjustable output
Motorized washing ring and accessible drum design
Available as complete skids with control panel, conveyor, sludge pump, and polymer system

DryCake — DRAIMAD TEKNOBAG Dewatering Bags

Bag-based dewatering system for smaller installations or temporary applications

DryCake — SCUDRAIN Sludge Drainage System

Gravity-based sludge drainage technology

Prime Solution — Rotary Fan Press 2.0

Low-speed, totally enclosed mechanical dewatering
200+ installations worldwide
Small footprint, expandable throughput
One primary wear part — lifetime warranty on filter screens
Available as free-standing press, complete skid, or mobile trailer-mounted unit
Easily automated with minimal operator interaction
BABA compliant — 100% manufactured in the USA

AeroMod — TRITAN Belt Filter Press

Stainless steel three-belt design with seamless belt technology for extended belt life
Integrates a sludge pre-thickener and press into a single unit — eliminates the need for separate thickening equipment

SNF Polydyne — FLOPAM Dewatering Polymers

Cationic FLOPAM polymers optimized for centrifuge, belt press, screw press, and vacuum filter dewatering
Available in dry, emulsion, and liquid forms
Full cationic charge range to match your sludge characteristics
FLOQUIP feed equipment for automated polymer preparation and dosing

Applications

Municipal Biosolids Dewatering
WAS, primary sludge, digested sludge, and blended sludge

Industrial Sludge
Food processing, industrial wastewater, and process sludge

Mobile Dewatering
Prime Solution trailer-mounted units for temporary or emergency applications

Small to Large Plants
Dewatering bag systems for small flows up to large centrifuges for high-volume plants

Buy American Projects
Prime Solution RFP 2.0 is BABA-compliant for federally funded projects

Polymer Optimization
SNF Polydyne polymer programs to maximize cake dryness at minimum chemical cost

Why Winschel Environmental?

Full technology spectrum — centrifuges, screw presses, belt presses, and gravity drainage from one representative
Energy-efficient centrifuge option — DryCake Hybrid Drive cuts centrifuge energy consumption 30% vs. standard designs
USA-manufactured option — Prime Solution RFP 2.0 is BABA-compliant for projects requiring domestic manufacturing
Mobile dewatering — trailer-mounted Prime Solution units available for temporary or emergency needs
Polymer program included — SNF Polydyne polymers and FLOQUIP feed systems to optimize dewatering performance
Virginia coverage — local support for startup, polymer optimization, and service