The Dover Township Sewer Authority (DTSA) Wastewater Treatment Plant in Dover, PA is an 8.0 MGD plant that processes sewage from Dover Township and surrounding municipalities. In addition to the new influent screen, the treatment process includes influent pumping, grit removal, biological nutrient removal (BNR), final clarifiers, and ultraviolet disinfection.

In 2020, as part of a plant upgrade, DTSA replaced their influent grinder with a SAVÉCO (formerly Enviro-Care) FSM Filterscreen to remove debris from the incoming wastewater and prevent damage and clogging of downstream processes. The screenings are discharged to an FSM Washer Compactor to wash, dewater, and compress the screenings.

The Screening equipment was started up in October, 2020 and the operations staff was trained on the operation and maintenance of the equipment.

The FSM Filterscreen is a fine screen with a very high capture rate, ideal for wastewater treatment plants seeking an influent screen that can do the job right. The screen is a fully automatic, self-cleaning screen constructed with 304 or 316 stainless steel. Perforations from 3 mm to 12 mm provide the right screenings removal and protection of downstream equipment. The screenings retention for an FSM screen with 6 mm holes is double that of a 6 mm bar screen.

The Washer Compactor is a screw auger press used to reduce the weight and volume of your screenings by washing the screenings and returning the organic material back to the plant flow. It washes out more than 95% of the fecal matter, then dewaters, compacts and transports screenings to produce a clean dry product. The Washer Compactor is designed to handle debris ranging from rags and wipes, to bricks, rocks, and 2×4’s.

Features & Benefits of SAVÉCO Screens:

• Extremely high capture rate
• Self-adjusting brush ensures effective cleaning with low brush wear
• All 304 or 316 stainless steel construction
• Handles large quantities of grease in the flow
• Minimal water use for cleaning
• Low maintenance requirements

SAVÉCO screens combine practical design with reliability and efficient operation.

SAVÉCO offers a variety of mechanical bar screens with a wide range of sizes, configurations, and screen openings.

We would welcome the opportunity to meet with you to discuss your screenings application.

For more information, contact us at:

By Mike Gillespie, P.E., President at Envirep

For a complete list of our products, CLICK HERE to view our manufacturer’s line card.

Envirep/TLC is a leading manufacturer’s representative and service provider for municipal and industrial water and wastewater treatment and pumping systems. We represent manufacturers of quality products, serving Eastern Pennsylvania, Maryland, New Jersey, Delaware, Washington D.C., Northern Virginia, and West Virginia.

The Envirep staff of engineers and service technicians have decades of experience in equipment selection, design, operation, and maintenance. We are committed to providing our customers with prompt and professional service. We assist engineers and end-users with technical support, from new plant design and plant upgrades to equipment replacements and service. Our experienced team is here to recommend the right product, part, and service for your application.