Pump blockages and rags are significant barriers to energy and operational efficiencies at pump stations, causing unscheduled shutdowns, safety hazards for operators, costly equipment repairs and increased power usage due to a decrease in the pumps’ hydraulic performance. Scottish Water observed these negative effects—caused by an influx of wipes and rags—throughout a network of area pump stations. Engineers looked to a solution from two JWC Environmental Channel Monster grinders at one of its most problematic sites.
In 2009, the West Lafayette Wastewater Treatment Plant in Indiana seized revenue- and energy-savings opportunities for the thousands of gallons of grease the facility receives per month. The plant implemented a major upgrade and installed two microturbines to generate electricity to make use of the methane produced in its digesters. It also installed a grease receiving station to convey grease to the digesters to increase methane production for the microturbines.
To screen wastewater with 1/4-in. perforated plate panels means the ability to capture a lot of material. The result? Mounds of trash and debris—of all sizes and odor types—are pulled from the wastewater channel along with plenty of fecal matter. That is where one may find value in JWC Environmental’s Screenings Washer Monster (SWM), a compactor incorporating a grinder, wash zones and a compactor to clean debris and fecal matter and produce a cleaner, drier screenings discharge.
Management of a 1.2-million-gal-per-day (mgd) wastewater treatment plant (WWTP) in Star, Idaho, reports successful installation of a solids separation and removal system that protects membranes in its new state-of-the-art membrane bioreactor (MBR) addition. Meanwhile, immediate maintenance benefits have been gained through elimination of aerator plugging in the facility’s three lagoons.
Hawaii typically conjures up images of azure seas, swaying palms and pristine beaches. Behind the romance of this tropical paradise is a reality that faces most wastewater treatment professionals today—a rising population placing increased demands on treatment facilities and tougher regulatory requirements.