Jan 09, 2015

Pennsylvania Power Plant Saves 1.3 Million Gal of Water Per Day

Covanta’s Delaware Valley facility has installed GE’s RePAK water reuse technology in the power plant’s cooling tower

water reuse, water conservation, green technology, Covanta Delaware Valley

GE honored Covanta with the Return on Environment (ROE) award to recognize the company for its reductions in water usage.

The Chester facility generates up to 90 megawatts of clean energy from 3,510 tons per day of municipal solid waste. Previously, the plant used 1.3 mgd municipal drinking water in its waste conversion process, costing the company thousands of dollars in daily water purchases.

To reduce facility operating expenses and the consumption of local water resources, Covanta Delaware Valley upgraded the facility by installing GE’s RePAK combination ultrafiltration (UF) and reverse osmosis (RO) system as a tertiary treatment package. The new system enabled the plant to reuse 1.3 MGD of treated discharge water from a nearby municipal wastewater treatment plant for the facility’s cooling tower.

GE installed two RePAK-450 trains, each producing 450 gpm of purified water. As a result, Covanta Delaware Valley has eliminated the need to purchase 1.3 mgd of local drinking water a day, which results in financial savings in addition to the environmental benefits.

GE’s RePAK equipment was delivered in 2014, with commissioning taking place the same year, making Covanta Delaware Valley the first North American company to deploy GE’s RePAK technology.

The ROE award honors a environmental (water, energy, resource) accomplishment. During the ROE three-tier selection process, GE examined set goals as well as the achieved environmental, operational and financial benefits, ultimately recognizing Covanta and its water savings for improving environmental and industrial operational goals while balancing industrial demands.

GE’s RePAK combined treatment system reduces the equipment footprint up to 35% as compared to separate UF and RO systems. By combining the UF and RO into a common frame with common controls and GE’s single (patent-pending) multi-functional process tank, GE also is able to reduce the capital costs and field installation expenses when compared to the use of separate UF system and RO systems with multiple process and cleaning tanks.

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