Weaverville Community Services District Selects OSEC L System For Municipal Drinking Water

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Weaverville Community Services District Selects OSEC L System For Municipal Drinking Water

The Weaverville Community Services District (CSD) is a publicly owned municipal water agency located in Weaverville, California. The facility needed to retrofit an existing building and switch from a gas feed system to an on-site hypochlorite system. The conversion from gas to hypochlorite is a trend being seen in many Northern California districts as regulations on chlorine gas increase.

The Challenge
Weaverville CSD wanted to convert their existing gas chlorine system to a safer and more effective hypochlorite system; but because of small ppd requirements and a remote location, bulk hypochlorite delivery was determined to be too expensive. General manager Wes Scribner started looking for onsite technologies as a cost saving alternative.

Part of his challenge included finding the right hypo technology that is accessible and not too expensive for the plant capacity required. Traditionally, on-site generation systems have been too expensive for customers with lower chlorine demands to recognize a significant return on investment. The new design of the OSEC L system not only met the tight footprint restrictions, but also offered a turnkey solution that is affordable to install and operate.

The OSEC L system is a low-capacity bipolar brine-based hypochlorite generator. It is an inherently safe alternative to chlorine, sodium hypochlorite and calcium hypochlorite; the OSEC L system does not require handling of any hazardous chemicals. The generator produces a dilute hypochlorite solution <1.0 wt% concentration using saturated brine, water and electricity in an electrochemical process. With an embedded process controller the system is fully automated and works in batching operation mode.

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