Sanitary Wastewater Treatment with Electro-coagulation in Effort to Replace Traditional Septic/Drain Field System in Western Washington
Abstract:In Washington state large scale (100 – 1000gpm) WaveIonics electrocoagulation (EC) systems have proven successful at removing common pollutants such as suspended particles (turbidity), heavy metals and emulsified oils in storm and process water. The goal of this study was to determine if full scale WaveIonics EC systems could treat domestic wastewater to levels that would allow discharge to a stormwater infiltration pond and/or potential non-potable re-use.
Parameters measured included: five day biological oxygen demand (BOD5), total suspended solids (TSS), fecal coliform, turbidity, pH, dissolved oxygen (DO), ammonia, total nitrogen, nitrate & nitrite, total dissolved solids (TDS), chromium, copper, lead and zinc. Fecal coliform bacteria was reduced by 99.99 %, BOD5 was reduced by 44% and TSS by 39%.
Based on the results from this study, EC treatment of sanitary waste water is a viable alternative to traditional disinfection methods and could be a compact solution for BOD and TSS reduction.
Document Type: Research Article
Publication date: January 1, 2009
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