A Cost-Effective Way to Treat Pune's Open Sewage Canals

BiOWiSH™-Aqua dramatically improved the quality of water in a canal system in Pune, India, while also reducing noxious odors and flies in the system.

In Pune, one of India's rapidly growing cities, a canal system is used for the discharge of sewage and solid waste from homes, restaurants, and small businesses in the area. The canal flows through the city causing odors, flies, and water-borne pathogens. Furthermore, the wastewater does not get treated to remove pollutants before it's discharged into the nearby Mula-Mutha River, potentially affecting fish and other aquatic life.

Before treating with BiOWiSH™-Aqua, the average Biological Oxygen Demand (BOD) was 165 mg/L and Chemical Oxygen Demand (COD) 400 mg/L. After treatment, BOD had decreased to as low as 37 mg/L, or a reduction of 77.5%. COD was reduced by as much as 70 mg/L, or 82.5%.

Decreased BOD and COD indicate the increased availability of oxygen in the canal and river system, which is a key measure of aquatic health.

Residents near the canal also reported a dramatic reduction in odor and flies, potentially reducing the incidences of waterborne pathogens and the human health problems they cause.

To municipal governments around the world, BiOWiSH™ technology provides a simple, cost effective, and environment-friendly solution to treat sewage in open canals. In all, it was estimated that using BiOWiSH™-Aqua takes just about ten minutes a day using a simple drum, hose, and valve system.

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