Thirty-one households in Narayan Tole squatter settlement near Maharajgunj of KMC-3 , Kathamdu, have recently constructed ‘up-flow bio-filters’ to treat septic tank effluent. They have constructed two such filters spread in over 342 sq ft area with the financial and technical support of UN-HABITAT Water for Asian Cities Programme Nepal, WaterAid Nepal and Lumanti Support Group for Shelter.
Only 16 households in the area had toilets until a year ago. They used to let their toilet waste mix directly into nearby rivers. [...] All the households in the area now have toilets. They have constructed a 180-metre-long sewer to channel the toilet waste to the filters.
The filter first separates solid and liquid wastes and treats the liquid waste. After the treatment, the waste water [flows] into the rivers while the solid waste remains in the tank. The bio-filters were constructed with Rs. 0.2 million collected from the donors and locals. The locals have formed Narayan Tole Sudhar Samiti (NTSS) to take care of the filters.
Kalpana Karki, treasurer of the Samiti, told that it collects Rs. 35 per month from each household for the maintenance of the filters. [...] “We will use the digested solid waste as fertilizer in our fields,” Karki said.
Related news: Nepal, Kathmandu: squatters seek NGO help to defeat river pollution, Source Weekly, 15 Dec 2008
Source: NGO Forum,10 Feb 2009
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