This story is from December 12, 2020

Three Bhojpur villages to get liquid waste treatment ponds

Three Bhojpur villages to get liquid waste treatment ponds
Picture for representational purpose only.
PATNA: Three villages of Bhojpur district in Bihar are set to get an eco-friendly and technically suitable liquid waste management system that would also help in conservation of water.
Indian Institute of Technology-Patna (IIT-P) and Unicef (Bihar), are technical partners of the project. The villages selected for the new technology are in Koilwar, Ara rural and Barahra localities, each having about 600 households.
Bhojpur DM Roshan Kushwaha said it is a pilot project.
Most of the grey water coming out of the households after cooking, washing utensils and bathing go unused and this project aims for treatment and storage of such water for other common purposes. It involves filtration and purification of biological liquid wastes through plants, the DM said.
“After assessing the results in three villages, the project will be extended in other villages of the district,” the DM added.
An IIT team headed by Subrato Hait of civil and environmental engineering has already inspected the three sites and technical advice has been extended. UNICEF state consultant Nikhil Singh said the the concept of the project is to collect liquid waste coming from domestic drainage network. This will be connected with two major drains to be constructed on vacant government land.
This major drain will open into a specially designed catchment pond of 900 square meters. He said another storage tank of 1200 square meters will be constructed at a little distance. The 150 square meter space between the two ponds will have a wetland with six species of plants scientifically recognised as microbial pollutant absorbers.

“The four plant species selected for the purpose and locally available are Canna Indica ( Sarvajya), Phagmites austrialis ( Naarkul), Glyceria maxima ( Sweet grass) and Baumea articulata (Van Haldi), while two others will be brought from other places in consultation with IIT experts,” Singh said.
The final meeting of the district administration with IIT and Unicef experts is scheduled on December 17 after which work on the project will begin in all the three villages.
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