Write short notes on aqua privy latrine, Civil Engineering

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Q. Write short notes on Aqua Privy Latrine?

There are a sort of latrines also called septic tank latrines. These are constructed over septic tanks & flushing is also provided. The excreta together with flush water falls into the septic tank where it under goes anaerobic decomposition. The effluent flows to filters and then to soak pits. These tanks are designed for a capacity of 70 Liter / head / day and for a population even up to several thousands. A raw of water closets may be constructed over single septic tank. A grit chamber is necessarily provided at the inlet end of the septic tank which detains hard solid masses of faces which would other wise pass undigested at the other end . the grit chamber is made by erecting a wall at 1/6th the length of tank from in let side. This wall has an opening at the bottom so that excreta pieces are held on the surface in grit chamber till they are decomposed and digested while the main flow passes down through the opening at the bottom.


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