The 10KLD capacity plant was commissioned in June at the station, as its existing system is not connected with the main sewage line.
CHENNAI: A sewage treatment plant that operates without electricity and produces minimal sludge without any emission has been installed at CMBT metro station.The plant, which is expected to save 2.8 lakh annually for Chennai Metro Rail Limited CMRL ), will be installed at three other stations, including Guindy , Airport and Nanganallur Road metro.CMRL has installed anaerobic sewage treatment system at CMBT metro, where microorganisms break down organic load in the absence of oxygen.
At CMBT metro, officials said, there is more liquid waste than solid in the tanks.
Earlier, the station had collection pits from where the waste was removed at regular intervals.
Hence, it saves 15,000 on purchase of water and 8,000 for sewage removal every month.
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