Decentralised wastewater treatment plant is a site-specific system. The different components of the system settler , anaerobic baffled reactor , planted filter and polishing pond are planned and designed according to the treatment requirement of the wastewater generated. Average water consumption for domestic usage in India is 135 Lpcd. 80% of the water which is used or consumed for domestic purposes comes out as a wastewater. An on-site wastewater treatment plant like DWWT can be installed to treat and recycle this wastewater in order to close the loop. The capacity of the system may vary from 1KLD to 100 KLD . For instance, DWWT system at CSE is designed for the capacity of 8 KLD to treat and reuse wastewater which is generated by the staff population of 150-200.
CSE (n.y): Cost Estimation for Planning and Designing of Decentralised Wastewater Treatment System. New Delhi: Centre for Science and Environment (CSE) URL [Accessed: 15.04.2013]