Wastewater Treatment

This paper by Ajit Seshadri, Vigyan Vijay Foundation highlights the poor sanitation situation in India and argues that centralized approaches to wastewater treatment have had limited success and there is a need to make wastwater treatment people centric and effective through the use of decentralized systems such as DEWATS (Decentralized Wastewater Treatment Systems). DEWATS are locally organized and people driven systems that typically comprise a settler, anaerobic baffled tanks, filter beds of gravel and sand, and an open pond. The open pond or the polishing tank recreates a living environment for the wastewater to clean itself, naturally.Read More

Water quality of the Ganga as it passes through various states is presented in this document. The data has been collected over a period of many years from 39 water quality monitoring stations along the main river and 102 stations on its tributaries which were setup in 2008/09.

The study focuses on the parameters for dissolved oxygen, (DO), biochemical oxygen demand (BOD) and faecal coliforms (FC) as these indicate the biological health of the river. The period of study for the river Ganga is 1999-2008. The study finds that most of the water quality parameters studied do not meet the standards.Read More

Building bye-laws are a set of standards used to regulate various facets of a building everything from its design to its safety features. In these 'Model Building Bye-Laws', the Town and Country Planning Organisation (TCPO) under the Ministry of Urban Development (MoUD) has created a guide for State Governments, Urban Local Bodies, Development Authorities to help them play a more effective role in enforcing the implementation of the master plans.Read More

This study by the Central Public Health and Environmental Engineering Organisation (CPHEEO) assesses the status of water supply, sanitation and solid waste management in selected 300 cities and towns of India including all metropolitan cities and selected Class I and Class II urban centres. It estimates the requirement of funds for full coverage of population by these services in the urban areas of the country from 1999 to 2022 (at five yearly intervals). Overall, the study confirms the normal notion that the metropolitan cities are better provided for than the other size class of urban centres.Read More