Ajay Kumar Garg Engineering College, Ghaziabad
1. What is Decentralised wastewater treatment system? Decentralised wastewater tretment system (DWWTS) is an approach consisting of different technologies to provide wastewater treatment solutions for small, individual or cluster type facilities. It is a sustainable method to treat domestic wastewater which is generated from the office campuses, residential societies and institutional premises. 2. Why should I adopt this method?
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.
Domestic Wastewater Treatment and Reuse
Mainstreaming decentralised wastewater recycling and reuse through research, policy advocacy and training. The objective is to build a movement across India and in South Asia for onsite wastewater management through networking and partnership with architects/planners, RWAs/institutions, local NGOs/CBOs, ULBs and parastatal agencies for implementation of model projects.
The 2009 Southwest monsoon has finally arrived in many parts of the country—with a vengeance in several places—leading to flash floods and loss of lives. With images of rain and news of reservoirs getting filled up pouring down TV sets, our macro-economists are seemingly clueless about the damage the delayed and deficient monsoon will cause. Agriculture plays a marginal role in the nation’s gdp numbers and so, even if the crops fail, it will not make a dent in the growth rate, they say.
How will India supply drinking water in cities? Many argue the problem is not inadequate water. The problem is the lack of investment in building infrastructure in cities and the lack of managerial capacities to operate the systems, once created. This line of thought then leads logically to policy reform, to invite private investment and hand over public water utilities to private parties to operate.
Every society must understand how the excreta it produces is managed. It teaches us many things about water, about waste, about technologies to clean, economics and politics: of who is subsidised to defecate in our societies. But, most importantly, it teaches us humility. We know so little about our own world. If we knew better, we would understand why we are failing to ensure our present and why we will all need to do things differently, if we want to safeguard our future.