The Brihanmumbai Municipal Corporation (BMC) is planning to make eco-friendly move by implementing a new rule. This rule will make it compulsory for developers to have grey water recycling plants in all new constructions that have more than 60 units (i.e. 240 residents). If any residential projects that are spread on plots of over 2,000 square metres and do not have the facility, their work completion certificate will not be issued by the BMC.
Grey water is generated from domestic processes such as bathing, washing dishes and doing the laundry. Approximately five to seven litres of water is used each time a person flushes. Grey water forms 50 to 80 per cent of waste water from residential premises. As per the sources if grey water is treated by housing societies, water shortage will be solved, which will in turn reduce the water bill. The recycled water can be used for flushing, gardening purposes and etc.
Anil Diggikar, Additional municipal commissioner said that “Once the draft is ready, we will invite suggestions and objections from citizens and in couple of months, we will make it mandatory to install grey water treatment plants
This rule will also be applicable to existing societies, but the society should have more than 240 residents. The expense will have to be borne by the housing society itself,” he said.
“During times of crisis, the BMC may announce some incentives and tax benefits under this scheme. Presently, there are some societies that are praticising grey water recycling, including Hiranandani society in Powai. The effective use of grey water will also help reduce the load on municipal infrastructure, including water supply, wastewater treatment and solid waste management,” said a civic officer on condition of anonymity.