Dams · DRP News Bulletin

DRP News Bulletin 19 February 2018 (How Are We Treating Our Urban Rivers?)

In this comprehensive article Mumbai-based author Vaishnavi Chandrashekhar throws the light on the plight of Uraban Rivers. “Rivers and streams have borne the brunt of the recent urban explosion in India, a nation whose population has nearly doubled in the last 40 years to 1.35 billion. Unplanned growth has led to the use of water bodies as dumping grounds for sewage and industrial effluent. According to CPCB, 63 % of the urban sewage flowing into rivers (some 62 billion liters a day) is untreated.

In addition, riverbanks, wetlands, and floodplains have been claimed over time by infrastructure, slums, offices, and housing developments – all of which has narrowed natural river channels and distorted flow, greatly reducing the ability of India’s rivers to buffer flooding. It also has taken a toll on biodiversity. http://e360.yale.edu/features/dying-waters-india-struggles-to-clean-up-its-polluted-urban-rivers (Yale Environment 360, 15 Feb. 2018) 

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Dams · Wetlands

East India Wetlands Review 2017: West Bengal Bent On Destroying World’s Largest Natural Sewage Treatment Plant

The East Kolkata Wetlands (EKW) are unique yet complex system of natural and human-made wetlands in West Bengal. The wetlands cover 125 sq km comprising of salt marshes, salt meadows, sewage farms and settling ponds. They are used to treat Kolkata’s sewage, and the nutrients contained in the waste water sustain fish farms and agriculture.

Devised by local fishermen and farmers, these wetlands served, in effect, as the largest natural sewage treatment plant (STP) for the city. And using the purification capacity of wetlands, Kolkata by transforming nearly one-third of the city’s sewage into a rich harvest of fish and fresh vegetables daily, has pioneered an environment-friendly system of sewage disposal. Because of this, the EKW were designated a “wetland of international importance” under the Ramsar Convention on August 19, 2002. https://en.wikipedia.org/wiki/East_Kolkata_Wetlands

However for past many years, these wetlands are under threat due to exponential expansion of real-estate projects. Recently illegal landfills are on the rise and unprecedented land development and urbanization have been creating concerns about the impact on EKW environment. 2017 has seen the situation turning only worse for EKW. 

Continue reading “East India Wetlands Review 2017: West Bengal Bent On Destroying World’s Largest Natural Sewage Treatment Plant”