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‘Industrial effluents being dumped into domestic wastewater’

Industrial effluents generated in Ahmedabad and Surat cities are channeled into domestic wastewater networks and natural streams,which complicates and exerts pressure on the existing wastewater treatment infrastructure,according to a report on the four largest cities of Gujarat.

Written by Express News Service | Ahmedabad | Published: July 27, 2012 5:06 am

Industrial effluents generated in Ahmedabad and Surat cities are channeled into domestic wastewater networks and natural streams,which complicates and exerts pressure on the existing wastewater treatment infrastructure,according to a report on the four largest cities of Gujarat.

“In Ahmedabad,industrial effluents are channeled into the domestic system,complicating the process and exerting pressure on the existing infrastructure. The presence of industries within residential areas has a negative effect on wastewater quality,” says a report prepared under the leadership of Geneva-based World Business Council for Sustainable Development (WBCSD).

The report,‘A solutions landscape for Gujarat cities’,prepared for Ahmedabad,Surat,Rajkot and Vadodara was handed over by the WBCSD to officials of the Gujarat government and municipal corporations at a function today.

“In Surat,groundwater is a major resource for industries. Although it has higher levels of salinity,industrial processes use this water and release effluents into the domestic wastewater networks and natural streams. The existing systems are unable to handle this complexity of salinity and chemicals in this effluents. The quality of treated water generated is unusable and negatively impacts the environment on disposal,” adds the report while recommending to “restrict the access to potable water and divert industrial demand to treated water”.

Ahmedabad and Vadodara have higher volumes of domestic wastewater than industrial effluents,whereas Surat generates higher quantities of industrial wastewater. “In Rajkot,salinity,impermeability,and prevailing climatic conditions impede effective wastewater treatment,” says the report.

Gujarat Pollution Control Board (GPCB) officials said that incidences of industrial effluents being channeled into the sewage treatment systems happens in “some pockets of the state”. “It happens in Vadodara,for example,and in some pockets of Ahmedabad such as Behrampura and Danilimda. The percentage of industrial effluents to sewage,however,hardly reaches one-fifth or so of the total wastewater,” said a GPCB official.

A Gujarat Urban Development Corporation official said a major portion of the effluent treatment system was involved in “shifting the pollution from land to sea”.

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