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Evonik opens zero liquid discharge plant in India

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Evonik Catalysts has opened a new Zero Liquid Discharge (ZLD) plant at its facility in Dombivli, India.
The new plant reduces the amount of fresh water required for production processes and turns material that was previously considered waste into saleable products.
ZLD purifies and recycles wastewater at the end of an industrial process, leaving little to no effluent remaining when it is completed. This means not only more efficient water use, but also a significant reduction in waste liquid.
“Environmental excellence has always been a top priority for Evonik in India, and the ZLD plant at our catalysts site is a centrepiece in Evonik’s efforts to minimise its production-associated ecological footprint,” said Sanjeev Taneja, senior vice president and general manager, catalysts business line, at the inauguration of the plant.
“The efficient reuse of process water, and products extracted from it, is in line with our circular economy principles, and a key contribution to the sustainability targets of Evonik and our customers.”
Evonik is developing site-specific action plans as part of its global water management system.
The main ambition with the Dombivli ZLD plant is to improve the treatment of process water.
It goes through a multi-stage process and then the byproducts go through further processing.
An estimated 600 m3 of wastewater – the equivalent of between 25 and 30 tankers – enters the ZLD plant every day and the plant is expected to recirculate around 55% of that – approximately 300-350 m3.






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