China: Application of ZLD Technology Wastewater Treatment Technology for Chinese Coal-to-Chemical Plant

Editor: Alexander Stark

To help meet new regulations governing wastewater treatment at Chinese coal-to-chemical plants, a facility in Yulin City will install GE’s advanced zero liquid discharge (ZLD) technology.

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GE evaporator and crystallizer installation at the Hongdun wastewater treatment facility.
GE evaporator and crystallizer installation at the Hongdun wastewater treatment facility.
(Picture: General Electrics)

Yulin/China – Under China’s new regulations, including the Water Pollution Action Plan, the New Environmental Protection Law and China’s 13th Five-Year Plan, coal, and coal-fired power plants must eliminate the liquid discharge of wastewater into the environment and a ZLD system must be installed to obtain a permit for these plants.

GE’s ZLD evaporator and crystallizer system will eliminate liquid discharge of waste and enable water reuse at the Shaanxi Future Energy Chemical coal-to-chemical plant in Shaanxi Province, China. The facility is a coal-to-liquid project where Shaanxi Future Energy Chemical converts coal into a variety of oil products.

GE’s wastewater treatment system includes a vapor recompression brine concentrator followed by a crystallizer, providing a proven and cost-effective ZLD solution. The equipment is expected to be delivered in mid-2016, with commissioning in March 2017. Once operational, the Hong Dun Wastewater Treatment Facility will treat wastewater feed at a rate of 40 m3/hr.

“This project is the sixth of this kind in China for GE in recent years and builds on our reputation as a premier ZLD solution provider worldwide. It is indicative of China’s desire to use innovative methods, such as zero liquid discharge wastewater treatment technology, to expand the coal-to-chemical industry while minimizing environmental impact” said Kevin Cassidy, global leader, engineered systems – water and process technologies for GE Power.

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