evaporation evapx

EVAPX®

Low Energy Evaporation and Crystallisation

Evaporation and Crystallisation Plant, Xinjiang, China

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Clean TeQ Water provided a 360 kL/day EVAPX® plant for reverse osmosis brine, using waste steam as a heat source for lower capital and operating costs.

Summary

Clean TeQ Water provided the engineering, procurement and construction of an evaporation and crystallisation plant in Xinjiang, China. It uses Clean TeQ Water’s EVAPX® technology and can process 15m3/h of feed water. The plant was finished in 2017 and put into operation at a coal to chemicals plant to achieve zero liquid dicharge (ZLD).

The plant removes calcium, chloride and COD from RO brine, and the distillate is reused as process water on site. Waste steam is used to power the EVAPX® plant which reduces the capital and operating costs.

Typical Water Quality for an EVAPX® Plant

Parameter Unit Feed Water Product Water
TDS ppm 75,000 < 500
Cl ppm 15,000 85
Ca ppm 150 50
COD ppm 1,400 < 30
NH3-N ppm 280 <1
pH - 6 - 9  

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