evaporation evapx


Low Energy Evaporation and Crystallisation

Evaporation and Crystallisation Plant, China

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Clean TeQ Water provided a 240 ton/day EVAPX plant in China to treat water and crystallise a solid salt product.


The customer is a national designated salt production enterprise in China, with salt production capacity of 1.2 million tons/year and multi-species salts capacity of 50,000 tons/year. The customer further started construction of a 150,000 tons/year capacity double glyphosate production in February 2010, with a total investment of 1.5 billion RMB. The turnover exceeds 2 billion yuan. The wastewater to the EVAPX® unit originates from the pesticide production process. The EVAPX® unit crystallises a solid salt product and creates a distillate which can be reused in the plant.

Typical Water Quality for an EVAPX® Plant

Parameter Unit Feed Water Product Water
TDS ppm >250,000 <100
COD ppm 35,000 10,000
BOD ppm 6,000 – 8,000 4,000
pH - 4 6 – 8
Formaldehyde % 3 3


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