Membrane-Based Technology for Coal-to-Chemicals (CTX) - Mining - Coal Mining

Complex wastewater from chemical conversion: With recent technological advancements, coal can now be economically converted into liquid fuels such as gasoline and diesel, or other petrochemicals. The coal-to-chemical process consumes high volumes of water for cooling systems and a complex wastewater is produced in the liquefaction process.

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Multiple contaminants require treatment

CTX waste effluents typically contain salts, minerals, sulfides, chlorides, ammonia, oil & grease, and cyanides. Each of these needs to be substantially reduced to allow for recycle, reuse, or discharge of the treated effluent.

CTX Treatment Process

AquaZoom™ RO membrane modules can be integra...

AquaZoom™ RO membrane modules can be integrated into an overall CTX process train

Wastewater produced in the CTX process is characterized by large flow volumes with high organic loading, suspended solids, and dissolved inorganic impurities. This wastewater requires multiple treatment steps. ST+ and ST++ modules are excellent choices to drive concentration up and the cost of evaporation down.

Effluent Treatment Performance

Performance Estimate

Based on a typical CTX wastewater stream, we’ve estimated the permeate quality following a single stage of ST+ modules.

Performance in the Field

AquaZoom RO technology is installed in one site operating on CTX wastewater. This installation uses up to 200 of our ST++ modules. We are in the process of getting operating data for inclusion on our website.

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