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Case study

25 m³/h Coal-Chemical Brine Salt-Separation Phase II Project

This phase II project treats 25 m³/h of coal-chemical RO brine. Ultrafiltration, nanofiltration salt separation, evaporation and crystallization are combined to process the resulting salt fractions.

Project scale
25 m³/h
Feed / process stream
Coal-chemical RO brine
Membrane sections
Ultrafiltration pretreatment → two-stage NF salt separation → evaporation and crystallization
Process equipment at the 25 m³/h Coal-Chemical Brine Salt-Separation Phase II Project

Project overview

This phase II project treats 25 m³/h of coal-chemical RO brine. Ultrafiltration, nanofiltration salt separation, evaporation and crystallization are combined to process the resulting salt fractions.

Plum supplied the complete process systems described for this project.

Process route

Ultrafiltration pretreatment → two-stage NF salt separation → evaporation and crystallization

Process roles

Ultrafiltration provides feed pretreatment for nanofiltration, which performs selective salt separation. Downstream evaporation and crystallization handle the separated fractions. This phase II project is recorded separately from the 60 m³/h brine and 4 m³/h mother-liquor project.