Case Sharing
By choosing Pulang Membrane Technology, you will receive innovative, reliable, and customized membrane technology solutions. With our technical strength, unique system design, and rich industry experience, we are committed to providing customers with high-quality service and significant value enhancement.
Inner Mongolia Chemical Plant: 235 m³/h Municipal Reclaimed Water; 106 m³/h Phase-I RO Brine Softening
Project Overview
Designed for both reclaimed-water reuse and RO-brine ZLD in a coal-chemical park. Front-end softening plus PEK tubular membranes removes hardness and silica, reducing scaling risk and energy demand in downstream NF/RO and evaporation–crystallization. The system has operated stably long-term; by-product salt meets GB/T 5462-2015 Grade-1 refined industrial salt (dry) and T/CCT 002-2019 Grade-1 industrial dry salt.
Technical Specifications
Wastewater: Municipal reclaimed water; RO brine
Capacity: 235 m³/h (reclaimed), 106 m³/h (brine, phase I)
Process: Softening → PEK tubular membrane
Typical feed: SS 300 mg/L; hardness 200–500 mg/L; total silica (as SiO₂) 50–70 mg/L
Permeate: SS ≤ 1 mg/L; hardness ≤ 50 mg/L; total silica ≤ 10 mg/L
Operating flux: 150–200 LMH
Commissioned: 2020
Main Business
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