Plum Membrane Technology Co.,Ltd.
About
Plum Membrane Technology Co., Ltd. (Anhui Plum Membrane Technology), established in 2004 and based in Hefei, Anhui Province, China, develops and manufactures membrane separation systems for industrial wastewater zero liquid discharge and advanced fluid purification. With over 100 patents and 500+ projects delivered worldwide, Plum operates on an integrated technical platform built around three self-developed core technologies: PEK (Polyetherketone) tubular membranes resistant to acid, alkali, and oil with high flux and easy cleaning; selective nanofiltration for continuous UF and NF salt fractionation; and HRCC high-recovery continuous concentration reverse osmosis. The PEK tubular membrane line includes cross-flow MBR, air-lift MBR, and anaerobic MBR (AnMBR) configurations for biological treatment of challenging high-solids, high-oil, and high-salinity waste streams. Application-specific ZLD systems address cooling blowdown reuse, mine water treatment, FGD wastewater, coal chemical effluents, and landfill leachate — notably an all-NF process for leachate that eliminates the need for reverse osmosis. The food and biochemical division covers starch sugar clarification, allulose purification, HFCS purification, lactic acid decolorization, and botanical extract processing. Plum provides end-to-end delivery from laboratory validation through pilot testing to full-scale engineering, with reference installations including a 235 m3/h municipal reclaimed water project and a 50,000 ton/year lactic acid NF purification system.
Key Products
Polyetherketone tubular membranes resistant to acid, alkali, and oil with high flux and easy cleaning, designed for harsh industrial wastewater applications including oily waste streams and high-solids feeds.
Membrane bioreactor system using cross-flow tubular membrane configuration for biological wastewater treatment with high solids tolerance and stable permeate production.
Membrane bioreactor using air-lift flow dynamics to reduce energy consumption while maintaining membrane surface scouring and high treatment efficiency.
Anaerobic membrane bioreactor combining anaerobic digestion with tubular membrane separation for energy-positive wastewater treatment producing biogas while achieving high-quality effluent.
Tubular membrane system for total suspended solids removal from industrial process water and wastewater, producing clear permeate for reuse or discharge.
Pretreatment system using selective membrane filtration to remove hardness and silica from feed water, protecting downstream NF and RO membranes from scaling.
Membrane-based system for removing dissolved heavy metals from industrial wastewater streams, enabling compliance with discharge limits and metal recovery.
PEK tubular membrane system specifically engineered for harsh oily conditions, removing free and emulsified oils from industrial wastewater with high flux and minimal fouling.
Continuous UF and NF salt fractionation technology for selective separation of monovalent and divalent ions, enabling salt recovery and water reuse in ZLD applications.
High-recovery continuous concentration reverse osmosis technology achieving maximum water recovery and brine concentration for ZLD process trains.
Integrated membrane system treating cooling tower blowdown water for reuse, removing hardness, silica, and dissolved solids to enable zero liquid discharge.
Complete zero liquid discharge treatment system for mine drainage water using PEK tubular membrane pretreatment, NF salt fractionation, and HRCC RO concentration.
Zero liquid discharge system for flue gas desulfurization wastewater, handling high chloride and high scaling potential through membrane concentration and thermal crystallization.
All-nanofiltration process for landfill leachate treatment without requiring reverse osmosis, with integrated ammonia stripping for nitrogen removal.
Membrane-based system for extracting lithium from brine and ore sources using selective nanofiltration and concentration technology for battery material supply chains.
Membrane filtration systems for allulose purification, starch sugar clarification, HFCS purification, and dilute sugar recovery in food and beverage manufacturing.
Membrane-based system for removing color bodies and impurities from lactic acid production streams, enabling condensate recovery and product upgrading.
Bench-scale and pilot-scale membrane testing systems for process validation, flux testing, and treatability studies before full-scale implementation.
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