When a distributor commits to a membrane brand, the decision rarely hinges on a single datasheet. It rests on whether the manufacturer can supply a coherent portfolio — ultrafiltration for pretreatment, MBR modules for biological treatment, and specialty membranes for demanding industrial streams — from one qualified source. Hangzhou Maina Membrane Technology Co., Ltd, based in Zhejiang Province, China, has built its business on exactly that premise: hollow fiber membrane research, module fabrication and complete membrane separation equipment, produced and supported by one technical team.
A Hollow Fiber Portfolio Matched to Water Chemistry
Maina's core strength lies in hollow fiber membranes, and the range is deliberately structured so that buyers can match membrane chemistry to the feed stream rather than forcing one product into every duty.
Hydrophilic PVDF ultrafiltration membranes. Polyvinylidene fluoride is valued for chemical resistance and mechanical toughness. Maina's high-fouling-resistance hydrophilic PVDF UF membranes are engineered around the practical problem every plant eventually faces: fouling. A hydrophilic surface encourages water to wet the pore structure rather than allowing organic matter to cling to it, which supports more stable flux between cleaning cycles and helps extend membrane life in surface water, groundwater and secondary effluent duties.
Surface-modified PP ultrafiltration membranes. Polypropylene offers a cost-effective alternative where chemical compatibility and budget both matter. Through surface modification, Maina improves the wettability and fouling behaviour of PP fibers, making this line a sensible choice for bulk water pretreatment, clarification and applications where a robust, economical membrane is preferred for high-volume installations.
PVDF anti-fouling MBR membranes. For membrane bioreactor systems, Maina supplies PVDF MBR modules designed for sustained operation in high mixed-liquor-suspended-solids environments, where the membrane must tolerate biological solids, backwash cycles and chemical cleaning.
PP high-strength MBR membranes. Where mechanical integrity and cost efficiency are priorities, Maina's PP high-strength MBR modules give system integrators a practical option for municipal and industrial wastewater treatment trains.
Specialty Membranes for Industrial Process Streams
Beyond water treatment, Maina produces membranes for two demanding process niches. Electrophoresis paint ultrafiltration membranes are used in electrocoat lines to recover paint solids from rinse water and control bath chemistry — a closed-loop application where membrane stability directly affects both coating quality and material consumption. Degasification membranes support the removal of dissolved gases from liquids in process and high-purity water circuits.
From Modules to Complete Separation, Clarification and Concentration Plants
A module is only part of a working system. Maina's scope of supply covers membrane modules together with the engineering, installation and commissioning of water treatment projects, membrane-based material separation, clarification and concentration equipment. For distributors and EPC contractors, this means one supplier can be involved from the membrane element through to the skid — reducing the coordination burden when a project moves from tender to commissioning. The company operates as an integrated research, production and sales enterprise on a 4,000 square meter manufacturing site in the Qingshan Lake Intelligent Manufacturing Industrial Base in Hangzhou.
Technical Depth Backed by University Collaboration
Maina works closely with Zhejiang University on membrane research and product development, an association that has supported the introduction of multiple hollow fiber membrane types into the company's catalogue. The company holds independent intellectual property rights and a number of invention patents, and is a member of the China Membrane Industry Association. It has been recognised as a Hangzhou High-Tech Enterprise and has received quality, service and reputation accreditation from Chinese industry bodies — credentials that give overseas buyers a verifiable starting point for due diligence.
The team itself is composed of water treatment and membrane application specialists with practical experience across plant design, commissioning and troubleshooting. Within the company, the stated operating principles are responsibility, integrity, quality and innovation, with a declared ambition to be a specialist in customised water treatment solutions rather than a catalogue supplier of generic elements.
Where These Membranes Are Specified
- Municipal and industrial wastewater treatment, including membrane bioreactor trains
- Surface water, groundwater and secondary effluent polishing with ultrafiltration
- Electrocoat paint recovery and rinse-water recycling in metal finishing and automotive supply chains
- Membrane-based separation, clarification and concentration of process liquids
- Dissolved gas removal in process water and high-purity water circuits
An Industry View: Fouling Is the Real Cost Driver
Across the membrane market, buyers increasingly compare products on total operating economics rather than purchase price. Fouling and chemical cleaning consume labour, chemicals and energy, and they shorten replacement intervals. Two practical responses dominate: controlling pretreatment so that the membrane sees a predictable feed, and selecting membranes whose surface chemistry resists fouling in the first place. Maina's emphasis on hydrophilic PVDF and surface-modified PP addresses the second lever directly; its project experience in complete separation and clarification systems addresses the first.
For distributors, another factor matters just as much: consistency of supply and continuity of technical dialogue. A supplier who can discuss feed-water analysis, module configuration, cleaning regimes and system layout in the same conversation as commercial terms saves months of project friction — particularly when specifications must satisfy an end user's consulting engineer.
Working With Maina as an Overseas Partner
International buyers and distributors are invited to bring their application details — feed source, target water quality, flow rate, footprints and cleaning constraints — to a direct technical discussion. Maina's team can respond to specification questions for individual modules as well as complete membrane separation and concentration systems, and can support partners in evaluating which membrane chemistry best fits a given duty.
Contact
Company: Hangzhou Maina Membrane Technology Co., Ltd
Contact: Cheng Zhe
Address: 1704, Building 9, Lin'an Intelligent Manufacturing Industrial Base, Hangzhou City, Zhejiang Province, China
Phone / WhatsApp / Skype: 15038088508
Email: C15038088508@hotmail.com
Website: www.mainamem.com
Send your membrane specification or project outline today and let Maina's technical team recommend the appropriate hollow fiber ultrafiltration or MBR module for your next installation.