TheWay vs Koch Membrane Systems: Full Comparison
- Theway Scholar

- Apr 11
- 2 min read
Koch Membrane Systems (KMS), now part of Koch Separation Solutions, is a well-established player in industrial membrane filtration with particular strength in the food and beverage, pharmaceutical, and industrial process sectors. This comparison examines how TheWay Membranes stacks up against Koch for MBR and UF applications in industrial and municipal wastewater treatment.
Koch Membrane Systems Overview
Koch Membrane Systems, part of Koch Industries (one of the largest private companies in the world), manufactures a wide range of membrane products including tubular, hollow fiber, and spiral-wound configurations. Their PURON submerged membrane system is their primary MBR product, using hollow fiber membranes in a unique single-header design. Koch is particularly strong in industrial process applications including dairy, juice, wine, and chemical processing.
TheWay Membranes focuses exclusively on PVDF hollow fiber membranes for UF and MBR applications, with particular expertise in wastewater treatment. This focused approach delivers optimized membrane products for water and wastewater applications without the overhead of maintaining multiple membrane platforms for diverse process industries.
MBR Technology: PURON vs TW Series
Koch's PURON system features a distinctive single-header design where hollow fibers are fixed at the bottom only, hanging freely at the top. This design aims to reduce clogging by allowing fibers to move freely during air scouring. TheWay's TW series uses a dual-header design (fibers fixed at top and bottom) which is the industry standard configuration used by most major MBR manufacturers. Both approaches have their merits, but the dual-header design has a longer track record and broader acceptance in the market.
Both systems use PVDF membranes with nominal pore sizes in the UF range. Flux rates, rejection performance, and permeate quality are comparable between the two products when properly designed and operated. The fundamental membrane separation performance is equivalent — the differences lie in module design, cost structure, and support services.
Cost Comparison and Spare Parts
Koch Membrane Systems, backed by Koch Industries' massive industrial infrastructure, prices their products at premium levels. Their distribution and service model includes authorized representatives and system integrators, each adding their margin. TheWay Membranes provides direct-from-manufacturer pricing with transparent cost structures, typically 30-45% below Koch's pricing for equivalent membrane area and performance.
Spare parts and replacement membranes are another area where TheWay offers significant advantages. Koch's proprietary PURON design limits replacement options to Koch-only components. TheWay's standard-dimension modules are designed for broad compatibility, and replacement modules are available with shorter lead times and lower costs.
When to Choose Each Manufacturer
Koch Membrane Systems is a strong choice for industrial process applications (dairy, beverage, chemical processing) where their diverse product range and process expertise add value. For MBR wastewater treatment applications, however, TheWay Membranes offers a more cost-effective solution with equivalent performance. TheWay's focus on UF and MBR means their engineering team understands wastewater treatment at a deep level, providing better application-specific support than a generalist membrane manufacturer.
Get a detailed technical and commercial comparison for your specific project by contacting TheWay Membranes at info@thewaymembranes.com. Their engineering team can provide a comprehensive proposal showing how TheWay membranes can deliver the same treatment performance as Koch at a significantly lower total cost of ownership.

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