Cross‑Flow Membrane Concentration System for Liquid Concentration & Separation

Introduction

Traditional thermal concentration like multiple‑effect evaporator consumes huge steam and high operating cost. High‑temperature heating will destroy heat‑sensitive active substances in raw liquid, affecting product flavor and quality.

Cross‑flow membrane concentration system is a pressure‑driven physical separation solution. It completes concentration, clarification and impurity removal under room‑temperature or low‑temperature conditions. As shown on the picture, the full‑stainless‑steel modular membrane skid integrates membrane modules, high‑pressure pump, automatic valves and PLC control cabinet, ready for on‑site installation. It is widely adopted in fruit juice, fermentation broth, plant extract and biochemical liquid processing.

Working Principle of Membrane Concentration Equipment

Driven by pressure, raw liquid flows tangentially along the membrane surface (cross‑flow). Small‑molecule water and partial small solutes pass through the membrane as permeate. Target components such as sugar, active ingredients are trapped and circulated inside the system to achieve continuous concentration.

Different from dead‑end filtration, high‑speed tangential flow reduces membrane fouling. Automatic valve and CIP cleaning function guarantee stable long‑time industrial operation. No phase change happens during the whole concentration process.

Core Advantages

✅ Low‑temperature concentration: No boiling heating. Protect heat‑sensitive flavor, protein and active ingredients. Product quality is much better than thermal evaporation.

✅ Significant energy saving: Greatly reduce feed volume for follow‑up evaporator, cut steam consumption and overall production cost.

✅ Combined clarification & concentration: Remove macromolecular impurities like colloid, pectin and protein during concentration, simplify pre‑treatment workflow.

✅ Full stainless‑steel hygienic design: Food‑grade pipeline and membrane module, suitable for food, beverage and biochemical industries.

✅ Modular & automatic skid: Pre‑assembled unit with PLC control. Easy transport, installation and scale‑up for pilot to large‑scale production.

Main Application Fields

• Fruit & vegetable juice concentration (pear juice, apple juice, berry juice)

• Fermentation broth concentration and clarification

• Chinese herbal / plant extract concentration

• Bio‑chemical liquid concentration, impurity removal and purification

• Waste liquid resource recovery