Spiral Wound Nanofiltration Membrane for Industrial Fine Purification and Concentration
Spiral wound nanofiltration membrane is a mainstream compact membrane element designed for industrial fine separation, featuring high filling density, stable interception precision and low energy consumption. It is specially applied in deep desalination, selective decolorization, impurity removal and low-temperature concentration of plant extracts, fermentation liquids and natural product solutions. Different from hollow fiber and tubular membranes, spiral wound nanofiltration realizes high-efficiency graded separation of small-molecule impurities and active ingredients through unique spiral flow channel design. With stable separation performance and easy industrial integration, it has become the preferred core equipment for high-precision refining of modern natural biological products.
Hollow Fiber Ultrafiltration Membrane for Industrial Liquid Clarification and Purification
Hollow fiber ultrafiltration membrane is a mainstream precision separation element with self-supporting microporous structure, featuring high packing density, large flux and low operating pressure. It is widely used for fine clarification, impurity removal and purification of plant extracts, traditional Chinese medicine liquid, fermentation broth and process water. Different from tubular and spiral membrane elements, hollow fiber membranes provide ultra-large filtration area in compact space, realizing high-efficiency physical filtration. With flexible backwashing and anti-fouling performance, hollow fiber ultrafiltration has become the most widely used core membrane equipment for industrial primary refining and water treatment.
# Membrane CIP Cleaning and Flux Restoration Technology for Industrial Membrane Systems
Long-term operation of ultrafiltration, nanofiltration, reverse osmosis and tubular membrane systems inevitably leads to membrane surface fouling caused by organic colloids, protein deposition, pigment adsorption and inorganic scaling, resulting in decreased water flux, increased operating pressure and unstable separation efficiency. Regular manual disassembly and cleaning have low efficiency and risk of membrane damage. The online CIP cleaning technology adopts proportional chemical dosing and circulating cleaning to rapidly remove organic dirt and inorganic scale under closed conditions. It effectively restores membrane permeability and stable flux, extends membrane service life, and ensures continuous and stable operation of industrial membrane separation systems.
