Filtration Mechanism Pressure driven Reverse Osmosis: Natural osmosis moves water from low concentration to high concentration side.

Reverse Osmosis applies external pressure to force water molecules from high concentration feed solution (seawater/tap water) towards the low concentration permeate side to produce purified water.

Selective separation: Polyamide composite layer on membrane surface is hydrophilic to permit fast water molecule passage while repelling inorganic ions.

Colloids and high molecular weight organics.multi-layer composite construction: Commercial RO membranes adopt three-layer composite structure: polyester nonwoven support layer.

Polysulfone microporous intermediate layer and ultrathin polyamide separation layer balancing mechanical strength and filtration performance.

Application Fields

1. Household Water Purifiers: Removes scale (calcium magnesium ions) heavy metals and microorganisms for direct drinking purified water.

Industrial & Municipal: Boiler feedwater softening electronics industry ultra pure water production food beverage water treatment and municipal wastewater reuse.

Seawater Desalination: Global mainstream seawater desalination technology salt rejection rate above 5% lower energy consumption than traditional distillation.

Pharmaceutical & Medical: Pharmaceutical grade water production biological agent separation & concentration to satisfy high purity & sterility requirements.

Selection & Maintenance Key performance indexes:.

Salt rejection Rate: Salt removal capability; premium grade membranes >99% rejection.

Permeate Flow Rate: Water output per unit time, selected according to real world water demand.

Fouling Resistance: Wastewater/heavily polluted feedwater requires antifouling or antioxidation coated membrane elements.

Service Life: Household elements: 1–3 years.

Industrial elements: 3–5 years, subject to raw water quality and operation maintenance practice.