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ZuhauseReverse Osmosis Chemical Selection Guide

Reverse Osmosis Chemical Selection Guide

Reverse Osmosis Chemical Selection Guide

How to Choose Reverse Osmosis Chemicals

Reverse osmosis chemicals are chemical agents used in reverse osmosis water treatment systems to prevent membrane fouling and blockage, thereby improving the efficiency and lifespan of the reverse osmosis system.

Table 1: Reverse Osmosis Chemical Selection Guide
Membrane Issues	Contamination Types	Selecting Chemicals
Bacterial microorganisms grow and adhere to the membrane surface, forming biofilms	Biofouling	Reverse Osmosis Biocide
Calcium and magnesium ions at the end of the equipment reach supersaturation and precipitate on the membrane surface	Chemical scaling	Reverse Osmosis Antiscalant
Substances such as sludge, fine sand particles, corrosion products of iron, inorganic and organic colloids, adhere to the membrane surface	Suspension and colloidal fouling	Reverse Osmosis Flocculant and Reverse Osmosis Biocide
Residual chlorine has an oxidizing effect on RO membranes, causing a decrease in desalination rate. Approximately 1 mg/l of residual chlorine can degrade the membrane elements in 200-1000 hours.	Membrane oxidation	Reverse Osmosis Reductant
Membrane cleaning requires the use of multiple chemicals or multiple steps, which is time-consuming and can easily damage the membrane. The cleaning agent has a single effect and is difficult to thoroughly clean various organic and inorganic substances, resulting in premature replacement of the membrane.	Improper cleaning leads to membrane damage	Use multi-effect cleaning products and follow professional guidance