What is the procedure for harsh RO membrane cleaning and can this method lower membranes weight?

26 April 2021 1 9K Report

we have some LG membranes that have gained too much weight (20-24 Kg). Can we lower their weight through harsh cleaning, and if so what are the appropriate temperature, pH and chemicals that we can use without damaging the membranes?

Zhao-Yu Ma

It is best to find out what are the main components of the contaminants before performing targeted chemical cleaning. The cleaning agent can be formulated based on the chemical tolerance of this type of RO membrane according to the "Operating Specifications" in Data Sheet provided by LG (https://www.lenntech.com/products/membrane/lg-chem.htm).

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