Inorganic Membrane Cleaning Solution (Acid)
As RO, NF, UF Membrane have been used for a period of time, there are contaminant (particle & mineral scale) which will form fouling in membrane. Membrane fouling will cause failure for purified system. In this case, it needs to use organic (alkaline PHS-106) cleaning detergent & inorganic (acid PHS-104) cleaning detergent to clean the surface of RO membrane.
PHS-104 its major component is a weak acid, and kind of organic acid. It is specially used to remove iron blockages and slight calcium carbonate scale forming on the membrane. Generally, before using weak acid type membrane cleaning detergent, please confirm all of the organic material in membrane tube has been removed.
Antiscalant is a pretreatment water additive for reverse osmosis system that is highly effective in preventing the membranes from scaling. Before the feed water enters the reverse osmosis membrane, an antiscalant is injected into the water and sent the through the system. The chemicals creates a time delay between the bicarbonate and the calcium magnesium. The delay allows the water to pass through the membrane before any chemical reaction, in which scale can form, occurs.