The Determinants of Selecting Reverse Osmosis Membrane Biocides
The structure of biofouling is relatively complex, and the biological mucosa formed by each cell supports the entire organism, including the dead cells, which are also the nutrients for the next generation of cells. During the trip, the water production of the bio-fouled membrane system decreased and the operating pressure increased. The desalination rate is reduced, which can seriously lead to the occurrence of "telescope" phenomenon and mechanical damage.
The reverse osmosis membrane bactericide mainly developed by our company is a non-oxidizing bactericide. Microorganisms such as bacteria, fungi and algae have strong killing and inhibitory effects.
Seven "reasons" for choosing reverse osmosis membrane fungicides; non-oxidative sterilization; fast killing; effective against both planktonic and sessile bacteria; low dosage; rapid degradation; similar active products have been certified by NSF (currently no other The non-oxidizing fungicides obtained NSF drinking water treatment certification); similar active products have been approved by the Ministry of Health of China (MOH);
In addition, the bactericides of the reverse osmosis system are divided into two types: oxidizing bactericides and non-oxidizing bactericides. Many companies have been routinely using oxidizing bactericides (sodium hypochlorite) in reverse osmosis pretreatment due to their immature knowledge of operation and maintenance. However, the oxidizing properties of the oxidizing biocides have irreversible effects on the reverse osmosis membrane.
Therefore, adding a reverse osmosis membrane bactericide to the system can effectively sterilize the reverse osmosis membrane with less contact time and prevent bacterial contamination.
