To clean water, desalination systems generally use hazardous chemicals. Pressure is used to filter seawater across a semipermeable membrane to create fresh drinking water in reverse osmosis desalination. Desalination can be done in a more energy-efficient manner with this procedure. However, bacteria and other microorganisms growing on the membrane's surface stifle its performance. Furthermore, the biofilm employed in the membrane system cannot be completely eliminated, resulting in permanent fouling, increased energy consumption, and harmful substances ending up in the water.
Membranes can last several years if they are properly pre-treated, maintained, and treated with the right RO chemicals. However, if any of these critical pieces fails, fast fouling and early failure might occur. Replacement of the membrane may be necessary, which is often very expensive. A wide range of reverse osmosis products is created to keep your RO plant functioning smoothly.
To slow the fouling process, osmosis anti-foulants and anti-scalant chemicals are used. Special membrane cleansers and biocides are used to restore performance when the membrane is damaged. A high range of high-performance reverse osmosis chemicals are based on advanced formulations and include RO membrane cleaners and detergents, scale inhibitors and anti-scalants, corrosion inhibitors, biocides, anti-foulants, de-chlorinators, and flocculants. RO chemical formulations should be developed specifically for the international membrane filtration and reverse osmosis markets and should offer several key performance benefits including cost, convenience, operational performance and environmental impact.
Eco friendly reverse osmosis chemicals are scientifically formulated to help optimise reverse osmosis recovery rates, improve the operational efficiency of RO plant installations and reduce problems associated with scaling and corrosion.
SSome of the eco-friendly chemicals used in RO water treatment processes to enhance the quality and standard functioning along with their usage is enlisted below:
Function |
Description |
|
---|---|---|
Antiscalant |
General purpose phosphonate scale inhibitor - most popular product that suits most water types |
|
Antiscalant |
Scale inhibitor for high silica feed water conditions |
|
Biocide / Preservative |
Isothiazioline Biocide |
|
Biocide |
DBNPA biocide |
|
Chlorine removal |
Easy to handle partially neutralised bisulphite solution for chlorine removal to protect membranes |
|
Chlorine removal |
40% sodium bisulphite solution for chlorine removal to protect membranes |
|
Membrane cleaner |
RO Sequestrant to remove calcium sulphate fouling |
|
Membrane cleaner |
RO Low foaming detergent for removing organic matter |
|
Acidic membrane cleaner |
Ammoniated citric acid cleaner for scale and iron removal |
|
Alkaline membrane cleaner |
Alkaline cleaning agent for removing fouling caused by organic, biological and colloidal foulants |
|
pH Booster |
Sodium Hydroxide pH builder, suitable for RO make-up water at low doses |