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Manufacturer of STP, ETP, Industrial RO, Sewage treatment plant in noida, delhi call-9650608473
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Manufacturer of STP, ETP, Industrial RO, Sewage treatment plant in noida, delhi call-9650608473
Sewage treatment plant in noida,ETP, Industrial RO delhi call-9650608473

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  • 0120-2350053
  • 91+ 9650608473
  • 91+ 9650795306
sodium bisulfite dechlorination, sodium bisulfite in water treatment, sodium bisulfite uses

Need of pretreatment for RO Systems

Desalination, softening, and pollutant removal have long been accomplished using reverse osmosis (RO). These technologies are being applied to surface waters, wastewater, and ground waters as available ground water, fresh water, and "clean" water sources are depleted around the world. These types of source fluids contain significantly higher particle matter, organic compounds, and other materials, which may make ROmembrane processes incompatible. These systems are made, created, and built for the removal of "salt" and dissolved ions, not particle debris. As a result, adequate pretreatment is crucial to these systems' performance, life duration, and overall operating expenses.

Why Pretreatment require for RO Plants using Sodium bisulfate?

For bigger RO systems, sodium bisulfate [SBS] is the most common chlorine reducing agentwhich primarily interacts with free chlorine to convert it to the harmless chloride ion. SBS should not be catalyzed with cobalt. SBS solution has a pH of 4.6 at 1.0 percent (by weight) solution strength and is made by dissolving solid sodium metabisulfite into water. In order to make a 10% (by weight) SBS solution, 0.51 pounds of solid sodium metabisulfite must be added to one gallon of water. The sodium metabisulfite is commercially available in purity ranges from 97.5 to 99 percent and can be safely stored for up to six months in a dry environment.The most popular chlorine reduction agent for larger RO systems is sodium bisulfite [SBS].

Na2S2O5 (sodium metabisulfite) + H2O à2 NaHSO3 (sodium bisulfite)

NaHSO3 + HOClàNaHSO4 (sodium bisulfate) + HCl (hydrochloric acid)

NaHSO3 + Cl2 + H2O àNaHSO4 + 2 HCl

The drawbacks of SBS include the requirement to handle and mix a tiny volume of chemical and an increased danger of chlorine reaching the membranes if the de-chlorination system is not constructed with adequate monitoring and controls. Bisulfite acts as a nutrient and promotes the growth of Sulfur Reducing Bacteria [SBRs] in a few circumstances where they are present in the feed supply.

What can we offer?

Netsol Water is one of the leading water and wastewater treatment company in India with services in the field of WTP manufacturing, WWTP manufacturing, RO Plant manufacturing, STP manufacturing, ETP manufacturing, Water Softeners, and much more. The company designs and manufactures all in one system that are ideal for treating wastewater and the sludge generated.

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Netsol Water is a water and wastewater treatment company in Delhi NCR, India that designs, and manufactures ace machines to save the earth and its resources, especially water.

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