• For Enquiry- 0120-2350053 || +91 9650608473 || +91 9650795306
  • enquiry@netsolwater.com
Manufacturer of STP, ETP, Industrial RO, Sewage treatment plant in noida, delhi call-9650608473
  • Home
  • About Us
  • Products
  • Knowledge Center
  • Clients
    • Faq
    • Our Clients
    • Gallery
    • Testimonials
  • Resources
    • News
  • Contact
  • Get a quote!
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

Contact Info

  • 0120-2350053
  • 91+ 9650608473
  • 91+ 9650795306
how much sodium metabisulfite to remove chlorine, how does chlorine damage ro membranes, disadvantages of chlorine in water

How does Sodium bisulfite reduce Chlorine in Commercial RO plants?

Reverse osmosis (RO) is now one of the most extensively used water purification processes in both the public and private sectors.

RO plants are manufactured for both large and small communities, and they are also widely used in the commercial sector, such as the food and beverage industry. Netsol Water ensures that they work smoothly because of their role in the commercial sector and in protecting public health. Many plant owners and operators still assume that normal maintenance is sufficient to keep their plants in a good working order. On the other hand, Commercial RO plant manufacturers urge for a proper pretreatment system. We routinely deal with extremely unclean water that requires extra care before usage. The stress on the RO membrane, which is the most valuable and susceptible, is reduced by pretreatment.

Pretreatment concerns

The major difficulty with today's polyamide thin-film RO membranes is the removal or annihilation of any chlorine or other potentially oxidative chemicals. Free chlorine (found in many municipal water sources) has a low tolerance for this membrane, while chloramines have a low tolerance (in other municipal water sources).Reducing-agent injection and activated carbon filtration are the most prevalent ways for breaking down chlorine.

Sodium bisulfite (NaHSO3) is the most common reducing agent, as it preferentially interacts with free chlorine to convert it to the harmless chloride ion.

Sodium bisulfate as reducing agent of chlorine in RO Plants

For bigger RO systems, sodium bisulfite [SBS] is the most common chlorine reducing agent. Free chlorine is reduced to sodium bisulfite and hydrochloric acid by sodium bisulfite.

SBS is a reduction-capable chemical molecule with the molecular formula NaHSO3. As a result, it's employed in water/wastewater and industrial applications to eliminate residual chlorine. It's also utilized in boiler water treatment as an oxygen scavenger. It is a preservative used in the food sector. The 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.Because the SBS solution is unstable in the presence of air and reacts with both oxygen and chlorine, batches of less than 2% by weight should be used within 3 to 7 days, and batch solutions of less than 10% should be used within 7 to 14 days.

SBS Concentration in RO Plants

To add an industrial safety factor for brackish water RO systems, designers have been known to employ a dosage rate of 1.8 to 3.0 ppm SBS per 1.0 ppm chlorine. SBS must be injected far enough upstream of the RO elements to ensure a response time of at least 20 seconds.

Na2S2O5 (sodium metabisulfite) + H2O 2NaHSO3 (sodium bisulfite)

NaHSO3 + HOClNaHSO4 (sodium bisulfate) + HCl (hydrochloric acid)

NaHSO3 + Cl2 + H2O NaHSO4 + 2 HCl

SBS de-chlorinating has several advantages over carbon filters, including cheaper capital costs for large systems, elimination of reaction by-products by the RO, and removal of residual SBS by the RO.

What can we offer?

Netsol Water is one of India's major water treatment company, with a purpose to make water management systems more cheap, sustainable, and energy-efficient in order to meet the problems of population increase, industrial expansion, and climate change.

For any advice or assistance on selecting the best water and wastewater treatment unit,

Call us on +91-965-060-8473;

Or, write us at enquiry@netsolwater.com

Enquire Now

Related Blog List

  • How is green tea beneficial for your overall health
  • What are the instruments used in the treatment of wastewater
  • How many times a water softener is regenerated in a month
  • What are the application areas of electrocoagulation
  • Manufacturers of commercial RO systems in Chennai
  • View All Blogs

Popular Products

  • Sewage Treatment Plant
  • Sewage Treatment Plant Manufacturer
  • Effluent Treatment Plant
  • Effluent Treatment Plant Manufacturer
  • Industrial RO Plant
  • Commercial RO Plant Manufacturer
  • Water Treatment Solutions
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.

About Us

  • Why Choose Us
  • Disclaimer
  • Terms and conditions
  • Sitemap
  • Contact us

Resources

  • News
  • Knowledge Center
  • Gallery
  • Manufacturing: Plot No.- 217,Udyog Kendra-2, Ecotech-3,Greater Noida, Uttar Pradesh, India

Contact us

  • J-176, SECTOR-41, NOIDA, Gautam Buddha Nagar, Uttar Pradesh,India, 201301(Reg.)
  • Call Us: +91 9650608473/9650795306
  • Email: info@netsolwater.com
COPYRIGHT © 2022 NETSOL WATER SOLUTIONS PVT. LTD. - WATER TREATMENT COMPANY DELHI/NCR. ALL RIGHTS RESERVED.
ASR Search EngineaWeb Llist .org Addurl.nuPicktu Directory