Hydrogen Peroxide Water Treatment
Hydrogen Peroxide (H₂O₂) in Water Treatment
Hydrogen peroxide is widely used in water treatment for its strong oxidizing and disinfecting properties. It helps remove contaminants, control odors, and improve overall water quality.
1. Key Uses of Hydrogen Peroxide in Water Treatment
A. Disinfection & Bacteria Control
- Kills bacteria, viruses, and algae by breaking down their cell structures.
- Used as an alternative to chlorine in some cases (e.g., for taste and odor improvement).
- Leaves no harmful chemical residues—decomposes into water (H₂O) and oxygen (O₂).
B. Oxidation of Contaminants
- Iron (Fe²⁺) & Manganese (Mn²⁺) Removal:
- H₂O₂ oxidizes iron and manganese into insoluble particles that can be filtered out.
- Hydrogen Sulfide (H₂S) Removal:
- Oxidizes H₂S, eliminating the “rotten egg” odor in water.
- Organic Pollutants & Color Removal:
- Breaks down tannins, phenols, and other organic matter in water.
C. Advanced Oxidation Processes (AOPs)
- When combined with UV light or ozone (O₃), hydrogen peroxide generates hydroxyl radicals (•OH), which are powerful oxidizers that destroy pharmaceuticals, pesticides, and industrial chemicals in water.
D. Wastewater Treatment
- Controls odor in sewage by oxidizing sulfur compound
- Aids in chemical oxygen demand (COD) reduction, improving wastewater quality before discharge.
2. Application Methods & Dosing
A. Drinking Water Treatment
- Typical doses: 1–10 mg/L, depending on contamination level.
- Applied before filtration to remove iron, manganese, and sulfides.
- Often combined with activated carbon to remove oxidation byproducts.
B. Industrial & Wastewater Treatment
- H₂S Removal: 5–50 mg/L of H₂O₂, depending on H₂S concentration.
- Organic Pollutant Oxidation: 10–100 mg/L in AOPs with UV or ozone.
- Bacterial Disinfection: 10–50 mg/L, often used in cooling towers and process water.
3. Advantages & Limitations
✅ Advantages
✔ Environmentally friendly—breaks down into water and oxygen.
✔ Fast reaction time—oxidizes contaminants quickly.
✔ No harmful disinfection byproducts (DBPs) compared to chlorine.
❌ Limitations
✖ Short-lived in water—needs continuous dosing.
✖ Can increase pH, requiring pH adjustment afterward.
✖ Not as effective as chlorine for long-term residual disinfection.
Contact Pat or Bob at Hepure for specification sheets.
Request More Information
Contact
West Sales & Technical Support
Pat Randall
866.727.4776 x1
pat.randall@hepure.com
East Sales & Technical Support
Bob Kelley, Ph.D.
866.727.4776 x2
bob.kelley@hepure.com