Potassium and Sodium Permanganate Water Treatment
Permanganate Water Treatment
Sodium and Potassium permanganate (NaMnO4, KMnO₄) are widely used in water treatment for its strong oxidizing properties, helping to remove contaminants and improve water quality. Sodium permanganate is a 40% liquid solution, potassium permanganate is a 98% solid.
1. Oxidation of Contaminants
- Iron (Fe²⁺) & Manganese (Mn²⁺) Removal:
- Oxidizes soluble iron and manganese into insoluble particles, which can then be filtered out.
- Hydrogen Sulfide (H₂S) Removal:
- Reacts with hydrogen sulfide to eliminate its characteristic “rotten egg” smell.
- Organic Matter & Color Reduction:
- Breaks down organic compounds, reducing color and improving taste.
- Algae & Biofilm Control:
- Helps control algae growth in reservoirs and water systems.
- Disinfection Aid:
- Can help reduce bacterial growth, but it is not a standalone disinfectant like chlorine.
2. Application Methods
- Pre-Treatment in Water Plants:
- Added before filtration to oxidize iron, manganese, and sulfides.
- Well Water Treatment:
- Used in conjunction with filtration to remove natural contaminants.
- Wastewater Treatment:
- Helps control odors and break down pollutants before discharge.
3. Considerations & Safety
- Proper Dosing is Essential: Overdosing can lead to pink or purple water due to residual permanganate.
- Residuals Must Be Removed: Requires filtration to remove oxidized particles.
- Handling Precautions: A strong oxidizer that can stain and be harmful in high concentrations.
4. Advantages & Limitations
✅ Advantages
✔ Effective over a wide range of contaminates VOSs, Organic Compounds, Metals.
✔ Non-toxic & environmentally friendly, no residual or breakdown products
✔ Effective for in-situ remediation of groundwater without costly excavation.
❌ Limitations
✖ Must contact contaminate contaminant must contact permanganate.
✖ Possible formation of breakdown products some compounds are not fully oxidized .
✖ Not effective against all pollutants (PFAS, salts, minerals, or dissolved inorganic compounds).
Contact Pat or Bob at Hepure for specification sheets.
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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