Description
Manganese Greensand Filter Media Oman Muscat– 1 Cubic Foot Bag | UV Water Systems Oman
If your water treatment system requires reliable iron and hydrogen sulfide removal, our Manganese Greensand Oman Muscat stock provides the ideal filtration solution for both residential and commercial applications. Manganese Greensand is one of the most established and reliable filter media available for removing dissolved iron, manganese, and hydrogen sulphide (H₂S) from groundwater. First developed in the 1950s, it remains the preferred choice for applications where the feed water iron and manganese concentrations are high, or where hydrogen sulphide — recognisable by its characteristic rotten egg odour — is present alongside iron and manganese in Oman’s deeper well water. The manganese greensand media supplied by UV Water Systems in Muscat is manufactured from glauconite, a naturally occurring mineral with a green colour and a layered silicate structure that is coated with manganese dioxide during manufacturing to provide continuous catalytic oxidation capacity for iron and manganese removal.
How Manganese Greensand Works
Greensand operates through an oxidation-reduction mechanism. The MnO₂ coating on the glauconite grains oxidises dissolved ferrous iron (Fe²⁺) and manganous manganese (Mn²⁺) to their insoluble ferric (Fe³⁺) and manganic (Mn⁴⁺) forms, which are then trapped within the media bed and removed during backwash. Unlike Birm media, greensand can also be used in a “continuous regeneration” mode with small doses of potassium permanganate (KMnO₄) added to the feed water, which maintains the oxidising capacity of the MnO₂ coating for high iron and manganese concentrations. An intermittent regeneration mode uses batch KMnO₄ during backwash for lower concentration applications. The media also oxidises and traps hydrogen sulphide, eliminating the rotten egg odour common in some Oman well water sources.
Key Features and Benefits
- Handles high iron concentrations: Greensand with continuous KMnO₄ regeneration removes iron concentrations up to 15 mg/L and manganese up to 2 mg/L — higher than Birm can handle without aeration pre-treatment.
- H₂S removal capability: Oxidises dissolved hydrogen sulphide, eliminating the rotten egg odour from well water that affects Oman’s deeper aquifer sources — an issue Birm media cannot address.
- Operates at lower pH: Greensand functions at pH 6.2–8.5, slightly more forgiving than Birm at lower pH values when potassium permanganate is used as the oxidant.
- Dense media with high backwash efficiency: Greensand’s higher density (0.85 g/cm³ bulk density) means it settles quickly after backwash and provides an effective filtration bed without media loss through the backwash drain.
- Proven long-term reliability: Decades of operational data from water utilities worldwide confirm greensand service life of 10–15 years when properly operated and regenerated.
Technical Specifications
- Pack size: 1 cubic foot bag (~16 kg)
- Effective size: 0.3–0.35 mm
- Uniformity coefficient: ≤1.6
- Operating pH: 6.2–8.5
- Regenerant: Potassium permanganate (KMnO₄) 1–2% solution
- Service flow rate: 4.9–7.3 m/hour surface loading
Applications Across Oman
Manganese greensand filters are used in Oman’s agricultural, residential, and industrial applications where well water contains elevated iron, manganese, or H₂S. UV Water Systems designs complete greensand filter systems including potassium permanganate dosing units, backwash control valves, and vessels for clients throughout the Sultanate. We stock greensand media and regenerant chemicals in Muscat for prompt supply.
Frequently Asked Questions
What is the dosage of potassium permanganate for greensand regeneration? For continuous regeneration, KMnO₄ is dosed at 0.2–0.5 mg/L per mg/L of iron in the feed water. UV Water Systems calculates exact dose rates based on your feed water analysis and designs the KMnO₄ dosing system as part of the complete iron filter package.
How does greensand compare to Birm for iron removal? Birm is lower-cost and requires no chemical regenerant for moderate iron levels. Greensand handles higher iron concentrations and also removes H₂S. UV Water Systems will recommend the appropriate media based on your well water analysis — contact us for a free technical recommendation.
UV Water Systems is an ISO 9001:2015 certified water treatment company based in Muscat, Sultanate of Oman, with 14+ years of experience. We supply, install, and service water treatment solutions for residential, commercial, and industrial clients across Oman. Call +968 9763 7786 or visit www.uvwater.biz.
