Excessive iron and manganese levels in groundwater are a widespread problem in Northwest China. Ferrous and manganese ions, dissolved in water over long periods, are invisible to the naked eye but pose a significant health risk. According to national standards, the iron content in drinking water should not exceed 0.3 mg/L, and the manganese content should not exceed 0.1 mg/L. Water exceeding these standards is strictly prohibited from direct consumption.
Long-term use of well water with excessive iron and manganese levels will not only turn the water yellow and give it a rusty taste, but it will also form stubborn scale on the inner walls of pipes, water heaters, and boilers. This scale will clog pipes, reduce the heat exchange efficiency of equipment, increase energy consumption, shorten equipment lifespan, and increase maintenance and replacement costs.

Manganese sand filtration equipment
Why ordinary water purifiers can't handle the iron and manganese in well water
Many users initially purchase ordinary water purifiers or simple filter canisters, only to find that the water remains yellow and the rusty taste cannot be removed. The reason is easy to understand: ordinary equipment can only filter silt and suspended solids, and is completely ineffective against ionic iron and manganese dissolved in water.
Some simple filtration devices or water softening devices on the market can only handle minor iron contamination. They are essentially useless when dealing with manganese contamination or severely contaminated well water. Their filter cartridges quickly become clogged and unusable, and the subsequent maintenance costs are actually higher. This is a superficial solution, not a fundamental one. Only manganese sand well water filtration equipment specifically removes excessive iron and manganese from well water, truly achieving thorough purification of well water quality.
The core technology of manganese sand well water filtration equipment:
Utilizing a dual process of "aeration oxidation + manganese sand filtration," the manganese sand well water filtration equipment was developed by Xi'an DIEN Water Treatment. This is currently the most stable, economical, and practical solution for removing iron and manganese from well water. It uses physical filtration throughout the entire process, without any chemical additives, making it safe and environmentally friendly.
The aeration system installed inside the equipment thoroughly oxidizes the ferrous and manganese ions in the well water, transforming them into insoluble ferric and manganese dioxide solid particles. These particles are then adsorbed by manganese sand filter media, completing the filtration process and fundamentally solving the problem of excessive iron and manganese levels.

Underground Well Water Filtration Equipment
Key Advantages Compared to Competitors
Our equipment, specifically designed for Northwest China, is optimized for well water quality. It has the ability to simultaneously remove different ions such as iron and manganese, and can also filter out numerous impurities including silt, rust, and insect eggs. The water produced by this equipment consistently meets the required standards, avoiding repeated exceedances, and completely eliminating problems such as yellowing, blackening, and rusty tastes in well water.
The tank is made of thickened, corrosion-resistant material, possessing pressure-resistant and corrosion-resistant properties, suitable for long-term high-pressure underground well water conditions. Manganese sand filter media boasts a long service life, eliminating the need for frequent replacements. Its performance is restored through regular backwashing (click to view: How to set the optimal backwashing time for well water filtration equipment), significantly reducing maintenance costs.
Fully automatic operation, suitable for both residential and commercial use.
Equipment specifications range from small residential units with an hourly output of 1 to 5 tons, to large industrial units with outputs reaching hundreds of tons, providing comprehensive coverage. Based on user well water quality testing data, combined with water consumption and site size, we customize solutions to meet individual needs, avoiding the problem of incompatible general-purpose equipment.
Does your well water have a yellowish or rusty taste? If you require well water iron and manganese testing, or have equipment selection or solution customization needs, please contact Xi'an DIEN Water Treatment for a customized filtration solution.