Water Treatment Process

Brief description of the principle: Groundwater is pumped to oxidation tower. With forced ventilation to evacuate CO₂raising the pH of the water and providing dissolved oxygen, Fe²⁺ and Mn²⁺ in the dissolved form will be oxidized to precipitate to Fe³⁺ and Mn⁴⁺ and will be removed in the clarifier. The water is continuing to be led through a rough sand filter for further removal of suspended solids before entering special filter including sand, activated carbon, and ODM material to remove odor, color and toxic substances through adsorption mechanism. In case of water with high hardness, it is necessary to have ion exchanger column to exchange Na⁺ ions in resin with Ca²⁺, Mg²⁺ ions in water. The water is then pumped to a fine filtration equipment with micro-filters to remove sediments larger than 5 μm. This microfiltration system operates as a safety step for the downstream RO filter system. The water continues to be pumped with high pressure through the RO membrane with high-pressure resistance and 0.1 – 1 nm gap. The layer is used to eliminate solids, ions, heavy metals, microorganisms, bacteria and organic substances that makes the water completely pure but do not change the physical and chemical properties of water.

Ground water treatment is applied in producing drinking water, process water for food processing, pharmaceutical, soft drink and beverage industries.