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  4. Removes iron, manganese, and ammonia without using chemicals Chemires (Nagaoka Co., Ltd.)
Removes iron, manganese, and ammonia without using chemicals Chemires-Chemiles
Removes iron, manganese, and ammonia without using chemicals Chemires-Nagaoka Co., Ltd.

Removes iron, manganese, and ammonia without using chemicals Chemires
Nagaoka Co., Ltd.

About This Product

■Chemiles can treat groundwater to drinking water standards without using chemicals.

The extracted groundwater may contain iron, manganese, and ammonia in excess of tap water quality standards. Therefore, for drinking purposes, it is necessary to treat the water to the specified drinking water standards, and conventional methods have been used to remove it using chemicals. Chemires is a safe and innovative water treatment device that can remove harmful substances without using chemicals.

■Iron Manganese Ammonia removal

It is possible to treat iron, manganese, and ammonia contained in groundwater without using chemicals. (Results: Iron 40mg/L Manganese: 4mg/L Ammonia: 6mg/L) Groundwater may contain iron, manganese, ammonia, etc. that exceeds tap water quality standards. Coagulation-sedimentation methods and rapid filtration methods that use chemicals are generally used, but chemicals must be managed and treatment is difficult when iron, manganese, or ammonia are contained in high concentrations. It is said that

■No chemicals used

・Special air mixture nozzle A special air mixture nozzle brings the dissolved oxygen concentration to a saturated state. This makes it easier to oxidize iron and manganese in the ionic state, and also promotes the nitrification reaction of ammonia. Because it uses the pressure of raw water, it is more economical and has a smaller environmental impact than regular aeration. ・Chemiless contact material A film is formed naturally and exhibits processing performance. After acclimatization is complete, there is no need to make adjustments even if the raw water fluctuates due to seasonal changes. Biological treatment is also used, and stable treatment performance can be demonstrated even in cold regions and winter.

■Easy maintenance and management

・No need for chemical management ・No need to replace contact material ・Fully automatic operation It is also suitable for operation at sites with a small number of staff, such as simple water supply facilities. Nagaoka's unique cleaning technology enables maintenance-free, fully automatic operation while maintaining a certain level of processing performance.

■Principle

・Aeration: A special air mixture nozzle brings the dissolved oxygen concentration in groundwater to a saturated state. ・Iron removal: Iron oxidized by contact oxidation coats the sand surface (ammonia removal) ・Manganese removal: Coated on the sand surface as manganese dioxide through catalytic oxidation, promoting oxidation through autocatalytic reaction (ammonia removal)

■Nagaoka's arsenic removal technology

・Significantly reduce initial costs ・Significantly reduces running costs ・Easy maintenance and management ・Significantly reduce waste amount

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    Removes iron, manganese, and ammonia without using chemicals Chemires

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Nagaoka Co., Ltd.

  • Japan

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