Process and device for reducing the nitrate content of water

Details Process and device for reducing the nitrate content of water Process and device for reducing the nitrate content of water

1997-06-30

1999-02-16

Phasge, Arun S.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

2101981, 210258, 210259, 210748, 210757, 4221863, 250436, 250438, C07C 100, B01D 1500, C02F 900, B01J 1908

Patent

active

058716203

ABSTRACT:
To decrease the nitrate content of water, it is proposed to reduce nitrate to nitrogen in two stages. The first of these stages is a photochemical reduction to nitrite, and the second stage is a reduction of nitrite to nitrogen using amidosulphuric acid.

REFERENCES:
patent: 4857204 (1989-08-01), Joklik
patent: 5234606 (1993-08-01), Kazama et al.
patent: 5247178 (1993-09-01), Ury et al.
patent: 5393394 (1995-02-01), Ikeda et al.
patent: 5569810 (1996-10-01), Tsuji
Zhang et al., "Photodecomposition of Organic Nitrogen Compounds and Determination of Total Nitrogen in Water", Gaodeng Xuexiao Huaxue Xuebao, vol. 7, No. 4, pp. 325-330. Abstract only, 1986.

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