Process for biological denitrification of waters

Liquid purification or separation – Processes – Treatment by living organism

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210617, 210903, C02F 328

Patent

active

042539668

ABSTRACT:
Water is denitrified by passage through a porous bed of fired clay containing 1-5 parts per thousand of Mo, preferably added to the clay before firing in the form of Mo containing acid or an alkaline salt of such acid.

REFERENCES:
patent: 3829377 (1974-08-01), Hashimoato
patent: 4001362 (1977-01-01), Delmon et al.
patent: 4043936 (1977-08-01), Francis et al.
St. Amant et al., "Treatment of High Nitrate Waters," Journ. AWWA, vol. 61, Dec. 1969, pp. 659-662.

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