Title:
WASTE LIQUID TREATMENT OF WET TYPE EXHAUSTED SMOKE DESULFURIZATION DENITRIFICATION EQUIPMENT
Document Type and Number:
Japanese Patent JPS52147573
Kind Code:
A
Abstract:
PURPOSE: To treat absorbed liquid in closed system and to operate at constant denitrification ratio for a long time by the process, in which a part of the filtrate is drawn out after gypsum recovery and carried to dust recovery cooler as well as Ca(OH)2 or CaCO3 is added to decompose and precipitate the metal salt (additive) in the filtrate and to use the salt circularly for absorbent.
Inventors:
KOUDA MASAYOSHI
Application Number:
JP6362176A
Publication Date:
December 08, 1977
Filing Date:
June 02, 1976
Export Citation:
Assignee:
ISHIKAWAJIMA HARIMA HEAVY IND
International Classes:
B01D53/60; B01D53/14; B01D53/34; B01D53/77; C01F11/46; C02F1/58; (IPC1-7): B01D53/14; B01D53/34; C01F11/46; C02C5/02
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