DECOLORING PROCESS FOR COLORED LIQUID

Japanese Patent JP3861129

B2

PURPOSE: To decolor the colored liquid efficiently by adding culture solution prepared by culturing microbes which belong to the pseudo-monas group and provided with productive power of a substance with flocculating power to the culture liquid such as dyeing drainage.
CONSTITUTION: When colored solution which is the dyeing drainage generated in the dyeing process and its dystuff density is in the range of 0.01-50g/L is decolored, culture solution prepared by coloring microbes with productive power for a substance which belong to the pseudomonas group microbes with productive power for a substance and provided with flocculating power or its treated material is added to the colored liquid. A colored substance is flocculated by adding the above culture solution or its treated material, and decoloring is carried out by flocculating the colored substance and separating and removing flocculated sections. At the time of decoloring, in addition to the above culture solution or its treated material, calcium chloride or magnesium chloride is used, by which effective decoloring is achieved.

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Ryuichiro Kurane
Nobuo Tomizawa
Naoto Ogawa
Takao Yamamoto

JP7182893A

December 20, 2006

March 30, 1993

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National Institute of Advanced Industrial Science and Technology

B01D21/01; C02F3/32; C02F1/54; C02F1/58; C12N1/20; C12S99/00; C12R1/38; (IPC1-7): C02F3/32; B01D21/01; C02F1/54; C02F1/58; C12N1/20; C12S13/00; //(C12S13/00; C12R1:38)

JP6142665A

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