METHOD FOR TREATING FORMALIN WASTE LIQUID AND AUTOMATIC TREATING DEVICE

PROBLEM TO BE SOLVED: To provide a method for treating a formalin waste liquid and an automatic treating device for a formalin waste liquid which can remove formaldehyde with high efficiency, which is excellent from the viewpoint of economy, workability and safeness, and which can be sufficiently us...

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Bibliographic Details
Main Authors SATO YUKIHIRO, HAYASHI HIDEYUKI, IMOTO TAIZO, OGAWA HIROSHI, MIYAUCHI SHUHEI, IWASAKI KAZUYA, YOBIKO YOSHIHIRO, SANO FUMIYOSHI, YAMAZAKI KIYOSHI
Format Patent
LanguageEnglish
Published 17.09.2002
Edition7
Subjects
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:PROBLEM TO BE SOLVED: To provide a method for treating a formalin waste liquid and an automatic treating device for a formalin waste liquid which can remove formaldehyde with high efficiency, which is excellent from the viewpoint of economy, workability and safeness, and which can be sufficiently used with a domestic power supply without requiring a large-size equipment. SOLUTION: The method for treating a formalin waste liquid is carried out by adding caustic soda by 6 g to 15 g to 100 ml of the formalin liquid controlled to at 40 deg.C to 80 deg.C to decompose formaldehyde, neutralizing the liquid with sulfuric acid or the like and then discharging the treated liquid.
Bibliography:Application Number: JP20010062617