FILTERING TREATMENT METHOD OF WASHING WASTE WATER

PROBLEM TO BE SOLVED: To eliminate the generation of a chemical waste soln. requiring secondary treatment, and to extend the filtering time up to the generation of clogging even if a ceramic film filter is utilized. SOLUTION: In a filtering treatment method of washing waste water by mixing a granula...

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Bibliographische Detailangaben
1. Verfasser:	OBATA MASAMICHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Zusammenfassung:	PROBLEM TO BE SOLVED: To eliminate the generation of a chemical waste soln. requiring secondary treatment, and to extend the filtering time up to the generation of clogging even if a ceramic film filter is utilized. SOLUTION: In a filtering treatment method of washing waste water by mixing a granular ceramic powder with washing water and filtering the resulting mixture by a ceramic membrane filter, it is pref. to set the mean particle size of the ceramic powder by a ceramic film filter to 10 or more times of the mean pore size of the ceramic membrane filter and it is pref. to use titanium oxide as the ceramic powder.