REGENERATING METHOD AND MATERIAL FOR WASTE LIQUID OF ALKALI DEGREASING

PURPOSE:To regenerate waste liquid easily and inexpensively by immersing net-like bodies stuck with a cation type flocculating agent into waste liquid of alkali degreasing and blowing air thereinto. CONSTITUTION:Net-like bodies are formed by using fine wire rods. The net-like bodies are preferably o...

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Bibliographische Detailangaben
Hauptverfasser:	SAKAI UTAROU, MATSUDA YOSHITO, ABE KEIJI, TOMITA SHIGERU, TERAJIMA KAZUO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	PURPOSE:To regenerate waste liquid easily and inexpensively by immersing net-like bodies stuck with a cation type flocculating agent into waste liquid of alkali degreasing and blowing air thereinto. CONSTITUTION:Net-like bodies are formed by using fine wire rods. The net-like bodies are preferably of three-dimensional structure and are preferably knitted by techniques used for knitting stockings and sweaters. It is preferable to maintain the sizes of meshes in a 0.2-0.1mm. range and voids in a 90-98% range. A cation type flocculating agent is stuck on the surfaces of such net-like bodies. Here, the use of the polyacrylic amide of 500,000-5,000,000mol.wts. modified by cation is preferable. The regenerating material formed by sticking the cation type flocculating agent on the surfaces of the net-like bodies is immersed in the waste liquid of alkali degreasing and the gas is blown thereinto.