Title:
活性汚泥処理用固体液体混合物
Document Type and Number:
Japanese Patent JP3999299
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a solid-liquid mixture capable of decreasing excess sludge, reducing existing inert sludge by subjecting the existing inert sludge to activation decomposition, controlling sludge amount to make sludge uniform and clarifying waste water by increasing a dissolved oxygen in an aerator, promoting decomposition of an organic material and decreasing generated sludge. SOLUTION: Water is added to a mixture comprising 1-50wt.% sepiolite or igneous rock, 0.5-65wt.% citric acid, 0.5-5wt.% zeolite and 0.5-5wt.% zeolite powder to afford 100% composition and the composition is heated to extract an active ion or water is added to a mixture comprising 1-50wt.% sepiolite or igneous rock, 0.5-65wt.% organic acid containing carboxyl group excluding an aromatic, 1-25wt.% zeolite and 0.5-5wt.% zeolite powder to afford 100% composition and the composition is heated to extract an active ion.
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Inventors:
Keiji Nagashima
Application Number:
JP517397A
Publication Date:
October 31, 2007
Filing Date:
January 16, 1997
Export Citation:
Assignee:
Keiji Nagashima
International Classes:
C01B33/22; C02F3/12
Domestic Patent References:
| JP2778644B2 |
Attorney, Agent or Firm:
Akita Haruki