SLUDGE VOLUME REDUCING MICROBIAL MATERIAL AND EXCESS SLUDGE VOLUME REDUCING METHOD

PROBLEM TO BE SOLVED: To provide an excess sludge volume reducing method that can reduce the volume of excess sludge generated in a water treatment process by an activated-sludge method with high efficiency and which can be achieved at a low cost.SOLUTION: The excess sludge volume reduction is carri...

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Hauptverfasser:	SUGIMORI DAISUKE, MAKI TAKAAKI, YAMADA NAOKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF CULTURE MEDIA ENZYMOLOGY METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE VINEGAR WINE
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an excess sludge volume reducing method that can reduce the volume of excess sludge generated in a water treatment process by an activated-sludge method with high efficiency and which can be achieved at a low cost.SOLUTION: The excess sludge volume reduction is carried out by the addition of a sludge volume reducing microbial material comprising as the principal components Exiguobacterium sp. strain Z153-2 (accession number NITE P-02409) and/or Exiguobacterium acetylicum strain Z153-3 (accession number NITE P-02410) to activated sludge.SELECTED DRAWING: Figure 5 【課題】活性汚泥法による水処理過程で発生する余剰汚泥を高効率に減容化することができ且つ低コストに実現可能な余剰汚泥の減容化方法を提供する。【解決手段】活性汚泥にエキシグオバクテリウム・エスピー（Exiguobacteriumsp.)Z153-2株（受託番号NITE P-02409）若しくは、エキシグオバクテリウム・アセチリカム（Exiguobacterium acetylicum)Z153-3株（受託番号NITE P-02410）、又はその両方を主成分として含有する汚泥減容微生物資材を添加することにより余剰汚泥を減容化する。【選択図】図５