Biologisches Abbauverfahren zur Aufbereitung von organischem Abwasser

摘要

A low concentration (0.1 to 0.5 mM) of aluminum ions is added to an organic waste water to selectively raise specific bacteria which can grow without producing unpleasant odors. The bacteria is used for treating the organic waste water of high density without producing odors thus contributing to the minimum size of a waste water treatment system. Then, increase of the aluminum ions to a high concentration (more than 4 mM) accelerates flocculation and precipitation of the bacteria for disposal. When a proper mineral is added to the waste water, a lower concentration (more than 1 mM) of the aluminum ions can encourage the flocculation and precipitation of the bacteria and also, a resultant sludge will be reduced in amount for ease of maintenance.