| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To develop an apparatus and a method for providing a highly recycled water generation technology fit for treatment of domestic wastewater from a combined type private sewage treatment system, a wastewater treatment facility, a sewage treatment facility, and the like. <P>SOLUTION: An advanced treatment apparatus for wastewater is made by adding an ozone treatment tank 3 as a tertiary treatment part to a wastewater treatment tank comprising an anaerobic filter bed tank 1 and an aerobic treatment tank. In the advanced treatment apparatus for wastewater, the inside of the anaerobic filter bed tank 1 is filled with a porous filter medium, which is an open-cell foam, and a pipe line for returning the treated water flowing out from the ozone treatment tank 3 to the anaerobic filter bed tank 1 is formed. The open-cell filter medium to be used is formed in the shape of a particular cylinder or plate, and fills the anaerobic filter bed tank regularly or irregularly. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
