| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a wastewater treatment method which totally increases treatment capacity while using an existing septic tank treating wastewater discharged from facilities, such as shops and offices, and can install a septic tank even in the case that an installation space is limited, so as to cope with the space. <P>SOLUTION: In the wastewater treatment method for treating various kinds of wastewater discharged from different discharge sources in the septic tank, wastewater having a high organic matter concentration are introduced into a pretreatment device to reduce the concentration of organic matter and then made to flow into the septic tank to be treated therein, and wastewater other than the wastewater having a high organic matter concentration are made to directly flow into the septic tank to be treated therein. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
