JPH01114100U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の実施例の断面図、第２図は
従来例の断面図である。 FIG. 1 is a sectional view of an embodiment of this invention, and FIG. 2 is a sectional view of a conventional example.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 汚水原水の流入される嫌気性処理室第１室と、
該嫌気性処理室第１室底より水面へと至る経路を
経て汚水が流入する脱窒素用嫌気性処理室と、該
嫌気性処理室より汚水が流入され、内底部に散気
管を設置した好気性処理室と、該好気性処理室よ
り移流した処理水内の浮遊物を沈澱させ上澄み液
を消毒した上で外部へ排出する沈澱消毒室とを備
えた汚水浄化槽において、前記脱窒素用嫌気性処
理室と前記好気性処理室とを仕切る壁の下底部に
両室への連通孔が設けられていると共に、上部水
線付近には好気性処理室内の散気管より排出され
る気泡による盛り上がり水線位置に好気性処理室
より脱窒素用嫌気性処理室へ汚水を返送する開口
部が設けられていることを特徴とする汚水浄化槽
。 A first anaerobic treatment room into which raw sewage water flows;
An anaerobic treatment chamber for denitrification into which wastewater flows from the bottom of the first chamber to the water surface; In a wastewater septic tank equipped with an aerobic treatment chamber and a sedimentation disinfection chamber in which floating matter in the treated water advected from the aerobic treatment chamber is precipitated and the supernatant liquid is disinfected and then discharged to the outside, the denitrification anaerobic A communication hole between the two chambers is provided at the bottom of the wall that partitions the treatment chamber and the aerobic treatment chamber, and water rises near the upper water line due to air bubbles discharged from the aeration pipe in the aerobic treatment chamber. A sewage septic tank characterized in that an opening is provided at a line position for returning sewage from an aerobic treatment chamber to an anaerobic treatment chamber for denitrification.