Comparison and analysis of the design calculation methods of septic tank at home and aboard

摘要

According to the relevant code standards and specifications for the septic tanks at home and aboard, the design and calculation methods of septic tank in USA, Australia, Ireland and China are compared. The results showed that the design volume in China is obviously less than that of the others, and the main reason lies in the difference in the aspects of the application environment and the management and maintenance of septic tank, and the delay update of codes and standards related to the septic tank design. Furthermore, the undersized volume will lead to the malfunction of septic tank.