Dynamic feature analysis to quantity and quality of typical septic tank wastewater

摘要

Water quantity and quality such as COD, ammonia nitrogen and phosphate concentration of two functional areas including residential district and administrative area were obtained through the continuous monitoring and analysis of septic tank effluent's water quality and quantity in administration building and teaching staff dormitory of Jinan University. The results showed that the average concentration of COD, ammonia and phosphate of residential district were 468.02mg/L, 95.43mg/L, 9.93mg/L, as well as 204.24mg/L, 41.11mg/L, and 4.18mg/L in administrative area, respectively. The wastewater quantity of residential district was more than that of administrative area, besides some water quality indexes including the concentration, and different functional areas showed obvious change characteristics. Considering the complementation of wastewater quantity of two functional areas in time, the septic tank wastewater of difficult area was advised to treat federatively, in order to regulate the quantity of wastewater, it also can stabilize the quality of wastewater, then provide the feasibility condition of the source control technology.