珠江三角洲地区城镇生活污染源调查及其排污总量核算

 综合运用资料收集、典型调查、补充监测与系数核算相结合的方法,针对珠江三角洲地区城镇生活污染源(58座城镇污水处理厂和770个入河(海)排污口)开展了污染源调查与排污总量核算研究.核算结果显示,研究区域内8个城市城镇生活污染源的污水产生量为39.64亿t,主要污染物产生量分别为CODCr90.79万t/a、BOD543.53万t/a、氨氮10.32万t/a、总氮13.55万t/a、总磷1.42万t/a;排放量分别为CODCr62.58万t/a、BOD531.89万t/a、氨氮7.32万t/a、总氮10.26万t/a、总磷0.998万t/a.从排放去向上看,直排近岸海域的污水量占16.9%;排入西江、北江及其汇合后形成的三角洲网河的污水量占43.2%;排入东江水系的污水量为占27.1%.

Investigation and accounting of the municipal domestic sources pollution load in Pearl River Estuary

Data collecting, typical investigation, complementary monitoring and coefficients accounting were used to investigate and account the pollution load of municipal domestic sources in Pearl River Estuary. Wastewater production of 8cities in study area was 39.64billion ton. The master producting pollutant of CODCr,BOD5,NH3-N,TN and TP were9. 079´105, 4.353´105, 1.032´105, 1.355´105, 1.42´104t/a respectively. The master out-letting pollutant of CODCr, BOD5, NH3-N,TN and TP were 6.258´105, 3.189´105, 7.32´104, 10.26´105, 9.98´103t/a respectively. In a way of discharge direction of waster, the part of direct discharge outlet to sea was about 16.9%; Xijiang River , Beijiang River and Pearl River Delta river net held about 43.2%; and Dongjiang River held about 27.1%.