Discharge Laws of Rural Domestic Sewage in Eco-Island of Downstream Yangtze River
In order to clarify the law of rural domestic sewage discharge in the islands of downstream Yangtze River,the research on sewage discharge in the rural area of town A of Chongming eco-island,where the Yangtze River enters the sea,showed that:the average resident population of households was 1.55 persons/households,and the per capita water consumption was 79.5 L/(person-day),and the average discount coefficient of pollution was 0.76.Black water discharge in rural domestic sewage was small,the concentration of pollutants was high,and the amount of black water per capita account for 29.90%of the amount of water discharged.The discharge volume and pollutant concentration of rural domestic sewage fluctuated greatly,with higher pollutant concentration from 7:00 to 8:00,and the discharge volume reached the maximum value of the whole day at 20:00.The daily discharge per capita varied greatly throughout the year,and the daily load varied little,but the daily discharge per capita and load were greater during the National Day and Chinese New Year festivals.The results of this study are of great significance to the exploration of the model selection,equipment development,standardization and resource utilization of rural domestic sewage treatment in the eco-islands in downstream of Yangtze River.
rural domestic sewagepollutant load per capitadischarge patterndownstream of Yangtze Riverenvironment monitoring
国家科技期刊平台
NSTL
万方数据
