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Position: Home > Articles > Investigation and Analysis of the Rural Sewage Discharge in the Three Gorges Reservoir Area Hubei Agricultural Sciences 2015,54 (23) 5843-5847+5852

三峡库区农村污水排放现状调查与分析

作  者:
王家;夏颖;范先鹏;吴茂前;张富林;刘冬碧;张继铭
单  位:
湖北省农业科学院植保土肥研究所
关键词:
三峡库区;兴山县;农村污水排放;排污系数法
摘  要:
通过实地调查,对湖北省三峡库区典型流域兴山县农村污水现状进行了研究。采用排污系数法对农村生活污染物和畜禽养殖污染物负荷量进行了测算,分析了流域内农村污水排放的特征,以期为三峡库区农村污水处理设施建设提供科学依据。调查分析结果表明,典型流域内农村污染物TN、TP和COD的排放/流失总量分别为569.8、24.6、2 779.1 kg/年,其中畜禽养殖污染物排放的TN、TP和COD分别占各污染物排放/流失总量的98.79%、96.34%和89.50%;生活污水排放量从大至小依次为夏季>秋季>春季>冬季,农村生活污水排放中夏季人均日生活污水排放量最大,为195.2 L/(d·人),冬季生活污水排放量最少,为69.0 L/(d·人);农村生活污水中主要成分是洗涤用水,其COD浓度为218.8~509.8 mg/L,TN浓度为41.2~99.6 mg/L,NH4+-N为3.4~5.2 mg/L,TP为1.8~2.9 mg/L;畜禽养殖污水的排放量受降雨影响较大,夏季排放量最高,但是污染物浓度最低;畜禽污水中各污染物平均浓度:COD为7 702.9 mg/L、TN为1 239.4 mg/L、TP为71.1 mg/L、NH4+-N为415.0 mg/L。畜禽粪便的排放量按从大到小的顺序排列为冬季>秋季>夏季>春季。
译  名:
Investigation and Analysis of the Rural Sewage Discharge in the Three Gorges Reservoir Area
作  者:
WANG Jia;XIA Ying;FAN Xian-peng;WU Mao-qian;ZHANG Fu-lin;LIU Dong-bi;ZHANG Ji-ming;Institute of Plant Protection ,Soil and Fertilizer Sciences,Hubei Academy of Agricultural Sciences;School of Resource and Environment Engineering,Wuhan University of Technology;
关键词:
The Three Gorges Reservoir area;;Xingshan county;;rural sewage;;pollution discharge coefficient method
摘  要:
Through field investigation, we studied the rural sewage discharge status in Xingshan county, which is one of the typical area of Three Gorges Reservoir area. The rural living pollutants and livestock contaminants load were calculated by pollution discharge coefficient method, the characteristics of the rural sewage discharge in small watershed were analyzed to provide a scientific basis for the construction of rural sewage treatment facilities. The results from the investigation indicated that the total discharge or loss amount of total nitrogen(TN), total phosphorus(TP) and chemical oxygen demand(COD) of agricultural pollution in the studied area were 569.8, 24.6, 2 779.1 kg / year, in which the total discharge or loss amount of TN, TP and COD of livestock and poultry farming accounted for 98.79%, 96.34% and 89.50%, respectively. The order of the domestic sewage discharge amount was summer >fall >spring >winter,meantime,the per capita pollutant emissions was the highest in summer,195.2 L per day, and the lowest in winter,69.0 L per day.The major ingredient of domestic sewage was wash water,the concentrations of COD, TN,NH4+-N and TP in domestic wastewater were 218.8~509.8 mg / L, 41.2~99.6 mg / L,3.4~5.2 mg / L and1.8~2.9 mg / L, respectively. The wastewater emissions amounts of livestock and poultry were greatly influenced by rainfall, the highest emissions season was in summer with minimum pollutant concentration. The concentrations of COD,TN,NH4+-N and TP in wastewater of livestock and poultry were 7 702.9 mg / L,1 239.4 mg / L,71.1 mg / L,415.0 mg / L,respectively. The discharge amount order of animal dung was winter> fall > summer > spring.

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