摘要
为估算农村生活污水污染物排放系数,于2007年8月至2008年7月在昆山锦溪镇周家浜村,通过每月收集不同收入家庭的排放污水,对生活污水排放量以及COD和氮磷排放情况进行了调查研究。结果表明,农村居民人均污水排放量、人均生活污水COD排放量和氮磷排放量的季节差异显著,且与家庭收入呈负相关趋势。农村生活污水COD、氨氮、总氮和总磷排放系数分别为58.3、3.6、6.2、0.4 kg.a-1.人-1,氮磷总排放系数达6.6 kg.a-1.人-1,明显高于以往文献中常用的3.3 kg.a-1.人-1,并对其原因进行了分析。该排放系数对太湖流域其他地区农村生活污水排放的估算具有一定参考价值。
To estimate discharge index of pollutants from village sewage in Taihu region,the investigation on village sewage was carried out in Zhoujiabang Village,Jinxi Town,Kunshan City.The village sewage from families with different incomes was collected monthly in August 2007 to July 2008,and the discharges of COD,NH4＋-N,total nitrogen（TN）and total phosphorous（TP）from village sewage were determined.The results showed that the amount of village sewage per person and the amount of COD,TN and TP from village sewage changed significant-ly with seasons,and had a negative correlation with the family income.The discharge indexes of COD,NH4＋-N,TN and TP pollution from vil-lage sewage in Kunshan were 58.3 kg.a-1.person-1,3.6 kg.a-1.person-1,6.2 kg.a-1.person-1 and 0.4 kg.a-1.person-1,respectively.The dis-charge index of N and P from village sewage（6.6 kg.a-.1person-1）was much higher than that reported in previous literature（3.3 kg.a-1.person-1）.The possible reasons were discussed in this paper.The discharge indexes of pollution from village sewage obtained from the present study provide the useful information for the estimation of pollution discharge in other zones of Taihu region.
出处
《农业环境科学学报》
CAS
CSCD
北大核心
2010年第7期1369-1373,共5页
Journal of Agro-Environment Science
基金
农业部行业项目(200803031)
江苏省科技厅太湖专项(BK2007737,BS2007164)
关键词
农村生活污水
排放系数
太湖
COD
氮
磷
village sewage pollution
discharge index
Taihu
COD
nitrogen
phosphorous
