济南市城区综合给水与排水以及污染物排放定额研究

Study on Comprehensive Water Supply,Sewage Discharge and Pollutants Discharge Quotas of Jinan Urban District

通过对济南市给排水管网、污水厂的调查和现场实测,提出了济南市城区综合给水排水定额、排污系数以及污染物排放定额等本地化数据。结果表明,居民生活用水定额为65~75L/(人·d),城区表观综合给水定额为260~270 L/(人·d),表观综合排水量定额为280~330 L/(人·d),表观综合污水排污系数为0.95~1.09,排污系数接近甚至大于1,推断主要原因是存在无法统计的自备井以及地下水入渗现象,表观污染物排放定额分别为85.1 gCOD/(人·d)和11.1 gNH-N/(人·d)。

Based on the investigation and field measurement of the water supply,sewage drainage network and the sewage treatment plant,this paper presents the localized data of comprehensive water supply and sewage discharge quota,pollutant discharge coefficient and pollutant discharge quota in Jinan urban district.The results showed that the water demand quota in households was in the range of 65-75L/(cap·d).The apparent comprehensive water supply quota was in the range of 260-270 L/(cap·d).The apparent comprehensive sewage discharged quota was in the range of 280-330 L/(cap·d).And the apparent discharge coefficient was in the range of 0.95-1.09.The main reason why the discharge coefficient is close to or even greater than 1 may be the existence of self-provided wells that can not be counted,and the groundwater may be infiltrate into the pipe networks.As a result,COD and NH-N apparent discharge quotas were 85.1 g/(cap·d)and 11.1 g/(cap·d),respectively.