A QUANTITIVE STUDY ON PROPORTION OF GROUNDWATER, RIVER WATER AND RAINWATER IN INFLUENT OF URBAN WASTEWATER TREATMENT PLANTS
-
摘要: 进水污染物浓度低及比例失调是目前许多城镇污水处理厂面临的问题,然而鲜有关于渗漏来源及定量分析的相关文献报道。为定量分析河水、地下水、雨水、管道中污染物降解等因素对污水浓度降低的影响,通过水量平衡三角法,并结合典型位点的24 h采样测试分析及S-P降解模型,对目标城镇污水处理厂进水组成进行分析。历史水量数据结合降雨情况分析表明,该污水处理厂进水中实际原生污水量仅为60.0%左右,其余40.0%左右为地下水及河水渗入量或雨水混入量。在连续晴天无降雨的情况下,小区自建管网和市政排水管网是主要的渗漏源,其对于进水有机物浓度降低的贡献分别为20.2%和26.4%。此外,在25 mm降雨量情况下,小区自建管网是主要的渗漏源,对于进水浓度降低的贡献达到39.5%。因此在污水处理提质增效工作中,小区自建管网的完善程度应引起关注。Abstract: At present, many urban wastewater treatment plants are facing the problems of low concentration and imbalance of influent pollutants. However, there are few reports on the source and quantitative analysis of leakage. In order to quantitatively analyze the influence of river water (groundwater), rainwater and pollutant degradation in pipeline on the reduction of wastewater pollutants' concentration, wastewater source of the target wastewater treatment plant was analyzed by the method of water balance trigonometry, conbined with analysis of wastewater in typical sites and the S-P degradation model. The results showed that historical water volume data combined with rainfall analysis indicated that the actual amount of primary sewage in the influent of the WWTP was only about 60.0%, and the remaining 40.0% was groundwater and river water infiltration or rainwater infiltration. The pipe network of residential quarters and municipal drainage pipe network were the main leakage sources in the sunny days, and their contribution to the reduction of inflow concentration were 20.2% and 26.4%, respectively. In addition, the pipe network of residential quarters was the main leakage source, which contributed 39.5% to the decrease of the influent concentration under 25 mm rainfall events. Therefore, attention should be paid to the completeness of residential quarters' pipe network in the process of improving the quality and efficiency of wastewater treatment.
-
Key words:
- wastewater treatment plant /
- wastewater pipe network /
- leakage /
- rainwater
-
胡春明.雨污分流,还是"同流合污"?[J].广西城镇建设,2009(4):41-43. 翁晟琳,李一平,卢绪川,等.台州市生活污水处理厂设计水量中雨水混入比例研究[J].水资源保护,2017,33(4):75-79,94. BÉNÉDITTIS DE J, BERTRAND-KRAJEWSKI J L. Infiltration in sewer systems:comparison of measurement methods[J]. Water Science and Technology, 2005, 52(3):219-227. SCHULZ N, BAUR R, KREBS P. Integrated modelling for the evaluation of infiltration effects[J]. Water Science and Technology, 2005, 52(5):215-223. 徐振宇,李大海.秦皇岛市污水处理厂运行现状与存在问题的对策[J].黑龙江水利科技, 2014, 42(10):233-234. 李津.浅谈污水管网的存在问题及对策:以厦门市某污水处理厂污水管网为例[J].企业技术开发, 2013, 32(14):160-161. BÉNÉDITTIS DE J, BERTRAND-KRAJEWSKI J L. Measurement of infiltration rates in urban sewer systems by use of oxygen isotopes[J]. Water Science and Technology, 2005, 52(3):229-237. HOUHOU J, LARTIGES B S, FRANCE-LANORD C, et al. Isotopic tracing of clear water sources in an urban sewer:a combined water and dissolved sulfate stable isotope approach[J]. Water Research, 2010, 44(1):256-266. KRACHT O, GUJER W. Quantification of infiltration into sewers based on time series of pollutant loads[J]. Water Science and Technology, 2005, 52(3):209-218. 薛梅,周柯锦,郭一令,等. 下水道中不明水的调查及防治对策[J]. 中国给水排水, 2006, 22(17):53-56. WEISS G, BROMBACH H, HALLER B. Infiltration and inflow in combined sewer systems:long-term analysis[J]. Water Science and Technology, 2002, 45(7):11-19. 徐智廷, 李河海. S-P概化模型在临沂水功能区纳污能力分析中的应用[J]. 水资源保护, 2007, 23(3):31-33. 国家环境保护总局. 水和废水监测分析方法编委会. 水和废水监测分析方法[M]. 4版. 北京:中国环境科学出版社, 2002. 刘晋, 蒋岚岚, 陈秋萍, 等. 地下水导排法在无锡某下沉广场的设计应用[J]. 中国给水排水, 2012, 28(20):98-100. 樊杰, 胡晗. 化学铁盐辅助除磷对生物除磷的影响研究[J]. 环境科学与技术, 2013, 36(2):41-45. CHAI C Y, ZHANG D W, YU Y L, et al. Carbon footprint analyses of mainstream wastewater treatment technologies under different sludge treatment scenarios in China[J]. Water, 2015, 7(3):918-938.
点击查看大图
计量
- 文章访问数: 223
- HTML全文浏览量: 29
- PDF下载量: 7
- 被引次数: 0