天津市农村生活污水产生数量估算和分析_石利军
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2020-02-29 11:22:49
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天津市农村生活污水产生数量估算和分析石利军1,2,张伟玉1,3,班立桐1,2(1.天津中日农村环境资源合作研究中心,天津300384;2.天津农学院农学系,天津300384;3.天津农学院机电系,天津300384)摘要:为了提升农村污水的收集和处理工作,明确天津市农村地区生活污水的排放数量,采用排放系数法对天津农村生活污水排放量进行了估算。为了评价计算结果的准确性,将计算结果和调查统计得到的数据进行对比分析。根据天津农村地区的人口总量、人均用水量和污水排放系数计算出天津农村生活污水产生量为5.904×107m3/a,占2008年天津市城镇生活污水排放总量的14.9%。通过和调查统计法得到的数据进行对比,表明该计算方法是可行的。计算结果显示天津农村生活污水排放量相对较低,但由于缺少污水收集管网和处理设施,农村水环境污染状况日益严重。指出应该提前规划做好农村地区生活污水的收集和处理工作,保护好广大农村地区的生活环境。关键词:农村;生活污水;排放数量;排放系数中图分类号:F323.22文献标识码:ADOI编码:10.3969/j.issn.1006-6500.2010.05.024CalculationandAnalysisoftheDrainageAmountoftheDomesticSewageintheRuralAreasofTianjinSHILi-jun1,2,ZHANGWei-yu1,3,BANLi-tong1,2(1.China-JapanCollaborativeResearchCenterforRuralEnvironmentandResource,Tianjin300384,China;2.DepartmentofAgronomy,TianjinAgricul⁃turalUniversity,Tianjin300384,China;3.DepartmentofElectromechiealEngineering,TianjinAgriculturalUniversity,Tianjin300384,China)Abstract:InordertoimprovethecollectionanddisposalofthedomesticsewageintheruralareasandtoidentifythedrainageamountofthedomesticsewageintheruralareasofTianjin,themethodofdischargecoefficientwasusedtocalculatethisamount.TheareaofresearchincludedalltheruraldistractsinTianjinandthedrainageamountfromcalculationwascomparedtothatfromstatisticalinves-tigationtoassessthefeasibility.Accordingtopopulation,waterintakenormandsewagedischargecoefficientintheruralareasofTian-jin,theamountofthedomesticsewageintheruralareasofTianjinwasabout5.904×107m3/a,whichwasabout14.9%ofthemunici-palwastewaterinTianjinin2008.Theresultshowedthatthemethodwasfeasiblecomparisonwiththestatisticalinvestigation.ThoughthedrainageamountofthedomesticsewageintheruralareasofTianjinwaslow,theenvironmentalpollutioninruralareaswasseriousowingtolackofwastewatercollectionanddisposalsystem.Thesuggestionwasproposedthatthedomesticsewageintheruralareasshouldbecollectedanddisposedassoonaspossibletoimprovetheenvironmentalsituationintheruralareas.Keywords:ruralareas;domesticsewage;drainageamount;dischargecoefficient农业环境保护收稿日期:2010-05-10;修订日期:2010-07-10基金项目:天津市农业
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