平原河网水体石油类浓度达标及总量控制

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1、第30卷第1期水资源保护2014年1月Vol．30No．1WATEＲＲESOUＲCESPＲOTECTIONJan．2014DOI:10．3969/j．issn．1004-6933．2014．01．012平原河网水体石油类浓度达标及总量控制11，23胡琦玉，逄勇，鲁祖宝(1．河海大学环境学院，江苏南京210098;2．河海大学浅水湖泊综合治理与资源开发教育部重点实验室，江苏南京210098;3．台州市环境保护局，浙江台州318001)摘要:选取台州市区水体为平原河网水体代表，根据石油类污染物垂向分布规律，得到台州市区水－1体石油类污染物垂向分布系数为2.33m，修订各断面垂向

2、平均浓度为水深0.5m处浓度，简化三维问题;建立台州市中心片区一维河网水量水质模型，对各项参数进行率定验证。分别利用水环境容量数学模型和一维河网模型获得研究区域石油类水环境容量和断面达标时各排污口的削减量。结果表明:研究区域内石油类水环境容量为2.68t/a，容量总量达标情况下，石油类污染物削减率为75%;主要控制断面达标情况下，各排污口的削减率在33%～100%之间。关键词:水环境容量;石油类污染物;总量控制;垂向分布;参数率定;削减量;平原河网;台州市中图分类号:X32文献标志码:A文章编号:1004-6933(2014)01-0057-07Standard-reach

3、inganalysisofpetroleumpollutantconcentrationsandtotalquantitycontrolinplainrivernetwork11，23HUQiyu，PANGYong，LUZubao(1．CollegeofEnvironment，HohaiUniversity，Nanjing210098，China;2．KeyLaboratoryofIntegratedＲegulationandＲesourcesDevelopmentonShallowLakes，MinistryofEducation，HohaiUniversity，Nanj

4、ing，210098，China;3．TaizhouEnvironmentalProtection，Taizhou318001，China)Abstract:WeselectedwaterbodiesintheurbanareaofTaizhouCityasrepresentativeofplainrivernetworks．Accordingtotheregularityofverticaldistributionofpetroleumpollutants，weobtainedtheverticaldistributioncoefficientofthepetroleum

5、pollutantsintheurbanarea，whichwasα=2.33m，andsimplifiedthethree-dimensionalproblembyrevisingtheverticalaverageconcentrationforeachsectionintotheconcentrationatadepthof0.5m．Wealsoconstructedaone-dimensionalrivernetworkwaterquantityandwaterqualitymodelfortheTaizhoudowntownareaandcalibratedand

6、verifiedtheparametersofthemodel．Usingthemathematicalmodelofwaterenvironmentalcapacityandtheone-dimensionalrivernetworkmodel，respectively，weobtainedthestudyarea’spetroleumwaterenvironmentalcapacityandthereductionforeachgeneralizeddrainageoutletwhenthewaterqualityreachedthestandards．Theresul

7、tsshowthatthestudyarea’spetroleumwaterenvironmentalcapacitywas2.68tonsperyear．Thereductionrateofpetroleumpollutantsshouldbe75%inordertoensurethatthetotalcapacitycanreachthestandards，andthereductionrateofpetroleumpollutantsateachgeneralizeddrainageoutletshouldb