污染与治理-118-排淡河底泥污染调查研究及治理对策贡子尧(江苏智盛环境科技有限公司,江苏连云港市222000)摘要:在排淡河沿岸截污工程未实施前,大量未经处理或只经简单处理的废水直接排入排淡河,污染物质不断沉降吸附于底泥中,构成内源性污染,在一定的物理化学及环境条件下,营养盐从底泥中释放出来重新进入水中,影响排淡河水体整治成效。底泥污染是造成河流水质下降甚至形成黑臭现象的主要因素之一,因此开展排淡河底泥污染调查研究工作十分必要。本文在底泥污染物实际监测的基础上,分析排淡河底泥特征及污染程度,并提出底泥污染治理对策及建议。关键词:内源污染;水环境污染;治理对策中图分类号:TS5文献标志码:ADOI:10.20025/j.cnki.CN10-1679.2022-24-40InvestigationandStudyofDrainageRiverSedimentPollutionandTreatmentCountermeasuresGongZiyao(JiangsuZhishengEnvironmentalTechnologyCo.,Ltd.,Lianyungang222000,China)Abstract:Inthedrainageriverinterceptionprojectbeforetheimplementation,alargenumberofuntreatedoronlyaftersimpletreatmentofwastewaterdirectlyintodrainageriver,pollutantssubsidenceadsorptioninthesediment,constituteendogenouspollution,certainphysicalandchemicalandenvironmentalconditions,nutrientsaltreleasedfromthesedimentandbackintothewater,affecttheeffectofdrainagewaterbodyregulation.Therefore,thesedimentpollutionisoneofthemainfactorsthatcausethedeclineoftheriverwaterqualityandeventheformationofblackodorphenomenon,soitisverynecessarytocarryouttheinvestigationandresearchworkofthedrainageoftheriversedimentpollution.Basedontheactualmonitoringofthesedimentpollutants,thecharacteristicsofthesedimentandthedegreeofthepollutionofthesedimentpollutionareanalyzed.Keywords:endogenouspollution;waterenvironmentpollution;controlcountermeasures为落实党中央、国务院决策部署,住房和城乡建设部、生态环境部、国家发展改革委、水利部印发《深入打好城市黑臭水体治理攻坚战实施方案》(建城〔2022〕29号)。《实施方案》明确了“十四五”时期,城市黑臭水体治理的重点任务和措施,提出了加快城市黑臭水体排查及方案制定、强化流域统筹治理、持续推进污染源头治理、系统开展水系治理等八项内容[1]。与此同时,连云港经济技术开发区水体整治方案提出了...