2023·12环境工程67ModernChemicalResearch当代化工研究表面活性剂在污水有机物降解中的应用研究*张小峰(中国石油工程建设有限公司北京设计分公司北京100083)摘要:由于表面活性剂有着显著降低液体表面张力、不会污染环境及灵活广泛等优势,在污水有机物降解中有着广泛的应用。选择两种阳离子型和两种阴离子型表面活性剂,并制备COD为58mg/L的污水作为实验材料,实验中分别计算污水COD与有机物降解率,作为判定表面活性剂对污水有机物降解影响的指标。实验结果表明,污水COD随表面活性剂浓度的增大而减小,当表面活性剂投加量为50mg/L、污水接种量为30mL、降解时间为10min时,有机物降解效果最好,降解率为21.5%。关键词:表面活性剂;污水;有机物降解;应用研究中图分类号:X703.1文献标识码:ADOI:10.20087/j.cnki.1672-8114.2023.12.022StudyontheApplicationofSurfactantintheDegradationofOrganicMatterinSewageZhangXiaofeng(BeijingDesignBranchofChinaPetroleumEngineeringConstructionCo.,Ltd.,Beijing,100083)Abstract:Duetotheadvantagesofsignificantlyreducingliquidsurfacetension,notpollutingtheenvironment,andbeingflexibleandwidespread,surfactantshavebeenwidelyusedinthedegradationoforganicpollutantsinwastewater.TwocationicandtwoanionicsurfactantswereselectedandwastewaterwithaCODof58mg/Lwaspreparedasexperimentalmaterials.Intheexperiment,CODandorganicmatterdegradationratesofwastewaterwerecalculatedseparatelyasindicatorstodeterminetheimpactofsurfactantsonorganicmatterdegradationinwastewater.TheexperimentalresultsshowthatCODinwastewaterdecreaseswiththeincreaseofsurfactantconcentration.Whenthedosageofsurfactantis50mg/L,theinoculationamountofwastewateris30mL,andthedegradationtimeis10min,thedegradationeffectoforganicmatteristhebest,withadegradationrateof21.5%.Keywords:surfactant;sewage;degradationoforganicmatter;applicationresearch引言水是人类赖以生存的重要资源,随着我国工农业的高速发展,污水排放量急剧增加,严重威胁着我国人民的用水安全。据相关研究表明,在我国内陆河流中的有机污染物高达上百种,且大多为致癌、致突变等污染物,不仅对生态环境具有一定危害性,甚至威胁着人类的身体健康,导致周边居民呼吸道、消化道等疾病高发,所以研究污水治...