何艳玲(聚乙烯醇污水处理)

云南能源职业技术学院资环系煤化工教研室题名：聚乙烯醇厂污水处理学生姓名：学号：指导教专业：年级：时间：煤化工毕业论文目录摘要..............................................................................1第1章引言......................................................................2第2章聚乙烯醇简介..............................................................22.1聚乙烯醇行业概况............................................................22.1.1国内外行业发展现状......................................................22.1.2国内外行业发展趋势......................................................22.1.3国内行业发展特征存在的资源和环境问题....................................32.2聚乙烯醇的应用..............................................................4第3章聚乙烯醇的生产............................................................43.1聚乙烯醇生产工艺............................................................43.1.1基础原料生产............................................................53.1.2醋酸乙烯生产............................................................53.1.3聚乙烯醇生产............................................................63.1.4醋酸甲酯回收工序........................................................7第4章生产聚乙烯醇带来的污染....................................................74.1生产聚乙烯醇带来的污染......................................................74.2行业污染情况综合分析........................................................7第5章污水处理方法及流程....................................................95.1对重金属处理方法...........................................................95.1.1化学法..................................................................95.1.2物理化学法.............................................................105.1.3生物化学法.............................................................115.1.4对重金属处理方法的评价...............................................115.2乙炔工序废水处理...........................................................125.2.1对乙炔工序废水处理的评价...............................................125.3氯碱装置废水处理.........................................................125.4污水处理流程...............................................................13第6章污水设备及工艺流程图...............................................146.1污水设备及计算.............................................................146.1.1调节池.................................................................146.1.2调节池中的中和处理.....................................................156.1.3水解池.................................................................156.1.4曝气池.................................................................166.1.5沉淀池.................................................................176.1.6污泥浓缩池.............................................................186.2污水处理工艺控制指标.......................................................196.3工业流程图.................................................................20第7章对污水处理提出新方案......................................................21煤化工毕业论文7.1改造的简介.................................................................217.2现状调查...................................................................217.3原因分析...................................................................227.4找出对策措施并实施.........................................................227.5效果检验...................................................................237.6经济效益分析...............................................................24第8章污水处理在生产中的作用和评价.......................................258.1污水处理在全厂生产中的作用............................................258.2污水处理效果...............................................................26总结.............................................................................27致谢..........................................................................27参考文献.........................................................................28煤化工毕业论文第1页共28页聚乙烯醇厂污水处理摘要：聚乙烯醇是以乙烯法生产的醋酸乙烯为原料，经溶液聚合、无水低碱醇解而得，它是一种重要的化工原料，应用领域广泛。随着聚乙烯醇生产量的增加，带来的污水量加大，需要我们利用污水处理系统解决存在的问题。本论文通过介绍污水处理设备调节池、水解池、曝气池、沉淀池、污泥浓缩池的作用及简单的计算，画出工业流程图。并针对现污水处理设备提出新方案，即在水解池中挂上填料并通入空气将其改成了曝气池，以达到提高污水处理效率，降低COD排放含量。提高化工企业整体的节能减排水平，综合治理污水建立资源节约型和环境友好型社会。关键词：聚乙烯醇污水来源处理优化Abstract:Theproductionofpolyvinylalcoholisvinylacetateethyleneasrawmaterial,bypolymerization,anhydrousalcoholsolutionderivedfromlow-alkali,itisanimportantchemicalrawmaterials,extensiveapplications.Withtheincreaseinalcoholproduction,bringingthequantityofsewagetoincrease,weneedtousethesewagetreatmentsystemtosolveexistingproblems.Thispaperdescribesthesewagetreatmentfacilitiesthroughtheregulationpool,hydrolysistank,aerationtank,settlingtank,sludgethickenerandtheroleofsimplecalculation,drawindustryflowchart.Andsewagetreatmentfacilitiesareproposedforthenewprogram,thatis,fillinthehydrolysisofthepoolandputupintotheairtopassintotheaerationtanks,sewagetreatmentinordertoachievegreaterefficiencyandreduceemissionsofCODcontent.Chemicalcompaniestoimprovetheoveralllevelofenergyconservation,establishmentofcomprehensivemanagementofwaterresourcessavingandenvironment-friendlysociety.煤化工毕业论文第2页共28页第1章引言聚乙烯醇，它是一种白色片状、絮状或粉末状固体，水溶性高分子聚合物，性能独特，是重要的化工原料，应用领域涉及纺织、食品、医药、建筑、木材加工、造纸、印刷、农业、冶金等行业，用于制造聚乙烯醇缩醛、耐汽油管道和维尼纶合成纤维、织物处理剂、乳化剂、纸张涂层、粘合剂。聚乙烯醇在云维股份是主要的产品之一，而聚乙烯醇的生产带来了污水。随着聚乙烯