某电镀厂废水处理工艺设计

本科毕业论文（设计）论文题目：某电镀厂废水处理工艺设计姓名：李豪学号：103010040129班级：1001年级：10级专业：环境工程学院：武昌工学院指导教师：易嘉玲余萃完成时间：2014年4月1作者声明本毕业论文（设计）是在导师的指导下由本人独立撰写完成的，没有剽窃、抄袭、造假等违反道德、学术规范和其他侵权行为。对本论文（设计）的研究做出重要贡献的个人和集体，均已在文中以明确方式标明。因本毕业论文（设计）引起的法律结果完全由本人承担。毕业论文（设计）成果归武昌工学院所有。特此声明作者专业：环境工程作者学号：作者签名：年月日某电镀厂废水处理设计工艺李豪ThewastewatertreatmentdesignofaelectroplatingfactoryLi,hao2014年月日1摘要我国电镀行业日趋发展，电镀废水作为世界三大污染之一，对于提倡环保的时代来说是需要特别强调的处理项目。对于发展日益快速的中国来说，也成了首要处理对象。本文首先描述了我国电镀厂废水的污染现状，对人类产生的危害，以及处理方法。分析对比各种现阶段各国普遍对电镀废水的处理方法后，结合本设计中的实际情况和处理要求，决定采取碱性氧化法处理含氰废水，通过调节PH处理含铬废水以及重金属废水，对于电泳漆废水和少部分的生活污水则采用生物接触氧化法处理，最后达标过滤消毒后再排入附近的河里。关键词：含氰废水，含铬废水，重金属废水2AbstractWiththespeedydevelopmentoftheelectroplatingenterpriseinourcountry,electroplatingindustry,asoneofthebiggestpollutionsintheworld,causesthepollutionmoreandmoreseverely.FortherapidlydevelopingChina,theelectroplatingwastewateralsobecometheprimaryprocessingobject.ThispaperfirstdescribesthepresentpollutionsituationoftheelecmtroplatingwastewaterinChina,aswellastheharmtohumansandmethodsoftreatment..Afteranalysingandcomparingallkindsofmethodsoftheelectroplating’suniversaltreatment,thencombinedwiththeactualconditionsandprocessingrequirementsofaelectroplatingfactoryinCity,besides,thisarticlealsodescribehowtotakethealkalineoxidationmethodtotreatwastewatercontainedcyanideandhowtodealwiththewastewaterwhichcontainschromiumandheavymetalbyadjustingthePH.Astotheelectrophoreticpaintwastewaterandasmallpartofdomesticsewage,Whichadoptthebiologicalcontactoxidationmethodtoprocess,andthenthefinalstandardfiltersterilizedwatercandischargeintothenearbyriver.Keywords:containingcyanidewastewater;wastewatercontainingchromium;heavymetalwastewater.武昌工学院毕业论文（设计）专用稿纸1目录引论.........................................................................................................................11电镀废水的处理与设计要求.................................................................................11.1电镀废水的处理方法........................................................................................11.2设计依据............................................................................................................21.3设计水量，水质，各类条件以及出水标准....................................................22工艺设计...................................................................................................................32.1各类废水的工艺选择及流程图........................................................................32.2工艺流程说明....................................................................................................52.3水中污染物含量变化........................................................................................63电镀废水处理设施工程设计...................................................................................73.1反应调节池1.....................................................................................................73.2调节池2.............................................................................................................103.3中和池1..........................................................................................................123.4絮凝反应池1....................................................................................................123.5沉淀池1.............................................................................................................133.6反应调节池3...................................................................................................153.7中和池2...........................................................................................................163.8絮凝反应池2...................................................................................................173.9沉淀池2...........................................................................................................183.10隔油池.............................................................................................................203.11调节池4..........................................................................................................213.11.4配套设备......................................................................................................223.11.5调节池水泵扬程计算..................................................................................223.12生物接触氧化池............................................................................................223.13沉淀池3.........................................................................................................253.14中间水池........................................................................................................27武昌工学院毕业论文（设计）专用稿纸23.15过滤器.............................................................................................................273.16PH回调池.......................................................................................................303.17污泥浓缩池....................................................................................................313.18格栅的设计计算............................................................................................334投药量计算..................................