20万污水处理厂毕业设计

东莞市石碣水厂工艺设计西安建筑科技大学给水排水工程2009届学生姓名：黄志超指导老师：张建锋摘要近年来由于农业对地下水的开采，工农业争水矛盾越来越大。另外，城市生产及生活用水量也在逐年增加，且增长速度很快，原有的供水设施在常年负荷下运行也不能满足需要。这种现状已严重影响了城市各行业的发展及居民的正常的生活。为了缓解供水紧张状况，除考虑有效的利用水资源及节约用水以外，必须尽快兴建新的供水设施。考虑到东莞市的经济结构调整和持续发展的需要和石碣镇的自然条件（地理位置、地形及气象条件）的特点,进行给水厂设计。选择东江作为水厂的水源。水厂的工艺如下：↓混凝剂↓加氯原水→网格絮凝池、平流沉淀池（合建）→普通快滤池→清水池→二泵站出水设计过程中充分考虑各工艺在实际运行中的应用情况,以及结构的复杂情况等。本设计说明书主要内容包括：设计原始资料，净水厂工艺流程，生产自用水回收工艺，总体布置，建筑物、构筑物设计。关键词：水量絮凝沉淀池普通快滤池水处理工艺AbstractInrecentyears,industrialandagriculturalwateranincreasinglyseriousconflicts，astheexploitationofagricultureongroundwater.Inaddition,productionandurbanwaterconsumptionhasincreasedyearbyyearandthegrowthratesoon,theoriginalwatersupplyfacilitiesintheyearsrunningloadcannotmeettheneed.Thisstateofaffairshasseriouslyaffectedthecitiesofthedevelopmentoftheindustryandtheresidentsofanormallife.Inordertoalleviatethesupplytension,inadditiontoefficientuseofwaterresourcesandwaterconservationmustassoonaspossibletheconstructionofnewwatersupplyfacilities.AccordingthecharacteristicofthenaturalconditionsofandthestonetonetablettownofeconomicrestructuringandsustainabledevelopmentofDongguan(geographicalposition,topographyandmeteorologicalcondition),forthewaterworkstodesign.ChooseDongjiangasthesourceofwaterofthewaterworks.Thecraftofthewaterworksisasfollows:.↓CoagulantRawwater→Gridflocculationpond,rapidfilter↓Chlorination(Jointlybuilt)→Ordinaryquickfiltertank→clearwaterreservoir→twowaterpumpingstationTheprocessofdesigningfullyconsiderallofthepracticaloperationofthesituationandstructureofthecomplexsituation.Thespecificationofthedesignincludingtheoriginaldesigninformation,waterpurification,designofwatermainstructures.Keywords:Storage;Flocculationsedimentationtanks;rapidfilter;Watertreatmenttechnology目录摘要..............................................................................................................................1Abstract........................................................................................................................2第一章设计说明书....................................................................................................71.1总论...................................................................................................................71.1.1项目建设背景.......................................................................................71.1.2编制目的、范围和依据.......................................................................71.1.3工程概况...............................................................................................81.1.4自然条件...............................................................................................81.2总体规划和方案制定.......................................................................................91.2.1水源选择一般原则...............................................................................91.2.2净水厂厂址选择和方案确定.............................................................101.3工程方案内容..................................................................................................101.3.1设计原则............................................................................................101.3.2工程项目规模及内容.........................................................................111.4净水厂构筑物设计说明.................................................................................121.4.1取水构筑物.........................................................................................121.4.2絮凝池.................................................................................................121.4.3平流沉淀池........................................................................................131.4.4普通快滤池.........................................................................................141.4.5清水池.................................................................................................141.4.6送水泵站（二级泵站）.....................................................................141.4.7加氯间.................................................................................................15第二章取水构筑物设计..........................................................................................162.1取水构筑物位置的选择..................................................................................162.2取水构筑物形式的设计..................................................................................172.3集水井设计......................................................................................................172.4一泵站的设计..................................................................................................192.4.1设计流量和扬程的确定.....................................................................192.4.2选择水泵.............................................................................................202.4.3基础尺寸.............................................................................................202.4.4吸水管路和压水管路的计算.............................................................202.4.5水泵安装高度的确定与泵房高度计算.............................................212.4.6辅助设备的确定..........................................