最新膜生物反应器原理处理化工、纺织废水污水处理毕业设计计算书

XX工业大学毕业设计说明书作者：XXXX学号：XXXXXXXXX学院：土木工程学院系(专业)：给水排水工程题目：膜生物反应器原理及某城市污水厂工程设计指导者：XX讲师(姓名)(专业技术职务)评阅者：(姓名)(专业技术职务)2016年12月4日毕业设计（论文）中文摘要膜生物反应器原理以及中小城市污水处理厂摘要：本次毕业设计是以相关的资料为依据,设计一座城市污水处理厂。其日处理量为10万立方米。由于城市污水的主要成分为有机物,所以本次设计采用膜生物反应器原理工艺。膜生物反应器集生物反应器的生物降解和膜的高效分离于一体，是膜技术和污水生物处理技术有机结合产生的新型高效污水生物处理工艺。其工作原理是利用反应器的好氧微生物降解污水中的有机污染物。同时，利用反应器内的硝化细菌转化污水中的氨氮，以去除污水中产生的异味（污水中的异味主要由氨氮产生）。最后，通过中空纤维膜进行高效的固液分离出水。膜生物反应器工艺通过膜分离技术大大强化了生物反应器的功能，与传统的生物处理方法相比，具有生化效率高、抗负荷冲击能力强、出水水质稳定、占地面积小、排泥周期长、易实现自动控制等优点，是目前最有前途的污水回用处理技术之一。污水经气浮、过滤工艺处理后，可直接由过滤泵送至MBR反应器处理，出水进入储水池消毒即可回用或排放。处理后的水达到国家规定的二级排放标准。允许直接排放入X流和湖泊或用于农田灌溉。处理后的活性污泥经脱水后用于肥料。本次设计在构想中充分考虑了环境效益与经济效益之间的联系,尽量最大限度使两者协调。关键词：膜生物反应器生活污水污泥毕业设计（论文）外文摘要TitleMembranebioreactorprincipleaswellassmallandMedium-sizedurbansewagetreatmentplantAbstractThisgraduationprojectistaketherelatedmaterialasthebasis,designsacitysewagetreatmentplant.Itsdayprocessloadwillbe100,000cubicmeters.Becausethecitysewageprincipalconstituentisanorganicmatter,thereforethisdesignhasusedtheprincipleprocessofmembranebioreactor.Membranebioreactortechnologygreatlystrengthenthefunctionsofthebioreactorthroughthemembraneseparationtechnology,andthemembranebioreactorprocessisanewandefficientbiologicalwastewatertreatmentprocessproducedbytheorganiccombinationofmembranetechnologyandbiologicalwastewatertreatmenttechnology.Itsworkingprincipleisusingtheaerobicmicrobialinthereactordegradingorganicpollutantsofsewage.Atthesametime,usingnitrifyingbacteriawithinthereactorconversionofammonianitrogeninthesewagetoremovethesewagesmell(theodorofthesewageisgeneratedbyammonia).Finally,efficientsolid-liquidseparationofwateriscarriedoutthroughthehollowfibermembrane.Membranebioreactortechnologygreatlystrengthenthefunctionsofthebioreactorthroughthemembraneseparationtechnology.Comparedwithconventionalbiologicaltreatmentmethods,ithasadvantagesofthebiochemicalefficiency,resistancetoshockloadingcapability,waterqualityandstability,smallfootprint,longlifecycleofmud,easytoimplementautomaticcontrol,etc.Itiscurrentlyoneofthemostpromisingtreatmenttechnologyofwastewaterreuse.Sewagebyflotation,filtrationprocesscanbedirectlytotheMBRbythefilterpump,andthewaterafterenteringthestoragetankfordisinfectioncanreuseordischarge.Aftertheprocessingwaterachievedthecountrystipulatedtwolevelsdischargethestandard.Allowstodischargeintotheriversandthelakedirectlyorusesinthefarmlandirrigation.Aftertheprocessingactivesludgeusesinthefertilizerafterthedehydration.Thisdesignhadconsideredfullyintheconceptionbetweentheenvironmentbenefitandtheeconomicefficiencyrelation,asfaraspossiblemaximumlimitcausesbothcoordination.Keywords：membranebioreactorsanitarysewagemud目录1引言.................................................................11．1概述...........................................................11．2本课题的目的及研究意义.........................................21．3本课题的国内外研究现状.........................................21.3.1国内研究现状..............................................21.3.2国外研究现状..............................................31．4设计原始资料...................................................31.4.1建设污水处理设施的必要性..................................31.4.2废水来源与水质特点........................................41.4.3设计资料..................................................42工艺方案的选择.......................................................52．1总论...........................................................52．2设计原则.......................................................52．3工艺流程的确定.................................................63污水处理构筑物的设计计算.............................................73．1中格栅（20mm）.................................................73.1.1设计说明..................................................73.1.2设计计算..................................................83.1.3设备选型..................................................93．2污水提升泵房..................................................103.2.1设置作用.................................................103.2.2提升泵房设计原则.........................................103.2.3泵站扬程估算.............................................113.2.4泵的选型.................................................113.2.5集水池面积计算...........................................123.2.6吸水管路与压水管路计算...................................123.2.7泵机组布置原则...........................................133．3细格栅（8mm）.................................................133.3.1设计说明.................................................133.3.2设计计算.................................................133.3.3设备选型.................................................153．4沉砂池........................................................153.4.1设计说明.................................................153.4.2设计计算.................................................163.4.3设备选型.................................................183．5初沉池（辐流沉淀池）..........................................193.5.1设计说明.................................................193.5.2初沉池主体设计计算.......................................193．6膜生物反应池..................................................243.6.1厌氧池...........................................