氧化沟工艺设计计算说明书

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1、摘要中文摘要：本次毕业设计的设计题目为某县污水处理厂工程初步设计。厌氧池＋氧化沟工艺是生物反应池的组合工艺,具有同时生物脱氮除磷功能。该工艺采用缺氧-好氧系统使污水中的氨氮通过硝化和反硝化过程最终达到脱氮目的；而污水系统中的磷则通过厌氧-好氧系统中的聚磷菌过量吸收磷而储存在污泥中，并通过排放剩余富磷污泥形式来达到除磷目的。该工艺除具有A2/O工艺的各项优点外，还具有氧化沟的一些独特的特点：氧化沟具有独特的水力流动特点，有利于活性污泥的生物聚集作用，而且可以将其工作区分为富氧区、缺氧区，用以进行硝化和反硝化作用，取得脱氮的效果；氧化沟具有对水温、水质、水量的变化有较强的适应性。氧化沟

2、具有较高的脱氮效果，污泥产率低，且已多达到稳定的程度，勿需再进行消化处理。关键词：厌氧池、氧化沟、富磷污泥、生物脱氮除磷ABSTRACT：Thedesigntopicofthisgraduatedesignisdirtywaterinsomecountytohandlefactoryengineeringfirststepdesign.Anaerobicpond+oxidizetheditchcraftisacombinationcraftthatlivingcreaturerespondthepond,havingthelivingcreaturetotakeoffatthesa

3、metimethenitrogendividedbythefunctionofphosphorus.Thatcraftadoptionanoxia-thegoodoxygensystemmakesthedirtyandaquaticammonianitrogenpassthenitrictoturntoturntheprocesswiththeversanitrictheendattainingtakesoffthenitrogenpurpose;Butthedirtywaterphosphorusinthesystemthenpassestheoxygenof厌-thegoodo

4、xygenthegermofphosphorusinthesystemtoesmanytheabsorptionphosphorusbutstoreindirtymire,andpasstoexhaustthesurplusenrichthedirtymireinphosphorusformtoattaintodividedbythepurposeofphosphorus.ThatcraftisinadditiontovariousadvantagesthathavetheA2/thecraftofO,stillhavingthespecialcharacteristicsinso

5、methatoxidizetheditch:Oxidizingtheditchhasthespecialwaterpowerflowsthecharacteristics,benefitingtothelivingcreatureoftheliveanddirtymirecometogetherthefunction,andcanclassifiedintoitsworktoenrichtheoxygenarea,anoxiaarea,proceedinginordertothenitricturntoturnthefunctionwiththeversanitric,obtain

6、ingtotakeoffthenitrogenousresult;Oxidizingtheditchhasthevarietytomeasuretowatertemperature,fluidmatter,watercontainstrongeradaptability.Oxidizingtheditchhastotakeoffthenitrogenresulthigherly,thedirtymireproducestheratelow,andhaveattainedstabledegreemore,needtoproceedagainnotthedigesthandles.Ke

7、ywords:anaerobicpond,oxidizetheditchandenrichthedirtymire,livingcreatureinphosphorustakeoffthenitrogendividedsbythephosphorus.目录第一部分前言……………………………………………………………………1摘要……………………………………………………………………2第二部分第一篇设计说明书………………………………………………4第一章概述…………………………