屠宰场废水处理优质毕业设计.doc

摘要本设计为湖北省某屠宰场废水处理设计。屠宰场在运行生产过程中会产生大量含有高浓度有机物废水，关键来自于多种牧畜、禽类、鱼类宰杀和加工，是中国最大有机污染源之一。该屠宰废水处理厂处理水量为1000m3/d，污水中各项污染物指标为BOD为1000mg/L，COD为mg/L,NH3-N为30mg/L和SS为1500mg/L。因为该废水COD和BOD浓度较大，所以我们要求处理后污水达成国家一级排放标准即：BOD≤25mg/L，COD≤100mg/L，NH3-N≤15，SS≤70mg/L。经分析可知该屠宰场废水关键包含是易沉淀悬浮物和无机物和易生化降解有机物，所以我们能够采取物理处理和生物处理相结合方法来进行污水净化。首先采取物理处理来去除污水中轻易沉淀悬浮物和无机物，然后采取水解酸化-SBR工艺来去除污水中有机物。含有投资和处理成本低廉，工艺简单和管理方便等很多方面优点。关键字：屠宰场废水；水解酸化；SBR工艺ABSTRACTTheslaughterhousewastewateristreatmentinthisdesigninHubeiProvince.Alargeamountofwastewatercontaininghighconcentrationoforganicmatterisproduceinrunningofslaughterhouse，TheslaughterhouseWastewaterisoneofthecountry'slargestorganicpollutionsources，whichmaincomefromslaughteringlivestockbreeding﹑poultry﹑fishslaughterprocessing.Thewaterwhichneedstotreatmentintheslaughterhousewastewatertreatmentplantis1800m3/d.Varioustargetintherawwastewateris:theconcentrationofBODis1000mg/L,theconcentrationofCODis1800mg/L,theconcentrationofSSis800mg/L.fortheslaughterhousewastewater’sCODandBODishigh,soitrequesttheslaughterhousewastewatertomeetthenationalfirstdischargestandardsafterprocessing：BOD≤25mg/L﹑COD≤100mg/L﹑SS≤70mg/L﹑NH3-N≤15mg/L.Aftertheanalysis,thequalityofthisprocessingwaterbelongstothewastewaterthateasysedimentationofsuspendedsolidsandeasybiochemicaldegradationoforganicmatter.Sowecanadoptingthecombinationofphysicaltreatmentandbiologicaltreatmentmethodstodealwiththewastewater.Firstly，wecanadoptingphysicaltreatmenttoremovetheeasysedimentationofsuspendedsolidsinwastewater，afterthat，usetheprocessofhydrolyticacidification-SBRtoremovetheorganicmatterinwastewater.Hastheadvantagesoflowprocessingcost，simpleprocess，easytomanagementandsoon.Keywords：slaughterhousewastewater；hydrolyticacidification；SBRtechnology目录TOC\o"1-3"\h\uHYPERLINK\l_Toc6382摘要PAGEREF_Toc6382IHYPERLINK\l_Toc21415ABSTRACTPAGEREF_Toc21415IIHYPERLINK\l_Toc31585前言PAGEREF_Toc315851HYPERLINK\l_Toc7220第一章概论PAGEREF_Toc72202HYPERLINK\l_Toc211531.1设计任务PAGEREF_Toc211532HYPERLINK\l_Toc4751.2设