屠宰场废水处理毕业设计.doc

摘要本设计为湖北省某屠宰场的废水解决设计。屠宰场在运营生产过程中会产生大量具有高浓度有机物的废水，重要来自于各种牧畜、禽类、鱼类宰杀和加工，是我国最大的有机污染源之一。该屠宰废水解决厂的解决水量为1000m3/d，污水中的各项污染物的指标为BOD为1000mg/L，COD为2023mg/L,NH3-N为30mg/L以及SS为1500mg/L。由于该废水COD和BOD的浓度较大，所以我们规定解决后的污水达成国家的一级排放标准即：BOD≤25mg/L，COD≤100mg/L，NH3-N≤15，SS≤70mg/L。经分析可知该屠宰场的废水重要包含的是易沉淀的悬浮物和无机物和易生化降解的有机物，所以我们可以采用物理解决和生物解决相结合的方式来进行污水的净化。一方面采用物理解决来去除污水中容易沉淀的悬浮物和无机物，然后采用水解酸化-SBR工艺来去除污水中的有机物。具有投资和解决成本低廉，工艺简朴和管理方便等很多方面的优点。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_Toc211532