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ID:36346212
大小:4.05 MB
页数:67页
时间:2019-05-09
《UASB工艺处理养殖废水的厌氧氨化及产气率实验研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、西南交通大学硕士学位论文UASB工艺处理养殖废水的厌氧氨化及产气率实验研究姓名:房景燕申请学位级别:硕士专业:环境工程指导教师:付永胜;陈攀江20080501西南交通大学硕士研究生学位论文第lI页出水VFA浓度达到16mmol/L以上时,表明反应器存在酸化的危险,需要采取措施加以改进。关键字:猪场废水UASB反应器氨氮增加率产气率西南交通大学硕士研究生学位论文第1II页AbstractThelargeamountofpiggerywastewaterfromthefarmismostlyemitteddirectlywithoutappropriaterecyclean
2、dtreatment,whichbroughtaboutaseriouspollutiontotheenvironment.Inallusiontothecharaceristicsofhighorgaism,suspendingsubstance(SS)andNH3一N,UASBwasbroughtforwardtotreatpiggerywastewater.Byusingexperimentalsimulate,thebestconditionsofdisposingpiggerywastewatewerefoundOllthebasisofanalyzingef
3、fectionofdifferentinfulconcentrations、differentHRT、differenttemperatures、differentpHtoUASBreactorandafoundationwaslaiedtoengineerings.UsingUASBreactordisposepiggerywastewater,bycoutrolingimpactingfactorsandprocess,sludgewithgoodsedimentscoundbeplanted.ThefeasibilityofUsingUASBdisposingpi
4、ggerywastewaterwasdemonstrated.Theresearchindicated:infulconcentrationswasimportantfactorstooutfulNH3·Nconcentrations、NH3-Nincreasingrates、CODconcentrations、CODremovalrates、producinggasrates.NH3-NincreasingrateswereincreasedwihtheincreaseofNH4-Nconcentrations;CODremovalrateswereincreased
5、wihtheCODconcentrationsofinfulwater;thelargerinfulconcentrationswas,thehigherproducinggasrates;TheeffectionsofaseriesofHRTstorecatorwereanalyzedandtheresultsindicatedthatwhenHRTwas36h,NH3-Nincreasingratewas16%,CODremovalratewas78%,producinggasratewas1.17L/L·d.,whenHRTwas43h--.,48h,NH3一Ni
6、ncreasingrateWas16.5%,CODremovalratewas80%,producinggasratewas1.20L/L·d.SothebestHRTwere43h'-"48h.:Underdifferenttemperatureofinfulwater,NH3·Nincreasingrates、CODremovalrates、producinggasratesweremaximumin15"Coflowtemperaturephase、35"Cofmiddletemperaturephaseand55"Cofhightemperaturephase.
7、Inthemiddleplase,themaximumofNH3-Nincreasingratewas16.5%,themaximumofCODremovalratewas78%,themaximumofproducinggasratewas1.12L/L·d.Themaximuminhightemperaturephasehadnotobviouspreponderancecomparetothemaximuminmiddletemperaturephase.So,38℃wasthebest.WhenthepHofinfulwateri
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