UASB工艺处理养殖废水的厌氧氨化及产气率实验研究

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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