幾種飼料添加劑在溶液中吸附和堆肥過程中降解轉(zhuǎn)化研究.pdf

1、合肥工業(yè)大學(xué)碩士學(xué)位論文幾種飼料添加劑在溶液中吸附和堆肥過程中降解轉(zhuǎn)化研究姓名：李柯申請學(xué)位級別：碩士專業(yè)：市政工程指導(dǎo)教師：胡真虎201204TheadsorptioninaqueoussolutionandtransformationincompostingofseveralfeedadditivesABSTRACTToday，avarietyofgrowth—promotingadditiveshavebeenusedwidely

2、inlargescalelivestockandpoultryindustryMostoftheseadditivesareexcretedintheformoftheiroriginalproductsandentertheenvironmentthroughavarietyofwaysThiswillbringriskstotheecologyoftheenvironmentInthisstudy，theadsorptionofte

3、tracyclineandroxarsonebyanaerobicgranularsludgeandthetransformationofcarbadoxinthecompostingwereinvestigatedThemainconclusionswereobtainedasfollows：(1)AdsorptionoftetracyclinebyanaerobicgranularsludgewasinvestigatedThere

4、sultsshowedthattheadsorptionoftetracyclinebyanaerobicgranularsludgewasdividedintotwostages，theearlystageofthefastadsorptionandthelaterstageoftheslowabsorptionFastadsorptionwasmainlyfortheouterparticleadsorption，whilelate

5、radsorptionwashappenedfromoutsurfacetotheinternalintheparticleTheisothermwasfitwellwiththeLangmuirequationTheadsorptionwasaspontaneousandendothermicprocess(2)Competitiveadsorptionoftetracyclineandroxarsonebyanaerobicgran

6、ularsludgewasinvestigatedTheresultsshowedthattheadsorptionremovaloftetracyclineandroxarsonewereefficientbyanaerobicgranularsludgeTheadsorptionisothermofroxarsonewasfitwellwiththeLangmuirequation，whilethatoftetracyclinewa

7、sfitwellwiththeFreundlichequationTheadsorptionkineticsoftetracyclinecanbewelldescribedbysecondorderequationAdsorptionofroxarsoneandtetracyclinebyanaerobicgranularsludgewerespontaneousandendothermicprocess(3)Thedegradatio

8、nandtransformationofcarbadoxintheaerobiccompostingprocesswasinvestigatedTheresultsshowedthatthehalflifeofcarbadoxwasapproximately18d，lOdand19dasC／Nat15，25and40，respectivelyTherewasnoobviousinfluenceonthemoisturecontent，p