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《陶粒及涂鐵陶粒和涂鋁陶粒對含銅廢水吸附試驗研究》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在學術(shù)論文-天天文庫。
1、陶粒及涂鐵陶粒和涂鋁陶粒對含銅廢水吸附試驗研究中文摘要利用陶粒及涂鐵陶粒和涂鋁陶粒對含銅廢水進行了吸附試驗研究，考察了陶粒及改性陶粒對廢水溶液中銅離子的吸附性能及吸附劑用量、接觸時間、廢水的pH值及含銅廢水初始濃度對銅離子去除率的影響。結(jié)果表明，涂鋁陶粒對含銅廢水的去除率更為顯著，和陶粒相比，去除率可由49%提高至67%。但是由于鐵離子干擾銅離子的測定，涂鐵陶粒的吸附試驗結(jié)果較差。在銅離子濃度為25mg/L的情況下，選擇室溫、pH值為6、接觸時間為40min、吸附劑用量為12.5g/L時可獲得最大去除率。對于不同初
2、始濃度的含銅廢水，去除率較為穩(wěn)定。在試驗范圍內(nèi)，陶粒對銅離子的吸附符合Freundlich方程。本文為陶粒及改性陶粒處理含銅廢水提供了理論依據(jù)和工藝參數(shù)。關(guān)鍵詞:涂鐵陶粒；涂鋁陶粒；含銅廢水；去除率37Studyoncopper-bearingwastewatertreatedbyusingscoriaceramsiteAbstractApplicationofceramsite,ceramsitecoatedwithironandceramsitecoatedwithaluminiumtotreatmentwas
3、studiedrespectively.Moreovertheadsorptionpropertiesandtheeffectsofabsorbentdoes，adsorptiontime,thepHofthewastewaterandinitialconcentrationofthewastewaterwereexplored.Theresultsshowedthatthecapacityofceramsitecoatedwithaluminiumforadsorbingwashigh.Comparedwithc
4、eramsite，theromovalratecanincreasefrom49percentto67percent.However,theceramsitecoatedwithironmaybringaboutironwhichmaydisturbthedeterminationoftheconcentrationofcopper,sothattheeffectontheremovalratecannotreachtheexpectance.Inaddition,whencopperconcentrationwa
5、s25mg/L,atroomtemperature,andwithpHat6，contacttimefor40min,themaximumremovalratioofcoppercanbeachievedbyusingceramsiteandtheceramsitetransformedat12.5g/L.Andeveniftheinitialconcentrationofthecopper-bearingwastewaterisvariable,theremovelrateturnedouttoberathers
6、teady.TheisothermaladsorptionofceramsiteforcopperfitFreundlichequationwithintherangeofcxperimentalconcentration.Theapplicationoftheceramsiteandceramsitetransformedastheabsorbentinwastewatertreatmentprovidesatheoreticalbasisandtechnologicalparametersforthefutur
7、eresearch.Keywords:ceramsitecoatedwithiron；ceramsitecoatedwithaluminium；copper-bearingwastewater；removalrate37目錄中文摘要1英文摘要21緒論51.1水污染現(xiàn)狀51.2銅的性質(zhì)、來源、危害及控制標準61.2.1銅的性質(zhì)61.2.2銅的來源71.2.3銅離子的危害71.2.4銅的控制標準81.3含銅廢水的處理方法81.3.1化學沉淀法81.3.2離子交換法91.3.3生物法101.3.4反滲透法101.3.5離
8、子螯合法111.3.6其它處理方法111.3.6.1電解法111.3.6.2液膜分離法121.3.6.3溶劑萃取法121.4吸附理論121.4.1吸附原理121.4.2影響吸附的因素131.4.3吸附劑概述141.4.4實驗所用吸附劑151.4.5吸附法除銅現(xiàn)狀161.4.6吸附法在污水處理中的應用171.5研究方法與內(nèi)容171.5.1研究方法171.5.2
