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1、SHANDONGUNIVERSITY?。希啤。裕牛茫龋危希蹋希牵佼厴I(yè)論文活性炭吸附印染廢水中結晶紫的研究學院:化學工程學院專業(yè):化學學生姓名:劉希帥學號:0911081025指導教師:遲守娟2013年6月摘要摘要染料廢水的脫色一直是一個難題,方法雖然很多但都具有一定的局限性?;钚蕴渴且环N優(yōu)良的吸附劑,特別適用于染料廢水的脫色。研究染料廢水的活性炭吸附對減少環(huán)境污染,節(jié)約成本,促進活性炭處理染料廢水的發(fā)展具有實際意義。本文以結晶紫水溶液模擬印染廢水,并采用活性炭作為吸附劑對結晶紫溶液進行吸附。研究活性炭在不同條件下對結晶紫的吸附性的影響,活性炭對
2、印染廢水中染色劑的除去效果。在此主要探究初始濃度、吸附時間、溶液pH、吸附溫度對吸附效果的影響。探究表明,隨著時間的增加,活性炭對結晶紫的吸附逐漸達到平衡,吸附率逐漸趨于平緩。當pH逐漸增大時,活性炭吸附率逐漸增大直至pH為弱堿性最大。隨溫度的升高,吸附率的變化不大。關鍵詞:活性炭吸附,印染廢水,結晶紫-I-AbstractAbstractDecolorizationofdyewastewaterhasalwaysbeenadifficultproblem,althoughmanybuthassomelimitations.Activatedc
3、arbonisanexcellentadsorbent,especiallysuitableforthedecolorizationofdyewastewater.Studyofactivatedcarbonadsorptiondyewastewatertoreduceenvironmentalpollution,savecost,promotethedevelopmentofactivatedcarbontreatmentofdyewastewaterhaspracticalsignificance.Basedonthecrystalviol
4、etsolutionsimulatedprintinganddyeingwastewater,andusingactivatedcarbonasadsorbentforadsorptionofcrystalvioletsolution.Researchonactivatedcarbonunderdifferentconditionsontheinfluenceoftheadsorptionofcrystalviolet,activatedcarbonforstainremovaleffectinprintinganddyeingwastewat
5、er.Heremainlytoexploretheinitialconcentration,adsorptiontime,solutionpH,adsorptiontemperatureontheadsorptioneffect.Explorationindicatesthatwiththeincreaseoftime,activatedcarbonadsorptionofcrystalvioletgraduallyachievebalance,adsorptionrategraduallylevelingoff.WhenthepHincrea
6、segradually,activatedcarbonadsorptionrateincreasedgraduallyuntilthepHforweakalkaliisthelargest.Alongwiththetemperatureincreases,changesintherateofadsorptionisnotbig.Keywords:Activatedcarbonadsorption,printinganddyeingwastewater,crystalvioletl-IV-目錄目錄摘要IABSTRACTII目錄III第一章引言11
7、.1選題背景11.2活性炭11.2.1活性炭概述11.2.2活性炭吸附特性21.3印染廢水現(xiàn)狀31.3.1印染廢水來源31.3.2印染廢水的水質31.4活性炭吸附理論41.5結晶紫5第二章實驗72.1實驗原料和藥品72.2實驗儀器102.3實驗內容102.3.1活性炭的研磨102.3.2標準曲線的測定與繪制112.3.3溶液濃度對活性炭吸附的影響122.3.4吸附時間對活性炭吸附的影響12-IV-目錄2.3.5PH對活性炭吸附的影響132.3.6溫度對活性炭吸附的影響132.3.7吸附等溫線13第三章結果與討論153.1溶液初始濃度對活性炭吸附
8、效果的影響153.2吸附時間對活性炭吸附的影響173.3PH對活性炭吸附的影響183.4溫度對活性炭吸附的影響203.5活性炭吸附的不足213.6活性