基于介孔硅和甘蔗渣材料的磷酸根吸附劑制備及其吸附研究.pdf

1、上海師范大學(xué)碩士學(xué)位論文基于介孔硅和甘蔗渣材料的磷酸根吸附劑制備及其吸附研究姓名：陳子彥申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：環(huán)境科學(xué)指導(dǎo)教師：于金蓮20100401中磷酸鹽。在正常p8、50mg／L磷溶液下，O1009改型甘蔗渣吸附劑的吸附容量為213mg／g時(shí)。用脫附研究表明吸附劑在O05M氫氧化鈉溶液反應(yīng)30分鐘內(nèi)進(jìn)行回收；(5)三種改性材料對(duì)磷酸鹽的吸附實(shí)驗(yàn)中，根據(jù)動(dòng)力學(xué)模型研究，偽二階方程是描述吸附過(guò)程最合適的模型，擬和值與實(shí)驗(yàn)數(shù)據(jù)最相符合

2、。Langmuir吸附等溫模型比Freundlich模型更適合。關(guān)鍵詞介孔材料，鑭摻雜，甘蔗渣，磷吸附，富營(yíng)養(yǎng)化ThepreparationandappHeafionofsilicabasedmesoporousmaterialsandmodifiedsugarcanebagasseinphosphateadsorptionAbstractPhosphorusisoneofcriticalnutrientsforbiologicalan

3、dchemicalprocess鶴innaturalwaterbodiesTheexcessofphosphatehasbeenrecognizedasthemainfactorforeuuophicationandalgaebloominsurfacewaters，especiallyinslowmovingriversandlakesPhosphateisusuallyreleasedintoaqueoussystemsfromde

4、tergentpigmentformulationwatertreatmentelectronicindustrymineralprocessingandtheoverapplicationoffertilizersEutrophicationcausedbyhighlevelsofphosphateleadstotheoverproductionandaccumulationofmicroandmacroorganisms，which

5、oandeterioratethewaterqualityofreceivingwaterbodiesandinduceaestheticproblemsRecentlyvarioustechniqueshavebeenusedforphosphateremoval，includingphysicochcrnicalandbiologicalmethodSForexamplechemicalprecipitationwithlime，a