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1、摘耍目前,國(guó)內(nèi)外對(duì)無機(jī)改性膨潤(rùn)土在廢水處理領(lǐng)域中的研究以日趨成熟。本文主要是對(duì)無機(jī)土對(duì)無機(jī)重金屬及有機(jī)污染物吸附效果的探究,判定無機(jī)改性土對(duì)何種污染物有更好的吸附效果,并對(duì)改性膨潤(rùn)土吸附處理含Cu2Cf+及苯酚混合廢水進(jìn)行了比較系統(tǒng)的研究。本論文實(shí)驗(yàn)所用的吸附劑是以粉基鋁柱撐劑和鈉基膨潤(rùn)土為原料,研制合成的改性膨潤(rùn)土。以苯酚混合一種重金屬離了(C「+、Cd2+)污染模擬廢水為研究對(duì)象,研究改性劑用量和吸附時(shí)間的增長(zhǎng)對(duì)污染物去除率的影響,以及以混合有苯酚、+和c¥+污染模擬廢水為研究對(duì)象,研究其污染物濃度對(duì)吸附的影響。研究結(jié)果表明:對(duì)Cu2+的吸附的最佳時(shí)間為60
2、min,對(duì)Cd?+的吸附的最佳時(shí)間為240min,同濃度下改性劑用量越大,吸附效果越好。但聚合疑基鋁改性的膨潤(rùn)土對(duì)苯酚的吸附效果很差,說明無機(jī)改性土對(duì)有機(jī)物的吸附效果不好。不建議使用該改性土吸附有機(jī)污染物。以上實(shí)驗(yàn)結(jié)果驗(yàn)證了無機(jī)改性膨潤(rùn)土的吸附特性,結(jié)果發(fā)現(xiàn)無機(jī)改性膨潤(rùn)土對(duì)無機(jī)物的吸附效果比吸附有機(jī)污染物的要好。關(guān)鍵詞:膨潤(rùn)土;改性;吸附;水處理;無機(jī)污染物;重金屬ABSTRACTAtpresent,Inorganicmodifiedbentoniteinthefieldofwastewatertreatmentbecomematurely.Thispaperis
3、toexploretheeffectoftheinorganicsoiladsorptionofinorganicheavymetalsandorganicpollutants,todeterminetheinorganicmodifiedsoilwhatpollutantshaveabetteradsorptioneffect,AndmodifiedsystematicallybentoniteadsorptiontreatmentofCu2+,Cd2+andphenolmixedwastewater.Theadsorbentusedinexperimentso
4、fthisthesisisbasedonhydroxy-aluminumpillaredagentsandsodiumbentoniteasrawmaterial,thedevelopmentofthesynthesisofmodifiedbentonite.Phenolmixedheavymetalions(Cu2+orCd2+)pollutionsimulatedwastewaterastheresearchobject、thegrowthoftheamountofmodifierandadsorptiontimeonthepollutantremoval,a
5、ndmixedphenol,Cu2+andCd2+pollutionsimulatedwastewaterforthestudy,thestudyofpollutantconcentrationsontheadsorptioflTheresultsshowthat:thebesttimeoftheadsorptionofCu2+is60min,andthebestofCd2+adsoiptiontimeis240min,thegreatertheamountofmodifier,thesameconcentration,thebettertheadsorption
6、effect.Buthydroxyl-aluminummodifiedbentonitephenoladsorptioneffectispoor,Thisshowsthattheeffectofmodifiedinorganicsoiladsorptionoforganicmatterisnotgood?Donotrecommendtheuseofthemodifiedsoiladsorptionoforganicpollutants.Theseexperimentalresultsverifythattheadsorptioncharacteristicsoft
7、heinorganicmodifiedbentoniteandfoundthattheadsorptioneffectofinorganicmodifiedbentoniteinorganicbetterthantheadsorptionoforganicpollutants.Keywords:bentonite;modifieation;sorption;watertreatment;organiePollutant;heavymetal目錄第一章引言二本論文主要研究?jī)?nèi)容第二章膨潤(rùn)土的改性及其在環(huán)境保護(hù)中的應(yīng)用研究進(jìn)展一膨潤(rùn)土的概述6(一)膨潤(rùn)土的概念6(二)膨
8、潤(rùn)土的礦物