改性鋼渣去除廢水中磷酸鹽的試驗(yàn)研究.pdf

1、武漢理工大學(xué)碩士學(xué)位論文改性鋼渣去除廢水中磷酸鹽的試驗(yàn)研究姓名：佘健申請學(xué)位級別：碩士專業(yè)：環(huán)境工程指導(dǎo)教師：李曄20071101AbstractWaterisavaluableresourcewhichhumanreliesuponindispensablyThewaterofperpersonwasquitescarce，andhasbeenpollutedquiteseriouslyinourcountlyParticularly

2、lotsofwastewater謝mnitrogenandphosphorushasbeendischargedintiversandlakesdirectlyinrecentyears，whichusuallycausingeutrophietionandleadingtothelarge—scalewaterbloomandredtideinmajorityoflakesandcoastalwatersofChinathewater

3、wasseriouslypollutedandthesustainabledevelopmentofeconomywasalsestrictedThus，theessentialapproachtosolvetheproblemofwaterpollutionandnourishmentisseekinganddevelopingsomesuitableinnovativeprocesseswhichcouldprovidemulti—

4、benefitincludinghi曲efficiencylowenergyandlowoperationalfeeSteelslagisonekindofmetallicoxidesolidwastewhichcontainsCa，Mg，A1，F(xiàn)e，SiIthasmultiaperture，bigsuperficialareaandfairlygoodadsorptionftmctionAccordingtostatistics，it

5、willbring15％20％steelslagwhenproducedItsteelRecentlythesteelslagismainusedforaspectssuchasmetallurgicalindustry，buildingmaterial，highwaysbuild，agricultureandthetheutilizationmteofitonlynearly10％whichmuchlowerthandeveloped

6、countriesatpresentInrecentyears，theenvironmentalvalueofsteelslagbeingregardedhighlygraduallytherehavemoreandmoreresearchreportsonthesteelslagprocessingwastewaterDevelopslagapplicationintreatingwastewaterwouldbeonekindofe

7、conomyandeffectivemethodwhichaccordingwithtoabolishbringinguselessprincipleundercontrol，hasgreatsignificancoThethesisstudyofthesteelslagwhichproducedbyEZhouCityironandsteelcompany，itanalysestheoptimumconditionoftreatingt

8、hewastewaterbysteelslagandproposespertinentsolutionsformodified，reseachthethebesttechnologicalconditionsofmodified；studyedtheoptimumconditionoftreatingthewastewaterbymodifiedsteelslagandthehighpointeffectiveofremovingpho