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Study On Treating Organic Waste-water By Photoelectrocatalytic Oxidation Pillared Clay Mineral Materials

Posted on:2007-05-31Degree:MasterType:Thesis
Country:ChinaCandidate:T X ShiFull Text:PDF
GTID:2191360218960474Subject:Environmental Engineering
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This paper studied the preparation and the application of Ti/Fe-pillaredrectorite by different condition on the basis of the development and utilizationof the rectorite. And the research offered scientific foundation for therectorite's preparation and application and the treatment of NB waste-water.1. Accorded to the trait of clay minerals, the Ti/Fe-pillared rectoriteenvironment material was prepared by transition metal ion implantationtechnique. And researched the preparation method of Ti/Fe-pillared rectoriteas well as the influential factor.2. The results of FT-IR spectrum(FTIR), X-ray diffraction(XRD) anddifferential thermal(DTA) showed: the interlayer high of Ti/Fe-pillaredrectorite has increased 1.83 nm than Na- rectorite and 0.47 nm thanTi-rectorite, and had higher thermal stability and more hydroxyl than before.3. The research showed: the preliminary concentration, pH, the dosage ofTi/Fe-pillared rectorite et. al influenced the effects of the tretment byphotoirradiated, electrochemical and photoelectrocatalytic. And thephotocataytic, electrochemical and photoelectrocatalytic competence ontreating NB waste-water all can be enhanced. And photoelectrocatalyticcompetence>photocataytic competence>electrochemical competence.4. The experiment showed rebirth by calcine on 500℃is a feasiblemethod for Ti/Fe-pillared rectorite' recycle used.5. The photocataytic, electrochemical and photoelectrocatalytic equationof the NB and CODcr kinetics are all tally with the first reaction kineticsequation. The total reaction rate is decided by inner diffusion.
Keywords/Search Tags:photoirradiated, electrochemical, photoelectrocatalytic, Ti/Fe-pillared rectorite, NB(Nitrobenzene) waste-water, the rate of Nitrobenzene (NB) removal, the rate of CODcr removal
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