納濾膜性能及其在染料分離中的應(yīng)用.pdf

1、天津工業(yè)大學(xué)碩士學(xué)位論文納濾膜性能及其在染料分離中的應(yīng)用姓名：田國軍申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：張宇峰20070101PolysulfonewaschosenastheporoussubstrateforitsexcellentpropertiescheappriceandavailabilityByfabricatinganultrathinfunctionallayeronthepelysuifonesubstratet

2、hroughinterfacialpolymerizationtakingpiperazineasthemonomerinaqueousphase，trimesoylchlorideasthemonomerinorganicphaseandtriethylamineastheprotonacceptorhighperformancenanofiltrationcompositemembraneswereprepared，anditsse

3、paratingbehaviorsandoperationconditionswereinvestigatedsystematicallyTheprocessofcombingultrafiltrationandnanofiltration(UF／NF、totreatdyewastewaterwasdesignedandputintopracticeThepilottestprovedtheprocesssuccessful：thewa

4、stewateraftertreatmentbecamedecontaminate，andtheproductionlineispollutionfreeTheresearchisconductedinthefollowingfouraspects：1Substrateswithdifferentmolecularweightcutoff(MWCO)weresubjectedtocoatingonewith6，000andtheothe

5、rwith20，000，Accordingtoperformancetests，thelatterproducedcompositemembranesfarbetterthantheformer2TheseparatingbehaviorsofthecompositemembranewereinvestigatedsystematicallyusingvarioussaltssuchasNaCI，KCI，Na2S04MgCIz，CaCl

6、2andMgS04thehighestrejectionistoNa2SOthesecondtoMgS04thethirdtoMgCl2andCaCl2，andthelowesttoKCI，NaCI，being99％，98％，70％，60％，15％and10％respectively3MotherliquidofthedyeintermediateWastreatedbythecombiningprocessofUF／NFthecont

7、entofNaCIinthemotherliquidwasefficientlyreducedandtheeffectivecontentsof由畦h蕊崮巴dfrom75％to83％，4WastewaterofthedyeintermediateWastreatedbythecombiningprocessofUF／NFCODaftertreatmentwasaround200，whichmeettheNationaleffluents