Innovation nyob rau hauv kev kho ntawm Electroplating khib nyiab los ntawm hluav taws xob cua sov Tube Electroplating: Adsorption ntawm Hexavalent Chromium los ntawm Tshuaj yej Residue
Tso lus
Innovation nyob rau hauv kev kho ntawm Electroplating khib nyiab los ntawm hluav taws xob cua sov Tube Electroplating: Adsorption ntawm Hexavalent Chromium los ntawm Tshuaj yej Residue
Tshuaj yej residue kuj siv tau los kho cov dej khib nyiab ntxiv rau deodorizing thiab ua chiv. Tsis ntev los no, Weng Zhihuang, tus xibfwb hauv Department of Civil thiab ecological engineering, Yishou University, Taiwan, Tuam Tshoj, pom tias cov tshuaj yej residue tuaj yeem nqus tau hexavalent chromium thiab lwm yam hlau hnyav hauv cov dej phwj tuaj, uas yog ib qho pheej yig thiab siv tau zoo lom neeg adsorbent. Weng Zhihuang pom nyob rau hauv nws qhov kev sim hais tias qhov "tshuaj yej residue" nyob rau hauv Taiwan yog ib qho adsorbent zoo heev. Nws siv lub tshuab ua kom siab thiab dej deionized kom rov ua dua chav thiab ntxuav cov tshuaj yej nplooj, tshem tawm cov organic acids los ntawm cov tshuaj yej nplooj, thiab tom qab ntawd qhuav thiab av hmoov los kho cov dej khib nyiab.
Nws tau tshaj tawm tias electroplating, hlau ua, tanning, thiab hluav taws xob factories yog nquag tsim cov dej khib nyiab ntau ntawm chromium. Txoj kev "txo nag lossis daus" ib txwm siv rau kev kho mob ua rau muaj cov sludge ntau. Txawm li cas los xij, adsorbents nrog "porous" yam ntxwv xws li cov pa roj carbon activated yog kim thiab cov txheej txheem rov tsim dua tshiab yog cumbersome.
Weng Zhihuang txoj kev tshawb fawb pom tias qhov siab tshaj plaws adsorption muaj peev xwm ntawm dub tshuaj yej nplooj hmoov yog siab li 117mg / g, uas yog zoo dua li ib txwm tshuaj kho cov neeg ua hauj thiab txawm zoo dua li cov lag luam activated carbon thiab nano adsorption cov ntaub ntawv. Weng Zhihuang tau hais tias cov tshuaj yej residue yog cov khoom siv hauv zos uas yooj yim kom tau txais thiab muaj ntau yam zoo ntawm kev ua cov pa roj carbon activated, ua rau nws yog "cov khoom siv hnub qub" rau kev kho dej khib nyiab yav tom ntej. Magnesium alloys tau txais kev saib xyuas thoob plaws hauv ntau lub teb vim lawv lub zog tshwj xeeb, cov qauv tshwj xeeb, thiab cov khoom siv kho tshuab zoo heev. Txawm li cas los xij, qhov tsis xws luag ntawm cov tshuaj lom neeg ua haujlwm siab thiab tsis zoo corrosion kuj txwv nws daim ntawv thov ntau yam. Nrhiav txoj kev kho kom haum rau saum npoo tau dhau los ua qhov kev zam. Daim ntawv no qhia txog qhov kev tshawb fawb ntawm magnesium alloy nto tiv thaiv txheej hauv tsev thiab txawv teb chaws, feem ntau suav nrog cov tshuaj hloov pauv tshuaj, anodic oxidation coatings, hlau coatings (plating), laser deg alloy hloov kho coatings, vapor deposition coatings thiab sol gel coatings.
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