Activated carbon yog ib qho ntawm cov khoom siv dav siv hauv kev kho dej. Nws yog ib yam ntawm cov pa roj carbon monoxide tshwj xeeb kho nrog suav tsis txheeb cov pores zoo thiab thaj chaw loj. Qhov chaw ntawm txhua gram ntawm cov pa roj carbon activated yog 500 square metres ~ 1500 square meters.
Cov pa roj carbon activated muaj zog lub cev adsorption thiab tshuaj adsorption zog, nws kuj muaj detoxification nyhuv. Cov nyhuv detoxification yog los ntawm kev siv nws thaj chaw loj rau adsorb cov tshuaj lom los ntawm cov pa roj carbon activated, yog li nws tuaj yeem tiv thaiv kev nqus ntawm cov tshuaj lom.
Cov pa roj carbon activated feem ntau muab faib ua cov hmoov ua kom cov pa roj carbon monoxide thiab granular activated carbon, feem ntau yog siv ncua kev sib cuag adsorption rau kev kho dej khib nyiab. Tom qab siv txoj kev pom-adsorption rau kev kho dej khib nyiab.
Muaj ob hom kev kho mob, ib qho yog siv cov pa roj carbon activated los kho cov kev kho mob thib ob ncaj qha, lwm qhov yog siv cov pa roj carbon activated los adsorb cov kev kho mob thib ob tom qab tshuaj xyuas kom meej, tshem tawm cov as-ham thiab pom.
https://www.naturecarbon.com/coal-based-activated-carbon/activated-charcoal-powder.html
Cov pa roj carbon activated muaj cov txiaj ntsig zoo hauv kev kho cov dej phwj tuaj
1. Cov pa roj carbon activated muaj cov yam ntxwv zoo adsorption rau cov organic teeb meem hauv dej. Vim tias cov pa roj carbon activated muaj cov qauv zoo tsim cov pore zoo, nws muaj peev xwm adsorption muaj zog rau cov kuab paug organic yaj hauv dej, xws li benzene compounds, phenolic compounds, roj av thiab roj av, thiab nws muaj cov txiaj ntsig zoo tshem tawm ntawm cov pa phem organic. Nws yog ib qho nyuaj rau tshem tawm los ntawm txoj kev lom neeg thiab lwm yam kev siv tshuaj, xws li xim, tsw, methylene xiav surfactants, tshuaj tua kab, tshuaj tua kab, tshuaj tua kab, tshuaj detergents, hluavtaws dyes, amine compounds thiab ntau yam hluavtaws organic tebchaw.
2. Cov pa roj carbon activated muaj qhov hloov tau zoo rau kev hloov pauv hauv dej zoo, dej kub thiab dej kom muaj nuj nqis. Rau tib cov pa phem cov pa phem, cov pa roj carbon activated muaj cov txiaj ntsig zoo tshem tawm ntawm qhov siab lossis qis qis.
3. Cov cuab yeej siv cov pa roj carbon activated dej nyob hauv thaj chaw me me, nws yooj yim rau kev tswj tau thiab muaj kev ua haujlwm yooj yim thiab kev tswj xyuas.
4. Cov pa roj carbon activated kuj muaj peev xwm adsorption muaj zog rau qee cov hlau hnyav. Xws li mercury, lead, hlau, npib tsib xee, chromium, zinc, cobalt, thiab lwm yam. Yog li ntawd, activated carbon kuj muaj txiaj ntsig zoo rau kev kho cov dej khib nyiab electroplating thiab smelting cov dej khib nyiab.
5. Saturated activated carbon tuaj yeem rov qab siv dua tom qab kev tsim dua tshiab yam tsis muaj kev ua qias tuaj.
6. Nws tuaj yeem rov qab tau cov khoom muaj txiaj ntsig zoo, xws li kho cov dej khib nyiab phenol-concentration, thiab rov ua dua sodium phenolate tom qab rov tsim dua nrog alkali.
Cov kev kho tshwj xeeb ntawm activated carbon rau cov dej khib nyiab
Wastewater activated carbon treatment yog ib txoj hauv kev kho cov dej khib nyiab adsorption.
Nws yog ib txoj hauv kev los tshem tawm ntau yam kuab paug hauv dej khib nyiab los ntawm kev siv cov khoom ntawm cov pa roj carbon activated xws li lub cev adsorption, tshuaj adsorption, oxidation, catalytic oxidation thiab txo.
Piv txwv li, hmoov activated carbon kho txoj kev, uas tseem hu ua bio-physical kho txoj kev, pub aeration txoj kev. Nws yog muab cov hmoov activated carbon rau hauv lub aeration tank, uas tsis tsuas yog siv tag nrho cov khoom siv kho dej khib nyiab, tab sis kuj txhim kho cov nyhuv kho.
Kev tshem tawm cov pa phem los ntawm txoj kev no feem ntau suav hais tias yog kev sib koom ua ke ntawm adsorption thiab microbial oxidative decomposition. Qhov loj ntawm micropores ntawm cov pa roj carbon activated adsorbs oxygen nyob rau hauv cov organic teeb meem thiab cov dej khib nyiab, nws muab ib tug siab concentration ntawm nutrient qhov chaw rau kev loj hlob thiab kev loj hlob ntawm cov kab mob, thiab cov enzymes thiab coenzymes tsim nyob rau hauv tus txheej txheem ntawm microbial metabolism yog adsorbed thiab enriched nyob rau hauv lub micropores ntawm activated carbon. Tsis tas li ntawd, lub sij hawm sib cuag ntawm cov kab mob thiab cov organic teeb meem ntawm cov carbon yog ntev dua, uas ua rau cov organic teeb meem uas nyuaj rau degrade kuj yuav decomposed los ntawm lom oxidation.
Txoj kev kho cov hmoov activated carbon feem ntau suav nrog peb kauj ruam:
Kev sib xyaw khaus, kom cov hluav taws xob tawg sai sai rau hauv cov dej phwj tuaj.
Tiv tauj adsorption thiab oxidation, thiaj li hais tias cov pa roj carbon raug tshem tawm hauv cov dej phwj tuaj rau kev ncua adsorption thiab oxidation.
Cov kua-khoom sib cais, nyob rau hauv uas carbon yog sib cais los ntawm cov effluent thiab ces regenerated.
Kev siv tshuab ntawm hmoov activated carbon rau kev kho dej khib nyiab yog ib-theem kev sib cuag, uas yog, sib tov, tiv thaiv kev sib cuag, nag lossis daus yog ua tiav nyob rau hauv tib lub cuab yeej, thiab lub sijhawm nyob ntawm cov pa roj carbon activated hauv cov cuab yeej yog 2 ~ 5 hnub. Qhov no pab txhawb kev ua haujlwm microbial thiab txhim kho cov txiaj ntsig kev kho mob.
Ntxiv qee qhov ntawm cov hmoov ua kom cov pa roj carbon monoxide rau hauv lub tank zom zom tuaj yeem ua kom cov sludge nag lossis daus, purify lub supernatant rov qab mus rau cov dej kho dej, thiab txhim kho kev ua haujlwm ntawm kev kho dej. Tsis tas li ntawd, nws tseem tuaj yeem txhawb nqa qhov decomposition ntawm sludge solids, tshem tawm cov ntxhiab tsw phem, thiab txhim kho lub peev xwm ntawm cov khoom siv.
Kev siv cov activated carbon hauv cov dej phwj tuaj
Activated carbon kho COD hauv dej khib nyiab
Cov pa roj carbon activated muaj cov nyhuv adsorption ntawm cov organic teeb meem nrog cov txheeb ze molecular pawg tsawg dua 3000, tshwj xeeb tshaj yog 500 ~ 1000. Ntawm cov txheej txheem kev kho mob siab heev los txhim kho cov dej zoo, cov pa roj carbon activated yog ib txoj hauv kev zoo tshaj plaws los txhim kho cov txheej txheem kev kho mob kom tshem tawm cov pa phem hauv dej, thiab cov pa roj carbon activated muaj zog hloov pauv hauv dej kom muaj nuj nqis, dej. zoo thiab dej kub hauv kev siv.
Cov ntaub ntawv qhia tau hais tias rau cov dej khib nyiab hauv tsev nrog COD concentration ntawm 50.04mg / L, thaum pH tus nqi yog 3 thiab lub sij hawm adsorption ntawm activated carbon yog 1h, COD concentration ntawm cov dej khib nyiab kho yog 12.41 mg / L, thiab tus nqi tshem tawm. mus txog 78.6 feem pua.
Activated carbon kho cov dej khib nyiab uas muaj mercury
Hauv kev lag luam chlor-alkali, mercury yog siv los ua cathode electrode los tsim cov roj chlorine thiab caustic soda. Kev lag luam synthesis ntawm polyvinyl chloride, acetaldehyde, thiab vinyl acetate txhua tus siv mercury ua ib qho catalyst. Kev lag luam khoom siv hluav taws xob kuj tseem siv tau rau hauv mercury, yog li cov kev lag luam no txhua tus emit mercury uas muaj mercury pov tseg dej.
Cov pa roj carbon activated tuaj yeem nqus cov mercury zoo hauv cov dej khib nyiab. Qee lub tuam txhab tau siv txoj kev no los kho cov dej khib nyiab uas muaj mercury, tab sis txoj kev no zoo dua rau kev kho cov dej khib nyiab uas muaj mercury tsawg. Thaum cov mercury concentration hauv cov dej khib nyiab siab heev, kev kho thawj zaug tuaj yeem ua ntej kom txo cov mercury concentration hauv cov dej khib nyiab ua ntej adsorption los ntawm activated carbon.
Lub adsorption thiab tshem tawm lub peev xwm ntawm cov pa roj carbon activated rau cov organic mercury yog siab dua li ntawm inorganic mercury. Lub adsorption ntawm mercury ntawm cov pa roj carbon activated yuav ua rau kom tshem tawm tus nqi thaum tus nqi pH qis dua.
Activated carbon kho cov dej khib nyiab uas muaj phenol
Phenol-muaj cov dej khib nyiab tau dav los ntawm cov nroj tsuag petrochemical, cov nroj tsuag yas, cov nroj tsuag hluavtaws fiber ntau, cov nroj tsuag coking, cov nroj tsuag textile, cov nroj tsuag nitrogen, thiab cov nroj tsuag refinery thiab tshuaj. Cov pa roj carbon activated muaj kev ua haujlwm zoo rau phenol thiab tuaj yeem kho cov dej khib nyiab uas muaj phenol.
Rau siab-concentration phenol-muaj cov dej khib nyiab, thaum lub phenol concentration nyob rau hauv lub influent yog 1950 mg / l, phenol concentration nyob rau hauv cov effluent yuav raug txo kom tsawg tshaj li 0.1 ml los ntawm ib tug peb-kem series-txuas qhib qhib. carbon adsorption kem, tab sis cov adsorption kem yuav phenolic nyob rau hauv ib lub sij hawm luv luv. nkag mus. Yog li ntawd, activated carbon yog tsim nyog rau kev kho mob ntawm nruab nrab thiab tsawg concentrations phenol-muaj cov dej khib nyiab.
