Cov pa roj carbon activated, ua cov khoom siv adsorption nrog cov qauv tsim pore, ua lub luag haujlwm ntawm "tus neeg saib xyuas ib puag ncig" hauv kev kho dej, huab cua huv, kev sib cais tshuaj, thiab lwm yam. Nrog rau thaj chaw tshwj xeeb ntawm ntau pua square metres ib gram, nws tuaj yeem ntes cov hlau hnyav ions hauv dej, cov pa phem hauv huab cua, thiab cov pa phem hauv cov dej khib nyiab xws li daim txhuam cev nqus dej. Txawm li cas los xij, thaum lub peev xwm adsorption ntawm cov pa roj carbon activated ncav cuag saturation, ncaj qha muab pov tseg tsis yog tsuas yog ua rau cov khoom siv pov tseg xwb tab sis kuj muaj cov pa phem uas nws muaj tuaj yeem ua rau muaj pa phem. Yog li ntawd, activated carbon reactivation technology - ib tug txheej txheem uas recovers lub adsorption kev ua tau zoo ntawm saturated activated carbon los ntawm lub cev, tshuaj, los yog biological txoj kev - dhau los ua tus yuam sij rau kev daws qhov "adsorption - pov tseg" qhov teeb meem thiab muab kev txhawb nqa tseem ceeb rau kev lag luam ncig kev lag luam.
Cov "kev rov tsim dua tshiab" ntawm cov pa roj carbon activated pib nrog kev txiav txim siab meej ntawm nws lub xeev adsorption. Cov pores hauv saturated activated carbon yog nyob los ntawm cov pa phem molecules, zoo li thaiv "micro tunnels". Cov txheej txheem tsim dua tshiab muaj xws li thermal regeneration, uas zoo li muab cov pa roj carbon activated "da dej kub": nyob rau hauv kev tiv thaiv roj inert, saturated activated carbon yog rhuab mus rau 800-1000 degree, los ntawm qhov kub thiab txias, cov pa phem molecules decomposed los yog volatilized, thiab cov pores tuaj yeem rov ua dua -}. Txoj kev no muaj kev rov tsim dua tshiab ntawm ntau dua 90%, thiab yog qhov siv thev naus laus zis ntau tshaj plaws hauv kev lag luam, tab sis qhov teeb meem siv hluav taws xob siab ua rau "txoj kev thaiv", ua rau cov kws tshawb fawb tshawb nrhiav ntau lub zog- cov kev daws teeb meem zoo. Nyob rau hauv sib piv, microwave regeneration technology zoo li ib tug "paj phais riam", siv lub siab - zaus vibration ntawm microwaves sai nce qhov kub ntawm cov pa phem molecules thiab ua rau lawv tawm hauv lub qhov hws, nrog rau lub zog noj tsuas yog 1/3 ntawm thermal regeneration, thiab yuav txo tau cov activated carbon vim kub kub.
Cov txheej txheem tshuaj rov tsim dua tshiab yog txoj hauv kev ntse rau "so" cov pa phem. Acid-cov ntsiab lus daws teeb meem, oxidants, thiab lwm yam tshuaj reagents ua xws li "cov tshuaj ntxuav", reacting nrog cov pa phem nyob rau hauv lub pores ntawm activated carbon los ntawm neutralization, oxidation, los yog complexation, hloov lawv mus rau hauv soluble tshuaj ntxuav tawm. Piv txwv li, siv cov tshuaj hydrochloric acid tuaj yeem tshem tawm cov pa roj carbon saturated activated carbon uas tau adsorbed hnyav hlau ions, thaum sodium hydroxide tov tuaj yeem decompose organic pollutants. Txoj kev no yooj yim rau kev khiav lag luam thiab muaj tus nqi qis, tab sis cov seem ntawm cov tshuaj reagents tuaj yeem cuam tshuam rau kev rov siv cov pa roj carbon activated, thiab kev kho cov kua khib nyiab yuav tsum tau tswj nruj me ntsis kom tsis txhob muaj kuab paug ib puag ncig. Txoj kev ua kom muaj roj ntsha yog "ntsuab ntsuab thiab ib puag ncig tus phooj ywg" tus neeg sawv cev, siv cov tshuaj metabolic ntawm cov kab mob kom decompose organic pollutants rau hauv cov pa roj carbon dioxide thiab dej tsis zoo, xws li tso cov pa roj carbon activated rau "ua pa" cua tshiab. Txoj kev no muaj kev siv hluav taws xob tsawg heev thiab yog tus phooj ywg ib puag ncig, tab sis lub voj voog rov tsim dua tshiab, tsim nyog rau kev kho qis -cov pa phem organic.
Nrog rau kev tiv thaiv ib puag ncig nruj zuj zus ntxiv thiab kev txhim kho cov peev txheej rov ua dua tshiab, cov tshuab ua kom carbon reactivation yog tsim los ntawm kev txawj ntse thiab ntau haiv neeg. Cov cuab yeej siv hluav taws xob sib xyaw tshiab, xws li thermal chemical ua ke rov tsim dua tshiab, ua ke siab - kub cua sov nrog cov tshuaj reagent pab, uas tuaj yeem tsis tsuas yog txhim kho cov kev tsim kho dua tshiab tab sis kuj txo qis kev siv hluav taws xob; Thaum electrochemical regeneration technology ua rau oxidation thiab decomposition ntawm cov pa phem ntawm electrode nto los ntawm kev ua ntawm ib qho hluav taws xob teb, ua tiav "regeneration nrog hluav taws xob" thiab kev ua haujlwm yooj yim. Cov kev siv thev naus laus zis no tsis yog tsuas yog txuas ntxiv lub neej kev pab cuam ntawm cov pa roj carbon activated tab sis kuj hloov nws los ntawm "ib qho- siv sijhawm" mus rau "cov peev txheej rov siv tau". Cov ntaub ntawv qhia tau hais tias qhov adsorption kev ua tau zoo ntawm regenerated activated carbon tuaj yeem rov qab mus rau 80% -95% ntawm cov pa roj carbon tshiab, thaum tus nqi tsuas yog 1/3-1/2 ntawm cov pa roj carbon tshiab, txo cov nqi ua lag luam.
Tsav los ntawm "dual carbon" cov hom phiaj, qhov tseem ceeb ntawm cov tshuab ua kom carbon reactivation mus dhau qhov yooj yim cov ntaub ntawv rov qab. Nws tsis tsuas yog txo qhov kev cia siab ntawm cov khoom siv raw xws li ntoo thiab thee, txo cov pa roj carbon emissions hauv cov txheej txheem tsim cov pa roj carbon monoxide, tab sis kuj tsim kom muaj "adsorption - regeneration - re-adsorption" kaw kaw. Nyob rau hauv lub neej yav tom ntej, nrog rau kev loj hlob ntawm kev txiav-ntug technologies xws li nano catalytic regeneration thiab supercritical kua regeneration, activated carbon yuav ua tau "infinite recycling", txhaj tshuaj tas mus li rau ntsuab manufacturing thiab sustainable kev loj hlob. Ib yam li cov qauv pore ntawm cov pa roj carbon activated ua kom muaj kuab paug, cov cuab yeej no tseem ua rau tib neeg lub siab xav txog kev rov ua dua tshiab thiab kev tiv thaiv ecological - nyob rau hauv qhov sib npaug ntawm kev txhim kho thiab kev tiv thaiv ib puag ncig, txhua qhov kev tsim kho tshiab yog kev txhais lus tseeb ntawm lub tswvyim hais tias "cov roob ntsuab thiab cov dej ntshiab muaj txiaj ntsig zoo li kub thiab nyiaj".