Cov pa roj carbon activated (AC), nrog rau nws cov qauv ntxeem tau zoo thiab thaj chaw loj tshwj xeeb, tau dhau los ua cov khoom siv tseem ceeb hauv kev kho dej khib nyiab, tshwj xeeb tshaj yog rau kev tshem tawm cov kab mob tshwm sim (ECs) uas cov txheej txheem ib txwm ua tsis tau. Tsis zoo li cov pa adsorbents, AC's hierarchical pores-los ntawm micropores mus rau mesopores- pab kom nws ntxiab ntau yam kuab paug, nrog rau cov kws tshuaj, cov khoom tu tus kheej, thiab kev lag luam micro- cov pa phem, los ntawm kev siv lub cev thiab tshuaj lom neeg.
Hauv cov chaw kho dej khib nyiab niaj hnub no, granular activated carbon (GAC) yog siv dav hauv cov theem tom qab- kho. Nws ua haujlwm los ntawm kev ruaj ntseg - txaj adsorption system, qhov twg cov dej khib nyiab ntws los ntawm ib txheej ntawm GAC, thiab ECs yog adsorbed rau ntawm cov pa roj carbon. Cov txheej txheem no tsis tsuas yog tshem tawm cov tshuaj lom tab sis kuj tseem txhim kho cov dej biodegradability, txo qhov kev pheej hmoo ntawm kev kho cov dej ntws tawm mus rau hauv cov dej ntws los yog rov siv dua rau cov dej. Kev tsim kho tshiab tsis ntev los no tau ua rau kev txhim kho AC hloov kho, xws li nitrogen-doped AC, uas txhim kho qhov muaj peev xwm adsorption rau polar ECs los ntawm kev qhia cov pab pawg ua haujlwm ntawm nws qhov chaw.
Piv nrog rau lwm cov kev kho mob siab heev xws li ozonation los yog membrane filtration, AC adsorption yog tus nqi -zoo, yooj yim rau kev khiav lag luam, thiab ib puag ncig tus phooj ywg, vim nws tsis tsim teeb meem los ntawm - khoom. Ntxiv mus, siv AC tuaj yeem rov tsim dua los ntawm cov txheej txheem thermal lossis tshuaj, txo cov khoom pov tseg thiab txo cov nqi ua haujlwm. Nrog rau kev txhawj xeeb ntau ntxiv txog dej tsis txaus thiab EC muaj kuab paug, AC lub luag haujlwm hauv kev ua kom muaj kev nyab xeeb ntawm dej tau dhau los ua qhov tseem ceeb, ua rau nws yog ib qho tseem ceeb rau kev tswj dej kom ruaj khov nyob rau hauv lub xyoo pua 21st.
Daim duab piav qhia: Lub siab- daws teeb meem duab ntawm granular activated carbon (GAC) nyob rau hauv ib qho ruaj khov - txaj adsorption kem, nrog cov dej khib nyiab ntws los ntawm kab. Daim duab qhia tau hais tias cov qauv ntxeem tau ntawm GAC nyob rau hauv lub tshuab ntsuas hluav taws xob scanning (SEM) ua ib qho khoom siv, qhia txog nws cov microporous thiab mesoporous nta.
https://www.naturecarbon.com/wood-raws li-activated-carbon
