Kev lim dej lim dej

Rau ntau txhiab xyoo pom tau siv los txo cov av, xeb, tshem tawm cov teeb meem thiab lwm yam impurities los ntawm dej. Qhov no yog ua tiav los ntawm kev hla cov dej qias neeg nkag (nqus dej) los ntawm cov lim xov xwm. Raws li cov dej dhau los ntawm kev tshaj tawm, cov impurities tau tuav hauv cov khoom siv lim dej. Nyob ntawm cov impurity impurities thiab cov xov xwm, ntau yam sib txawv ntawm lub cev thiab tshuaj lom neeg mechanisms yog active nyob rau hauv kev tshem tawm yog lub luag hauj lwm rau kev tshem tawm impurities los ntawm dej. Qee cov cuab yeej siv los siv cov txheej txheem no tau hloov pauv ntau lub sijhawm.

Cov txheej txheem ntawm lub cev thiab tshuaj lom neeg uas tshwm sim thaum lub sij hawm pom tau nkag siab zoo dua xyoo dhau los. Cov kev nce qib no tau tso cai rau cov kws kho dej tshwj xeeb txhawm rau txhim kho kev tshem tawm impurities ntawm dej. Cov tshuab lim dej tshem tawm cov khoom me me thiab, vim tias thaj tsam loj ntawm cov lim xov xwm, lawv kuj tuaj yeem siv los tsav cov tshuaj lom neeg uas ua rau tshem tawm ntau yam kab mob.

Adsorption Txoj Cai:

"Adsorption" yog ib qho ntawm feem ntau siv tab sis tsis to taub cov ntsiab lus hauv kev sib tham ntawm kev pom. Adsorption yog hais txog kev tshem tawm cov impurity ntawm cov kua rau saum npoo ntawm cov khoom. Ib tug dej yug los, tshem tawm particle adheres rau ib tug khoom nto thaum adsorption tshwm sim. Adsorption yog adhesion ntawm atoms, ions, los yog molecules los ntawm cov pa roj, kua, los yog khoom mus rau ib qho chaw. Nyob rau hauv cov ntaub ntawv ntawm kev pom dej, cov khoom raug tshem tawm uas muaj nyob rau hauv cov kua yuav ua raws li cov khoom siv xov xwm.

Adsorption txawv ntawm occlusion nyob rau hauv uas occluded hais raug tshem tawm los ntawm ib tug txheej txheem ntws vim hais tias lawv yog, qhov twg occlusion yog tshwm sim los ntawm hais tias loj dhau mus dhau lub cev txwv nyob rau hauv xov xwm. Feem ntau, cov khoom adsorbed raug cuam tshuam los ntawm cov tshuaj lom neeg tsis muaj zog uas tso cai rau lawv ua raws li qhov chaw ntawm cov khoom. Adsorbed hais ua txuas mus rau saum npoo ntawm ib qho kev tshaj tawm, ua ib zaj duab xis ntawm cov khoom tsis muaj zog. Cov impurity molecules yog tuav nyob rau hauv cov pa roj carbon lub hauv pore qauv los ntawm electrostatic attraction (Van der Waals rog) kuj hu ua Chemisorption.

Nyob rau hauv feem ntau daim ntawv thov activated carbon tshem tawm impurities los ntawm cov kua, vapors los yog gas los ntawm adsorption., uas yog ib tug nto tshwm sim uas tshwm sim nyob rau hauv tsub zuj zuj ntawm molecules nyob rau hauv lub internal pores ntawm ib tug activated carbon. Qhov no tshwm sim nyob rau hauv lub pores me ntsis loj dua cov molecules uas yog adsorbed, uas yog vim li cas nws yog ib qho tseem ceeb heev kom phim lub pore loj ntawm activated carbon media nrog cov molecules hais tias koj tab tom sim adsorb. AES muaj kev paub ntau yam hauv kev xaiv cov pa roj carbon zoo rau koj daim ntawv thov.

Granular Activated Carbon feem ntau yog siv rau hauv cov txaj lim ruaj khov. Qee qhov tseem ceeb uas yuav tsum tau xav txog yog xav tau lub sijhawm sib cuag, lim cov nkoj loj, ntim thiab ntim khoom, thiab ntsuas kev nyab xeeb. Tsis tas li ntawd, qhov kev txiav txim siab tseem ceeb ntawm GAC yog hais txog kev rov tsim dua tshiab, hauv qhov chaw lossis tawm ntawm qhov chaw. Feem ntau ntawm kev teeb tsa loj heev nws muaj peev xwm ua tau nyob rau hauv qhov chaw rov tsim dua tshiab, thaum nyob hauv cov chaw me me nws tsis tuaj yeem ua kom rov tsim dua tshiab. Txoj kev ua kom cov pa roj carbon ntau tshaj plaws yog kev ua kom sov. Qhov no yog ua nyob rau hauv peb kauj ruam loj, pib nrog ziab, ces cua sov, thiab thaum kawg residual organic gasification los ntawm oxidising gas (chaw los yog carbon dioxide). Feem ntau hloov Carbon txaj ua haujlwm pheej yig dua li cov tuam txhab Carbon loj nyob hauv Europe.

Nws yog lus dab neeg hais tias Activated Carbon tuaj yeem rov tsim dua los ntawm tsuas yog rov qab ntxuav. Backwash tsuas yog tshem tawm cov khoom daig & rov faib cov Filter Bed. Activated Carbon muaj qee lub neej tom qab uas nws tsis tuaj yeem tshem tawm impurities & li no yuav tsum tau muab tshem tawm hloov.

Cov pa roj carbon activated yog carbonaceous adsorbent nrog lub siab porosity, thiab yog li thaj chaw loj sab hauv. Commercial activated carbon qib muaj thaj tsam sab hauv ntawm 500 txog 1500 m2 / g. Hais txog hom kev thov, peb lojpawg muaj:

Powdered activated carbon; particle loj 1-150 μm
Granular activated carbon, particle loj 0 5-4 hli
Extruded activated carbon, particle loj 0 8-4 hli
Cov pa roj carbon activated tsim nyog muaj cov yam ntxwv tshwj xeeb: xws li thaj chaw loj sab hauv, nplooj siab (nto) cov khoom siv tshuaj lom neeg thiab kev nkag tau zoo ntawm cov pores sab hauv. Qhov pore loj faib yog qhov tseem ceeb heev rau kev siv tswv yim; qhov zoo tshaj plaws haum nyob ntawm cov molecules yuav raug daig, theem (gas, kua) thiab kev kho mob.

Cov qauv pore xav tau ntawm cov khoom siv roj carbon activated yog ua tiav los ntawm kev sib txuas cov khoom siv raw thiab kev ua kom muaj zog.

Cov yam ntxwv ntawm lub cev thiab tshuaj lom neeg ntawm cov pa roj carbon activated tuaj yeem cuam tshuam nws qhov tsim nyog rau daim ntawv thov, thiab muaj ntau qhov kev ntsuam xyuas sib txawv uas pab kwv yees lub peev xwm ua tau zoo. Kev ntsuas tus lej iodine feem ntau tuaj yeem kwv yees ua haujlwm tau zoo thaum cov molecules me me zoo li Dawb Chlorine yuav tsum tau adsorbed. Tannin tus nqi thiab molasses tus naj npawb lossis molasses decolorizing efficiency yog qhov tsim nyog nyob rau hauv kev sim ntsuas qhov ntsuas rau nruab nrab thiab loj-loj molecules lossis thaum me me molecules tam sim no nrog cov molecules loj. Hauv cov ntawv thov uas muaj ntau yam impurities raug tshem tawm, qhov zoo tshaj plaws ntawm cov pa roj carbon activated tsis yooj yim txiav txim siab. Thaum impurities ntau los ntawm me me mus rau qhov loj heev, cov molecules loj feem ntau clog me pores, ua rau lawv nkag mus rau lwm cov molecules.

Raws li tau pom ua ntej, cov Activated carbon Filter ua rau siv cov adsorption tshem tawm qee yam impurities xws li Dawb Chlorine, Odor Removal lossis Organics thiab lwm yam. Cov pa roj carbon activated, tseem hu ua activated charcoal, activated thee, los yog carbo activatus, yog ib daim ntawv ntawm cov pa roj carbon monoxide ua kom tau riddled. nrog me me, tsawg-ntim qhov pores uas ua rau thaj chaw saum npoo muaj rau adsorption lossis tshuaj lom neeg.

Vim nws cov qib siab ntawm micro-porosity, tsuas yog ib gram ntawm cov pa roj carbon activated muaj thaj tsam ntau tshaj 500 m2, raws li kev txiav txim siab los ntawm adsorption isotherms ntawm carbon dioxide roj ntawm chav tsev lossis 0.0 degree kub. Ib qho kev ua kom txaus txaus rau daim ntawv thov siv tau tsuas yog los ntawm qhov chaw siab; Txawm li cas los xij, kev kho tshuaj ntxiv feem ntau txhim kho cov khoom adsorption.

Daim ntawv thov:

Muaj ntau ntau daim ntawv thov rau Activated Carbon Lim. Tsuas yog qee qhov ntawm lawv qhov tseem ceeb tshaj plaws & ntau tau teev tseg hauv qab no.

Kev tshem tawm chlorine dawb
Organic Matter tshem tawm
Kev tshem tawm tsw
Kev tshem tawm Bromate (Tom qab Ozonation ntawm SWRO Permeate)
De-colourisation of Sugar Melt (White Sugar Manufacturing)
De-colourisation ntawm Molasses
Cua Purification
Catalyst cab kuj
Flue gas purification (Dioxin & Mercury Tshem Tawm)