Activated carbon lim dej ua si lub luag haujlwm tseem ceeb hauv kev kho dej demineralized, ua kom muaj kev ruaj ntseg thiab kev ua neej nyob ntawm cov khoom siv desalination downstream (xws li rov qab osmosis membranes thiab ion exchange resins).
I. Core Functions
1. Kev tshem tawm cov organic teeb meem zoo heev
Cov pa roj carbon activated, nrog rau nws qhov loj ntawm thaj chaw tshwj xeeb thiab ntau cov qauv microporous, tuaj yeem tshem tawm cov organic teeb meem zoo, qee qhov colloidal organic teeb meem, xim, thiab tsw ntxhiab ntawm dej los ntawm lub cev adsorption.
Yog tias cov khoom siv organic no nkag mus rau cov txheej txheem tom ntej, lawv yuav paug cov ion pauv resins, txhaws rov qab osmosis membrane pores, ua rau txo qis desalination tus nqi, nce siab sib txawv, thiab ntau zaus ntawm tshuaj ntxuav.
2. Kev tshem tawm tag nrho ntawm cov chlorine seem (Oxidizing tshuaj)
Qhov no yog nws lub luag haujlwm tseem ceeb hauv kev kho dej demineralized. Cov pa roj carbon activated tuaj yeem raug txo qis cov tshuaj tiv thaiv nrog cov tshuaj chlorine residual, hloov mus rau hauv cov tshuaj tsis muaj tshuaj chloride ions; cov tshuaj tiv thaiv sai thiab meej.
Cov nyhuv tiv thaiv: Rov qab osmosis daim nyias nyias (tshwj xeeb tshaj yog polyamide puas daim nyias nyias) thiab ion pauv resins yog cov rhiab heev rau oxidants. Txawm tias muaj cov tshuaj chlorine seem tuaj yeem ua rau irreversible oxidative degradation ntawm cov ntaub ntawv membrane thiab kev puas tsuaj rau tus ntoo khaub lig- txuas cov qauv ntawm cov resin. Cov lim dej ua kom cov pa roj carbon activated ua "tus neeg saib xyuas" los tiv thaiv cov khoom kim heev.
3. Txhim kho cov dej noj kom zoo thiab txo tus nqi SDI
Thaum adsorbing organic teeb meem, lub tshuab txais carbon txaj kuj muaj qee yam kev pom zoo, cuam tshuam qee qhov teeb meem zoo. Working in conjunction with multi-media filters, it further reduces the sludge density index of the water, providing better feed water conditions for the reverse osmosis membrane.
II. Key Design Parameters
Kev tsim cov lim dej ua kom cov pa roj carbon monoxide yuav tsum sib npaug adsorption efficiency, siab poob, kev khiav hauj lwm lub voj voog, thiab cov nqi peev.
1. Lim Flow Rate
Ntau yam li qub: 8-12 m/h (xws li raws li qhov chaw seem ntawm lub tank hla ntu). Tsis tshua muaj tus nqi txaus ua rau kev siv cov cuab yeej siv tsawg thiab kev loj hlob ntawm cov kab mob yooj yim; siab dhau heev lawm ua rau lub sij hawm luv luv, adsorption tsis tiav, thiab nce siab poob, uas yuav ua rau carbon particle coj los yog "carbon migration." Lub sijhawm tiv tauj txaus yog qhov tseem ceeb thaum lub hom phiaj tseem ceeb yog tshem tawm cov tshuaj chlorine uas seem.
2. Lub Sijhawm Sib cuag (Lub Sijhawm Ncauj Ncauj Sib cuag - EBCT)
Feem ntau, Ntau dua lossis sib npaug li 6 feeb yog xav tau. Rau cov dej uas muaj cov organic loads siab, qhov no tuaj yeem txuas ntxiv mus rau 10-15 feeb. EBCT=Activated carbon bed height (m) / Flow rate (m/h) × 60. Txaus EBCT yog ib qho tseem ceeb txiav txim siab kom ua tiav qhov txo qis ntawm cov tshuaj chlorine seem thiab zoo adsorption ntawm cov organic teeb meem.
3. Activated Carbon Bed Qhov siab
Ntau yam: 1.5-2.5 meters. Ib lub txaj uas yog ntiav heev yog nquag ntws channel luv-circuiting, ua rau siv tsawg thiab muaj peev xwm nkag mus ntxov ntxov; ib lub txaj uas tob heev ua rau cov khoom siv tsis tsim nyog qhov siab thiab kev nqis peev thawj zaug. Nws yuav tsum tau txiav txim siab raws li tus nqi ntws thiab EBCT.
4. Ua kom muaj cov pa roj carbon monoxide thiab kev xaiv Parameter
Hom kev nyiam tshaj yog thee -raws li los yog txiv maj phaub plhaub granular activated carbon rau kev kho dej. Txiv maj phaub plhaub tshuab txais carbon muaj zog dua thiab tsim micropores, ua rau muaj kev ua tau zoo dua, tab sis nws kim dua.
Tus nqi iodine: qhia txog kev nplua nuj ntawm micropores; Kev pom zoo ntau dua lossis sib npaug li 900 mg / g.
Methylene xiav tus nqi: Reflects lub peev xwm adsorption ntawm mesoporous nto thiab yog ib tug siv rau tshem tawm loj molecular organic teeb meem.
Lub zog loj dua lossis sib npaug li 90% txo qis kev ua haujlwm.
Particle loj: Feem ntau siv yog 8 × 30 mesh (0.6-2.36mm) los yog 12 × 40 mesh. Uniform particle loj txo lub taub hau poob thiab tiv thaiv luv luv circuits.
Activated Carbon Filter - Xov xwm - Henan Binyuan Environmental Protection Technology Co., Ltd
5. Kev ua haujlwm tsis zoo
Backwash flow rate: 12-15m / h, ua rau lub txaj nthuav dav ntawm kwv yees li 30% -50%.
Backwash frequency: Determined based on influent turbidity and pressure difference (usually >0.05-0.1MPa), feem ntau ib zaug txhua 1-3 hnub.
Kev khiav hauj lwm siab poob: Thawj qhov siab poob ntawm lub txaj huv yuav tsum tsawg dua 30kPa.
III. Tsim kev xav thiab ceev faj
1. Kev tiv thaiv ua ntej-filter: Thaum cov dej tsis zoo, lub tshuab lim dej (xws li ntau-} lim xov xwm) yuav tsum tau teeb tsa ua ntej lub tshuab lim carbon lim dej kom tshem tawm cov khib nyiab, tiv thaiv kev txhaws sai ntawm cov pa roj carbon monoxide, thiab txo lub voj voog rov qab.
2. Kev Tiv Thaiv Kev Loj Hlob ntawm Microbial: Cov pa roj carbon activated yog qhov chaw yug me nyuam rau cov kab mob. Tus qauv tsim yuav tsum xav txog qhov muaj peev xwm ntawm lub sijhawm siab -kub dej kub (Ntau dua lossis sib npaug li 80 degree) ua kom tsis muaj menyuam lossis ua kom tsis muaj menyuam, thiab xyuas kom cov dej tsis muaj kev cuam tshuam. Kev tiv thaiv dej los yog tshuaj tua kab mob yuav tsum tau ua thaum lub kaw lus kaw.
3. Kev saib xyuas thiab hloov pauv:
Ib qho online residual chlorine saib yuav tsum tau teeb tsa ntawm lub qhov hluav taws xob kom ntseeg tau tias cov tshuaj chlorine seem hauv cov dej ntws tawm yog "zero." Qhov no yog qhov qhia ncaj qha tshaj plaws ntawm seb qhov kev tiv thaiv puas ua tsis tiav.
Tsis tu ncua kuaj cov kua dej COD lossis TOC txhawm rau txheeb xyuas cov teebmeem kev tshem tawm cov organic.
Cov pa roj carbon activated muaj qhov muaj peev xwm adsorption tsawg thiab kev pabcuam dav dav ntawm 1-3 xyoos (nyob ntawm cov dej muaj txiaj ntsig zoo thiab kev ua haujlwm). Nws yuav tsum tau hloov los yog regenerated tom qab adsorption saturation.
4. Uniformity ntawm dej faib thiab sau: High- zoo perforated daim hlau + lub kaus mom dej los yog cov tshuaj ntsuam tube dej distributors yog siv los xyuas kom meej cov dej txaus faib, tsis txhob "deviation" los yog "channeling", thiab siv tag nrho cov pa roj carbon txheej.
