Kev daws cov dej khib nyiab ntawm cov ntawv ntim
Kev lag luam thoob ntiaj teb ntim khoom lag luam xav tias yuav ncav cuag li $ 150 nphom hauv xyoo 2024 thiab tau kwv yees tias yuav loj hlob mus txog $ 270 nphom los ntawm 2030, nrog rau kev loj hlob txhua xyoo ntawm kwv yees li 6% - 8% nyob rau lub sijhawm no. Lub zog tsav tsheb tseem ceeb ntawm kev ua lag luam yog los ntawm kev loj hlob ntawm cov pej xeem, kev hloov kho dua tshiab, thiab kev paub txog kev nyiam huv. Kev lag luam loj zuj zus ntxiv, thiab Asia - cheeb tsam Pacific tau dhau los ua lub cav loj hlob.
Kev lag luam ntim thoob ntiaj teb tau loj hlob tsis tu ncua nyob rau xyoo tas los no, feem ntau yog tsav los ntawm kev nthuav dav ntawm e- kev lag luam logistics, nce kev thov rau zaub mov thiab dej haus, thiab kev txhawb nqa kev siv cov khoom siv rov ua dua los ntawm ib puag ncig cov cai. Nrog rau kev txhawb nqa thoob ntiaj teb ntawm kev txwv cov yas thiab txwv tsis pub, ntim cov duab los qhia, ua lwm txoj hauv kev ntsuab, ua kom nws nkag mus rau ntau qhov kawg - siv cov haujlwm.
I. Cov ntaub ntawv tshwj xeeb ntawm kev ntim cov ntawv kho dej khib nyiab
Tianjin Jinghai County Chenguantun Daim Ntawv Zeb Tshiab IC Tank Project
I) Lub Npe Lub Npe: Tianjin Jinghai Lub Nroog Chenguantun Daim Ntawv Zeb Tshiab IC Tank Project Cov Khoom Siv Xaiv: Cov Khoom Siv Hauv Tank Anaerobic
II) Kev phom sij ntawm cov dej khib nyiab:
Cov dej khib nyiab los ntawm cov ntawv zeb muaj cov ntim loj, cov xim siab, cov ntsiab lus tshem tawm siab, cov organic teeb meem siab, cov khoom sib xyaw ua ke, thiab hauv daim ntawv- ua cov txheej txheem, cov tshuaj ntxiv tsis tuaj yeem khaws cia rau hauv daim ntawv thiab poob rau hauv cov dej khib nyiab, uas ua rau muaj cov COD cov cim thiab cov yam ntxwv muaj kuab paug. Yog li ntawd, nws yog ib qho nyuaj rau - - kho cov dej khib nyiab. Cov ntoo thiab straw cov ntaub ntawv siv los ntawm cov ntawv zeb hauv cov txheej txheem tsim khoom, tom qab siab -kub ua noj, cov ntawv dub kua dej tawm kuj muaj cov pa phem, ntxhiab tsw phem, thiab muaj kuab paug ib puag ncig.
III) Project Overview:
Vim tias qhov kev thov nthuav dav ntawm Chenguantun Paper Mill hauv Tianjin, tus neeg siv khoom tau teev tseg kom yuav tsum tau ntxiv cov khoom siv tshiab anaerobic tank ua. Raws li cov ntaub ntawv muab dej pov tseg zoo, lub rooj cob qhia cov dej tuaj COD Tsawg dua lossis sib npaug li 1000mg / L.
IV. Kev piav qhia ntawm Guangbo Environmental's Anaerobic Tank Equipment:
Guangbo Environmental muaj ib tug xov tooj ntawm kev inventions thiab utility qauv patents. Tshwj xeeb tshaj yog nyob rau hauv anaerobic kho technologies xws li IC anaerobic tso tsheb hlau luam thiab UASB anaerobic reactors, peb muaj ib tug loj npaum li cas ntawm kev tsim kho thiab tau subcontracting IC anaerobic tank ua cov kev pab cuam rau thoob ntiaj teb thiab domestic zoo-paub ib puag ncig tiv thaiv tuam txhab uas muag, uas muab peb ib tug tshwj xeeb kom zoo dua nyob rau hauv IC anaerobic comprehensive technology thiab kev ua tau zoo.
II. Txheej txheem cej luam ntawm cov neeg siv khoom ntim cov ntawv ntim dej khib nyiab
Kev lag luam ntim ntawv, raws li ib qho ntawm cov kev lag luam hnyav hnyav, tau ua rau muaj kev puas tsuaj loj rau ib puag ncig vim cov dej khib nyiab tsim thaum lub sijhawm tsim khoom. Nrog rau cov kev cai ib puag ncig nruj zuj zus thiab kev paub txog pej xeem kev tiv thaiv ib puag ncig, ntau thiab ntau cov ntawv ntim khoom lag luam pib muab qhov tseem ceeb rau kev kho dej khib nyiab thiab nrhiav kev kho dej khib nyiab. Cov neeg siv khoom no suav nrog cov ntawv me me thiab nruab nrab- cov ntawv mills nrog rau cov ntaub ntawv loj thiab cov ntawv tsim khoom. Lawv cia siab tias yuav ua tiav raws li kev tso tawm lossis cov peev txheej siv cov dej khib nyiab los ntawm cov thev naus laus zis kho dej pov tseg, yog li txo lawv qhov cuam tshuam rau ib puag ncig thiab txhim kho lawv lub luag haujlwm hauv zej zog thiab kev sib tw.
Cov duab ntawm cov ntawv tsim khoom rau kev ntim khoom
III. Kev kho cov dej khib nyiab ntawm cov ntawv ntim cov dej khib nyiab
Ntim cov ntawv pov tseg feem ntau yog los ntawm ntau theem ntau lawm xws li pulping, bleaching, papermaking, raw khoom npaj, thiab bleaching. Nws muaj pes tsawg leeg yog complex thiab cov pa phem load yog siab. Tshwj xeeb, ntim ntawv cov dej khib nyiab feem ntau suav nrog cov hauv qab no:
1. Ua noj cov dej khib nyiab (dub cawv)
Cov dej khib nyiab ua noj yog ib qho ntawm cov dej khib nyiab tseem ceeb tsim thaum lub sij hawm pulping thiab tseem hu ua dej cawv dub. Thaum lub sij hawm pulping txheej txheem, cog raw cov ntaub ntawv (xws li ntoo los yog nyom) yog muab rho tawm nrog fibers los ntawm kev ua noj, thiab cov dej khib nyiab uas tshwm sim yog dej cawv dub. Cov pa phem uas muaj nyob rau hauv cov dej cawv dub rau ntau tshaj 90% ntawm tag nrho cov pa paug tawm hauv kev lag luam papermaking, thiab nws muaj siab concentration thiab nyuaj rau degrade. Cov khoom tseem ceeb ntawm cov cawv dub muaj xws li lignin, pentose, thiab tag nrho alkali. Lignin yog ib yam uas tsis yog- cov tshuaj lom neeg muaj pes tsawg leeg siv los ua cov khoom siv tshuaj lom neeg, thiab pentose tuaj yeem siv los ua tsiaj pub.
2. Cov dej nruab nrab
Cov dej nruab nrab yog hais txog cov dej khib nyiab tawm thaum lub sijhawm tshuaj ntsuam, ntxuav, thiab tshuaj ntxuav cov txheej txheem ntawm cov kua txiv hmab txiv ntoo hauv kev lag luam papermaking. Cov xim ntawm cov dej nruab nrab yog daj daj, suav txog 8% mus rau 9% ntawm tag nrho cov pa paug tawm hauv kev lag luam papermaking. COD load ntawm lub pulp yog kwv yees li 310 kg. Qhov concentration ntawm cov dej nruab nrab yog siab dua li cov dej phwj hauv tsev, nrog rau BOD / COD piv ntawm 0.20 txog 0.35. Lub biochemical degradation tsis zoo, thiab cov khoom siv organic tsis yooj yim biodegraded, ua rau kev kho mob nyuaj. Cov organic tshuaj nyob rau hauv dej muaj xws li lignin, cellulose, thiab organic acids. Ntawm lawv, qhov teeb meem ntawm ib puag ncig feem ntau yog cov tshuaj chlorine - muaj cov dej khib nyiab uas tsim tawm thaum lub sij hawm bleaching, xws li chlorine bleaching wastewater thiab hypochlorite bleaching wastewater. Qhov thib ob chlorate bleaching dej khib nyiab feem ntau muaj trichloromethane thiab tshaj 40 lwm cov tshuaj chlorinated organic, feem ntau yog chlorophenols, xws li trichlorophenol.
3. dej dawb
Cov dej dawb yog hais txog cov dej khib nyiab los ntawm cov ntawv ua cov ntawv. Nws tshwm sim los ntawm cov txheej txheem papermaking hauv kev cob qhia papermaking. Cov dej dawb feem ntau muaj cov fibers me me, muab tub lim, coatings, thiab cov khoom siv ntoo yaj, nrog rau cov nplaum ntxiv, lub zog ntub dej, thiab cov khoom khaws cia, feem ntau insoluble COD, nrog cov biodegradability tsawg. Qhov sib ntxiv ntawm preservatives muaj qee yam toxicity. Cov dej dawb muaj cov dej ntau, tab sis nws cov khoom muaj kuab paug hauv nruab nrab yog qis dua li cov cawv dub los ntawm ntu ua noj thiab dej nruab nrab. Tam sim no, yuav luag tag nrho cov ntawv mills tau txais ib feem lossis tag nrho kaw cov tshuab los txo cov dej siv ntawm cov ntawv, txuag hluav taws xob, nce cov dej dawb rov siv dua, thiab txo cov dej dawb ntau dhau.
4. Sib tsoo cov dej khib nyiab
Cov dej khib nyiab tawm ntawm lub tshuab sib tsoo thiab lub tshuab ua kom zoo yog hu ua kev sib tsoo dej khib nyiab. Hom dej khib nyiab no muaj ntau cov fibers thiab cov fillers thiab cov nplaum ntxiv thaum lub sijhawm tsim khoom.
5. Cov dej khib nyiab pov tseg
Cov dej khib nyiab tawm los ntawm cov txheej txheem bleaching kuj muaj ntau cov tshuaj acidic thiab alkaline. Bleaching cov dej khib nyiab yog ib feem tseem ceeb ntawm cov txheej txheem pulping, tab sis nws kuj tsim cov dej khib nyiab ntau, ua rau muaj kuab paug rau ib puag ncig.
6. Lwm cov dej khib nyiab
Ntxiv nrog rau cov ntsiab lus saum toj no, kev tsim cov ntawv kab lis kev cai kuj tseem tuaj yeem tsim lwm cov dej khib nyiab, xws li cov dej khib nyiab evaporation los ntawm cov dej cawv dub, cov kua ua kua los ntawm kev ntxuav thiab tshuaj xyuas cov ntawv pov tseg, deinking cov dej khib nyiab, cov txiaj ntsig siab pulping ua ntej - kho, tshuaj xyuas thiab purification, bleaching dej khib nyiab, thiab papermaking dej dawb. Cov pa phem tseem ceeb hauv cov dej khib nyiab no yog cov fibers uas ploj lawm, cov khoom organic uas tau yaj los ntawm cov khoom siv raw, thiab los ntawm - cov khoom, nrog rau cov ntaub ntawv siv tshuaj ntxiv thaum lub sijhawm kho.
Kev sib piv cov duab ntawm cov dej qias neeg thiab cov dej kho
IV. Txheej Txheem Nthuav Ntim Cov Ntawv Pov Tseg Kev Kho Dej
Nyob rau hauv teb rau cov yam ntxwv ntawm ntim ntawv pov tseg, peb tau tsim ib tug scientific thiab npaum txheej txheem kev kho dej khib nyiab, uas feem ntau muaj cov nram qab no cov kauj ruam:
1. Ua ntej-kev kho mob theem
Lub hom phiaj tseem ceeb ntawm theem ua ntej - kev kho mob yog tshem tawm cov khib nyiab tshem tawm, kho pH tus nqi, thiab txo qhov concentration ntawm cov organic teeb meem, tsim cov xwm txheej rau kev kho mob biochemical tom ntej. Cov kauj ruam tshwj xeeb yog raws li nram no:
Grate: Tshem tawm cov khib nyiab loj thiab cov khoom ntab 2.
Kev sib npaug ntawm lub tank: tswj cov dej ntws ntawm cov dej khib nyiab thiab txhim kho cov dej zoo, muab cov dej ruaj khov rau kev kho mob tom ntej 2.
Sedimentation tank: Tshem tawm cov khib nyiab zoo thiab qee cov organic teeb meem 2.
Cua flotation tank: Ntxiv tshem tawm cov khib nyiab thiab qee cov organic teeb meem 2.
Neutralization tank: Kho tus nqi pH ntawm cov dej khib nyiab kom ncav cuag qhov tsim nyog rau kev kho biochemical 2.
2. Kev kho mob biochemical theem
Kev kho biochemical theem yog theem tseem ceeb ntawm kev kho cov dej khib nyiab, feem ntau yog siv cov thev naus laus zis kho mob xws li activated sludge method thiab biofilm method kom tshem tawm cov organic teeb meem, nitrogen, thiab phosphorus pollutants hauv cov dej khib nyiab. Cov kauj ruam tshwj xeeb yog raws li nram no:
Anaerobic biological kev kho mob: Anaerobic biological kev kho technologies muaj xws li upflow anaerobic sludge txaj (UASB), thiab lwm yam. Anaerobic biological kev kho mob yuav ua rau kom cov COD tshem tawm tus nqi thiab txo lub nra ntawm kev kho mob tom ntej.
Aerobic biological kev kho mob: Aerobic biological kev kho mob muaj xws li activated sludge method thiab biofilm method. Cov txheej txheem activated sludge ua tiav kev sib xyaw ua ke ntawm cov sludge thiab cov dej khib nyiab los ntawm aeration, siv cov kab mob kom degrade organic teeb meem; Txoj kev biofilm siv cov kab mob ntawm cov kab mob biofilm kom degrade organic teeb meem. Kev kho mob aerobic tuaj yeem tshem tawm ib feem loj ntawm cov organic thiab nitrogen-phosphorus pollutants.
3. Kev kho mob qib siab
Cov theem kev kho mob siab heev yog tsom rau cov dej khib nyiab tom qab kev kho mob biochemical uas tseem muaj cov ntsiab lus siab ntawm recalcitrant organic teeb meem, xim, thiab lwm yam kuab paug. Advanced oxidation, adsorption, membrane sib cais, thiab lwm yam technologies tau txais kev kho mob siab heev los xyuas kom meej tias cov dej khib nyiab tau raws li cov qauv tso tawm. Cov kauj ruam tshwj xeeb yog raws li nram no:
Advanced oxidation technology: Advanced oxidation technologies xws li ozone oxidation thiab Fenton oxidation siv cov oxidants muaj zog los decompose recalcitrant organic teeb meem, txo cov COD thiab xim ntawm cov dej khib nyiab.
Kev siv thev naus laus zis: Siv cov khoom siv adsorption xws li cov pa roj carbon activated kom tshem tawm cov organic teeb meem, xim, thiab lwm yam kuab paug los ntawm cov dej khib nyiab.
Membrane sib cais tshuab: Siv cov txheej txheem sib cais membrane xws li nanofiltration thiab thim rov qab osmosis kom ua tiav kev sib cais ntawm cov organic teeb meem, tshem tawm cov khib nyiab, thiab lwm yam los ntawm cov dej khib nyiab.
Kev kho dej phwj tuaj chart
Industrial Wastewater → Screen & Equalization Tank → DAF Unit → UASB Anaerobic Reactor → Aerobic Biochemical Tank → Secondary Sedimentation Tank → Advanced Oxidation → Discharge mus txog Standard
