Kev daws rau Woven Paper Wastewater Treatment
Kev lag luam thoob ntiaj teb corrugated cardboard xav tias yuav ncav cuag kwv yees li $ 153.6 nphom hauv 2024 thiab tau kwv yees tias yuav loj hlob mus rau $ 277.75 nphom los ntawm 2033, nrog rau kev loj hlob txhua xyoo ntawm kwv yees li 4.9% - 5.0% nyob rau lub sijhawm no. Lub hauv paus tseem ceeb ntawm kev ua lag luam yog los ntawm kev loj hlob ntawm cov pej xeem, kev siv cov khoom siv kho dua tshiab, thiab kev paub txog kev nyiam huv.
Corrugated cardboard, raws li cov khoom ntim tseem ceeb hauv kev lag luam xws li e- kev lag luam logistics, khoom noj khoom haus thiab dej haus, thiab cov khoom siv hauv tsev, nws cov kev xav tau ntawm kev lag luam muaj feem cuam tshuam nrog kev lag luam thoob ntiaj teb, kev noj haus hauv online, thiab kev tiv thaiv ib puag ncig. Nyob rau hauv xyoo tas los no, tau tsav los ntawm kev loj hlob ntawm e- kev lag luam thiab qhov kev thov nce ntxiv rau kev ntim khoom ruaj khov, corrugated cardboard, vim nws cov khoom siv rov ua dua tshiab, lub teeb yuag, thiab kev tiv thaiv muaj zog, tau dhau los ua ib qho ntawm cov khoom ntim ceev tshaj plaws.
I. Txheej txheem cej luam ntawm Cov Neeg Siv Khoom rau Corrugated Paper Wastewater Treatment
Kev lag luam corrugated ntawv yog ib qho ntawm cov kev lag luam hnyav hnyav. Cov dej khib nyiab tsim tawm thaum nws tsim khoom tau muaj kev cuam tshuam loj rau ib puag ncig. Nrog cov kev cai ib puag ncig nruj zuj zus thiab kev paub txog pej xeem kev tiv thaiv ib puag ncig, ntau thiab ntau lub tuam txhab corrugated ntawv tau pib muab qhov tseem ceeb rau kev kho dej khib nyiab thiab nrhiav kev kho dej khib nyiab. Cov neeg siv khoom no muaj xws li me me thiab nruab nrab- cov ntawv loj rau cov ntawv loj thiab cov ntawv loj. 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 kom zoo, yog li txo qhov cuam tshuam rau ib puag ncig thiab txhim kho lawv lub luag haujlwm hauv zej zog thiab kev sib tw.
II. Kev kho dej khib nyiab ntawm Corrugated Paper Corrugated Paper Wastewater Source
Cov dej khib nyiab ntawm daim ntawv corrugated feem ntau yog los ntawm ntau cov txheej txheem tsim khoom xws li pulping, bleaching, papermaking, thiab cav npaj. Nws muaj pes tsawg leeg yog complex thiab cov pa phem load yog siab. Tshwj xeeb, cov dej khib nyiab ntawm corrugated ntawv feem ntau suav nrog cov hauv qab no:
1. Cov dej khib nyiab los ntawm cov txheej txheem rinsing hauv corrugated ntawv ntau lawm
Thaum lub sij hawm tsim cov ntawv corrugated, cov txheej txheem xws li cov ntawv cua sov, tsim cov duab, thov cov kua nplaum, txiav cov ntawv board, thiab luam ntawv yuav tsim cov dej khib nyiab. Tshwj xeeb tshaj yog nyob rau hauv kev noj thiab rov qab system ntawm lub tshuab corrugating, vim viscosity ntawm starch nplaum thiab nws susceptibility rau cov kab mob, pwm, nplai, plua plav paug nyob rau hauv ib tug siab - kub thiab siab - av noo ib puag ncig, ib tug loj npaum li cas ntawm cov dej khib nyiab uas muaj starch nplaum yuav raug tsim thaum lub sij hawm ntxuav. Cov hmoov txhuv nplej siab hauv cov dej khib nyiab no nkag mus rau hauv dej, ua rau COD (Chemical Oxygen Demand) thiab BOD (Biochemical Oxygen Demand) cov concentrations hauv cov dej khib nyiab kom siab.
2. Dej-raws li tus number case luam ntawv cov dej khib nyiab los ntawm cov phaj hloov tau
Hauv cov txheej txheem luam ntawv ntawm cov ntawv corrugated, cov phaj hloov tau siv. Cov cwj mem no feem ntau yog tsim los ntawm dej- cov dej soluble resins, organic pigments, cov kuab tshuaj, thiab lwm yam additives los ntawm kev sib xyaw thiab sib tsoo. Thaum lub sij hawm rinsing txheej txheem ntawm cov khoom siv luam ntawv, cov pigments yuav nkag mus rau hauv ib puag ncig nrog cov dej khib nyiab, uas ua rau muaj xim ntau thiab nyuaj rau kev tshem tawm.
3. Cov dej khib nyiab los ntawm cov ntawv pov tseg pulping txheej txheem
Hauv kev tsim cov ntawv siab -lub zog corrugated, cov ntawv pov tseg pulping yog txheej txheem tseem ceeb. Cov ntaub ntawv pov tseg yog crushed, siab -concentration xuab zeb tshem tawm, kev xaiv pulp, tail pulp fiber sib cais, lub teeb thiab hnyav zoo ua ke uas tsis muaj-concentration xuab zeb tshem tawm, pulp concentration, thiab pulping yog nqa tawm. Cov dej khib nyiab no muaj ntau cov organic xws li lignin, cellulose, thiab hemicellulose, uas yog qhov tseem ceeb ntawm cov pa phem hauv cov dej khib nyiab.
4. Cov dej khib nyiab los ntawm cov txheej txheem papermaking
Nyob rau hauv cov txheej txheem papermaking, lub pulp los ntawm daim ntawv zeb yog thauj mus rau lub pulp cia tank thiab ntau yam additives yog ntxiv. Cov qauv pulp raug xa mus rau qhov qis -pulse filling twj tso kua mis rau sau thiab tom qab ntawd mus rau qhov qis -pulse filling twj rau sau los ntawm lub siab seam screen thiab nkag mus rau hauv lub fabricator. WK hydraulic pulp lub thawv sib npaug faib cov ntaub ntawv los ntawm tus neeg tsim khoom thiab xa nws mus rau ib qho -length net forming tshuab. Thaum lub sijhawm txheej txheem no, cov dej dawb uas tsim los ntawm cov ntawv ua haujlwm yog ncaj qha rov ua dua tshiab rau ntu pulping, thiab cov dej dawb tshaj thiab cov dej lim dej khib nyiab tau sib xyaw ua ke thiab xa mus rau cov nroj tsuag qhov chaw kho dej khib nyiab rau kev kho.
5. Cov dej khib nyiab los ntawm kev npaj cav
Thaum lub sij hawm txheej txheem txheej txheem, lub tshuab tev ntawm cov cav feem ntau yog ua nyob rau hauv lub tev nruas. Muaj ob hom: txoj kev qhuav thiab txoj kev ntub dej. Cov dej khib nyiab los ntawm ntu tev ntawm lub cav npaj rhiav muaj qee yam ntawm cov khoom siv ntoo, uas muaj nyob rau hauv daim ntawv ntawm cov tshuaj yaj ywm colloidal thiab yog qhov tseem ceeb ntawm cov tshuaj lom hauv cov dej khib nyiab. Txawm hais tias cov txheej txheem ntub dej tuaj yeem tau txais cov cav ntoo zoo dua, nws tsim cov dej khib nyiab thiab cov pa phem.
6. Cov dej khib nyiab los ntawm tsis yog - ntoo raw khoom npaj
Hauv Suav teb, cov ntaub ntawv tsis yog - ntoo raw khoom siv dav hauv kev lag luam pulp thiab ntawv muaj xws li nplej straw, nplej straw, qab zib bagasse, xyoob, thiab reed. Noj kev npaj cov nyom raw cov ntaub ntawv ua piv txwv, cov txheej txheem ntawm cov nyom raw cov ntaub ntawv feem ntau siv txoj kev qhuav. Txhawm rau tiv thaiv kom tsis txhob muaj plua plav thiab cov nyom nyom ntau los ntawm ya thiab ua rau huab cua muaj kuab paug, feem ntau cov chaw tsim khoom ntxiv cov cuab yeej tshuaj tsuag kom txo cov plua plav hauv cov plua plav thiab cov khoom siv tshem tawm plua plav. Qhov tshwm sim yog tias cov pa phem rau cov huab cua raug txo, tab sis ib qho loj ntawm cov teeb meem raug tshem tawm raug xa mus rau hauv dej, uas yog, los ntawm huab cua mus rau dej paug. Tib lub sijhawm, cov khib nyiab nyom thiab qee cov dej- cov khoom soluble hauv cov ntaub ntawv raw nkag mus rau hauv cov dej khib nyiab, ua rau BOD5 thiab CODcr hauv cov dej khib nyiab.
III. Cov txheej txheem kho dej khib nyiab rau corrugated ntawv
Nyob rau hauv teb rau cov yam ntxwv ntawm corrugated ntawv pov tseg, peb tau tsim ib tug scientific thiab npaum txheej txheem kho dej khib nyiab, uas feem ntau muaj cov nram qab no cov kauj ruam:
1. Ua ntej-kev kho mob theem: Lub luag haujlwm tseem ceeb yog tshem tawm cov khoom loj ntawm impurities, xws li cov nplaum thiab cov impurities hauv cov ntawv pov tseg, kom ntseeg tau tias kev ua haujlwm zoo ntawm cov kab ntau lawm. Cov kauj ruam no yog qhov tseem ceeb heev vim tias ntau hom ntawv yuav tsum tau siv txoj kev kho mob sib txawv.
2. Equalization tank: Nws yog siv los tswj qhov ntim thiab qhov zoo ntawm cov dej khib nyiab, ua rau cov txheej txheem kho tom ntej ua haujlwm ruaj khov. Kev tsim ntawm lub tank sib npaug yuav tsum coj mus rau hauv tus account qhov yuav tsum tau ntawm cov dej nkag thiab cov dej tawm zoo kom ntseeg tau tias kev nce qib thiab kev ntseeg siab ntawm cov txheej txheem kho.
3. Lub hauv paus sedimentation tank: Nws ua tiav kev sib cais ntawm cov sludge ntawm dej los ntawm sedimentation, tshem tawm cov khib nyiab pov tseg thiab qee cov khoom siv organic los ntawm cov dej khib nyiab.
4. Air flotation tank: Nws yog siv los tshem tawm cov roj ntab thiab cov khib nyiab tshem tawm, txhim kho kev kho cov dej khib nyiab.
5. Anaerobic digestion tank: Los ntawm microbial kev txiav txim, cov organic teeb meem yog degraded thiab hloov mus rau hauv biogas, nrog ib tug siab organic load, uas yuav siv tau raws li lub zog.
6. Hu rau oxidation tank: Nws ua tiav cov organic degradation los ntawm microbial kev ua, nrog rau kev tsim biofilm sai thiab pib luv luv- lub sijhawm nce, ua rau muaj txiaj ntsig zoo ib puag ncig.
7. Secondary sedimentation tank: Nws paub txog kev sib cais ntawm aerobic effluent los ntawm dej, nrog rau cov dej ntshiab yog reusable los yog tawm, thiab tseem tuaj yeem nkag mus rau hauv cov txheej txheem sib sib zog nqus tom qab.
8. Sludge cia tank thiab sludge thickening tank: Lawv yog siv los khaws thiab mloog zoo rau cov sludge generated thaum lub sij hawm kev kho mob, yooj yim rau tom qab sludge dewatering thiab pov tseg.
9. Sludge dewatering tshuab: Nws ua dewatering kev kho mob ntawm cov concentrated sludge, txo qhov ntim ntawm sludge, thiab yooj yim rau kev thauj mus los thiab pov tseg.
Cov dej khib nyiab muaj → Screen lim → Sib npaug Tank → IC Anaerobic Reactor → Aerobic Biochemical Tank → Secondary Sedimentation Tank → Advanced Treatment → Discharge mus txog Standard
IV. Tshwj xeeb Case Studies ntawm Kev Kho Dej Pov Tseg rau Corrugated Ntawv
Shandong Zibo Wan Song Ntawv Kev Lag Luam Co., Ltd.
I. Lub Tuam Txhab Taw Qhia:
Cov khoom tseem ceeb ntawm Shandong Zibo Wan Song Paper Industry Co., Ltd. yog Qib B nruab nrab -lub zog corrugated paperboard puag ntawv, thiab nws yuav muab kev cuam tshuam tom qab- kev muag khoom. Lub tuam txhab cov khoom muag cov khoom lag luam feem ntau suav nrog cov khw muag khoom, cov chaw ntim khoom, thiab cov thawv ntim khoom hauv ntau lub nroog thoob plaws tebchaws. Lub network muag khoom npog tag nrho lub xeev, Zhejiang, Hebei, Tianjin thiab lwm lub xeev thiab nroog. Lub tuam txhab muaj ib lub chaw kho dej phwj tuaj, uas yog lub luag haujlwm rau kev kho cov ntaub ntawv pov tseg ntawm lub tuam txhab. Cov dej khib nyiab kho tau tuaj yeem siv rau lub tshuab ntawv los tsim cov dej rov ua dua tshiab.
II. Aerobic Aeration Retrofit
Cov dej khib nyiab papermaking muaj ntau cov fibers, ntawv pulp thiab lwm yam pov tseg impurities. Cov khoom siv niaj hnub kho aeration yog qhov ua rau txhaws, ua rau cov pa oxygen cuam tshuam. Lub "Ib -rau-Phau" tuaj yeem nqa lub tshuab aeration ncaj qha los ntxuav qhov chaw thiab tsis tas yuav tsum tau kaw ntau lawm rau kev tshem tawm, hauv paus daws qhov teeb meem ntawm impurity clogging.
Thaum lub sij hawm tsim cov ntawv, cov dej ntws thiab COD concentration feem ntau hloov pauv nrog kev hloov kho muaj peev xwm, uas yuav ua rau muaj kev nce ntxiv hauv cov organic load ntawm lub tank aerobic thiab nce microbial oxygen noj. Cov cuab yeej aeration no tuaj yeem tswj hwm txhua pab pawg ntawm aeration units thiab hloov kho cov huab cua ntim kom haum raws li qhov xav tau tiag tiag -time oxygen noj.
III. Cov teebmeem tseem ceeb tau ua tiav tom qab kev teeb tsa
1. Txhim kho qhov ua tau zoo ntawm kev kho dej khib nyiab: Cov npuas me me uas tsim los ntawm lub tshuab aeration ua rau muaj kev sib cuag ntawm cov roj thiab cov kua, thiab cov pa oxygen siv tau zoo dua. Nws tuaj yeem ceev ceev cov pa oxygen hauv lub tank aerobic ntawm qhov zoo tshaj plaws ntawm 2-4mg / L, kom ntseeg tau tias cov kab mob tuaj yeem txo cov pa phem xws li COD thiab BOD, thiab cov dej ntws zoo yog ruaj khov thiab zoo dua rau "Papermaking and Pulp Industry Water Pollutants Discharge Standard" (GB 32184-2).
2. Txo cov nqi khiav lag luam thiab kev saib xyuas: Kev hloov pauv cov pa oxygen siab tuaj yeem txo qhov kev siv lub zog ntawm cov kiv cua; kev txij nkawm tsis tas yuav muab cov dej tso rau hauv lub tank lossis rov- cog cov kab mob, thiab ib pab pawg tu tus nqi raug txo los ntawm ntau dua 60%, thiab kev ua haujlwm txhua xyoo thiab cov nqi kho mob tau txais kev cawmdim los ntawm 30% -40%.
3. Ua kom lub cev ua haujlwm tsis tu ncua thiab ruaj khov: Tsis txhob ua haujlwm cuam tshuam los ntawm cov khoom siv aeration thaiv lossis kev kaw haujlwm, txo qhov kev pheej hmoo ntawm sludge kev ua haujlwm poob qis thiab cov dej ntws tawm dhau cov qauv, thiab tib lub sijhawm, cov cuab yeej siv los tiv thaiv - cov ntaub ntawv corrosion, nrog rau kev pab cuam lub neej ntawm ntau tshaj 5 xyoos, thiab kev ua haujlwm ruaj khov.
4. Ua tiav cov pa oxygen thiab kev txuag hluav taws xob: "Ib qho- rau- Plaub" pab pawg tsim tuaj yeem kho cov pa ntim raws li qhov xav tau ntawm cov pa oxygen sib txawv hauv ntau qhov chaw ntawm lub tank, zam kev tsis txaus lossis ntau dhau aeration hauv qee qhov chaw, txo qis hluav taws xob pov tseg, thiab ua tau raws li lub zog -txuag thiab kev txo qis ntawm kev lag luam.
Qhov project ntawm qhov chaw kho dej phwj tuaj ntawm Qinhuangdao Fuqingning Fengbang Ntawv Co., Ltd.
Cov ntaub ntawv yooj yim: Nyob rau sab qab teb sab hnub tuaj ntawm Shoulianding Town, npog thaj tsam ntawm ntau tshaj 90 daim av. Nws txais BOT peev qauv ua haujlwm, nrog rau tag nrho cov peev ntawm kwv yees li 150 lab yuan. Cov dej muaj txiaj ntsig zoo ntawm lub tshuab aeration yog raws li hauv qab no: CODcr Tsawg dua lossis sib npaug li 2000mg / l, BOD5 Tsawg dua lossis sib npaug li 800mg / l, ammonia nitrogen Tsawg dua lossis sib npaug li 50mg / l, tag nrho nitrogen Tsawg dua lossis sib npaug li 400mg / l, thiab cov ntim dej tsim yog / d 1000m³ Tom qab kev kho mob lom neeg los ntawm peb cov khoom siv tiv thaiv ib puag ncig Guangbo, cov khoom siv hluav taws xob tsim tau nce mus txog CODcr Tsawg dua lossis sib npaug li 400mg / l.
• Kev Kho Mob: Nws txais cov txheej txheem kev kho mob lom neeg ntawm oxidation ditch + kev kho mob siab heev + tshuaj tua kab mob ultraviolet. Ntawm lawv, Karusel oxidation ditch yog lub hauv paus tseem ceeb ntawm kev kho dej khib nyiab, siv cov kab mob hauv cov activated sludge kom degrade organic pollutants hauv dej. Lub hauv paus tswj chav ua kom tiav cov kev tswj tsis siv neeg ntawm tag nrho cov nroj tsuag thiab kev tswj ntau lawm.
• Thaj Chaw Pabcuam: Qhov chaw pabcuam suav nrog cheeb tsam nroog ntawm Fuqing County thiab thaj chaw ua ntaub ntawv tseem ceeb ntawm Shoulianding Town. Cov effluent ua tau raws li tus qauv ntawm "Pollutant Discharge Standard for Urban Wastewater Treatment Plants (GB18918 - 2002)".
