Vim li cas cov tshuaj tsis kam ua rau MBRBRICT
Hauv kev txav lub txaj biofilm reactor (MBBR) Technology, Cov Khoom Siv Cov Khoom Siv Sau Tseg Dictates Kev Tiv Thaiv Hluav Taws Xob HDPE (high-ntom polyethylene) tau tshwm sim raws li tus txheej txheem kub rau MBR Biofilm Carrier. Tsis zoo li PVC lossis PP cov nqa khoom, HDPE cov ntaub pua caj noob polymer nrog tsawg heev cegring muab:
- Kev tiv thaiv kev tiv thaiv rau hydrolysis los ntawm phustres (ua hauj lwm ntau: Ph 1-14)
- Kuj rau cov kuab tshuaj tua (suav nrog ketones, cawv, thiab tshuaj chlorinated organics)
- Xoom leaching ntawm cov plyas lossis cov hlau hnyav los kho dej
Cov tshuaj muaj peev xwm no yog qhov tseem ceeb hauv kev lag luam MBR kom poob siab rau qhov twg shopples thauj cov acids, alkalis, lossis organic kuab tshuaj tuaj yeem txwv cov ntaub ntawv hauv<2 years.
Molecular architecture: lub hauv paus ntawm HDPE lub ruaj khov
1. Crystallinity & Nyiaj Txiag Zog Zog
HDPE's 80-95% Crystallinity (vs. 50}}}}}}}}
- C-C Nyiaj Zog: 347 KJ / Mol (vs. C-cl lub 339 kj / mol hauv pvc)
- Van der Waals rog: 4-8 KJ / MOL ntawm METHLEN pawg
Cov qauv no yuav tsum muaj 20% kev ua kom muaj zog ntau dua rau oxidative tawg piv rau PP cov muaj. Hauv Anaerobic MBBR lub tshuab kho kom zoo nkauj, HDPE cov yeeb yam<3% mass loss after 10,000 hours in 10% methanol solutions.
2. Cov Pob Khoom Siv Khoom Siv Hluav Taws Xob
Hwm tus qauv MBBR tus qauv tsim kev sib xyaw ua ke hauv pausquilizers stabilizistic:
- Hindered phenols: Scavenge dawb radicals ntawm 0.3-0.5% concentration
- Phosphites: Hydroopoxide decomposers tiv thaiv txoj saw hlau
- UV nqus: Benzotriazole derivatives rau sab nraum zoov MBR tso tsheb hlau luam sab nraum zoov
Cov kev sim sai sai (85℃/ 95% Rh) Qhia RhPe cov neeg nqa khoom tau txais 98% kev cuam tshuam rau kev txav txaj bioreactor cov txheej txheem kev ntseeg tau.
Kev sib piv ua tau zoo: HDPE Vs. Alpivative cov ntaub ntawv
Cov lus: Cov tshuaj tua kab mob ntawm MBRB media hauv cov chaw pov tseg dej huv
| Ntiag tug | HDPE Cov Neeg Nqa Khoom | PP muaj | Pvc Cov Carriers |
|---|---|---|---|
| Max Nruam Nraum | 120 Qib | 100 degree | 60 degree |
| Acid Refantance | Zoo heev (txog txog ntawm cov hatso₄) | Zoo (duab. H₂so₄) | Poor (conc. >30%) |
| Alkali tsis kam | Zoo heev (50% NAOH) | Zoo tshaj | Zoo (ph<10) |
| Hnyav tiv thaiv | Zoo heev (dej cawv, ketones) | Kev ntsuas (swells hauv ketones) | Pluag (yaj nyob rau hauv thf) |
| Oxidant Daus | 5,000 ppm clr | 2,000 ppm clr | 500 ppm clr |
| Kev Pabcuam Lub Neej | 15-20 xyoo | 10-15 XYOO | 8-12 XYOO |
Engineering cuam tshuam rau cov qauv tsim
1. Biofilm adhesion optimization
HDPE lub zog saum npoo (31 mn / m) pab txhawb biofilm anecainming los ntawm:
- Micro-roughening(Ra =15}}}}}}}}}}}}}}}}}}}}}}}}}}}}-pab moulding) nce ntxiv adhesion cheeb tsam los ntawm 3.8 x
- Tswj OxidationTsim Hydroxyl / Carbonyl Pawg rau EPS Binding
Teb cov ntaub ntawv los ntawm cov tshuaj cog mbbr system rau kev kho kom zoo tshaj 40% thicker biofilms ntawm HDPE thiab PP cov muaj kab ke.
2. HYDRAULIC Kev Ua Haujlwm Txhim Kho
Qhov qis qis sib txhuam coefficient (0.1-0.3) ntawm HDPE MBRRB FRALT MEWNATES:
- Kev Siv Zog: 0.8-1.2 kw / m³ vs . 1.5+ kw / m³ rau tej hub xov
- Cov cab kuj sib deev kev puas tsuaj: Hnav tus nqi<0.01%/year in abrasive flows
Qhov no tso cai rau MBRB lub tso tsheb hlau luam los ua haujlwm ntawm 0.3-0.5 M / s velocities tsis muaj cov cab kuj-ua tsis tau nrog cov ntaub ntawv plight.
Kev Kawm Txog Kev Kawm: Drackling Textile Dowing Wastewater
Lub Turkish Denim Hoobkas lub Hoobkas MBR qhuav tsis ua tiav vim muaj cov thauj khoom hauv cov dej da dej muaj:
- Pha viav vias los ntawm 2.5 (Indigo vats) rau 12 (Bleach Rinses)
- 15,000 ppm sulfate ions
- Acetone / isopropanol cov kuab tshuaj sib xyaw
Tom qab hloov mus rau HDPE MBR Biofilm Cov Nqa Nqa:
- Cov cab kuj muaj kev ncaj ncees: Xoom deformation tom qab 18 lub hlis (vs . 70% ploj hauv PVC nqa)
- COD TSHWJ XEEB: Txhawb nqa 92% efficiency (yav dhau los poob mus rau 65%)
- Slude txo: 30% qis biomass pov tseg los ntawm ruaj khov me me
Kev Ua Huab Cua Yav Tom Ntej: Smart HDPE formulations
1. Kev Kho Mob Rau Yus Tus Kheej
Microensulated kho cov neeg sawv cev (piv txwv li, dcpd monomer) embedded hauv HDPE:
- Autonomously repair scratches >500μm tob
- Txuas txoj kev pabcuam lub neej rau 25+ xyoo nyob rau hauv corrosiveMBRBR BiSeactorIb puag ncig
2. Cespute HDPE Hybrids
Graphene-doped cov nqa khoom (0.5-2 wt%) enabling:
- ELOLLOATORATORATION BAIOFILMS: Ncaj qha electron hloov chaw nyob rau hauvanaerobic mbbrTshuab
- Biofilm Thickness tswj: Electrostatic repulsion txwv overgrowth
Kev ntsuam xyuas kev sim qhia 40% nrawm dua thiab 15% siab dua kev tshem tawm.
3. Biofunctionsalized chaw
Ntshav-kho HDPE nrog immobilized enzymes:
- Laccase coasters: Txawv AZO Dyes ncaj qha rau cov chaw thauj khoom
- Nitrifiers-txhim kho peptides: Boost ammonia oxidation tus nqi los ntawm 2x