Mishly Wastewater
Misees Whatewater nthuav tawm cov kev sib tw me me nrog nws cov ntsiab lus rog siab (}}}% lipids) thiab cov khoom siv proteinaceace) thiab cov khoom siv proteinaceace) thiab cov khoom siv proteinaceace) Xaiv cov qauv sib piv tau xav tau kev nkag siab colloidal chemistry thiab shear kev nyuaj siab dynamics. Ntawm no yog li cas txiav-ntug Membrane engineering conquers mis ua cov khib nyiab
1. Cov Khoom Siv Science Science
| Membrane Hom | Tub Ntxhais Kev Txhawb | Cov txiaj ntsig tshwj xeeb |
|---|---|---|
| Fluorocarbon-epdm | Perfluoroet | 90% nplua kev xyeej, tiv thaiv cov tshuaj tiv thaiv kab ke |
| Graphene-PDMS | 2d nanosheet txhawb zog | 50% ntau lub zog muag vs txheem EPDM |
| Zwitterion-pu | Kev them nqi hluav taws xob ua haujlwm | Xoom biofouling rau CIP (huv-hauv-qhov chaw) tshuab |
Kev Kawm Txog: Ib qho New Zealand Misees tiav tau 85% Sote siv zwitterion-pk jricbranes txawm tias muaj 8% cov ntsiab lus rog.
2. Ua npuas loj ua kom tau ua kom tau loj leeb matrix
• Cov npuas ({0. 5-2 mm):
• Cov pa hloov mus rau: 4.2 kgoz / kw @ degree
• Qhov zoo tagnrho rau:
• BL txo qis hauv kev kho ob
• NITRRICATION UA NTEJ
• Coarse npuas (5-10 mm):
• Sib xyaw Zog: {0. 8 w / ml vs 2.5 rau kev nplua
• Qhov zoo rau:
• Rog globle discersion
• Kev tiv thaiv txheej txheem
3. Hydrodynamic Tsim Principles
• Kev tswj hwm kev nyuaj siab:
τ=_ (du / dy)
Qhov twg:
τ <1.2 PA (tiv thaiv floc tawg)
τ> {{{0. 5 PA (inhibits cov rog tso dej)
• Muaj Zog Txiaj Vaj Khwv Dej:
Saib {0. {{{}}. 08 m² / s² rau kev hloov pauv zoo vs rog sib cais
4. Ntse fouling tswj
• Electrostatic repulsion:
Thov -25 MV Zeta Muaj Peev Xwm Ntawm Embedded Carbon Nanotubes
• Thermal ntxuav:
70 Degree tawg txhua txhua 4H yaj -Lactoglobulin tso nyiaj
• Ai Clog twv ua ntej:
Kev co kev co cov kev txheeb xyuas kev txheeb xyuas huab cua kev ua ntej Membrane Fouling 72H ua ntej
Txoj Kev Cai Ua Haujlwm rau Mis Los WWTPS:
1. Kev kho mob ua ntej: yaj huab cua flotation (DAF) tshem tawm 80% rog
2. Mihabrane xaiv:
• Kev Kho Mob Tseem Ceeb → coarse npuas (φ8mm)
• Kev kho mob theem nrab → Cov npuas hniav zoo (φ1.2mm)
3. Txij Nkawm:
• Lub limtiam Enzymatic Backwash (protease-lipase muab)
• Txhua Xyoo Nano-Txheej Hloov Refresh