I. Disc Diffuser: Kev hloov pauv Oxygen siab tshaj plaws thiab ua tiav cov pa ntau tshaj -Cov Kev Hloov Hloov Ua Kua
Microporous aeration tam sim no yog txoj hauv kev zoo tshaj plaws rau kev hloov pauv oxygen hauv kev kho dej khib nyiab. Cov hom tseem ceeb yog tubular lossis disc membrane microporous aerators, uas yog dav siv hauv cov pa nitrogen thiab phosphorus tshem tawm cov txheej txheem xws li AAO, oxidation ditch, thiab SBR.
Core Efficiency Values:Pa disc diffusers (npuas txoj kab uas hla 1-5 hli) ua tiav SOTE ntawm 25% -45% ntawm aeration qhov tob ntawm 4-6 m, ua rau lawv tib hom aeration system nrog SOTE tshaj 40%. Raws li cov dej khib nyiab tiag tiag (MLSS 2000-4000 mg / L), OTE yog kwv yees li 60% -80% ntawm SOTE.
Core Principple of Efficiency:Huab cua yog tawg mus rau hauv microbubbles los ntawm me me pores (0.5-2 mm inch) ntawm daim nyias nyias. Cov microbubbles no muaj thaj tsam loj dua li qhov nruab nrab lossis cov npuas loj, thiab lawv qhov nce hauv dej yog qeeb heev (0.03-0.1 m / s). Lub sijhawm nyob ntawm cov npuas no hauv lub tank aeration tuaj yeem ncav cuag 3-5 feeb, kom ntseeg tau tias muaj roj txaus-kua kua. Nyob rau tib lub sijhawm, qhov kev hloov pauv loj ntawm lub zog ntawm cov pa roj-kua interface muaj zog thaum lub sijhawm microbubbles nce siab, tso cai rau cov pa oxygen mus rau tag nrho los ntawm theem roj mus rau theem ua kua. Qhov no yog ib qho kev hloov pauv loj hauv kev sib txuas-tsav aeration txoj kev.
Yam tseem ceeb cuam tshuam rau kev ua tau zoo:Dej qhov tob ho txhim kho efficiency; rau txhua txhua 1 m nce hauv dej tob, SOTE nce li ntawm 5% -8%. Txawm li cas los xij, kev ua haujlwm tau zoo cuam tshuam los ntawm dej zoo. Thaum lub MLSS nyob rau hauv lub aeration tank tshaj 4000 mg / L, sludge flocs yooj yim ua npuas aggregation, txo qhov tshwj xeeb deg cheeb tsam thiab txo efficiency los ntawm 10% -30%. Tsis tas li ntawd, micropore scaling thiab sludge adhesion ncaj qha txo qhov pore txaus muaj peev xwm, ua rau cov npuas loj thiab txo qhov ua tau zoo, yuav tsum tau tu thiab tu.
II. Dav Hlau Aeration System: Nruab Nrab Oxygen Transfer Efficiency, Ntsuas Kev Hloov Loj thiab Kev Nyuaj Siab
Dav hlau aeration sib xyaw ua ke roj- kua turbulent mass hloov nrog interfacial loj hloov. Nws tsis yooj yim clogging microporous qauv thiab integrates aeration nrog agitation. Nws qhov kev ua tau zoo poob ntawm cov microporous thiab swirl aeration systems, ua rau nws haum rau siab -cov dej khib nyiab organic, cov dej khib nyiab, lossis cov ntawv thov uas xav tau kev sib xyaw ua ke.
Core Efficiency Values:Ntawm qhov dej tob ntawm 4-8 m, SOTE ntawm dav hlau aerators yog 15% -30%. Raws li cov dej khib nyiab tiag tiag (cov khib nyiab siab thiab MLSS siab), OTE yog kwv yees li 70% -90% ntawm SOTE, nrog kev ua haujlwm tsawg dua piv rau cov tshuab microporous.
Core Principple of Efficiency:Siab - dej siab yog ejected ntawm kev kub ceev los ntawm lub nozzle, tsim tsis zoo siab nyob rau hauv lub dav hlau chamber. Qhov no rub tawm hauv huab cua thiab tawg mus rau hauv me me mus rau nruab nrab- npuas npuas (5-20 mm inch). Cov npuas diffuse nyob rau hauv dej nrog rau cov turbulent flow tsim los ntawm lub siab - dav hlau ceev. Lub dav hlau dav dav tuaj yeem ncav cuag 5-10 m, txuas ntxiv roj ntau ntau -lub sijhawm sib cuag kua. Nyob rau tib lub sijhawm, siab - nrawm nrawm tawg cov txheej txheem tsis tu ncua ntawm cov pa roj-kua sib txuas, txhim kho cov pa oxygen loj. Txawm hais tias nws qhov kev hloov pauv huab hwm coj qis dua li ntawm micropores, cov nyhuv nplawm kom them nyiaj rau qhov tsis txaus ntawm thaj tsam ntawm cov npuas.
Yam tseem ceeb cuam tshuam rau kev ua tau zoo:Dav hlau siab thiab huab cua- rau- dej piv yog cov tseem ceeb cuam tshuam. Qhov zoo tshaj plaws huab cua - mus rau - dej piv yog kwv yees li 1: 3 txog 1: 5. Kev tsis txaus siab ua rau muaj huab cua tsawg dua thiab tsis txaus ua npuas tawg, ua rau kev ua haujlwm tseem ceeb. Dej qhov tob kuj txhim kho efficiency; txhua qhov 'meter' ntxiv ntawm dav hlau qhov tob txuas ntxiv lub sijhawm nyob hauv npuas, nce SOTE los ntawm kwv yees li 3% -5%. Cov tshuab dav hlau muaj kev cuam tshuam tsawg kawg ntawm cov dej tsis zoo, tsis muaj teeb meem pore clogging. Cov teebmeem ntawm sludge concentration thiab tshem tawm cov khib nyiab ntawm npuas aggregation tuaj yeem raug cuam tshuam los ntawm turbulent stirring.
III. Cyclone Aerator: Tsawg Oxygen Transfer Efficiency, Strongest Anti-Interference Capability
Cyclone aeration siv nruab nrab - mus rau - cov npuas loj loj hloov pauv loj. Nws cov qauv yooj yim thiab muaj zog los tiv thaiv-clogging muaj peev xwm ua rau nws hom aeration nrog kev saib xyuas qis tshaj plaws, tsim nyog rau cov chaw kho dej me me, kev ua haujlwm tsis sib haum xeeb, lossis cov xwm txheej uas muaj dej tsis zoo.
Core Efficiency Values:Ntawm qhov dej tob ntawm 3-5 m, SOTE ntawm cyclone aerators tsuas yog 8% -15%. Cov txiaj ntsig ntawm kev nce dej tob ntawm kev txhim kho kev ua tau zoo yog txwv; tshaj 5 m, SOTE nce los ntawm tsawg dua 2%. Raws li cov dej khib nyiab tiag tiag, OTE yog kwv yees li 80% -95% ntawm SOTE, sawv cev rau qhov kev ua haujlwm tsawg tshaj plaws ntawm peb hom aeration thiab qhia ze ntawm kev tiv thaiv rau cov dej tsis zoo.
Core Principple of Efficiency:Tom qab huab cua nkag mus rau hauv lub viav vias chamber ntawm lub aerator, nws tau tawg mus rau hauv nruab nrab - mus rau - npuas loj (20-50 mm inch) los ntawm swirling shear. Cov npuas no sawv hauv lub voj voog tom qab tso tawm, nrog kev nce siab ceev (0.2-0.5 m / s) thiab lub sijhawm nyob ntawm tsuas yog 1-2 feeb. Lawv thaj chaw tshwj xeeb yog me dua li ntawm micropores thiab dav hlau. Oxygen hloov pauv tsuas yog nyob ntawm kev hloov pauv huab cua ntawm cov npuas npuas. Swirling me ntsis nce roj- lub sij hawm sib cuag ua kua tab sis tsis tuaj yeem cuam tshuam cov pa roj- cov txheej txheem ua kua, ua rau tsis muaj zog ntawm huab cua hloov tsheb thiab kev ua haujlwm qis.
Yam tseem ceeb cuam tshuam rau kev ua tau zoo:Cyclone aerator efficiency yog feem ntau cuam tshuam los ntawm hydraulic tej yam kev mob ntawm lub aeration tank. Yog tias muaj ntau qhov chaw hydraulic tuag, cov npuas yuav nce sai sai thiab khiav tawm, ntxiv kev txo qis. Txoj kev tawm npuas (piv txwv li, lub viav vias chamber lub kaum sab xis thiab tus naj npawb ntawm qhov chaw tawm) me ntsis cuam tshuam rau kev ua haujlwm tab sis feem ntau tswj tau. Sludge concentration, tshem tawm cov khib nyiab, thiab dej pH yuav luag tsis cuam tshuam rau kev ua haujlwm. Tsis muaj cov khoom sib txuas, thiab npuas loj yog ruaj khov thiab tsis cuam tshuam los ntawm lwm yam.
|
Aeration System |
Bubble Size |
SOTE (Tswj) |
OTE (Cov dej khib nyiab tiag tiag) |
Lub zog tseem ceeb |
Cov kev txwv tseem ceeb / kev txiav txim siab |
|
Disc Diffuser (Microporous) |
0.5-5 hli (microbubbles) |
25% -45% (yuav tau tshaj 40%) |
~ 60% -80% ntawm SOTE |
Kev hloov pauv oxygen siab tshaj plaws; feem ntau ua tiav cov pa roj- kua ntau hloov; haum rau cov pa nitrogen / phosphorus tshem tawm |
Highly affected by water quality and MLSS >4000 mg / L; pore clogging; yuav tsum tau ntxuav tsis tu ncua; kev ua tau zoo nce nrog dej tob (5-8% ib m) |
|
Dav Hlau Aeration System |
5-20mm (me me mus rau nruab nrab) |
15%–30% |
~ 70% -90% ntawm SOTE |
Sib npaug loj hloov thiab agitation; haum rau siab -concentration organic lossis industrial wastewater; tsawg cuam tshuam los ntawm dej zoo; kev txij nkawm tsawg tsawg |
Kev ua haujlwm qis dua microporous; nyob ntawm lub dav hlau siab thiab huab cua- rau- dej piv (zoo 1: 3-1: 5); dej qhov tob nruab nrab cuam tshuam kev ua haujlwm (3-5% ib m) |
|
Cyclone Aerator (Swirl) |
20-50mm (nruab nrab mus rau loj) |
8%–15% |
80% ~ 95% ntawm SOTE |
Cov qauv yooj yim; muaj zog tshaj tawm tsam - cuam tshuam; kev txij nkawm tsawg tsawg; yuav luag tsis cuam tshuam los ntawm dej tsis zoo |
Kev hloov pauv oxygen qis tshaj plaws; ceev npuas ascent txo cov sij hawm sib cuag; efficiency me ntsis cuam tshuam los ntawm hydraulic tuag aav; txwv kev txhim kho nrog nce dej tob |