Hauv kev kho cov dej khib nyiab, qhov teeb tsa ntawm lub raj diffusers ncaj qha cuam tshuam rau kev hloov pauv oxygen, kev siv hluav taws xob, thiab kev kho mob. Kev npaj cov diffusers yuav tsum tau tsim los ua ke nrog cov qauv tank, txheej txheem kev kho, thiab cov yam ntxwv zoo ntawm cov dej kom ntseeg tau tias cov npuas tsis sib xws thiab zam kom tsis txhob muaj anaerobic hauv cheeb tsam lossis dhau - aeration tej yam kev mob. Feem ntau cov raj diffuser layouts muaj xws li ncig, ceg, kab sib chaws, swirl, thiab alternating configurations, txhua tus haum rau cov kev khiav hauj lwm sib txawv.
Vajvoog Layout
Qhov kev npaj no yog tsim rau lub voj voog lossis lub voj voog, xws li cov txheej txheem oxidation ditch. Tube diffusers yog ntsia concentrically los yog spirally raws lub tank phab ntsa, txhim kho cov dej ntws los ntawm cov npuas npuas nce txoj kev. Cov qauv tsim tseem ceeb muaj xws li cov yeeb nkab txoj kab uas hla (feem ntau DN50-DN150) thiab lub nplhaib sib nrug (0.8-1.5 m), nrog rau cov npuas yuav tsum tau tshaj 70% ntawm lub tank pem teb. Kev poob siab ntawm khoov yuav tsum tau txo qis siv 45℃angled luj tshib.
Ceg layout
Feem ntau siv nyob rau hauv cov duab plaub aeration tso tsheb hlau luam, qhov tsim qauv no muaj cov kav dej loj raws lub tank ntev nrog cov ceg ntoo txuas ntxiv hauv cov qauv ntses. Ceg nrug yog txiav txim los ntawm qhov chaw pabcuam diffuser (piv txwv li, 0.6-0.8 m rau microporous diffusers). Lub valve yuav tsum tau nruab rau ntawm lub ntsiab yeeb nkab kawg kom tiv thaiv sludge tsub zuj zuj. Kev faib tawm huab cua tuaj yeem hloov kho ntawm thaj chaw tswj li qub kom haum rau qhov muaj txiaj ntsig zoo.
Daim phiaj layout
Typically applied in plug-flow aeration tanks, tube diffusers are arranged in a matrix to form a grid. Supports are required at pipeline nodes to prevent displacement by hydraulic forces. Grid spacing usually ranges from 0.5–1.2 m, adjusted based on MLSS levels (e.g., spacing ≤0.5 m for MLSS >3000 mg / L). Lub tank pem teb yuav tsum muaj 1% - 2% txoj kab nqes los pab txhawb cov sludge txav mus rau cov chaw nres nkoj tawm.
Swirl Layout
Tsim los rau qhov sib sib zog nqus-shaft aeration tanks nrog qhov siab siab- mus rau - txoj kab uas hla, diffusers tau teeb tsa tangentially los tsim kev sib hloov ntawm cov npuas nce. Qhov zoo tshaj plaws kev teeb tsa lub kaum sab xis yog 30℃-45 degree, thiab tiv thaiv -clogging swirl diffusers raug pom zoo. Txoj kev no ua tiav cov huab cua - mus rau - dej piv txog 15: 1, haum rau siab - lub zog cov dej khib nyiab organic tab sis yuav tsum muaj siab - lub tshuab nqus tsev siab.
Hloov Layout
Siv nyob rau hauv cov txheej txheem tsis sib xws xws li alternating oxidation ditches, qhov system no hloov chaw aeration ntawm hluav taws xob li qub. Ob lub yeeb nkab sib txuas ua haujlwm nyob rau hauv lub voj voog (piv txwv li, 2-teev aeration / 1-teev chaw), nrog li qub raws li IP68 sealing qauv. Kev txuag hluav taws xob ntau dua 30%, tab sis ob lub tshuab tswj tau xav tau rau kev ntseeg siab.
Cov khoom xaiv thiab kev teeb tsa
Tube diffuser cov ntaub ntawv yuav tsum tiv thaiv corrosion thiab ua kom ruaj khov: EPDM roj hmab raj rau pH 6-9; silicone roj hmab raj rau pH 2-12. Cov kav dej yuav tsum tau ruaj ntseg nrog 316L stainless hlau clamps (qhov nrug tsawg dua lossis sib npaug li 1.5 m, txo rau 0.8 m ntawm khoov). Tom qab- kev teeb tsa siab ntsuas ntawm 1.5 × ua haujlwm siab rau 30 feeb yuav tsum pom tsawg dua lossis sib npaug li 5% siab poob.
Kev ua haujlwm thiab kev tu
Regularly monitor aeration uniformity using dissolved oxygen (DO) probe arrays; investigate clogging if DO deviations exceed ±0.5 mg/L. Chemical cleaning frequency depends on water hardness: quarterly acid washing (5% citric acid for 2 hours) for calcium carbonate >200 mg/l. Kev tu lub cev tuaj yeem siv siab - cov dav hlau dej siab (Ntau dua lossis sib npaug li 10 MPa) rau cov khoom siv hluav taws xob rov qab.