Kev siv sodium acetate hauv cov dej phwj tuaj kho

Kev siv sodium acetate hauv cov dej phwj tuaj kho,
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Main indicators:
Cov ntsiab lus: ≥20%, ≥25%, ≥30%
Cov tsos mob: ntshiab thiab pob tshab kua, tsis muaj ntxhiab tsw ntxhiab.
Cov dej tsis muaj dej: ≤0.006%

Lub hom phiaj tseem ceeb:
Txhawm rau kho cov dej phwj hauv nroog, kawm txog kev cuam tshuam ntawm cov hnub nyoog sludge (SRT) thiab cov pa roj carbon monoxide (sodium acetate solution) ntawm qhov system denitrification thiab phosphorus tshem tawm. Sodium acetate yog siv los ua cov pa roj carbon monoxide ntxiv rau kev ua kom cov sludge denitrification, thiab tom qab ntawd siv cov tshuaj tsis haum los tswj qhov nce hauv pH thaum lub sij hawm denitrification hauv thaj tsam ntawm 0.5. Cov kab mob denitrifying tuaj yeem adsorb CH3COONa ntau dhau, yog li thaum siv CH3COONa ua cov pa roj carbon monoxide sab nraud rau denitrification, tus nqi COD effluent kuj tseem tuaj yeem khaws cia ntawm qib qis. Tam sim no, kev kho cov dej phwj tuaj hauv txhua lub nroog thiab cov nroog yuav tsum tau ntxiv sodium acetate ua cov pa roj carbon monoxide kom ua tau raws li cov qauv emissions thawj theem.

Khoom specification

Daim ntawv thov ntawm sodium acetate ua cov pa roj carbon ntxiv rau cov chaw kho dej khib nyiab suav nrog cov kauj ruam hauv qab no

1) Kho tus nqi ph ntawm cov dej phwj tuaj hauv lub tank tswj, thiab tom qab ntawd kho tus nqi ph ntawm cov dej phwj hauv lub tank nag lossis daus;

2) Cov dej phwj tuaj ua haujlwm raug thauj mus rau lub tank kab lis kev cai microbial oxidation kev kho mob, thiab sodium acetate ntxiv rau hauv cov txheej txheem thauj mus los raws li cov pa roj carbon monoxide;

3) Cov dej khib nyiab hauv kev lag luam tom qab kev kho mob microbial oxidation yog precipitated rau lub sij hawm thib ob kom tau txais cov dej ntshiab. Yog li ntawd, qhov teeb meem flammable thiab tawg ntawm methanol raws li cov pa roj carbon monoxide yog daws, thiab tus nqi qis dua methanol, starch, qabzib, thiab lwm yam.

Daim ntawv thov ntawm sodium acetate ua cov pa roj carbon monoxide sab nraud hauv cov chaw kho dej phwj tuaj yog tus cwj pwm los ntawm cov kauj ruam hauv qab no:

1) Kho tus nqi ph ntawm cov dej phwj tuaj hauv lub tank regulating, thiab precipitate cov dej phwj tuaj tom qab kho tus nqi ph hauv lub tank settling;

2) Thauj cov dej phwj tuaj rau hauv lub tank kab lis kev cai rau microbial oxidation kev kho mob, thiab ntxiv sodium acetate ua cov pa roj carbon ntawm cov kab mob hauv cov txheej txheem thauj. Qhov sib ntxiv ntawm sodium acetate yog 5 (Ne Ns) / 0.68 ib liter ntawm dej phwj tuaj. Ne dej phwj yog tam sim no effluent nitrogen cov ntsiab lus mg / l, thiab Ns dej phwj yog cov ntsiab lus nitrogen mg / l nyob rau hauv tus qauv siv. 0.68 yog COD tus nqi sib npaug ntawm sodium acetate;

3) Cov dej khib nyiab hauv kev lag luam tom qab kev kho mob microbial oxidation yog precipitated rau lub sij hawm thib ob kom tau txais cov dej ntshiab.