Kev paub thiab kev siv cov dej phwj tuaj kho

I. Dej phwj yog dab tsi?

Dej phwj yog hais txog cov dej tawm ntawm kev tsim khoom thiab kev ua neej nyob. Tib neeg siv dej ntau hauv lub neej txhua hnub thiab kev tsim khoom, thiab cov dej no feem ntau dhau los ua cov kab mob sib txawv. Cov dej tsis huv yog hu ua dej phwj.

II.Yuav ua li cas kho cov dej phwj tuaj?

Kev kho dej phwj tuaj koom nrog kev siv ntau yam thev naus laus zis thiab txoj hauv kev los cais, tshem tawm, thiab rov ua cov pa phem hauv cov dej phwj tuaj lossis hloov mus rau hauv cov khoom tsis zoo, yog li ntxuav cov dej.

III.Kev siv tshuaj biochemical hauv cov dej phwj tuaj?

Kev kho biochemical ntawm cov dej phwj tuaj siv cov txheej txheem ntawm lub neej microbial kom tshem tawm cov organic soluble thiab qee cov organic insoluble ntawm cov dej khib nyiab, ua kom cov dej huv.

IV.Kev piav qhia ntawm cov kab mob aerobic thiab anaerobic?

Cov kab mob aerobic: Cov kab mob uas yuav tsum tau muaj cov pa oxygen dawb lossis tsis raug tshem tawm thaum muaj cov pa dawb. Cov kab mob anaerobic: Cov kab mob uas tsis xav tau cov pa dawb lossis tsis raug tshem tawm thaum tsis muaj oxygen dawb.

V.Kev sib raug zoo ntawm dej kub thiab kev ua haujlwm?

Cov dej kub tseem ceeb cuam tshuam rau kev ua haujlwm ntawm lub tank aeration. Hauv cov chaw kho dej phwj tuaj, cov dej kub hloov maj mam hloov nrog lub caij nyoog thiab tsis tshua hloov hauv ib hnub. Yog tias pom muaj kev hloov pauv tseem ceeb hauv ib hnub, kev tshuaj xyuas yuav tsum tau ua los kuaj xyuas cov dej txias hauv kev lag luam. Thaum cov dej kub txhua xyoo nyob rau hauv thaj tsam ntawm 8-30 ℃, kev kho kom zoo ntawm lub tank aeration txo thaum ua haujlwm qis dua 8 ℃, thiab BOD5 tshem tawm tus nqi feem ntau qis dua 80%.

VI.Cov tshuaj uas siv los kho cov dej phwj tuaj?

Acids: sulfuric acid, hydrochloric acid, oxalic acid.

Alkalis: txiv qaub, sodium hydroxide (caustic soda).

Flocculants: Polyacrylamide.

Coagulants: Poly Aluminium Chloride, txhuas sulfate, ferric chloride.

Oxidants: Hydrogen peroxide, sodium hypochlorite.

Cov tshuaj txo qis: Sodium metabisulfite, sodium sulfide, sodium bisulfite.

Cov neeg ua haujlwm ua haujlwm: Ammonia nitrogen tshem tawm, phosphorus tshem tawm, hnyav hlau scavenger, decolorizer, defoamer.

Lwm cov tshuaj: Scale inhibitor, demulsifier, citric acid.