Tshuaj kho dej phwj tuaj

Kev kho dej khib nyiab yog txheej txheem nyuaj uas yuav tsum tau siv ntau yam tshuaj los pab ntxuav cov dej.Flocculants yog ib qho ntawm cov tshuaj tseem ceeb uas ua lub luag haujlwm tseem ceeb hauv cov txheej txheem dej phwj tuaj.Tsab ntawv xov xwm no yuav qhia meej txog qhov ntau npaum li cas ntawm cov dej phwj tshuaj kho mob, daim ntawv thov kev lag luam ntawm flocculants hauv kev kho dej phwj, lub luag haujlwm ntawm dej phwj tshuaj, thiab kev ceev faj rau kev siv flocculants.

Qhov ntau npaum ntawm cov tshuaj kho dej phwj yog nyob ntawm qhov zoo ntawm cov dej phwj tuaj, txheej txheem kev kho thiab cov xwm txheej tiag tiag.Cov hauv qab no yog cov piv txwv ntawm ntau npaum li cas ntawm qee cov tshuaj kho dej phwj tuaj:

Polyaluminium chloride (PAC):Feem ntau siv los ua flocculant, nws tuaj yeem hnov ​​​​mob tsis zoo rau cov khoom siv colloidal los tsim cov hydroxide micelles kom tshem tawm cov khib nyiab thiab cov hlau hnyav ions.Raws li ib txwm muaj, qhov ntau npaum li cas ib tuj ntawm cov dej nyoos yog li kaum grams, tab sis qhov tseeb npaum li cas yuav tsum tau kho raws li cov dej nyoos zoo thiab cov txheej txheem.

Polyacrylamide (PAM):siv los ua coagulant los txhim kho qhov nruj thiab ruaj khov ntawm floc.Feem ntau siv ua ke nrog polyaluminium chloride, qhov ntau npaum li cas ib tuj ntawm cov dej nyoos yog li ob peb grams, tab sis qhov tseeb npaum li cas yuav tsum tau kho kom haum raws li cov txheej txheem thiab hom ntawm cov pa phem.

Flocculants tau dav siv hauv kev kho dej khib nyiab, feem ntau suav nrog cov hauv qab no:

Kev kho cov dej khib nyiab hauv kev lag luam: Cov dej khib nyiab muaj ntau cov khib nyiab pov tseg, cov hlau hnyav ions thiab cov pa phem organic.Kev siv cov flocculants tuaj yeem tshem tawm cov pa phem no tau zoo thiab ua kom huv cov dej khib nyiab.

Kev kho dej phwj hauv tsev: Cov dej phwj hauv tsev muaj ntau cov organic teeb meem thiab cov khib nyiab pov tseg.Kev siv flocculants tuaj yeem tshem tawm cov pa phem no zoo thiab txhim kho cov dej zoo.

Kev kho dej khib nyiab ua liaj ua teb: Cov dej khib nyiab ua liaj ua teb muaj ntau cov organic teeb meem, ammonia nitrogen thiab lwm yam khoom tsis zoo.Kev siv flocculants tuaj yeem tshem tawm cov pa phem no zoo thiab txhim kho cov dej zoo.

Cov dej khib nyiab muaj: Kev siv cov flocculants tuaj yeem tshem tawm cov khib nyiab pov tseg, cov hlau hnyav ions thiab cov pa phem hauv dej thiab txhim kho cov dej zoo.

Cov dej num ntawm cov dej phwj tuaj feem ntau suav nrog cov hauv qab no:

Kev tshem tawm cov khib nyiab pov tseg: Los ntawm kev ua ntawm flocculants, tshem tawm cov khib nyiab hauv cov dej khib nyiab tau sib sau ua ke kom yooj yim rau sedimentation thiab pom.

Kev tshem tawm cov hlau hnyav ions: Los ntawm kev ua ntawm flocculants, hnyav hlau ions hauv dej khib nyiab tau hloov mus rau hauv hydroxide precipitates kom tshem tau yooj yim.

Kev tshem tawm cov kuab paug organic: Los ntawm kev ua ntawm flocculants, cov pa phem hauv cov dej khib nyiab tau hloov mus rau hauv hydroxide precipitates lossis oxidized rau hauv lwm yam khoom kom tshem tawm yooj yim.

Kev kho pH: Kho cov pH ntawm cov dej khib nyiab los ntawm kev ua ntawm alkali los yog kua qaub los ntxuav cov dej khib nyiab.

Tej yam yuav tsum nco ntsoov thaum siv flocculants:

Xaiv cov flocculant uas tsim nyog: Cov flocculants sib txawv muaj cov haujlwm sib txawv thiab cov teebmeem.Nws yog ib qho tsim nyog los xaiv qhov tsim nyog flocculant raws li qhov xwm txheej tiag tiag.

Tswj cov tshuaj noj ntau npaum li cas: Kev noj tshuaj tsis txaus yuav cuam tshuam rau cov txiaj ntsig, thiab kev noj ntau dhau yuav ua rau cov khoom pov tseg thiab nyiaj txiag poob.Yog li ntawd, nws yog ib qho tsim nyog los tswj cov tshuaj kom tsim nyog raws li qhov xwm txheej tiag tiag.

Do kom huv si: Do cov flocculant thiab dej kom huv si kom tag nrho yaj thiab hnov ​​mob.

Ua tib zoo saib xyuas qhov kub thiab pH tus nqi: Kub thiab pH tus nqi muaj kev cuam tshuam rau cov nyhuv ntawm flocculant thiab yuav tsum tau tswj kom zoo.