Cov tshuaj kho dej phwj tuaj

Kev kho dej khib nyiab yog ib qho txheej txheem nyuaj uas yuav tsum tau siv ntau yam tshuaj los pab ua kom dej huv. Cov tshuaj flocculants yog ib qho ntawm cov tshuaj tseem ceeb uas ua lub luag haujlwm tseem ceeb hauv cov txheej txheem kho dej khib nyiab. Tsab xov xwm no yuav qhia meej txog kev siv cov tshuaj kho dej khib nyiab, kev siv cov tshuaj flocculants hauv kev kho dej khib nyiab, lub luag haujlwm ntawm cov tshuaj dej khib nyiab, thiab kev ceev faj rau kev siv cov tshuaj flocculants.

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

Polyaluminium chloride (PAC):Feem ntau siv ua flocculant, nws tuaj yeem cuam tshuam nrog cov khoom me me uas muaj cov nqi tsis zoo los tsim cov hydroxide micelles uas nyob hauv dej kom tshem tawm cov khoom khov thiab cov hlau hnyav. Hauv qhov xwm txheej ib txwm muaj, cov koob tshuaj ib tuj ntawm cov dej nyoos yog li kaum tawm grams, tab sis cov koob tshuaj tiag tiag yuav tsum tau hloov kho raws li qhov zoo ntawm cov dej nyoos thiab cov xwm txheej ntawm cov txheej txheem.

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

Cov tshuaj flocculants siv dav hauv kev kho dej khib nyiab, feem ntau suav nrog cov pawg hauv qab no:

Kev kho cov dej khib nyiab hauv kev lag luam: Cov dej khib nyiab hauv kev lag luam muaj ntau cov khoom seem, cov hlau hnyav thiab cov pa phem organic. Kev siv cov flocculants tuaj yeem tshem tawm cov pa phem no thiab ntxuav cov dej khib nyiab.

Kev kho dej phwj hauv tsev: Cov dej phwj hauv tsev muaj ntau yam organic matter thiab cov khoom seem uas raug tshem tawm. Kev siv cov flocculants tuaj yeem tshem tawm cov pa phem no thiab txhim kho cov dej kom zoo.

Kev kho cov dej khib nyiab hauv liaj teb: Cov dej khib nyiab hauv liaj teb muaj ntau cov organic matter, ammonia nitrogen thiab lwm yam tshuaj lom neeg. Kev siv cov flocculants tuaj yeem tshem tawm cov pa phem no thiab txhim kho cov dej kom zoo.

Cov dej khib nyiab hauv kev lag luam: Kev siv cov flocculants tuaj yeem tshem tawm cov khoom khov kho, cov hlau hnyav thiab cov pa phem hauv dej thiab txhim kho cov dej zoo.

Cov haujlwm ntawm cov tshuaj ntxuav dej phwj feem ntau suav nrog cov pawg hauv qab no:

Kev Tshem Tawm Cov Khoom Uas Raug Tshem Tawm: Los ntawm kev ua haujlwm ntawm cov flocculants, cov khoom uas raug tshem tawm hauv cov dej khib nyiab raug sib sau ua ke ua pawg kom pab txhawb kev tso dej thiab kev lim dej.

Tshem tawm cov hlau hnyav ions: Los ntawm kev ua haujlwm ntawm flocculants, cov hlau hnyav ions hauv cov dej khib nyiab raug hloov pauv mus rau hauv hydroxide precipitates rau kev tshem tawm yooj yim.

Kev Tshem Tawm Cov Pa phem Organic: Los ntawm kev ua haujlwm ntawm flocculants, cov pa phem organic hauv cov dej khib nyiab raug hloov mus ua hydroxide precipitates lossis oxidized rau lwm yam tshuaj rau kev tshem tawm yooj yim.

Kev kho pH: Kho qhov pH ntawm cov dej khib nyiab los ntawm kev ua haujlwm ntawm alkali lossis acid los ntxuav cov dej khib nyiab.

Cov ntsiab lus tseem ceeb thaum siv cov flocculants:

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

Tswj cov tshuaj kom ntau: Yog tias noj tshuaj tsis txaus ces yuav ua rau cov tshuaj tsis zoo, thiab yog noj ntau dhau ces yuav ua rau pov tseg thiab poob nyiaj txiag. Yog li ntawd, yuav tsum tswj cov tshuaj kom ntau raws li qhov xwm txheej tiag tiag.

Do kom huv si: Do cov flocculant thiab dej kom huv si kom yaj tag thiab ua rau muaj kev cuam tshuam.

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