Polyacrylamide (PAM) Thiab Nws Daim Ntawv Thov Hauv Kev Kho Dej

Polyacrylamide (PAM) thiab nws daim ntawv thov hauv kev kho dej

Kev tswj hwm dej paug thiab kev tswj hwm yog ib feem tseem ceeb ntawm kev tiv thaiv ib puag ncig thiab pov tseg kev kho dej khib nyiab tau txais kev saib xyuas ntau dua.

Polyacrylamide (PAM), ib hom dej soluble polymer, yog lub luag haujlwm tseem ceeb hauv kev kho dej vim qhov hnyav molecular, dej-soluble, kev tswj ntawm molecular hnyav thiab ntau yam kev hloov kho.

PAM thiab nws cov derivatives tuaj yeem siv los ua cov flocculants zoo, tus neeg sawv cev thickening, tus neeg saib xyuas txo qis, dav siv hauv kev ua dej, ntawv ua, roj av, thee, geology, kev tsim kho thiab lwm yam kev lag luam.

Hauv cov dej hauv av, dej thiab dej phwj tuaj, impurities thiab cov pa phem feem ntau muaj ntau yam uas me me dhau los nyob hauv qab lub ntiajteb txawj nqus.Vim tias tej yam ntuj tso sedimentation tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua, nrog kev pab ntawm cov tshuaj ua kom lub zog ntawm cov cuab yeej siv tau siv hauv kev tsim khoom.Piv txwv li, PAM molecule absorbs ntawm ob peb hais thiab ua floc loj, yog li ntawd, kev sib hais haum ntawm cov khoom yog nrawm.

Piv nrog rau cov inorganic flocculant, PAM muaj ob peb qhov zoo tseem ceeb: ntau ntau yam rau ntau yam kev mob, kev ua haujlwm siab, ntau npaum li cas, tsawg sludge generated, yooj yim tom qab kho.Qhov no ua rau nws yog qhov zoo tshaj plaws flocculant.

Nws yog hais txog qhov ntau npaum ntawm inorganic coagulant 1/30 txog 1/200.

PAM yog muag hauv ob hom: hmoov thiab emulsion.

Cov hmoov PAM yog ib qho yooj yim rau kev thauj mus los, tab sis tsis yooj yim rau kev siv (yuav tsum tau muab tshem tawm cov khoom siv), thaum lub emulsion tsis yooj yim rau kev thauj mus los thiab muaj lub neej luv luv.

PAM muaj solubility loj hauv dej, tab sis dissolves qeeb heev.Dissolvation nqi ob peb teev los yog hmo ntuj.Kev sib xyaw ua ke zoo yuav pab yaj PAM.Ib txwm maj mam ntxiv PAM rau cov dej sib tov - tsis yog dej rau PAM.

Cov cua sov tuaj yeem ua rau me ntsis nce tus nqi tawg, tab sis qhov kub yuav tsum tsis pub tshaj 60 ° C.

Qhov siab tshaj plaws PAM concentration ntawm cov tshuaj polymer yog 0.5%, qhov concentration ntawm qis molecular PAM tuaj yeem teeb tsa rau hauv 1% lossis siab dua me ntsis.

Npaj PAM tov yuav tsum tau siv nyob rau hauv ob peb hnub, txwv tsis pub qhov kev ua tau zoo ntawm flocculation yuav raug cuam tshuam.