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

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

Dej kuab paug tswj thiab kev tswj hwm yog qhov tseem ceeb ntawm kev tiv thaiv ib puag ncig thiab pov tseg cov dej khib nyiab tau them ntau dua thiab ntau mloog.

Polyacrylamide (PAM), ib txoj kab linear soluble polymer, yog lub luag haujlwm siab heev, cov dej-solulation ntawm molecular hnyav thiab ntau yam kev hloov kho.

Pam thiab nws cov derivatives tuaj yeem siv tau raws li cov neeg sawv cev hauv cov nplaim taws, cov tshuaj txo qis, cov ntawv txo qis, roj av, thee, kev tsim kho thiab lwm yam muaj cov kev lag luam.

Hauv av hauv av, dej saum npoo av thiab dej phwj tuaj, impurities thiab cov pa phem feem ntau muaj ntau yam me me los daws txoj kev nqus. Vim hais tias ntuj sedimentation tau ua tsis tau raws li qhov yuav tsum tau ua, nrog kev pab ntawm cov tshuaj kho kom nrawm ntawm kev sib hais haum ntawm kev tsim khoom. Piv txwv li, PAM Molecule nqus ntawm ntau cov lus thiab ua kom muaj froc loj dua, yog li ntawd, kev sib haum xeeb ntawm cov lus tau nrawm.

Piv nrog inorganic flocculant, Pam muaj cov txiaj ntsig tseem ceeb: ntau ntau yam rau ntau yam kev mob, tsis tshua muaj ntau yam tsim tawm, kev kho dua tshiab. Qhov no ua rau nws muaj feem ntau flocculant.

Nws yog hais txog cov tshuaj ntawm inorganic coagulant 1/30 txog 1/200.

Pam yog muag hauv ob daim ntawv tseem ceeb: hmoov thiab emulsion.

Cov hmoov Pam yog yooj yim thauj, tab sis tsis yooj yim siv (cov khoom siv tsis yooj yim), thaum lub emulsion tsis yooj yim thauj thiab muaj lub neej luv luv.

Pam muaj solubility loj hauv dej, tab sis yaj maj mam. Dissollation raug nqi ntau teev lossis thaum hmo ntuj. Cov kev sib xyaw zoo sib xyaw yuav pab yaj cov pam. Nco ntsoov maj mam ntxiv Pam rau stirred dej - tsis dej rau PAM.

Cov cua sov tuaj yeem ua kom me ntsis nce ntxiv kev sib cais, tab sis qhov kub yuav tsum tsis pub tshaj 60 ° C.

Cov paj huam tshaj plaws ntawm cov pa polymer yog 0.5%, kev pom zoo ntawm cov pa roj av tsawg tuaj yeem teeb tsa ua 1% lossis siab dua.

Npaj Pam kev daws yuav tsum tau siv nyob rau hauv ob peb hnub, txwv tsis pub kev ua tau zoo ntawm flocculation yuav cuam tshuam.