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 thiab kev tswj hwm dej qias neeg yog ib feem tseem ceeb ntawm kev tiv thaiv ib puag ncig thiab kev pov tseg cov dej khib nyiab kom tau txais kev saib xyuas ntau dua.

Polyacrylamide (PAM), ib qho polymer linear soluble hauv dej, yog lub luag haujlwm tseem ceeb heev hauv kev kho dej vim nws qhov hnyav molecular siab, soluble hauv dej, kev tswj hwm qhov hnyav molecular thiab ntau yam kev hloov pauv ua haujlwm.

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

Hauv cov dej hauv av, dej saum npoo av thiab dej phwj tuaj, cov khoom tsis huv thiab cov pa phem feem ntau muaj ntau yam khoom me me uas me dhau los ua kom sib haum hauv qab lub ntiajteb txawj nqus. Vim tias cov dej hauv av ntuj tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua, nrog kev pab los ntawm cov tshuaj lom neeg ua kom nrawm dua, kev sib haum ntawm cov thev naus laus zis tau siv rau hauv kev tsim khoom. Piv txwv li, PAM molecule nqus tau ntau yam khoom me me thiab ua rau cov floc loj dua, yog li ntawd, kev sib haum ntawm cov khoom me me tau nrawm dua.

Piv nrog rau cov inorganic flocculant, PAM muaj ntau qhov zoo tseem ceeb: ntau hom rau ntau yam mob, ua haujlwm tau zoo, tsawg dua koob tshuaj, tsawg dua sludge tsim, yooj yim tom qab kho. Qhov no ua rau nws yog cov flocculant zoo tshaj plaws.

Nws yog hais txog qhov ntau npaum li cas ntawm cov tshuaj inorganic coagulant 1/30 txog 1/200.

PAM muag ua ob hom tseem ceeb: hmoov thiab emulsion.

Cov hmoov PAM yooj yim thauj mus los, tab sis tsis yooj yim siv (xav tau cov cuab yeej yaj), thaum cov emulsion tsis yooj yim thauj mus los thiab muaj lub sijhawm khaws cia luv dua.

PAM yaj tau zoo heev hauv dej, tab sis yaj qeeb heev. Kev yaj yuav siv sijhawm ob peb teev lossis ib hmos. Kev sib tov zoo yuav pab yaj PAM. Maj mam ntxiv PAM rau hauv dej uas tau sib xyaw - tsis yog dej rau hauv PAM.

Kev cua sov tuaj yeem ua rau kom cov dej yaj sai dua me ntsis, 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 cov molecular PAM qis tuaj yeem teeb tsa rau hauv 1% lossis siab dua me ntsis.

Cov tshuaj PAM uas tau npaj tseg yuav tsum tau siv rau ob peb hnub, txwv tsis pub qhov kev ua haujlwm ntawm flocculation yuav raug cuam tshuam.