Polyacrylamide(PAM) yog hydrophilic hluavtaws polymer siv dav hauv cov txheej txheem dej. Nws feem ntau yog siv los ua flocculant thiab coagulant, cov tshuaj tua kab mob uas ua rau cov khoom raug tshem tawm hauv dej kom sib sau ua ke rau hauv cov flocs loj, yog li pab lawv tshem tawm los ntawm kev qhia meej lossis pom. Nyob ntawm qhov zoo ntawm cov dej khib nyiab, siv cationic, anionic, lossis non-ionic PAM. Polyacrylamide muaj ntau qhov zoo hauv kev kho dej, suav nrog nws cov txiaj ntsig ntawm ntau yam pH, kub, thiab turbidity ntau yam. Cov nyhuv coagulation tuaj yeem kuaj tau los ntawm kev ntsuas lub thawv los yog ntsuas turbidity.
Polyacrylamide tuaj yeem siv dav hauv kev kho dej hauv kev lag luam, kev kho dej phwj tuaj, kev kho dej khib nyiab, thiab lwm yam. Hauv cov chaw kho dej, polyacrylamide yog siv rau ntau yam txheej txheem, suav nrog kev qhia thawj thiab theem nrab, pom, thiab tshuaj tua kab mob. Thaum lub sij hawm tseem ceeb ntawm cov txheej txheem, nws yog ntxiv rau cov dej nyoos los txhawb qhov kev daws teeb meem ntawm cov khib nyiab, uas tau muab tshem tawm los ntawm sedimentation lossis flotation. Hauv kev nthuav qhia theem nrab, polyacrylamide yog siv los nthuav qhia cov dej kho ntxiv los ntawm kev tshem tawm cov khib nyiab seem thiab adsorbed organic teeb meem.
Lub hauv paus ntsiab lus ntawm kev ua haujlwmpolyacrylamide flocculantyog: tom qab ntxiv cov tshuaj PAM, PAM adsorbs ntawm cov khoom, tsim txuas ntawm lawv. Nyob rau hauv lub qub pas dej ua ke, nws adheres rau tsim loj flocs, thiab lub cev dej yuav turbid nyob rau lub sij hawm no. Tom qab ib tug loj tus naj npawb ntawm flocs loj hlob thiab ua thicker, lawv yuav tsiv teb tsaws thiab dab ntxwg nyoog lub sij hawm, thiab lub sab sauv txheej ntawm cov dej nyoos yuav ntshiab. Cov txheej txheem sib sau ua ke no txhim kho qhov kev daws teeb meem ntawm cov khoom, ua kom yooj yim tshem tawm thaum lub sij hawm nthuav tawm lossis pom. Polyacrylamide feem ntau siv ua ke nrog lwm cov coagulants thiab flocculants kom ua tiav qhov pom kev pom tseeb thiab pom kev ua haujlwm.
Polyacrylamide kuj tseem ua lub luag haujlwm tseem ceeb hauv kev pom dej. Nws feem ntau yog siv los ua cov lim dej ua ntej hauv cov lim dej lossis lwm txoj hauv kev pom lub cev kom tshem tawm cov khib nyiab thiab turbidity. Los ntawm kev txhim kho qhov kev tshem tawm ntawm cov khoom no, polyacrylamide pab ua kom pom tseeb dua, ntshiab dua.
Polyacrylamide yog ib qho ruaj khov thiab tsis muaj tshuaj lom polymer uas tawg los ntawm cov txheej txheem ntuj lossis cov txheej txheem kev kho mob lom. Nws yuav tsum tau muab sau tseg tias ib tug spilled tov yuav ua rau hauv pem teb ua heev nplua, uas yuav ua rau lub caij nplooj zeeg.
Txawm li cas los xij, tus nqi ntawm PAM siv nyob ntawm seb hom dej khib nyiab thiab cov ntsiab lus ntawm cov khoom raug tshem tawm, nrog rau muaj lwm yam tshuaj, acids, thiab cov kab mob hauv dej. Cov yam ntxwv no tuaj yeem cuam tshuam rau cov nyhuv coagulation ntawm PAM, yog li kev hloov kho tsim nyog yuav tsum tau ua thaum siv. PAM cov khoom uas muaj qhov sib txawv molecular hnyav, ionic degrees, thiab ntau npaum li cas yuav tsum tau ua tib zoo xaiv rau ntau hom dej khib nyiab.
Post lub sij hawm: Aug-06-2024