Polyacrylamide, hu ua PAM, yog ib qho polymer uas muaj molecular hnyav heev. Vim nws cov qauv tshuaj lom neeg tshwj xeeb, PAM siv dav hauv ntau yam lag luam. Hauv cov teb xws li kev kho dej, roj av, kev khawb av thiab kev ua ntawv, PAM siv ua cov flocculant zoo los txhim kho cov dej zoo, ua kom cov kev ua haujlwm ntawm kev khawb av zoo dua, thiab txhim kho cov ntawv zoo. Txawm hais tias PAM muaj qhov solubility tsawg hauv dej, los ntawm cov txheej txheem yaj tshwj xeeb, peb tuaj yeem yaj nws hauv dej kom ua haujlwm tau zoo hauv ntau yam kev siv hauv kev lag luam. Cov neeg ua haujlwm yuav tsum tau ua tib zoo saib xyuas nws cov lus qhia ua haujlwm tshwj xeeb ua ntej siv. thiab kev ceev faj kom ntseeg tau tias cov khoom ua haujlwm tau zoo thiab kev nyab xeeb ntawm tus kheej.
Cov tsos thiab cov khoom siv tshuaj lom neeg ntawm Polyacrylamide
Feem ntau PAM muag ua hmoov los yog emulsion. Hmoov PAM ntshiab yog hmoov dawb mus rau daj daj me me uas me ntsis hygroscopic. Vim nws qhov hnyav molecular siab thiab viscosity, PAM yaj qeeb qeeb hauv dej. Yuav tsum siv cov txheej txheem yaj tshwj xeeb thaum yaj PAM kom ntseeg tau tias nws yaj tag nrho hauv dej.
Yuav siv PAM li cas
Thaum siv PAM, koj yuav tsum xub xaiv ib qhotsim nyogCov khoom ua kom cov dej khovnrogCov lus qhia tshwj xeeb raws li cov xwm txheej thiab cov kev xav tau ntawm daim ntawv thov. Qhov thib ob, nws yog qhov tsim nyog heev los ua qhov kev sim lub thawv nrog cov qauv dej thiab cov flocculant. Thaum lub sijhawm flocculation, qhov ceev thiab lub sijhawm sib tov yuav tsum tau tswj kom tau txais qhov zoo tshaj plaws flocculation effect. Tib lub sijhawm, cov koob tshuaj ntawm flocculant yuav tsum tau kuaj xyuas thiab kho tsis tu ncua kom ntseeg tau tias qhov zoo ntawm dej thiab kev khawb av thiab lwm yam txheej txheem ua tau raws li qhov yuav tsum tau ua. Tsis tas li ntawd, ua tib zoo saib xyuas cov tshuaj tiv thaiv ntawm flocculant thaum siv, thiab ua raws li cov kev ntsuas kom raug yog tias muaj cov xwm txheej tsis zoo tshwm sim.
Nws siv sijhawm ntev npaum li cas los ua kom tiav tom qab yaj?
Thaum PAM yaj tag, nws lub sijhawm ua haujlwm feem ntau yog cuam tshuam los ntawm qhov kub thiab lub teeb. Ntawm chav sov, lub sijhawm siv tau ntawm PAM kua feem ntau yog 3-7 hnub nyob ntawm hom PAM thiab qhov concentration ntawm cov kua. Thiab nws zoo tshaj plaws siv tsis pub dhau 24-48 teev. PAM kua yuav poob qhov ua haujlwm hauv ob peb hnub yog tias raug tshav ntuj ntev. Qhov no yog vim, nyob rau hauv qhov kev ua ntawm tshav ntuj, PAM molecular saw yuav tawg, ua rau txo qis nws cov nyhuv flocculation. Yog li ntawd, PAM kua yaj yuav tsum khaws cia rau hauv qhov chaw txias thiab siv sai li sai tau.
Cov kev ceev faj
Koj yuav tsum tau them sai sai rau cov hauv qab no thaum siv PAM:
Cov Teeb Meem Kev Nyab Xeeb: Thaum siv PAM, yuav tsum hnav cov khoom siv tiv thaiv tus kheej kom zoo, xws li tsom iav tiv thaiv tshuaj lom neeg, tsho tiv thaiv chav kuaj mob, thiab hnab looj tes tiv thaiv tshuaj lom neeg. Tib lub sijhawm, tsis txhob kov cov hmoov PAM lossis cov tshuaj lom neeg ntawm daim tawv nqaij.
Kev Nchuav thiab Tshuaj Tsuag: PAM ua rau nplua heev thaum sib xyaw nrog dej, yog li ceev faj ntxiv kom tiv thaiv cov hmoov PAM kom tsis txhob nchuav lossis raug txau ntau dhau rau hauv av. Yog tias nchuav lossis txau tsis raug, nws yuav ua rau hauv av nplua thiab ua rau muaj kev phom sij rau kev nyab xeeb ntawm cov neeg ua haujlwm.
Kev Ntxuav thiab Kev Sib Chwv: Yog tias koj cov khaub ncaws lossis daim tawv nqaij raug hmoov PAM lossis cov tshuaj lom, tsis txhob yaug ncaj qha nrog dej. Maj mam so hmoov PAM tawm nrog phuam qhuav yog txoj hauv kev nyab xeeb tshaj plaws.
Kev Khaws Cia thiab Siv Tau Ntev: Cov PAM uas muaj hmoov av yuav tsum khaws cia rau hauv lub thawv uas tsis muaj teeb ci thiab tsis txhob raug tshav ntuj thiab cua kom nws ua haujlwm tau zoo. Kev raug tshav ntuj thiab cua ntev ntev yuav ua rau cov khoom puas tsuaj lossis lwj. Yog li ntawd, yuav tsum xaiv cov txheej txheem ntim khoom thiab khaws cia kom zoo kom ntseeg tau tias cov khoom zoo thiab ruaj khov. Yog tias cov khoom tsis raug cai lossis tas sijhawm, yuav tsum kho nws raws sijhawm thiab hloov nrog cov khoom tshiab kom tsis txhob cuam tshuam rau kev siv thiab kev nyab xeeb ib txwm muaj. Tib lub sijhawm, yuav tsum tau saib xyuas lub sijhawm khaws cia ntawm cov khoom thiab lees paub nws cov txiaj ntsig ua ntej siv los ntawm kev sim lossis kev tshuaj xyuas kom ntseeg tau tias nws ua tau raws li cov qauv.
Lub sijhawm tshaj tawm: Lub Kaum Hli-30-2024