Polyacrylamide(PAM) ipurasitiki ye organic polymer inoshandiswa zvakanyanya mukurapa mvura. Zviratidzo zvehunyanzvi zvePAM zvinosanganisira ionicity, hydrolysis degree, molecular weight, nezvimwewo. Zviratidzo izvi zvine simba guru pamhedzisiro ye flocculation yekurapa mvura. Kunzwisisa zviratidzo izvi kuchakubatsira kusarudza zvigadzirwa zvePAM nekukurumidza nezvinodiwa.
Kusurukirwa
Kusagadzikana kunoreva kana PAM molecular chain iine positive kana negative charges. Mwero weionization une simba guru pamhedzisiro yeflocculation yekurapa mvura. Kazhinji, iyo ionicity yakakwira, ndiyo inova nani flocculation effect. Izvi zvinodaro nekuti maPAM molecular chains ane ionic yakawanda anotakura charges dzakawanda uye anogona kunyudza zviri nani snuggles stucculents, zvichiita kuti dziungane pamwe chete kuti dzigadzire flocs hombe.
Polyacrylamide inonyanya kukamurwa kuva mhando dzeanionic (APAM), cationic (CPAM), uye non-ionic (NPAM) zvichienderana neionicity yadzo. Mhando nhatu idzi dzePAM dzine mhedzisiro dzakasiyana. Mukushandiswa kwadzo, ionicicity yakakodzera inofanirwa kusarudzwa zvichienderana nezvinhu zvakaita se pH kukosha kwemvura yakabatwa, electronegativity, uye huwandu hwezvikamu zvakamiswa. Semuenzaniso, kune mvura yakasviba ine acidic, PAM ine cationicity yakakwira inofanira kusarudzwa; kune mvura yakasviba ine alkaline, PAM ine anionicity yakakwira inofanira kusarudzwa. Pamusoro pezvo, kuti uwane flocculation effect iri nani, inogonawo kuwanikwa nekusanganisa PAM nemadhigirii akasiyana eionic.
Dhigirii reHydrolysis (yeAPAM))
Dhigirii rehydrolysis yePAM rinoreva dhigirii rehydrolysis yemapoka emaamide ari pacheni yayo yemamorekuru. Dhigirii rehydrolysis rinogona kuiswa muzvikamu zve hydrolysis yakaderera, yepakati, uye yepamusoro. PAM ine dhigirii dzakasiyana dzehydrolysis ine hunhu hwakasiyana uye mashandisirwo akasiyana.
PAM ine mwero wakaderera we hydrolysis inonyanya kushandiswa pakukora uye kudzikamisa. Inowedzera viscosity yemushonga, zvichiita kuti zvidimbu zvakasungirirwa zvipararire zviri nani. Inoshandiswa zvakanyanya mukuchera mvura, machira, uye muindasitiri yezvikafu.
PAM ine hydrolysis yepakati ine simba rakanaka rekugadzirisa mvura uye yakakodzera kushandiswa kwakasiyana-siyana kwekugadzirisa mvura. Inogona kuunganidza zvidimbu zvakasungirirwa kuti zvigadzire maflocs makuru kuburikidza nekunyungudutsa nekubatanidza, zvichiita kuti zvigadzikane nekukurumidza. Inoshandiswa zvakanyanya mukurapa tsvina yemumaguta, kurapwa kwemvura yakasviba mumaindasitiri, uye kushaya mvura yakakwana kubva mumatope.
PAM ine mwero wepamusoro we hydrolysis ine hunyanzvi hwakasimba hwekunyungudutsa uye kubvisa ruvara uye inowanzoshandiswa mukudhinda nekudhaya mvura yakasviba nedzimwe nzvimbo. Inogona kunyungudutsa nekubvisa zvinobudirira zvinhu zvinokuvadza mumvura yakasviba, senge dhayi, simbi dzinorema, uye organic matter, kuburikidza nechaja uye mapoka ekunyungudutsa ari pa polymer chain.
Kurema kweMorekuru
Kurema kwemamorekuru ePAM kunoreva kureba kwecheni yemamorekuru ayo. Kazhinji, kana huremu hwemamorekuru hwakakwira, zvinoita kuti PAM iite flocculation effect. Izvi zvinodaro nekuti PAM ine huremu hwakawanda inogona kunyudza zviri nani zvidimbu zvakamiswa, zvichiita kuti zviungane pamwe chete kuti zvigadzire mafloc akakura. Panguva imwe chete, PAM ine huremu hwakawanda ine kugona kuri nani kwekubatanidza nekubatanidza, izvo zvinogona kuvandudza simba nekugadzikana kwefloc.
Mukushanda kwaro, huremu hwemamorekuru ePAM hunoshandiswa pakurapa tsvina yemumaguta uye pakurapa mvura yakasviba mumaindasitiri hunoda zvinodiwa zvakanyanya, zvinowanzova kubva pamamiriyoni kusvika kumakumi emamiriyoni. Huremu hwemamorekuru hunodiwa nePAM hunoshandiswa pakurapa tsvina hwakaderera, kazhinji hunobva pamamiriyoni kusvika kumakumi emamiriyoni.
Mukupedzisa, zviratidzo zvakaita se ionicity, hydrolysis degree, uye molecular weight zvinhu zvikuru zvinokanganisa kushandiswa kwePAM mukurapa mvura. Pakusarudza zvigadzirwa zvePAM, unofanirwa kufunga nezvemhando yemvura uye kusarudza zvinoenderana nezviratidzo zvePAM kuti uwane mhedzisiro yakanaka ye flocculation, kuvandudza kushanda zvakanaka, uye mhando yekurapa mvura.
Nguva yekutumira: Chikumi-28-2024