Polyacrylamide(PAM) inonzi hydrophilic synthetic polymer inoshandiswa zvakanyanya mukugadzirisa mvura. Iyo inonyanya kushandiswa se flocculant uye coagulant, chemikemikari inoita kuti zvimedu zvakamiswa mumvura zviunganidzwe kuita flocs huru, zvichibatsira kubviswa kwavo kuburikidza nekujekesa kana kusefa. Zvichienderana nemhando yemvura yakasviba, shandisa cationic, anionic, kana isiri-ionic PAM. Polyacrylamide inopa akawanda mabhenefiti mukurapa kwemvura, kusanganisira kushanda kwayo pamusoro pehupamhi hwepH, tembiricha, uye turbidity renji. Iyo coagulation mhedzisiro inogona kuedzwa uchishandisa Jar bvunzo kana turbidity kuyerwa.
Polyacrylamide inogona kushandiswa zvakanyanya mumaindasitiri emvura kurapwa, kurapa kwetsvina, kurapwa kwemvura yetsvina, etc. Mumiti yekurapa mvura, polyacrylamide inoshandiswa mumhando dzakasiyana siyana, kusanganisira kujekeswa kwepuraimari uye kwechipiri, kusefa, uye disinfection. Munguva yekutanga kujekesa maitiro, inowedzerwa kumvura yakasvibirira kukurudzira kugadzirisa kwezvakarembera zvakamira, izvo zvinozobviswa ne sedimentation kana flotation. Mukujekesa kwechipiri, polyacrylamide inoshandiswa kuenderera mberi nekujekesa mvura yakacheneswa nekubvisa zvakasara zvakamira zvakasimba uye adsorbed organic matter.
Nheyo yekushanda yepolyacrylamide flocculantndiko: mushure mekuwedzera iyo PAM mhinduro, PAM adsorbs pane zvimedu, kugadzira mabhiriji pakati pavo. Mune dziva rekutanga, inonamatira kuumba flocs yakakura, uye muviri wemvura unova wakasviba panguva ino. Mushure mokunge nhamba yakawanda yezvipembenene ichikura uye inowedzera, inotama uye inonyura zvishoma nezvishoma nekufamba kwenguva, uye chikamu chepamusoro chemvura yakasvibirira chichave chakajeka. Iyi nzira yekuunganidza inovandudza maitiro ekugadzirisa zvidimbu, zvichiita kuti zvive nyore kubvisa panguva yekujekesa kana kusefa. Polyacrylamide inowanzoshandiswa pamwe chete nemamwe macoagulants uye flocculants kuti iwane kujekesa kwakakwana uye kusefa kuita.
Polyacrylamide inoitawo basa rakakosha mukusefa kwemvura. Inowanzo shandiswa sefa-sefa mumasefa kana dzimwe nzira dzekusefa kwemuviri kubvisa zvakamiswa zvakasimba uye turbidity. Nekuvandudza kubviswa kwezvikamu izvi, polyacrylamide inobatsira kuve nechokwadi chakajeka, chakachena filtrate.
Polyacrylamide i polima yakagadzikana uye isina chepfu inoputsika kuburikidza nemasikirwo echisikigo kana nzira dzebhayoloji kurapwa. Izvo zvinofanirwa kucherechedzwa kuti mhinduro yakadururwa ichaita kuti pasi pave nekutsvedza zvakanyanya, izvo zvinogona kutungamira mukudonha.
Zvisinei, huwandu hwePAM hunoshandiswa hunoenderana nemhando yemvura yakasvibiswa uye zvinyorwa zvezvimedu zvakamiswa zvakasimba, pamwe nekuvapo kwemamwe makemikari, acids, uye zvinosvibisa mumvura. Izvi zvinhu zvinogona kukanganisa coagulation mhedzisiro yePAM, saka zvinonzwisisika zvinogadziriswa zvinoda kuitwa panguva yekushandiswa. PAM zvigadzirwa zvine huremu hwakasiyana hwemamorekuru, ionic madhigirii, uye dosi zvinofanirwa kunyatsosarudzwa kune akasiyana marudzi etsvina.
Nguva yekutumira: Aug-06-2024