Polyacrylamide(PAM) ipolymer ine huremu hwakawanda inoshandiswa zvakanyanya mukurapa mvura munzvimbo dzakasiyana-siyana. Ine huremu hwakasiyana-siyana hwemamorekuru, maion, uye maumbirwo anokodzera mamiriro akasiyana ekushandiswa uye inogona kutogadziriswa kune mamiriro akasiyana. Kuburikidza nemagetsi ekudzivirira uye polymer adsorption uye bridge, PAM inogona kukurudzira kukurumidza kuungana uye sedimentation yezvikamu zvakamiswa, zvichivandudza kunaka kwemvura. Chinyorwa chino chichaongorora mashandisirwo chaiwo uye mhedzisiro yePAM mukurapa mvura munzvimbo dzakasiyana-siyana.
Mukuchenesa tsvina yemumba, PAM inonyanya kushandiswa pakubvisa tsvina uye kubvisa tsvina. Nekuderedza simba remagetsi uye kushandisa simba rekubatanidza mvura, PAM inogona kukurumidzisa kuungana kwemvura yakasungirirwa kuti igadzire zvidimbu zvikuru. Maflocs aya ari nyore kugadzirisa nekusefa, nokudaro achibvisa tsvina mumvura zvinobudirira uye achizadzisa chinangwa chekuchenesa mvura. Kushandisa PAM kunogona kuvandudza kushanda zvakanaka kwekuchenesa tsvina uye kuderedza mari yekurapa.
Mubasa rekugadzira mapepa, PAM inonyanya kushandiswa semubatsiri wekuchengetedza, mubatsiri wekusefa, muparadziri, nezvimwewo. Nekuwedzera PAM, mwero wekuchengetedza mafiller nemafiber akanaka mupepa unogona kuvandudzwa, zvichideredza kushandiswa kwezvinhu zvakagadziriswa, uye kuwedzera kupfava uye kushanda kwepulp. Pamusoro pezvo, PAM inogona kushanda semugadziri wepolymer usiri wesilicon mukuita kwebleaching, zvichivandudza kuchena nekupenya kwepepa.
Mukurapa mvura yakasviba yemiti ine doro,PAMinonyanya kushandiswa mukuita kwemvura inodonha kubva mumatope. Pakugadzira doro rine zvinhu zvakasiyana-siyana uye nzira dzekurapa mvura yakasviba, zvakakosha kusarudza cationic polyacrylamide ine ionicity yakakodzera uye huremu hwemamorekuru. Kuedza kusarudza kuburikidza nekuyedza kwebeaker ndeimwe yenzira dzinowanzoshandiswa.
Mvura yakasviba yechikafu, ine zvinhu zvayo zvakawanda zve organic uye zvinhu zvakaomeswa, inoda nzira dzakakodzera dzekurapa. Maitiro echinyakare anosanganisira kunyungudika kwemuviri uye kuvirisa biochemical. Zvisinei, mukushandiswa kwazvino, ma polymer flocculants anowanzo dikanwa pakuderedza mvura mumuviri uye mamwe mabasa ekurapa. Mazhinji ema flocculants anoshandiswa mukuita uku zvigadzirwa zve cationic polyacrylamide series. Kusarudza chigadzirwa chakakodzera che polyacrylamide kunoda kufunga nezvemhedzisiro yekushanduka kwemamiriro ekunze (tembiricha) pakusarudzwa kwe flocculant, kusarudza huremu hwakakodzera hwemamorekuru uye kukosha kwekuchaja zvichienderana nehukuru hwe floc hunodiwa nemaitiro ekurapa, nezvimwe zvinhu. Pamusoro pezvo, kutarisisa kunofanirwa kupihwa kune nyaya dzakadai sezvinodiwa zvemaitiro nemidziyo uye kushandiswa kwema flocculants.
Mumvura yakasviba yemagetsi uye yemagetsi, PAM inonyanya kushandiswa senzira yekudziviriraFlocculantuye inokonzeresa mvura. Nekuderedza simba remagetsi uye kushandisa nzira dzinoita kuti mvura itsvedzerere, PAM inogona kukurumidza kuungana nekugadzika ma ions esimbi inorema mumvura yakasviba. Mukuita uku, zvinowanzodiwa kuwedzera sulfuric acid mumvura yakasviba kuti ugadzirise pH value kusvika 2-3 wobva wawedzera chinodzikisa mvura. Mutangi rinotevera re reaction, shandisa NaOH kana Ca(OH)2 kuti ugadzirise pH value kusvika 7-8 kuti ugadzire Cr(OH)3 precipitates. Wobva wawedzera coagulant kuti ubvise Cr(OH)3. Kuburikidza nemaitiro aya ekurapa, PAM inobatsira kuvandudza kushanda kwemagetsi uye electroplating water treatment uye kuderedza kukuvadzwa kwema ions esimbi inorema kunharaunda.
Nguva yekutumira: Chikumi-04-2024