Shanduro yekushandisa yePac mumvura kurapwa kwemvura yerima remagetsi

1. Pre-kurapwa kwekugadzira-kumusoro mvura

Mitemo yemvura yemvura inowanzove nemadhaka, ivhu, humus uye zvimwe zvinosvibiswa uye zvehutachiona, zvine humwe hutachiona hwemvura, ndicho chikonzero chekunyepedzera kwemvura, ruvara uye kunhuhwirira uye kunhuhwirira. Izvi zvakanyanyisa zvinhu zvinhu zvinopinda muIon Exin Chinjants, svibisa iyo resin, deredza iyo yekutsinhana yekuchinjana yeiyo resin, uye kunyange kukanganisa hunhu hwegadziriro yeiyo yekusavimbika. Kurapa kweCogation, kujekeswa kwekugadzirisa uye kujekesa kwechiedza ndiko kubvisa izvi zvakasviba sechinangwa chikuru, zvekuti zvirimo zvekumiswa zvinhu mumvura zvinoderedzwa kusvika 5mg / l, kureva mvura yakajekeswa. Izvi zvinonzi mvura yekunyepedzera. Mushure mekutema, mvura inogona kushandiswa semvura yemubhoti chete apo munyu wakabviswa mumvura inobviswa neIon kuchinjana uye magasi akanyungudutswa mumvura anobviswa nekudziya kana kuputika. Kana izvi zvakasvibiswa zvisina kubviswa kutanga, zvinotevera kurapwa (kusuwa) hakugone kuitwa. Naizvozvo, kurapwa kwezana remvura chinhu chakakosha pakurapa kwemvura.

Maitiro ekunyepedzera emuti wemasimba esimba iri seinotevera: Raw mvura → kanzari → Yakasarudzika uye kujekesa → Kujekeswa. Mabhonzo anowanzo shandiswa muCoagation Procedm chloride, polyferrric sulfate, aluminium sulfate, ferric tulfate, etcric trichloride, etc. Inotevera inonyanya kuunza kushandiswa kwePolandauminum chloride.

Polandaaluminum chloride, inotaurwa pamusoro pePac, yakavakirwa paaluminium ash kana aluminium chivharo, pakudzvinyirira kwakanyanya uye kugadzirwa uye maitiro ekugadzira uye maitiro ezvigadzirwa zvakasiyana, zvigadzirwa zvakatsanangurwa hazvina kufanana. Molecular Formula yePac [Al2 (OH) NCI6-n] M, uko kungave kune chero manhamba pakati pe1 ne5, m ndeyekutanga kwemasumbu ezvose uye miviri yakasimba uye yemvura mafomu.

2.co.gagation mechanism

Pane matatu main miganhu migumisiro yemabiko pane coallidal zvimedu mumvura: kusarerekera kwemagetsi, adsorption kuvhenekera uye kutsvaira. Ndechipi chimwe chezvikamu zvitatu zvakakosha zvinoenderana nemhando uye dosage yeCoagulant, chimiro uye zvemukati zveCollodal zvikamu mumvura, uye phengo yemvura. Iyo Mechanism yekuita yePolandainum chloride yakafanana neye Aluminium Sulfate, uye maitiro eAluminium Sulfate mumvura anoreva maitiro eAl3 + achigadzira akasiyana siyana hydrolyzed mhando.

Polandaaluminum chloride inogona kutorwa seyakasiyana-siyana zvigadzirwa mune maitiro eHydrolysis uye polmerization yealuminium chloride muAl (o) 3 pasi pemamwe mamiriro ezvinhu. Izvo zvinopa zvakananga mumvura muchimiro chevakasiyana-siyana mapepa emhando uye A1 (o) a (s), pasina hydrolyis maitiro eAl3 +.

3. Kushandisa uye kufurira zvinhu

1. Tembiricha yemvura

Tembiricha yemvura ine pesvedzero iri pachena pane yekubatwa kakawanda kurapwa. Kana tembiricha yemvura yakaderera, iyo hydrolysis yeCogulant yakaomesesa, kunyanya kana tembiricha yemvura yakaderera kupfuura mashanu Kana tembiricha yemvura ichinge yakaderera, iyo inogadzirisa zvimedu zvimedu zvinosimbiswa, nguva yekurovera inguva yakareba, uye chiyero chekutanga chinononoka. Tsvagurudzo inoratidza kuti kupisa kwemvura kwe25 ~ 30 ℃ kwakakodzera kwazvo.

2. PH Kukosha kwemvura

Iyo hydrolyis maitiro yePolandain chloride iri maitiro ekuenderera mberi kuburitswa kweH +. Naizvozvo, pasi pehurongwa hwakasiyana pP, pachave nehydrolys dzakasiyana, uye yakanakisa ph kukosha kwePolandauminum chloride kurapwa kunowanzoitika pakati pa6,5 ne75 uye 7.5. Iyo coaguling mari yakakwira panguva ino.

3. Dosage yeCogulant

Kana huwandu hweCogulant yakawedzerwa haina kukwana, iyo inosara tarisiro mumvura ye discharge yakakura. Kana huwandu hwakakura kwazvo, nekuti zvimedu zvecolidalisa mumvura adsorb zvakawandisa, chivakwa chechikamu chengarava chinoshanduka, zvichikonzerwa nemurazvo wakasara mukuwedzera kunowedzera zvakare. Maitiro ekubatanidza haasi nyore makemikari maitiro, saka dosage iri nyore haigone kutsanangurwa zvichienderana nekuverenga, asi zvinofanirwa kutsanangurwa zvichienderana nehunhu hwakakodzera hwekuziva dosage yakakodzera; Kana mvura yemvura ichichinja mwaka, iyo dosage inofanira kugadziriswa maererano.

4. Kutaurirana kwepakati

Mukuita kwekurapwa kwebiriro kana kumwe kurapwa kwekunyepedzera, kana paine imwe huwandu hwematope mumvura, mhedzisiro yekubatwa kwekolation inogona kuvandudzwa zvakanyanya. Inogona kupa nzvimbo yakakura pamusoro, kuburikidza neAdsorption, catalinys uye crystallization core, kuvandudza mhedzisiro yekubatwa kwezana.

Cogulation Yakatsemuka inzira yakashandiswa zvakanyanya kune kurapwa kwemvura panguva ino. Polandauminum chloride indasitiri inoshandiswa seyekuita kwemvura fleculant, neakanaka zvekuita, zvichienzaniswa neyakagadziriswa, 3 ~ 1 ~ 1/2, mutengo unogona kuponeswa 40%. Yakasanganiswa nekushanda kwevhudzi risina kuvharwa uye kushandira kabhoni yemvura, iyo tambo yemvura inoderedzwa zvakanyanya, iyo fungidziro yemasangano yakasvibiswa inovandudzwa, uye huwandu hwesimba reresin hwakawedzerawo, uye mutengo wekushanda wakaderedzwa.