Makemikari ekurapa tsvina

Kurapa mvura yakasviba inzira yakaoma inoda kushandiswa kwemakemikari akasiyana-siyana kubatsira kuchenesa mvura. Flocculants ndeimwe yemakemikari akakosha anoita basa rakakosha mukurapa tsvina. Chinyorwa chino chichatsanangura zvakadzama huwandu hwemakemikari ekurapa tsvina, maindasitiri ekushandisa flocculants mukurapa tsvina, basa remakemikari etsvina, uye matanho ekudzivirira kushandisa flocculants.

Chiyero chemakemikari ekuchenesa tsvina chinoenderana nemhando yetsvina, maitiro ekuchenesa uye mamiriro chaiwo. Mienzaniso yemiyero yemamwe makemikari ekuchenesa tsvina akajairika:

Polyaluminum chloride (PAC):Inowanzoshandiswa seflocculant, inogona kuita zvine negative charge colloidal particles kuti igadzire settled hydroxide micelles kubvisa suspended solids uye heavy metal ions. Mumamiriro ezvinhu akajairwa, dosage patani yemvura isina kubikwa inenge magiramu makumi maviri, asi dosage chaiyo inofanira kugadziriswa zvichienderana nehunhu hwemvura isina kubikwa uye mamiriro ekushanda kwayo.

Polyacrylamide (PAM):Inoshandiswa semushonga unosunga mvura kuti iwedzere kuomarara uye kugadzikana kwefloc. Kazhinji inoshandiswa pamwe chete nepolyaluminium chloride, chiyero patani yemvura isina kubikwa chingangoita magiramu mashoma, asi chiyero chaicho chinofanira kugadziriswa nemazvo zvichienderana nemamiriro ezvinhu uye mhando dzezvinosvibisa.

Flocculants inoshandiswa zvakanyanya mukurapa mvura yakasviba, kunyanya kusanganisira zvikamu zvinotevera:

Kurapa mvura yakasviba mumaindasitiri: Mvura yakasviba mumaindasitiri ine huwandu hwakawanda hwezvinhu zvakaoma zvakasungirirwa, maion esimbi inorema uye zvinosvibisa zvipenyu. Kushandisa flocculants kunogona kubvisa zvinobudirira tsvina iyi uye kuchenesa mvura yakasviba.

Kucheneswa kwetsvina yemumba: Tsvina yemumba ine zvinhu zvakawanda zve organic uye zvinhu zvakanyungudutswa. Kushandisa flocculants kunogona kubvisa tsvina iyi zvinobudirira uye kunatsiridza kunaka kwemvura.

Kurapa mvura yakasviba yepurazi: Mvura yakasviba yepurazi ine huwandu hwakawanda hwezvinhu zvakasikwa, ammonia nitrogen nezvimwe zvinhu zvinokuvadza. Kushandisa flocculants kunogona kubvisa tsvina iyi zvinobudirira uye kuvandudza kunaka kwemvura.

Mvura yakasviba inoshandiswa mumaindasitiri: Kushandisa zvinhu zvinosanganisa mvura zvinogona kubvisa zvinhu zvakaoma zvakasungirirwa, maion esimbi inorema uye tsvina yeorganic mumvura uye kuvandudza kunaka kwemvura.

Mabasa emakemikari etsvina anosanganisira zvikuru mapoka anotevera:

Kubviswa kwezvinhu zvakasungirirwa: Kuburikidza nekushanda kwezvinotsvedza, zvinhu zvakasungirirwa mumvura yakasviba zvinounganidzwa kuita zvikamu kuti zvive nyore kunyungudutsa uye kusefa.

Kubviswa kwemaion esimbi inorema: Kuburikidza nekushanda kwemaflocculant, maion esimbi inorema mumvura yakasviba anoshandurwa kuita hydroxide precipitates kuti zvive nyore kubvisa.

Kubviswa kwezvinosvibisa zvipenyu: Kuburikidza nekushanda kwezvinotsvedza, zvinosvibisa zvipenyu mumvura yakasviba zvinoshandurwa kuita hydroxide precipitates kana kuti oxidized kuita zvimwe zvinhu kuti zvive nyore kubvisa.

Kugadziriswa kwepH: Kugadzirisa pH yemvura yakasviba kuburikidza nekushanda kwealkali kana acid kuchenesa mvura yakasviba.

Zvinhu zvekucherechedza pakushandisa flocculants:

Sarudza mushonga weflocculant wakakodzera: Mishonga yeflocculant yakasiyana ine mabasa akasiyana uye mhedzisiro. Zvakakosha kusarudza mushonga weflocculant wakakodzera zvichienderana nemamiriro chaiwo.

Dzora mushonga wemushonga: Kusakwana kwemushonga kuchakanganisa mhedzisiro yacho, uye muyero wakawandisa uchakonzera kurasikirwa nemari. Saka, zvakakosha kudzora muyero wakakodzera zvichienderana nemamiriro ezvinhu chaiwo.

Kurunga zvakanaka: Kurunga flocculant wodiridza zvakanaka kuti inyungudike zvizere uye iite seyakasiyana.

Tembiricha ne pH: Tembiricha ne pH zvine chekuita ne flocculant uye zvinofanirwa kudzorwa nokungwarira.