Se coagulant inoshandiswa zvakanyanya mumunda wekurapa mvura,PACinoratidza yakanakisa kugadzikana kwekemikari pane tembiricha yekamuri uye ine yakafara application pH renji. Izvi zvinobvumira PAC kuita nekukurumidza uye kuumba alum maruva kana ichibata hunhu hwakasiyana hwemvura, nekudaro zvinobudirira kubvisa zvinosvibisa kubva mumvura. Mukugadzirwa kwemvura yetsvina mumaindasitiri, PAC ine chekuita nekubviswa kwezvinhu zvinokuvadza senge phosphorus, ammonia nitrogen, COD, BOD uye heavy metal ions. Izvi zvinonyanya kukonzerwa nekugona kwakasimba kwePAC coagulation, iyo inokwanisa kubatanidza zvinhu izvi zvinokuvadza kuita zvidimbu zvihombe kuburikidza neadsorption uye coiling banding, kufambisa kunotevera kugadzirisa uye kusefa.
PAM: chombo chakavanzika chekugadzirisa flocculation
Kubatana nePAC, PAM inoita basa rinokosha mukurapwa kwemvura yakasviba. Se polymer flocculant, PAM inogona kuvandudza iyo flocculation mhedzisiro nekugadzirisa yayo molecular uremu, ionicity uye ionic degree. PAM inogona kuita kuti ma flocs awedzere compact uye kuwedzera sedimentation kumhanya, nekudaro ichivandudza kujeka kwemvura. Kana iyo dosage yePAM isina kukwana kana yakawandisa, iyo flocs inogona kuve yakasununguka, zvichikonzera turbid mvura yemhando.
Kutonga kushanda kwePAC nePAM kuburikidza nefloc mamiriro
Tarisa hukuru hwema flocs: Kana ma flocs ari madiki asi akagovaniswa zvakaenzana, zvinoreva kuti dosage reshiyo yePAM nePAC haina kurongeka. Kuti uvandudze mhedzisiro, dosi yePAC inofanira kuwedzerwa zvakakodzera.
Ongorora maitiro ekugadzirisa: Kana zvakamiswa zvakasimba zvakakura uye sedimentation effect yakanaka, asi mvura yemhando yepamusoro ine turbid, izvi zvinoratidza kuti PAC haina kuwedzerwa zvakakwana kana kuti PAM ratio haina kufanira. Panguva ino, iwe unogona kufunga nezve kuwedzera dosi yePAC uchichengeta chikamu chePAM chisina kuchinjika uye ramba uchiona maitiro.
Chengetedza morphology ye flocs: Kana flocs yakakura asi mvura ine turbid, chiyero chePAM chinogona kuwedzerwa zvakakodzera; kana iyo sediment iri diki uye iyo supernatant iine turbid, inoratidza kuti dosage yePAM haina kukwana, uye dosage yayo inofanira kuwedzerwa zvakakodzera.
Kukosha kwekuyedzwa kwechirongo (inonziwo beaker experiment): Muchirongo bvunzo, kana scum ikawanikwa pamadziro ebeaker, zvinoreva kuti PAM yakawandisa yawedzerwa. Nokudaro, chiyero chayo chinofanira kuderedzwa zvakakodzera.
Ongororo yekujeka: Kana iyo yakamiswa yakasimba kana yakakora, kana iyo supernatant ichinyatsojeka, zvinoreva kuti dosi reshiyo yePAM nePAC inonzwisisika.
Muchidimbu, kuti uwane iyo yakanakisa flocculation effect, iyo dosage yePAC nePAM inofanira kunyatsodzorwa uye kugadziridzwa. Kuburikidza nekutarisa uye kuyedza, isu tinogona kunyatso kutonga mashandisiro ezviviri izvi, nekudaro tichigadzirisa nzira yekuchenesa tsvina. Mumashandisirwo anoshanda, zvinodikanwa kunyatso funga nezve chaiwo emhando yemhando yemvura, zvinodikanwa zvekurapa, zvigadziriso zvemidziyo uye zvimwe zvinhu kuti ugadzire yakasarudzika makemikari dosing chirongwa. Pamusoro pezvo, kutarisisa kwakakwana kunofanirwa kubhadharwa kune kuchengetedza, kutakura uye kugadzirira kwePAC nePAM kuve nechokwadi chekushanda uye kuchengetedzwa kwemishonga.
Nguva yekutumira: Jul-17-2024