Polyaluminium Chloride (PAC) ikemikari yakakosha muindasitiri yekugadzira mapepa, ichiita basa rakakosha mumatanho akasiyana ekugadzira mapepa. PAC ndeye coagulant inonyanya kushandiswa kusimudzira kuchengetwa kweakatsetseka zvimedu, mafirita, uye mafiber, nekudaro kuvandudza kushanda kwese uye kunaka kwekugadzira mapepa.
Coagulation uye Flocculation
Basa rekutanga rePAC mukugadzira mapepa ndiko kubatirana kwayo uye flocculation zvivakwa. Munguva yekugadzira mapepa, mvura inosanganiswa ne cellulose fiber kuti iite slurry. Iyi slurry ine huwandu hunokosha hwezvinhu zvakanaka uye zvakanyungudutswa organic zvinhu zvinoda kubviswa kuti zvibudise mapepa emhando yepamusoro. PAC, kana yawedzerwa kune slurry, inobvisa mhosva dzisina kunaka pazvikamu zvakamiswa, zvichiita kuti zviunganidze pamwechete kuita mahombe aggregates kana flocs. Iyi nzira inobatsira zvikuru mukubviswa kwezvikamu izvi zvakanaka panguva yekuchera mvura, zvichiita kuti pave nemvura yakajeka uye inovandudza fiber retention.
Kuwedzeredzwa Kuchengeta uye Drainage
Kuchengetwa kwemafiber uye mafirita kwakakosha mukugadzira mapepa sezvo zvichikanganisa simba rebepa, magadzirirwo, uye hunhu hwese. PAC inonatsiridza kuchengetwa kwezvinhu izvi nekugadzira maflocs makuru anogona kuchengetwa zviri nyore pawaya yemuchina wemapepa. Izvi hazvingokwidzi simba uye kunaka kwebepa asiwo zvinoderedza huwandu hwekurasikirwa kwezvinhu, zvichiita kuti mutengo uchengetedze. Pamusoro pezvo, kukwenenzverwa kwemvura kunofambiswa nePAC kunoderedza huwandu hwemvura mubepa rebepa, nekudaro kuderedza simba rinodiwa pakuomesa nekusimudzira kushanda kwese kwemaitiro ekugadzira mapepa.
Kuvandudzwa kwePepa Hunhu
Kushandiswa kwePAC mukugadzira mapepa kunobatsira zvakanyanya mukuvandudzwa kwemhando yepepa. Nekusimudzira kuchengetwa kwefaindi uye mafizi, PAC inobatsira mukugadzira bepa rine kuumbwa kuri nani, kufanana, uye zvimiro zvepasi. Izvi zvinotungamira kukwenenzverwa kwekudhinda, kutsvedzerera, uye kutaridzika kwebepa rose, zvichiita kuti rive rakakodzera kudhindwa kwemhando yepamusoro uye kurongedza maapplication.
Kuderedzwa kweBOD uye COD muPapermaking Wastewater Treatment
Biochemical Oxygen Demand (BOD) uye Chemical Oxygen Demand (COD) zviyero zvehuwandu hwehupenyu huripo mumvura yakasvibiswa inogadzirwa nekugadzira mapepa. Mazinga epamusoro eBOD neCOD anoratidza huwandu hwakanyanya hwekusvibiswa, izvo zvinogona kukanganisa zvakatipoteredza. PAC inonyatso kudzikisa BOD neCOD mazinga nekubatanidza uye kubvisa organic zvinosvibisa kubva mumvura ine tsvina. Izvi hazvingobatsiri mukusangana nemirairo yezvakatipoteredza asiwo zvinoderedza mitengo yekurapa ine chekuita nekutonga kwetsvina.
Muchidimbu, polyaluminium chloride yakakosha muindasitiri yekugadzira mapepa, ichipa akawanda mabhenefiti anowedzera kushanda kwemaitiro ekugadzira mapepa uye kunaka kwechigadzirwa chekupedzisira. Basa rayo mukubatanidza uye flocculation, kuchengetedza kwakawedzerwa uye kudhiraivha, kudzikiswa kweBOD neCOD, uye kuvandudzwa kwese kwemhando yepepa kunoita kuti ive chinhu chakakosha mukugadzira mapepa kwemazuva ano.
Nguva yekutumira: May-30-2024