Munzvimbo yemazuva ano, matambudziko etsvina anokonzerwa nekukura kwemaindasitiri akanyatsogadziriswa zvakanaka kumba nekune dzimwe nyika. Tichitaura nezveizvi, tinofanira kutaura nezvemamiriro ezvinhu ekubvisa ruvara rwetsvina mukuchenesa mvura. Chaizvoizvo, tsvina inogadzirwa nemaindasitiri mazhinji inofanira kushandisa kuchenesa tsvina. Yixing Cleanwater ichakudzidzisa ruzivo rwakakodzera uye mashandisirwo akakodzera muminda yakasiyana.
Zvishandiso zvakasiyana-siyana zvepolymer zvinobvisa ruvara zvinoshandiswa zvakanyanya mumunda wekuchenesa mvura nemarara emumaindasitiri kunze kwenyika, pakati pazvo polyacrylamide (PAM) ndiyo mhando huru yekubvisa ruvara rwemarara emumaindasitiri. Zvichienzaniswa nezvishandiso zvemumunyu zvisingasanganisike, PAM, semhando itsva yekurapa mvura, ine mabhenefiti akawanda: zviri nyore kushandisa, mhedzisiro ye flocculation yakakwira kakapetwa kakawanda kupfuura zvishandiso zvemumunyu zvisingasanganisike; kukurumidza kudonha nekudzika kwemvura, kushanda zvakanaka kwekubvisa matope; mhedzisiro yakakosha yekurapa pane mamwe marara emumaindasitiri; michina iri nyore inodiwa, nzvimbo diki; mutengo wakaderera wekurapa; marara emumaindasitiri anogona kudzokororwa uye kushandiswazve, nezvimwewo.
Kushandiswa kwePAM inobvisa ruvara rweflocculant muminda yakasiyana yekushandisa:
1. Kushandiswa muindasitiri yekugadzira mapepa
Kushandisa PAM ine huremu hwakawanda semushonga unobvisa ruvara kunogona kuwedzera mwero wekunaya kwepigment nezvimwe zvinhu mumvura chena uye kuderedza kurasikirwa kwazvo. Kuwedzera 0.25~0.5% PAM mu pulp kunogona kuwedzera mwero wekunyungudika kwe pulp ne40~80, kuderedza huwandu hwakasimba mumvura chena neinenge 66%, kuwedzera huwandu hwedota mupepa, kuwedzera mwero wekuchengetwa kwepigment dzakadai sevhu chena ne8~18%, uye kuchengetedza 20kg ye pulp patani yepepa. Uyezve, mushure mekushandisa PAM, kusviba kwemvura chena kunodzikira zvikuru, zvichideredza kusvibiswa kwezvakatipoteredza. Semuenzaniso, zvinhu zvakasimba zvakamiswa zvemvura chena yemukaka ine pH=6.8 i3000ppm. Mushure mekurapwa nePAM ne hydrolysis degree ye5~10%, huremu hwemamorekuru hwe5.5~10 miriyoni, uye 500ppm yealuminium sulfate, mvura chena inogona kushandurwa kuita mvura isina ruvara uye yakajeka, uye zvinhu zvakasimba zvakamiswa zvinodzikiswa kusvika pasi pe50ppm.
2. Kushandiswa kwemafuta anobvisa ruvara mukuchenesa mvura
①Kudzivisa kukura uye kuderedza kukura
Mukuchenesa mvura nemarara emaindasitiri, mvura isina kucheneswa inofanira kutanga yanyatsojekeswa. PAM inobvisa ruvara rwemaflocculants nemacoagulants asingasanganisirwe anowanzo shandiswa pamwe chete, izvo zvinogona kuderedza zvakanyanya kushandiswa kwemacoagulants asingasanganisirwe, kudzivirira kuvharika kwemidziyo uye ngura nekuda kwekushandisa zvakanyanya macoagulants asingasanganisirwe, uye kudzivirira kuumbwa kwechiyero. Zvikamu 37.5 zvePAM zvine huremu hwemamorekuru pasi pemiriyoni imwe uye zvikamu makumi mashanu zvesodium tripolyphosphate zvinoshandiswa kugadzira chinodzivirira chiyero, izvo zvinogona kudzivirira chiyero chekupisa kwakanyanya.
②Kurapa tsvina yemumaindasitiri
3. Kushandiswa kwemishonga inobvisa ruvara mukuchenesa mvura yakasviba muindasitiri yeshuga
Muto wenzimbe unotorwa kubva muchina wekudhinda nemafekitori eshuga unowanzova wakasviba uye musanganiswa wawo wakaomawo. Kuti muwane muto wenzimbe wakachena, panofanira kuwedzerwa machemical clarifiers. Kare, ma inorganic decolorizing flocculants aiwanzo shandiswa, asi nekukura kweindasitiri yeshuga, inorganic decolorizing flocculants haachakwanisi kusangana nezvinodiwa zvekugadzira. Mumakore achangopfuura, kushandiswa kwePAM muindasitiri yeshuga kunogona kuwedzera sedimentation rate neka20.
Muchidimbu, patinosarudza polyacrylamide PAM decolorization flocculant zvichienderana nemamiriro chaiwo, tinofanira kuisarudza zvichienderana nemamiriro ezvinhu akasiyana ekushandiswa. Saka, kusarudza polyacrylamide kwakakoshawo zvikuru.
Kana uchida zvigadzirwa zvedu, ndapota inzwa wakasununguka kutaura nesu!
Nguva yekutumira: Chivabvu-27-2025