Pakati pemvura yakasviba inoshandiswa mumaindasitiri, kudhinda nekudhaya mvura yakasviba ndeimwe yemvura yakasviba yakaoma kugadzirisa. Ine maumbirwo akaomarara, chroma yakawanda, huwandu hwakawanda, uye yakaoma kuibvisa. Ndiyo imwe yemvura yakasviba yakaoma uye yakaoma kugadzirisa inosvibisa nharaunda. Kubviswa kwechroma kwakaoma kupfuura mamwe matambudziko.
Pakati penzira dzakawanda dzekuchenesa mvura yakasviba dzinoshandiswa pakudhinda nekudhaya, kushandisa coagulation ndiyo nzira inonyanya kushandiswa mumakambani. Parizvino, zvinhu zvinoshandiswa pakudhinda nekudhaya machira munyika yangu zvinoshandisa aruminiyamu nesimbi. Kuchinja ruvara kwacho hakuna kunaka, uye kana dhayi reactive ikachinja ruvara, hapana kana mhedzisiro yekuchinja ruvara, uye kucharamba kuine ma ions esimbi mumvura yakarapwa, izvo zvichiri kukuvadza muviri wemunhu nenzvimbo yakapoteredza.
Dicyandiamide formaldehyde resin decoloring agent imhando ye organic polymer flocculant, quaternary ammonium salt. Kana ichienzaniswa netsika dzechinyakare dzinobvisa ruvara, ine kumhanya kwe flocculant nekukurumidza, dose shoma, uye inokanganiswa ne salts dziripo, PH uye zvakanakira zvakaita sekushaikwa kwesimba rekupisa.
Dicyandiamide formaldehyde resin decoloring agent imhando yeflocculant inonyanya kushandiswa kubvisa ruvara uye kubvisa COD. Paunenge uchiishandisa, zvinokurudzirwa kugadzirisa pH yemvura yakasviba kuti ive neutral. Ndapota taurai nematekiniki kuti muwane nzira dzekushandisa. Maererano nekubatsirana kwakawanda, mhinduro kubva kuvagadziri vekudhinda nekupenda ndeyekuti dicyandiamide formaldehyde resin decolorizer ine simba guru pakubvisa ruvara rwemvura yakasviba. Chiyero chekubvisa chroma chinogona kusvika kupfuura 96%, uye chiyero chekubvisa COD chasvikawo kupfuura 70%.
Ma organic polymer flocculants akatanga kushandiswa muma1950, kunyanya ma polyacrylamide water treatment flocculants, uye polyacrylamide inogona kukamurwa kuita non-ionic, anionic, uye cationic. Muchinyorwa chino, tichanzwisisa acrylamide polymer dicyandiamide formaldehyde resin decolorizing flocculant iyo inorungwa ne quaternary amine pakati pe cationic organic polymer flocculants.
Dicyandiamide formaldehyde resin decolorizing flocculant inotanga yasanganiswa neacrylamide neformaldehyde aqueous solution pasi pemamiriro ealkaline, yobva yasanganiswa nedimethylamine, yozotonhodzwa yosanganiswa nehydrochloric acid. Chigadzirwa chacho chinosanganiswa nekupwanyika kwemvura uye chinoseferwa kuti chiwane quaternized acrylamide monomer.
Dicyandiamide-formaldehyde condensation polymer decolorizing flocculant yakatanga kushandiswa muma1990. Ine simba rakanaka kwazvo rekubvisa ruvara rwemvura yakasviba ine dhayi. Mukurapa mvura yakasviba ine mavara akawanda uye ine concentration yakawanda, polyacrylamide kana polyacrylamide chete ndiyo inoshandiswa. Polyaluminum chloride flocculant haigone kubvisa pigment zvachose, uye mushure mekuwedzera flocculant inobvisa mavara, inobvisa negative charge yakabatana nemamorekuru edhayi mumvura yakasviba nekupa huwandu hwakawanda hwecations uye nokudaro inogadzirisa kusagadzikana. Pakupedzisira, huwandu hwakawanda hwemafloccules hunoumbwa, hunogona kunwisa mamorekuru edhayi mushure mekudonha nekudzikamisa, kuitira kuti chinangwa chekubvisa ruvara chibudirire.
Mashandisiro e decolorizer:
Nzira yekushandisa flocculant inobvisa ruvara yakafanana neye polyacrylamide. Kunyangwe yekutanga iri muchimiro chemvura, inoda kusanganiswa nemvura isati yashandiswa. Mugadziri anokurudzira kuti isanganiswa nemvura yakasviba ne10%-50%, yozowedzerwa mumvura yakasviba yokurunga zvizere. Gadzira maruva e alum. Zvinhu zvine ruvara mumvura yakasviba ine mavara zvinobviswa mumvura, uye zvinoiswa sedimentation kana air flotation kuti zviparadzaniswe.
Mumaindasitiri ekudhinda nekudhaya, machira nedzimwe nzvimbo, mvura inoshandiswa yakawanda uye mwero wekushandiswazve wakaderera. Nokudaro, kutambisa zviwanikwa zvemvura kwakajairika. Kana nzira iyi ikashandiswa kugadzirisa nekudzokorodza mvura iyi ine mavara akawanda uye ine huwandu hwakawanda hwemvura, haingogone chete kuchengetedza mvura yakawanda yemumaindasitiri, asi inogonawo kuderedza zvakananga kuburitswa kwemvura yakasviba yemumaindasitiri, iyo inokosha zvikuru mukusimudzira budiriro inochengetedza kudhinda, kudhaya uye maindasitiri emachira.
Zvakatorwa kubva muEasy Buy.
Nguva yekutumira: Mbudzi-16-2021