Fluoride ine chepfu mineral. Kazhinji inowanikwa mumvura yekunwa. Muyero wazvino wemvura yekunwa wepasi rose wefluoride wakagadzwa neWorld Health Organisation (WHO) ndeye 1.5 ppm. High fluoride mazinga anogona kukonzera mazino uye skeletal fluorosis, saka yakawandisa fluoride inofanira kubviswa mumvura yekunwa. Pakati pezvakasiyanamishonga yekurapa mvurairipo, polyaluminium chloride (PAC) ndiyo yekutanga sarudzo yekubvisa fluoride. PAC's fluoride kubvisa kugona kunobva kune yakasarudzika makemikari zvimiro uye maitiro ekuita. Ngationgororei maitiro ayo, zvakanakira uye mashandisirwo.
Nzira yekuita ye polyaluminium chloride:
Polyaluminium chlorideis inorganic coagulant inogadzirwa nekuita kwealuminium hydroxide uye hydrochloric acid. Inowanzo shandiswa se flocculant mumasisita uye maindasitiri ekurapa mvura maitiro.
Polyaluminium chloride electrostatic adsorb uye kusanganisa nefluoride ions kugadzira akasiyana siyana akatsiga macomplexes. Izvi zvinobva zvawedzera kuumba uye kukonzeresa insoluble aluminium fluoride.
Aluminium ions uye fluoride ions inogonawo kuumba akasiyana-siyana akagadzikana macomplexes (akadai se, kuderedza kuwanda kwemahara fluoride mumvura.
Zvakanakira zvePAC se defluoridant
Kunyanya kushanda zvakanaka: PAC inogona kuwana akakosha ekubvisa fluoride mitengo, kazhinji inodarika 90% pasi pemamiriro akakwana. Kuenzaniswa neyechinyakare aruminiyamu munyu, PAC ine yakakwira chaji density uye inokurumidza flocculation rate. Kushanda kwe defluoridation kunowedzerwa ne30% pachiyero chimwe chete.
Economic: Mari yekurapa inoderedzwa neinopfuura 40% kana ichienzaniswa nehunyanzvi hwakadai sereverse osmosis, uye hapana michina yakaoma inodiwa.
Uye iyo pH application range yakafara (5.0-9.0). Uye turbidity yemvura inogona kuderedzwa panguva imwe chete.
Kugadzirwa kwedhaka rakaderera: Mashoma madhaka anoumbwa, ayo ari nyore kubata.
Zvinyorwa zvePAC se defluoridant:
PAC inoita zvakanakisa paine acidic zvishoma kune kwayakarerekera pH kukosha (inenge 6.5 kusvika 7.5). Kuchengeta iyo yakakodzera pH kukosha kunovimbisa yakanyanya kubviswa fluoride.
Kubviswa kwefluoride kunoenderana nekutanga fluoride concentration uye dosage yecoagulant.
Kushandiswa kwePAC muFluoride Kubvisa
Municipal water treatment: Iva nechokwadi chekuchengetedzwa kwemvura yekunwa nekudzikisa fluoride kusvika kumazinga anogamuchirika.
Kugadziriswa kwemvura yetsvina yemaindasitiri: Bvisa fluoride kubva mutsvina inogadzirwa nemaindasitiri akadai sekugadzira magirazi, kugadzira semiconductor uye zvidyarwa zvefetereza.
Ecological restoration: Bata mvura yepasi uye ivhu rakasvibiswa nefluoride yakasikwa kuchengetedza nharaunda.
Kudzoreredzwa kwekurima uye kwezvakatipoteredza: Bvisa Fluoride ions kubva mumvura yekudiridza kudzivirira kunyudza kwevhu uye kukuvara kwechirimwa.
Polyaluminium chloride imhinduro yakaratidza uye inoshanda yekubvisa fluoride mumashandisi ekurapa emvura. Kugona kwayo kudonhedza uye adsorb fluoride ions inoita kuti ive sarudzo yekutanga munzvimbo dzemasipala nemaindasitiri. Izvo zvakakosha zvikuru kusarudza yakavimbika kemikari mutengesi pakati pevakawandaPAC mutengesis. Iwe unofanirwa kuona hunhu hwavo uye mhando yechigadzirwa. Kana iwe uchida chero rubatsiro mukutenga PAC, ndapota ndizivise. Tinogona kupa mahara samples uye masevhisi ekusarudza. Ndinotarisira kukuona!
Nguva yekutumira: Kubvumbi-03-2025