Simbi dzinorema iboka rezvinhu zvidiki zvinosanganisira simbi nesimbi dzakadai searsenic, cadmium, chromium, cobalt, copper, iron, lead, manganese, mercury, nickel, tin uye zinc. Maion esimbi anozivikanwa nekusvibisa ivhu, mhepo uye masisitimu emvura uye ane chepfu kunyangwe kana akanyanya kuwanda.
Kune manyuko maviri makuru esimbi dzinorema mumvura, manyuko echisikigo uye manyuko evanhu. Manyuko echisikigo anosanganisira kuputika kwemakomo, kukurwa kwevhu, basa rehupenyu, uye kukanganiswa kwematombo nezvicherwa, nepo manyuko evanhu anosanganisira nzvimbo dzekurasira marara, kupisa mafuta, mvura inoyerera mumigwagwa, tsvina, mabasa ekurima, migodhi, uye tsvina yemumaindasitiri yakaita sedhayi dzemachira. Simbi dzinorema dzinoiswa muboka rechepfu uye dzinokonzera kenza, dzinokwanisa kuungana munyama uye kukonzera zvirwere nezvirwere.
Kubvisa ma ioni esimbi inorema mumvura yakasviba kwakakosha pakuchenesa nharaunda nehutano hwevanhu. Kune nzira dzakasiyana dzakataurwa dzakatsaurirwa kubvisa ma ioni esimbi inorema kubva mumvura yakasviba yakasiyana-siyana. Nzira idzi dzinogona kupatsanurwa muzvikamu zviviri: adsorption, membrane, chemical, electro, uye photocatalytic therapy.
Kambani yedu inogona kupaMumiriri Anobvisa Simbi Yakawanda, Heavy Metal Remove Agent CW-15 imushonga wekubata simbi inorema isingakuvadzi nharaunda uye isingakuvadzi nharaunda. Kemikari iyi inogona kugadzira musanganiswa wakasimba une maion akawanda esimbi anopenya uye anopenya mumvura yakasviba, akadai se: Fe2+, Ni2+, Pb2+, Cu2+, Ag+, Zn2+, Cd2+, Hg2+, Ti+ uye Cr3+, yozosvika pakubvisa mweya wakaoma mumvura. Mushure mekurapwa, Mvura haigone kunyungudutswa nemvura, hapana dambudziko rekusvibiswa kwemuviri.
Zvakanakira ndeizvi:
1. Kuchengetedzwa kwakanyanya. Haisi chepfu, haina hwema hwakaipa, haina chepfu inogadzirwa mushure mekurapwa.
2. Kubvisa kwakanaka. Inogona kushandiswa muhuwandu hwakakura hwe pH, inogona kushandiswa mumvura ine acid kana alkaline. Kana maion esimbi aripo pamwe chete, anogona kubviswa panguva imwe chete. Kana maion esimbi anorema ari muchimiro chemunyu wakaoma (EDTA, tetramine nezvimwewo) usingakwanise kubviswa zvachose nenzira ye hydroxide precipitate, chigadzirwa ichi chinogonawo kuchibvisa. Kana chikadonhedza simbi inorema, hachizodzivirirwi nyore nyore nemunyu unosanganiswa mumvura ine tsvina.
3. Kushanda zvakanaka pakukweshana kwemvura. Kupatsanurwa kwemvura yakasimba zviri nyore.
4. Madhaka esimbi anorema akagadzikana, kunyangwe pa200-250℃ kana kuti akanyungudutsa acid.
5. Nzira iri nyore yekugadzirisa, kubvisa mvura kubva mumarara.
Kana uchifarira zvigadzirwa zvedu, tinokugamuchirai kuti mubvunzeTichiri kukushandirai panguva yeMutambo weChirimo.
Nguva yekutumira: Ndira-18-2023