Musimboti wekushanda kweDiatomite Filter Aid
Basa rekubatsira pakusefa nderekuchinja mamiriro ekuunganidzirwa kwezvikamu, nokudaro zvichichinja kugoverwa kwehukuru hwezvikamu mufiltrate. Diatomite Filter Aida inonyanya kuumbwa neSiO2 yakagadzikana nemakemikari, ine ma micropores akawanda emukati, ichiumba ma hard framework akasiyana-siyana. Munguva yekusefa, diatomaceous earth inotanga yaumba porous filter aid medium (pre coating) pafirita. Kana filtrate inopfuura nepakati pefirita aid, zvikamu zvakasimba zviri mususpension zvinoumba aggregated state, uye saizi yekupararira inochinja. Kusviba kwezvikamu zvikuru kunobatwa uye kunochengetwa pamusoro pechinhu, zvichigadzira saizi yakamanikana yekugovera. Zvinoramba zvichivhara nekubata zvikamu zvine saizi dzakafanana, zvishoma nezvishoma zvichigadzira firita keke ine mamwe ma pores. Sezvo kusefa kuchifambira mberi, tsvina ine saizi diki yezvikamu zvishoma nezvishoma inopinda zvishoma nezvishoma mu diatomaceous earth filter aid medium uye inobatwa. Nekuti nyika ine maburi angangoita 90% uye nzvimbo yakakura chaiyo, kana zvidimbu zvidiki nemabhakitiriya zvikapinda mumaburi emukati nekunze emubatsiro wekusefa, zvinowanzo vharirwa nekuda kwekunyungudika kwemvura nezvimwe zvikonzero, izvo zvinogona kuderedza 0.1 μ Kubviswa kwezvidimbu zvidiki nemabhakitiriya kubva ku m kwawana mhedzisiro yakanaka yekusefa. Muyero wemubatsiro wekusefa unowanzova 1-10% yehuwandu hwakasimba hunobatwa. Kana muyero wacho wakanyanya, zvinokanganisa kuvandudzwa kwekumhanya kwekusefa.
Mhedzisiro yekusefa
Kusefa kweDiatomite Filter Aid kunonyanya kuwanikwa kuburikidza nezviito zvitatu zvinotevera:
1. Mhedzisiro yekuongorora
Uku ndiko kusvina pamusoro pemvura, apo mvura painoyerera nepanyika yediatomaceous, maburi evhu rediatomaceous anenge madiki pane saizi yezvikamu zvetsvina, saka zvikamu zvetsvina hazvigone kupfuura nepakati uye zvinobatwa. Izvi zvinonzi sieving. Kutaura zvazviri, pamusoro pekeke refirita unogona kuonekwa senzvimbo yekusefa ine saizi yakaenzana yepakati pemaburi. Kana dhayamita yezvikamu zvakasimba isiri pasi (kana kuti iri pasi zvishoma) pedhayamita yepore yediatomaceous earth, zvikamu zvakasimba "zvinovharwa" kubva mususpension, zvichiita basa mukusefa pamusoro pemvura.
2. Mhedzisiro yekudzika
Mhedzisiro yekudzika ndeyekuchengetedza kucheneswa kwakadzika. Mukusefa kwakadzika, maitiro ekuparadzanisa anongoitika mukati mechinhu. Zvimwe zvezvimedu zvidiki zvisina kuchena zvinopfuura nepamusoro pekeke rekusefa zvinovharirwa nemigero inomonereka iri mukati mevhu rediatomaceous uye maburi madiki ari mukati mekeke rekusefa. Zvimedu izvi zvinowanzova zvidiki pane zvimedu zviri muvhu rediatomaceous. Kana zvimedu zvikabonderana nemadziro emugero, zvinokwanisika kubva pakuyerera kwemvura. Zvisinei, kana zvichikwanisa kuita izvi zvinoenderana nekuenzana pakati pesimba reinertial uye kuramba kwezvimedu. Kubata uku nekuongororwa kwakafanana uye ndekwekuita kwemakanika. Kugona kusefa zvimedu zvakasimba kunongoenderana nehukuru nechimiro chezvimedu zvakasimba uye maburi.
3. Mhedzisiro yeAdsorption
Mhedzisiro yekudzvinyirirwa kwemvura yakasiyana zvachose nemaitiro maviri ekusefa ataurwa pamusoro apa, uye mhedzisiro iyi inogona kuonekwa sekukwezvwa kwemagetsi, izvo zvinonyanya kutsamira pahunhu hwepamusoro hwezvimedu zvakasimba uye nyika yediatomaceous pachayo. Kana zvimedu zvine maburi madiki emukati zvikabonderana nepamusoro penyika yediatomaceous ine maburi, zvinokwezvwa nemagetsi akasiyana kana kuti zvinoumba macheni emagetsi kuburikidza nekukwezvwa pakati pezvimedu uye zvinonamatira kunyika yediatomaceous, zvese zviri zveadsorption. Mhedzisiro yekudzvinyirirwa kwemvura yakaoma kupfuura miviri yekutanga, uye zvinowanzofungidzirwa kuti chikonzero nei zvimedu zvakasimba zvine maburi madiki emvura zvikabatwa chinokonzerwa ne:
(1) Masimba epakati pemamorekuru (anozivikanwawo sevan der Waals attraction), anosanganisira permanent dipole interactions, induced dipole interactions, uye instantly dipole interactions;
(2) Kuvapo kweZeta potential;
(3) Maitiro ekuchinjana maIon.
Nguva yekutumira: Kubvumbi-01-2024