nkhani

Thandizo la sefa ya diatomite makamaka limatchera tinthu tating'onoting'ono tomwe timayimitsidwa pamadzi ndi njira ya sing'anga kudzera m'magawo atatu otsatirawa, kuti akwaniritse cholinga cha kulekanitsa kwamadzi olimba:

1. Sieving effect Izi ndizomwe zimasefa pamwamba. Madziwo akamadutsa mu dziko la diatomaceous, ma pores a dziko lapansi la diatomaceous amakhala ang'onoang'ono kuposa kukula kwa tinthu tonyansa, kotero kuti tinthu tating'onoting'ono sitingadutse ndikulandidwa. Izi zimatchedwa For the screening effect. Ndipotu pamwamba pa keke fyuluta akhoza kuonedwa ngati sieve pamwamba ndi ofanana pafupifupi pore kukula. Pamene m'mimba mwake mwa tinthu tating'onoting'ono tating'onoting'ono (kapena pang'ono pang'ono) m'mimba mwake mwa pores wa diatomite, tinthu tating'onoting'ono tidzakhala "kusefa kuchokera kuyimitsidwa". Patulani, sewerani kusefa pamwamba.

2. Kuzama kwakuya Zotsatira zakuzama ndikusungirako kusefera kozama. Mu kusefa kwambiri, njira yolekanitsa imangochitika "mkati" mwa sing'anga. Gawo la tinthu tating'onoting'ono todetsa tomwe timalowa pamwamba pa keke ya fyuluta timatsekeredwa ndi ma tortuous microporous channels mkati mwa dziko lapansi la diatomaceous ndi pores ang'onoang'ono mkati mwa keke ya fyuluta. Tinthu tating'onoting'ono tamtunduwu nthawi zambiri timakhala tating'ono kwambiri kuposa ma micropores a dziko lapansi la diatomaceous. Pamene particles kugunda khoma la njira, iwo akhoza kusiya madzi otaya. Komabe, ngati zingatheke kufika pamenepa zimadalira mphamvu ya inertial ndi kukana kwa particles. Kulinganiza, kutsekereza kwamtunduwu ndikuwunika ndizofanana m'chilengedwe, zonse zimakhala zamakina. Kutha kusefa tinthu tating'onoting'ono timangogwirizana ndi kukula kwake ndi mawonekedwe a tinthu tolimba ndi pores.

3. Adsorption Kutsatsa kumasiyana kwambiri ndi njira ziwiri zomwe zili pamwambazi. M'malo mwake, izi zitha kuwonedwanso ngati chokopa cha electrokinetic, chomwe chimadalira kwambiri mawonekedwe amtundu wa tinthu tolimba komanso dziko lapansi la diatomaceous. Pamene tinthu tating'onoting'ono timabowo tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono timakopeka ndi zotsutsana. Palinso mtundu wa kukopana pakati pa tinthu tating'onoting'ono kuti tipange masango ndikumamatira ku dziko la diatomaceous. Onsewa ndi a adsorption, ndipo kutsatsa kumakhala kovuta kwambiri kuposa ziwiri zam'mbuyomu. Nthawi zambiri amakhulupirira kuti chifukwa chomwe tinthu tating'onoting'ono tomwe timatulutsa timadzi ta pore timatsekeredwa makamaka chifukwa cha: (1) Intermolecular mphamvu (yotchedwanso van der Waals attraction), kuphatikizapo dipoles Effect, induced dipole effect ndi zotsatira za dipole nthawi yomweyo; (2) kukhalapo kwa Zeta kuthekera; (3) njira yosinthira ion

Kuchokera pamwamba pa ntchito zitatu, mu ukonde kuthamanga kusefera ndondomeko kuyimitsidwa, lotayirira granular diatomite fyuluta thandizo ntchito ngati sing'anga fyuluta, amene makamaka kupereka pores ambiri monga n'kotheka kwa fyuluta sing'anga wosanjikiza, keke fyuluta, ndi kupanga spacer wosanjikiza wa pores amalola kuyimitsidwa kudutsa pores ang'onoang'ono chotchinga wosanjikiza, ndi misampha ya tinthu tating'ono ting'onoting'ono wamadzimadzi ndi misampha yamadzimadzi. sing'anga, kotero kuti olimba ndi madzi amasiyanitsidwa.