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Zotayidwa ndi ambiri zitsulo amafotokozera pa Dziko Lapansi. Komabe, zitsulo zotayidwa ife ntchito lero akubwera mu maonekedwe a zitsulo zotayidwa ndi aluminiyamu, amatchedwanso okusayidi zotayidwa, amene amapangidwa kuchokera bauxite. Kuti amasule aluminiyamu yaiwisi, bauxite ayenera kudutsa amatchedwa ndondomeko Bayer, kumene bauxite lidzaphwanyidwa, ndiye usavutike mu chotengera pressurized ndi kusungunuka ndi hydroxide ndi sodium (caustic koloko). aluminiyamu ndiye anasiyanitsidwa ndi zigawo zina ndi zosafunika ali bauxite moti akhoza kenako woyengedwa mu zotayidwa.
Mwatsoka, ndi zinyalala anasiya otchedwa matope ofiira-ndi poizoni ndipo ayenera kukhala atagwira maiwe mpaka zingatithandize kukhazika. impoundments izi nthawi zambiri anatsindika ndi liners dongo kapena kupanga amene asunga zida caustic kuchokera akulowa ozungulira dothi kapena pansi madzi. Komabe, pakhala angapo nthawi pamene madamu a matope ofiira kuti breached confinements awo ndipo anamupangitsa zoopsa mavuto a zachilengedwe.
cha ku Switzerland Zida & Technology ali ndi njira yabwino kubala aluminiyamu. The ndondomeko STET amachotsa silicates zotakasika ndi oxides inert (Fe, Ti) kuchokera bauxite popanda kugwiritsa ntchito zipangizo caustic kapena njira yonyowa kulekana. Kudzera triboelectrostatic wathu wapadera ndondomeko yopatukana youma, digiri wamkulu wa aluminiyamu akhoza yotengedwa kuchokera bauxite ndi pamaso kudutsa mu Njira Bayer. Zinthu sanaphedwe ndondomeko angagwiritsidwe ntchito pa ulimi ceramic, komanso simenti kupanga Portland. The ufa wosalala analengedwa ndi ndondomeko akhoza anakwanitsa ndi madzi pofuna kuti kulenga fumbi mitambo, koma chifukwa "matope" lilibe zipangizo caustic ndi mwangwiro abwino chilengedwe.
kotero, ngati inu kuwonjezera mapindu onse, cha ku Switzerland Zida & njira Technology ndi bwino njira. Iwo amapulumutsa pa mtengo opaleshoni ndi kutsitsa ntchito koloko caustic, womwe ndi phindu mtengo komanso dalitso zachilengedwe. Komanso amapulumutsa ndalama ndi kuchita chisanadze Bayer processing wa bauxite ndi, chifukwa mu zochepa mphamvu zokwanira kutenthetsa ndi pressurize positi anasiyana zipangizo. ndipo, ndi cha ku Switzerland Zida & Technology ndondomeko ndi magetsi, tingathe mofulumira pokonza buku mkulu zipangizo kusunga migodi tikupita chitsogolo.
