Disassembling smartphones thiaj li yuav paub seb cov khoom uas lawv tau ua los ntawm thiab lawv cov kev kho tau zoo li cas tsis yog qhov tsis tshua muaj hnub no - tsis ntev los no tshaj tawm lossis cov khoom tshiab uas tau muag muag feem ntau raug rau cov txheej txheem no. Txawm li cas los xij, lub hom phiaj ntawm kev sim los ntawm cov kws tshawb fawb hauv University of Plymouth tsis yog txheeb xyuas seb lub chipset lossis lub koob yees duab module tau nruab rau hauv cov cuab yeej sim. Thiab raws li qhov kawg, lawv xaiv tsis yog tus qauv iPhone tshiab. Thiab tag nrho vim tias txoj kev tshawb no tau tsim los tsim cov tshuaj muaj pes tsawg leeg ntawm cov khoom siv hluav taws xob niaj hnub no.
Qhov kev sim pib nrog lub xov tooj smartphone raug crushed nyob rau hauv ib tug blender, tom qab uas lub resulting me me tau tov nrog ib tug haib oxidizing neeg sawv cev - sodium peroxide. Kev soj ntsuam ntawm cov tshuaj muaj pes tsawg leeg ntawm cov khoom sib xyaw no pom tau tias lub xov tooj kuaj tau muaj 33 g ntawm hlau, 13 g ntawm silicon, 7 g ntawm chromium thiab lwm yam khoom me me. Txawm li cas los xij, cov kws tshawb fawb pom tias ntxiv rau lawv, cov khoom siv crushed muaj 900 mg ntawm tungsten, 70 mg ntawm cobalt thiab molybdenum, 160 mg ntawm neodymium, 30 mg ntawm praseodymium, 90 mg ntawm nyiaj thiab 36 mg ntawm kub.
Txhawm rau rho tawm cov ntsiab lus tsis tshua muaj, cov khoom lag luam loj yuav tsum tau muab rho tawm los ntawm lub ntiaj teb lub plab, uas ua rau muaj kev puas tsuaj rau peb lub ntiaj teb, cov kws tshawb fawb tau sau tseg. Tsis tas li ntawd, cov hlau xws li tungsten thiab cobalt feem ntau tuaj ntawm thaj chaw tsis sib haum xeeb hauv Africa. Txhawm rau tsim ib lub cuab yeej, nws yog qhov yuav tsum tau rho tawm qhov nruab nrab ntawm 10-15 kg ntawm ore, suav nrog 7 kg ntawm cov kabmob kub, 1 kg ntawm tooj liab, 750 g ntawm tungsten thiab 200 g ntawm npib tsib xee. Qhov concentration ntawm tungsten nyob rau hauv ib lub smartphone yog kaum lub sij hawm siab dua li cov pob zeb, thiab cov concentration ntawm kub yuav yog ib puas npaug siab dua. Raws li cov kws tshawb fawb, lawv qhov kev sim ua pov thawj qhov xav tau kom rov ua dua tshiab ntawm cov khoom siv hluav taws xob kawg ntawm lub neej.
Tau qhov twg los: 3d xov.ru