Indaba Yomkhiqizo | I-UrbanMines: Kusukela Ezimayini Zasemadolobheni Kuya Ezintweni Ezisetshenziswa Esikhathini Esizayo
Umqondo we-UrbanMines usekelwe ohlakeni "lwezimayini zasemadolobheni" olwethulwa ngo-1988 nguSolwazi Michio Nanjo we-Institute of Mineral Processing and Metallurgy e-Tohoku University, eJapane. USolwazi Nanjo uphakamise ukuthi ukuqongelela kwemikhiqizo yezimboni elahliwe ezindaweni zasemadolobheni kuyinqolobane ebalulekile yezinto ezingasetshenziswa kabusha, azibiza ngokuthi "ukumayini zasemadolobheni." Lo mqondo ubonisa indlela eqhubekayo yokuphathwa kwezinsiza, ugcizelela ukubuyiswa kwezinsiza zensimbi ezibalulekile emfucumfucwini kagesi kanye nokusekela ukusimama kwemvelo nomnotho kwesikhathi eside.
Isibonelo esiyinhloko ibhodi lesifunda eliphrintiwe (i-PCB) elitholakala kumadivayisi kagesi—ngokuvamile okubizwa ngokuthi “izimayini zasedolobheni”—eliqukethe izinhlobo ezahlukene zezinsimbi ezingavamile kanye nezinto zomhlaba ezingavamile. Liyisibonelo esimele umqondo “wezimayini zasedolobheni”.
Kusukela ekuqaleni kwekhulu lama-21, inqubomgomo yokuguqulwa nokuvulwa kweChina iholele ekukhuleni komnotho okusheshayo, ukwamukelwa kabanzi kwe-electronics yabathengi (imikhiqizo ye-3C), kanye nokuvela kwezimboni ezifana namabhodi wesekethe aphrintiwe (ama-PCB), ozimele be-IC lead, kanye nezixhumi ze-electronic ezinembile. Lokhu kukhula kuholele nasekukhuleni okukhulu kwezingcezu zemfucuza kagesi kanye ne-copper alloy. Ukuphendula lo mbono oguqukayo, i-UrbanMines yasungulwa eHong Kong ngo-2007, ekuqaleni igxile ekusetshenzisweni kabusha kwama-PCB kanye nezingcezu ze-copper alloy, ngaleyo ndlela ibeka isisekelo semisebenzi yayo yokusetshenziswa kabusha kwezinsiza.
Ngokuthuthuka okuqhubekayo kwezobuchwepheshe, ukuhlanganiswa kweketanga lokuhlinzeka, kanye nokwandiswa kwemakethe, i-UrbanMines ishintshe kusukela ebhizinisini lokuvuselela izinto zokwakha kabusha yaba yinkampani eqhutshwa ubuchwepheshe ehlanganisa ucwaningo lwezinto zokwakha ezithuthukisiwe kanye nentuthuko, ukukhiqiza, kanye nokuvuselela kabusha okuvaliwe. Igama kanye nophawu "i-UrbanMines" akubonisi nje kuphela imvelaphi yenkampani ekubuyiselweni kwezinsiza zasemadolobheni kodwa futhi kufanekisela ukuzibophezela kwayo okuqhubekayo ekuhlanganiseni ukusungula izinto ezintsha ezithuthukisiwe nokusetshenziswa kwezinsiza okusimeme.
Sisekela isimiso sokuthi "Ukusetshenziswa Akunamkhawulo, kodwa Izinsiza Ziyaphela; Ukusebenzisa Ukususa Ukuze Kubalwe Izinsiza, Ukusebenzisa Ukwahlukanisa Ukuze Kubalwe Ukusetshenziswa." Ngenxa yezinselele zomhlaba wonke ezifana nokuntuleka kwezinsiza kanye nokuguquka kwamandla, i-UrbanMines ithuthukise umbono osusu—“Ikusasa Lombono”—ohambisana nentuthuko yezobuchwepheshe nokusimama. Leli cebo ligxile ezintweni zensimbi ezingavamile ezihlanzekile kakhulu, izinto ezitholakala emhlabeni ezingavamile ezisebenza kahle kakhulu, kanye nezinhlelo zokuvuselela kabusha eziluhlaza, ezivaliwe. Sisebenzisa ubuchwepheshe obusha bokubumba amakhemikhali, sizinikele ekuletheni izixazululo zezinto zesizukulwane esilandelayo zezimboni zobuchwepheshe obuphezulu.
Uma sibheka phambili, i-UrbanMines ihlose ukuba ngumholi womhlaba wonke ezintweni ezisebenza kahle kakhulu kanye nokuvuselelwa kwezinsizakusebenza ezivalekile, iguqula ubuchwepheshe bayo ekuzinzeni ibe yinzuzo ehlala njalo yokuncintisana ezimakethe zomhlaba wonke.