Bioleaching of platinum group metals from electronic waste
| dc.contributor.advisor | Menert, Anne | |
| dc.contributor.author | Khan, Jawad | |
| dc.date.accessioned | 2021-05-27T11:03:50Z | |
| dc.date.available | 2021-05-27T11:03:50Z | |
| dc.date.issued | 2020 | |
| dc.description.abstract | The rapid economic development together with the short life span of electronic products lead to the generation of ever more electronic waste (e-waste). In this context, the researchers from all over the world have paid much attention to the study of metals and metalloids present in the composition of e-waste. In the present thesis methods for disposing of e-waste are introduced, including physical, mechanical, and biological technologies. Considering advantages in energy savings and eco-friendliness, biological approaches appear be the most effective ones. This thesis evaluated the worldwide generation of e-waste and the implementation of multiple technologies in the recovery of e-waste, specifically, the different applications of the biological method which utilizes microorganisms to extract the platinum group metals. The mechanisms as well as influencing factors for the biological method are discussed, some examples of the method are also introduced. Finally, the conclusions on the implementation of the biological treatment method for e-waste and the prospects for its further use are presented. In estonian: Kiire majandusareng koos elektroonikaseadmete lühikese elueaga tekitab üha enam elektroonikaromusid (e-jäätmeid). Sellega seoses on kogu maailma teadlased pööranud palju tähelepanu e-jäätmete koostises olevate metallide ja metalloidide uurimisele. Käesolevas lõputöös tutvustatakse e-jäätmete kõrvaldamise meetodeid, sealhulgas füüsikalisi, mehaanilisi ja bioloogilisi tehnoloogiaid. Arvestades energiasäästu ja keskkonnasõbralikkuse eeliseid, näivad kõige tõhusamad olevat bioloogilised lähenemisviisid. Selles lõputöös hinnati e-jäätmete ülemaailmset teket ning mitmete tehnoloogiate rakendamist e-jäätmete taaskasutamisel, täpsemalt bioloogilise meetodi erinevaid rakendusi, milles plaatina rühma metallide eraldamiseks kasutatakse mikroorganisme. Käsitletakse bioloogilise meetodi mehhanisme ja mõjutegureid, toodud on ka mõned meetodi näited. Lõpuks tutvustatakse järeldusi e-jäätmete bioloogilise töötlusmeetodi rakendamise kohta ja selle edasise kasutamise väljavaateid. | en |
| dc.identifier.uri | http://hdl.handle.net/10062/72089 | |
| dc.language.iso | eng | et |
| dc.rights | openAccess | et |
| dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
| dc.subject | bioleaching | en |
| dc.subject | printed circuit board (PCB) | en |
| dc.subject | platinum group metals (PGM) | en |
| dc.subject | copper | en |
| dc.subject | silver | en |
| dc.subject | gold | en |
| dc.subject | platinum | en |
| dc.subject | e-waste | en |
| dc.subject | bioleostumine | et |
| dc.subject | trükkplaadid | et |
| dc.subject | plaatinarühma metallid | et |
| dc.subject | vask | et |
| dc.subject | hõbe | et |
| dc.subject | kuld | et |
| dc.subject | plaatina | et |
| dc.subject | e-jäätmed | et |
| dc.title | Bioleaching of platinum group metals from electronic waste | en |
| dc.title.alternative | Plaatinarühma metallide bioleostamine elektroonikajäätmetest | et |
| dc.type | info:eu-repo/semantics/bachelorThesis | et |