CHARACTERIZATION OF HAZARDOUS AND TOXIC MATERIAL IN E-WASTE CASE STUDY: COMPUTER WASTE
Rapid evolution of technology encourages consumers to keep buying more sophisticated computers, and affected to the increase of e-waste computer flow disposal around the world rapidly. Yet, until now e-waste handling still face many problems. The substances in the computer waste are very heterogeneo...
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Format: | Final Project |
Language: | Indonesia |
Online Access: | https://digilib.itb.ac.id/gdl/view/14478 |
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Institution: | Institut Teknologi Bandung |
Language: | Indonesia |
Summary: | Rapid evolution of technology encourages consumers to keep buying more sophisticated computers, and affected to the increase of e-waste computer flow disposal around the world rapidly. Yet, until now e-waste handling still face many problems. The substances in the computer waste are very heterogeneous, where most of them contain hazardous material. This research studied hazardous substances from four samples of computers waste. The selected sample are two desktops (produced in 1996 and 2006) and two laptops (produced in 1994 and 2006). They will be disassembled two times, the first disassembled is divided computer into motherboard, processor, RAM, hard disk drives, floppy disk drive (if any), CD/DVD drive, power supply. The second disassembled will divide them into smaller components, classified into 4 categories: metals, plastic, complex, and others. Then it will be separated between the components that can and can not be crushed.The next process is limited to computer components that can be crushed, in which the components will be analyzed using a total metal test and will detected by AAS. Tests carried out on 15 parameters of heavy metals which are: Ag, As, Ba, Cd, Cu, Co, Cr, Pb, Hg, Mo, Ni, Sn, Se, Zn, and Au. The results show all positive parameters contained in the four samples, and lead (Pb) concentration in all sample far above 1000 ppm. Copper (Cu), gold (Au) and silver (Ag) contained in large enough concentrations, and potential for being recovered. However, until now, e-waste recycling process still face many obstacles so that required study of an effective recycle. If they want to be disposed, the disposal must not be held in municipal landfill but must held in hazardous landfill. |
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