Recovery of Gold and Silver from Secondary Sources of Electronic Waste Processing by Thiourea Leaching

E-waste is the impact resulting from the massive use of electronic goods in the information technology era. The increasing use of electronic goods resulted in increasing electronic waste. This study aims to calculate the potential of generation and characteristics of e-waste, processing methods and potential economic value of electronic e-waste recycling in Sungguminasa City, Gowa Regency, South Sulawesi Province, Indonesia. The study was conducted in 14 sub-districts in Somba Opu district, the largest population district in Sungguminasa City with population of 157,448 people or about 1.67% of the population of South Sulawesi Province. The research method is conducted by analyzing the data obtained through: survey, observation and interview to the head of household in Somba Opu District, household divided in 3 groups by monthly income level (high, medium and low) and obtained: e-waste characteristics, waste generation potential, processing method and potential economic value of recycled e- waste. The analysis results of 37 types of electronic goods, 3 types of electronic goods with the largest percentage are: televisions, refrigerators, personal computers, namely: 26%, and 17%, 14% or respectively: 150, 98, and 80 units/year. The potential of e-waste generation in Somba Opu District: 801,8 ton/year. The traditional method of e-waste processing is “converted function” by 55% and then “repaired” by 19% and “stored” by 17%, while the least applied e-waste method is “discarded” with a percentage of 9%. The results of the economic potential analysis of e-waste recycling of the 3 largest electronic goods are: refrigerator US$ 32,439, computer US$ 45,994 and television US$ 76,254 (US$ 1,00 = IDR 14,000)

Download Full-text

Recovery of Copper and Precious Metals and Separation of Lead from Flue Dust of Electronic Waste Processing

Mineral Processing and Extractive Metallurgy Review ◽

10.1080/08827508.2019.1575827 ◽

2019 ◽

Vol 41 (3) ◽

pp. 153-161 ◽

Cited By ~ 4

Author(s):

Hyunju Lee ◽

Brajendra Mishra

Keyword(s):

Electronic Waste ◽

Precious Metals ◽

Waste Processing ◽

Flue Dust

Download Full-text

Recycling of the Electronic Waste Applying the Plasma Reactor Technology

Selected Scientific Papers - Journal of Civil Engineering ◽

10.1515/sspjce-2016-0022 ◽

2016 ◽

Vol 11 (2) ◽

pp. 93-102

Author(s):

Marián Lázár ◽

Natália Jasminská ◽

Mária Čarnogurská ◽

Romana Dobáková

Keyword(s):

High Temperature ◽

Plasma Reactor ◽

Electronic Waste ◽

Batch Processing ◽

Waste Processing ◽

Electronic Components ◽

Gasification Process ◽

Reactor Technology ◽

Computer Equipment ◽

The Impact

Abstract The following paper discusses a high-temperature gasification process and melting of electronic components and computer equipment using plasma reactor technology. It analyses the marginal conditions of batch processing, as well as the formation of solid products which result from the procedure of waste processing. Attention is also paid to the impact of the emerging products on the environment.

Download Full-text

Penanganan Limbah Elektronik (E-Waste) di Indonesia Berbasis Seni dan Drop Point

Jurnal Serambi Engineering ◽

10.32672/jse.v5i4.2335 ◽

2020 ◽

Vol 5 (4) ◽

Author(s):

R. Hilary A Yoga ◽

Ningrum Suryaningsih ◽

Andri Setia Prabowo ◽

Joni Welman Simatupang

Keyword(s):

Organic Waste ◽

Small And Medium Enterprises ◽

Electronic Waste ◽

Waste Processing ◽

Lead Pollution ◽

Art Integration ◽

Artistic Value ◽

Technological Developments ◽

The Government ◽

Medium Enterprises

Technological developments that increase the increase in electronic waste (e-waste) significantly. In Indonesia, the method of treating electronic waste by fire is not appropriate to apply, because electronic waste contains metals and will cause dangerous air pollution (for example: lead pollution). Electronic waste processing is different from organic waste that can be processed into fertilizer. Therefore, this condition can be categorized as an important problem, so it requires smart solutions that are fast and precise in processing. Handling this waste can be solved through several methods, namely e-waste banks and art integration. This method prioritizes artistic value, creativity, function, and in-depth knowledge of the waste, so that it can also take advantage of organizations or businesses that will bring profit and be environmentally friendly. This has also received support from the government through a program commonly known as Small and Medium Enterprises (UKM). The components that are usually buried, melted down, and destroyed will be sorted again based on their physicality so that it will facilitate the process of making art.

Download Full-text

Bacterial communities in PAH contaminated soils at an electronic-waste processing center in China

Ecotoxicology ◽

10.1007/s10646-009-0393-3 ◽

2009 ◽

Vol 19 (1) ◽

pp. 96-104 ◽

Cited By ~ 60

Author(s):

Wen Zhang ◽

Hui Wang ◽

Rui Zhang ◽

Xie-Zhi Yu ◽

Pei-Yuan Qian ◽

...

Keyword(s):

Contaminated Soils ◽

Bacterial Communities ◽

Electronic Waste ◽

Waste Processing

Download Full-text

The Social Cost of Informal Electronic Waste Processing in Southern China

Administrative Sciences ◽

10.3390/admsci10010007 ◽

2020 ◽

Vol 10 (1) ◽

pp. 7

Author(s):

Anthony Boardman ◽

Jeff Geng ◽

Bruno Lam

Keyword(s):

Social Cost ◽

Southern China ◽

Electronic Waste ◽

Cost Benefit ◽

Waste Processing ◽

Lower Income ◽

Statistical Life ◽

The Social ◽

Perform Sensitivity Analysis ◽

Lower Income Countries

Large amounts of e-waste are processed “informally” in lower income countries. Such processing releases dangerous pollutants, which increase mortality and reduce cognitive functioning. This paper estimates the social cost of informal e-waste processing in Southern China. This parameter may be “plugged-in” to cost-benefit analyses that evaluate the economic efficiency of policies to reduce informal e-waste processing in China or other lower income countries. It may also be used in the estimation of the social benefits (or costs) of new or proposed e-waste processing policies in higher income countries. We estimate that the social cost of informal e-waste processing in Guiyu is about $529 million. This amount is equivalent to about $423 per tonne (in 2018 US dollars) or $3528 per person, which is over half the gross income per capita of the residents of Guiyu. We also perform sensitivity analysis that varies the estimated mortality outcomes, the value of a statistical life and the amount of e-waste processed.

Download Full-text