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gold mine of electronic waste

Electronic waste: a hidden gold mine Press room

2020-8-4  Incessant demand for electronic equipment produces huge amounts of waste, and in 2016 alone, e-waste amounted to 44.7 megatonnes including 724 kilotonnes from Canada. Although e-waste contains substances that are hazardous to health and

Chart: Mining Gold From E-Waste Statista

2017-12-19  One of the most precious materials that can be sourced from e-waste is gold. The total volume is far lower than the other materials, standing at 500 metric tons. Share of electronic waste

Challenges and opportunities in the recovery of gold

2020-1-27  The levels of precious metals in electronic waste vary considerably, from 10–1600 ppm of Au, 200–20 000 ppm of Ag, and 5–970 ppm of Pd, but in most cases exceed those expected in conventionally mined ores; a rich gold-containing ore is typically 0.0018 wt% (18 ppm) of gold and a typical silver bearing ore contains 0.085% (85 ppm) of

This company recycles gold from electronic waste

2021-5-4  A record 53.6 million tonnes of electronic waste was generated worldwide in 2019, according to the UN’s Global E-waste Monitor 2020. The raw materials in this e-waste were worth around $57 billion with iron, copper, and gold contributing most to this value. But only a sixth of that value ($10 billion) is recovered in an environmentally

Challenges and opportunities in the recovery of gold from

electronic waste is dependent on the age of the device; the thickness of gold contacts halved from ca. 1.0 mm in devices manufactured in the 1980s to 0.6–0.3 mm for those made in the 2000's.11 Pre-separation treatment of e-waste The processing of e-waste typically begins with a manually intensive dismantling phase, during which circuit-board

New polymer easily captures gold extracted from e

2020-6-28  There's gold in them thar landfills — New polymer easily captures gold extracted from e-waste Dissolve e-waste, harvest gold, profit. Scott K. Johnson Jun 28, 2020 2:00 pm UTC

Turning electronic waste into gold -- ScienceDaily

2016-1-28  Turning electronic waste into gold Date: January 28, 2016 Source: University of Saskatchewan Summary: Anew financially viable and environmentally friendly way to

This new method for getting gold from e-waste may

2017-10-18  A small Canadian company’s new way of extracting gold and other precious metals is showing big promise for the mining industry, and for efforts to deal with the growing problem of electronic waste.

Why failing to recycle electronics leaves gold mines

2018-4-23  E-waste is more than phones and laptops There’s 80 times as much gold in one ton of cellphones as there is in a gold mine, says Federico Magalini, an expert on electronic waste.

[PDF] RECOVERY OF GOLD FROM ELECTRONIC

Gold recovery by iodine-iodide solution is an effective and environment-friendly method. The aim of this research is to investigate the possibility of iodine-iodide gold recovery from gold-plated metal, which is a waste product of the electronic industry. Leaching experiments were carried out in solutions, containing 25 g l-1 iodine and 100 g l-1 KI, under room temperature, rotating speed of

Electronic Waste: When Billions in Gold, Other

2020-7-3  Billions worth of valuable metals such as gold, silver, and copper were dumped or burned last year as electronic waste produced globally jumped to a record 53.6 million tons (Mt), or 7.3 kilogram

Infographic: Urban Mining The Electronic Waste

2013-2-28  Our friends at Gold & Silver Buyers highlight just how much gold and silver can be retrieved from scrapped electronics and how valuable urban mining can be when compared to traditional mining. How to Share the Urban Mining Infographic.

Bioleaching of Gold from Sulfidic Gold Ore Concentrate

2020-11-14  2.1. Preparation and Analysis Of Sulfide Ore Concentrate and e-Waste Sulfidic gold ore concentrate was sourced from a gold mine in Western Australia and had a particle size with a P80 (i.e., 80% of mass passing) of 120 m. The gold ore concentrate was sterilized by autoclaving before leaching experiments (121 C for 20 min). Shredded e-waste

Scientists develop new eco-friendly way to extract

2016-1-31  Toronto: Scientists have discovered a new financially viable and environmentally friendly way to recover and recycle gold from electronic waste, an approach that could revolutionise the industry and be a veritable gold mine. "We've found a simple, cheap and environmentally benign solution that extracts gold in seconds, and can be recycled and

Recycling of gold from electronics: Cost-effective use

2017-8-28  the background of the WEEE (Waste Electronic and Electrical Equipment) European Directive that aims to provide a ‘closed loop’ economy, i.e. to foster environmentally sound reuse/recycling and to preserve natural resources. It demonstrates that using gold in electronic equipment in a ‘design for recycling’ approach is cost-effective.

Urban mining study to help develop an e-waste

2013-6-13  Australia throws away a potential "gold mine" of precious metals each year when it sends electronic waste overseas. The nation's ability to recycle old

Enhancing gold recovery from electronic waste via

2013-7-19  The alternative use of bioleaching microbes for gold recovery is non-pollutive and relies on the secretion of a lixiviant or (bio)chemical such as cyanide for extraction of gold from electronic waste.

E-waste mining could be big business and good for

2018-7-5  "The mining of e-waste, and production of pure metal ingots from it of copper or gold, promises to be a very profitable business," said Macquarie's Prof John Mathews.

Use of Electronic Detonators at Cracow Gold Mine

Cracow is a high-grade; low-tonnage underground gold mine located approximately 500 km north-west of Brisbane in Central Queensland. It is a steeply dipping, narrow vein, epithermal gold and silver deposit that is accessed via a decline from surface. Cracow is owned by joint venture between Newcrest Mining (70 per cent) and Sedimentary Holdings (30 per cent).

Recycling, proper waste treatment can be veritable

2013-10-7  Some 3.5 billion people, half the world’s population, lack crucial waste management services, significantly harming environment, health and economies, the United Nations reported today, stressing that recycling and proper treatment can be a literal and metaphorical gold mine. “Open dumping, the most prevalent waste disposal method in many countries, can lead to acute health

Fungal Biorecovery of Gold From E-waste PubMed

Waste electric and electronic devices (e-waste) represent a source of valuable raw materials of great interest, and in the case of metals, e-waste might become a prized alternative source. Regarding gold, natural ores are difficult to mine due to their refractory nature and the richest ores have alm

Recycling of gold from electronics: Cost-effective use

With over 300 tonnes of gold used in electronics each year, end-of-life electronic equipment offers an important recycling potential for the secondary supply of gold. With gold concentrations reaching 300-350 g/t for mobile phone handsets and 200-250 g/t for computer circuit boards, this “urban mine” is significantly richer than what is available in primary ores.

Infographic: Urban Mining The Electronic Waste

2013-2-28  Our friends at Gold & Silver Buyers highlight just how much gold and silver can be retrieved from scrapped electronics and how valuable urban mining can be when compared to traditional mining. How to Share the Urban Mining Infographic.

E-waste mining could be big business and good for

2018-7-5  "The mining of e-waste, and production of pure metal ingots from it of copper or gold, promises to be a very profitable business," said Macquarie's Prof John Mathews.

Urban mining study to help develop an e-waste

2013-6-13  Australia throws away a potential "gold mine" of precious metals each year when it sends electronic waste overseas. The nation's ability to recycle old

Scientists in Canada discover new approach to turn

2016-1-31  TORONTO: Scientists have discovered a new financially viable and environmentally friendly way to recover and recycle gold from electronic waste, an approach that could revolutionise the industry and be a veritable gold mine. "We've found a simple, cheap and environmentally benign solution that extracts gold in seconds, and can be recycled and reused," said Stephen Foley, professor at the

Recycling of gold from electronics: Cost-effective use

2017-8-28  the background of the WEEE (Waste Electronic and Electrical Equipment) European Directive that aims to provide a ‘closed loop’ economy, i.e. to foster environmentally sound reuse/recycling and to preserve natural resources. It demonstrates that using gold in electronic equipment in a ‘design for recycling’ approach is cost-effective.

Sustainable Bioprospecting of Electronic Waste

2019-7-1  The growing quantity of electronic waste has continued to rise significantly, making it imperative to develop a sustainable electronic waste management solution .At the same time, there is an urgent need for metals such as gold (Au) and palladium (Pd) 2, 3, especially to produce the ICTs themselves.Hence, economical and ecofriendly recovery of metal resources from electronic waste

Barrick Gold Corporation Sustainability Environment

This includes batteries, fluorescent lights, waste oils, solvents, electronic waste and laboratory assay waste. In line with expectations set out in our Environmental Policy, we aim to minimize the amount of waste we produce, and we apply the ‘avoid, reduce, re-use, and recycle’ hierarchy to our non-mine waste.

How much gold is there left to mine in the world?

2020-9-23  Gold mine production totalled 3,531 tonnes in 2019, 1% lower than in 2018, according to the World Gold Council. This is the first annual decline in production since 2008.