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  • E Electronic Waste Management using Biological systems ,

    E Electronic Waste Management using Biological systems-overview Shuchi Patel and Avani Kasture C G Bhakta Institute of Biotechnology, Uka Tarsadia University, Maliba Campus, Bardoli Mahuva Road, Tarsadi, Dist Surat, Gujarat, India 394350 Corresponding author ABSTRACT Introduction The word waste refers to discarded...

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  • E Waste Bioleaching India

    E waste management - SlideShare Along with China, India is largest importer of E-waste from developed countries like US, UK and Japan In India 90 of mobile equipment are imported The rate of e-waste generation is increasing by 10 every year 3 08 million ton is contributed by India 40 Million ton E-waste produced globally 4...

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  • Ways to Recover Metals from Electronic Waste

    The process can be used for recovery of metals and plastics from electronic waste which contains high concentration of oxid Bioleaching It is an advanced process used for recovery of metals from electronic waste with help of Fungi and Bacteria...

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  • World s largest electronics waste dump in China

    The town of Guiyu in the economic powerhouse of Guangdong province in China has long been known as one of the world s largest electronic waste dump sit , e-waste was once imported into China ....

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  • A Study of Gold Recovery from E

    Bioleaching the biooxidised e-waste significantly improved gold recovery, especially by C violaceum, particularly at high pulp density For example, at pulp densities of 2 and 4 w/v, gold recovery from non-biooxidzed e-waste was 022 and 014 respectively...

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  • A Novel Designed Bioreactor for Recovering Precious Metals ,

    Aug 28, 2015 0183 32 Thus, how to recover precious metals from waste PCBs is significant for improving additional value of e-waste disposal Bioleaching is widely used ,...

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  • EXTRACTION OF PRECIOUS METALS FROM E

    E-waste processing e-waste after collection, is dismantled and individual components are teasted and isolated Here, hazardous materials are separated and are disposed safely without creating any harm to environment Then precious metals like gold, copper, silver, palladium etc, are extracted from e-waste and can be reused...

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  • PDF Recovery of precious metals from e

    FEASIBILITY STUDY FOR RECOVERING PRECIOUS METALS FROM E-WASTE , In South Africa and China for example, it is predicted that by 2020 e-waste from old computers will have jumped by 200 to 400 percent from 2007 levels, and by 500 in India Science News 2010 , Apart from the possibility of bioleaching HIT 200 CPSE Page 9 FEASIBILITY STUDY OF ....

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  • Global Decision Maker Management Consulting Ltd

    E-Waste 2019, GDMMC is going to held the 7th China International E-Waste 2019 which will be held in Wuhan, Hubei Province, China on September 10 to September 12th,2019, co-located event is China International ELV 2019 and the 2nd China International Battery Recycling 2019 Conference Highlight E-Waste...

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  • Metals bioleaching from electronic waste by ,

    These days, electronic waste needs to be taken into consideration due to its materials content, but due to the heterogeneity of the metals present, reprocessing of electronic waste is quite limited The bioleaching of metals from electronic waste was investigated by using cyanogenic bacterial strains Chromobacterium violaceum, Pseudomonas aeruginosa and Pseudomonas fluorescens...

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  • Bioleaching of gold, copper and nickel from waste cellular ,

    Jul 01, 2015 0183 32 In an effort to develop alternate techniques to recover metals from waste electrical and electronic equipment WEEE , this research evaluated the bioleaching efficiency of gold Au , copper Cu and nickel Ni by two strains of Aspergillus niger in the presence of gold-plated finger integrated circuits found in computer motherboards GFICMs and cellular phone printed circuit boards PCBs...

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  • E waste management

    Jul 05, 2013 0183 32 E-Waste?? E-Waste Waste of electronics / electrical goods that have reached their end of life Electronic products often contain hazardous and toxic materials and should not be dumped with other wast Along with China, India is largest importer of E-waste from developed countries like US, UK and Japan In India 90 of mobile equipment are ....

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  • China s booming middle class drives Asia s toxic e

    Jan 16, 2017 0183 32 China s booming middle class drives Asia s toxic e-waste mountains , China, once a big importer of e-waste, has cracked down but Hong Kong ,...

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  • Thiourea bioleaching for gold recycling from e

    Production of waste electrical and electronic equipment e-waste is one of the fastest growing environmental problems in the world This is due to the increasing consumption of electronic devices which often end up in landfill sites in developing countries to pollute the ,...

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  • The Burning Truth Behind an E

    Jan 13, 2016 0183 32 The Burning Truth Behind an E-Waste Dump in Africa Ending the toxic smoke rising from an iconic dump in Ghana will take more than curbing Western waste...

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  • Producing Copper Nature s Way Bioleaching

    Bioleaching is the extraction of a metal from sulfide ores or concentrates using materials found native to the environment namely, water, air and microorganisms In other words, bioleaching is the commercialization of the ability of certain bacteria and archaea, found in nature, to catalyze the oxidation of sulfide minerals...

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  • What Can We Do About the Growing E

    Aug 27, 2018 0183 32 All this makes formal recycling expensive As a result, many companies and countries illegally export their e-waste to developing countries where recycling is cheap The US, the second largest producer of e-waste after China, produced 10 million tons of e-waste ,...

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  • Contact Behavior between Cells and Particles in ,

    Bioleaching of precious metals from waste printed circuit boards such as using cyanogenic cultures for extraction of gold and silver has gained considerable attention It has the advantages of low cost and environmental friendliness However, low efficiency hindered its industrialization In this study, a novel strategy has been proposed to improve bioleaching efficiency...

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  • China The electronic wastebasket of the world

    May 30, 2013 0183 32 Did you ever wonder what happens to your old laptop or cellphone when you throw it away?...

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  • Comparative assessment of metallurgical recovery of metals ,

    Jan 14, 2017 0183 32 Comparative assessment of metallurgical recovery of metals from electronic waste with special emphasis on bioleaching , The present review provides a comprehensive assessment on the metallurgical techniques for recovery of metals from e-waste with special emphasis on bioleaching process and the associated factors , South China Environ Int ....

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  • Bioleaching of Electronic Waste M Valix

    Bioleaching of e-waste will be applied and developed for new applications, introducing more sustainable and practical ways to recover minerals and metals in the future 223, 224 225 225...

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  • Isolation of Acidithiobacillus ferrooxidans strain Z1 and ,

    Waste printed circuit boards PCBs are solid hazardous materials and may pose serious problems to the environment and human health Bioleaching has been used to recover metal from waste PCBs This study aims to isolate an effective Acidithiobacillus ferrooxidans strain and investigate its bioleaching mechanism during the process RESULTS...

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  • Electronic Waste Dump of the World Guiyu, China ,

    Jul 17, 2011 0183 32 e-Waste Capital of the World Guiyu, China is often referred to as the e-waste capital of the world The city employs over 150,000 electronic waste dis-assemblers, recyclers, and salvage workers who toil through 16-hour days tearing apart discarded computers and other electronic devic...

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  • Effects of bioleaching on the mechanical and chemical ,

    Jan 13, 2012 0183 32 Bioleaching processes cause dramatic changes in the mechanical and chemical properties of waste rocks, and play an important role in metal recovery and dump stability This study focused on the characteristics of waste rocks subjected to bioleaching...

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  • How to tackle the challenges posed by e

    Mar 18, 2017 0183 32 A worker distributes electronic waste at a government managed recycling centre at the township of Guiyu in China s southern Guangdong province June 10, 2015 Reuters Electronic waste, or e-waste ....

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  • Inner Workings How bacteria could help recycle electronic ,

    Although the handling and processing of e-waste are hard to track, government documents and scien-tific reports suggest that only 20 of it is being prop-erly recycled worldwide 1 Researchers estimate that roughly 4 likely ends up in landfills or is incinerated Toxic chemicals in the landfilled e-waste may then pollute the environment...

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  • Feasibility of Bioleaching of Selected ,

    Abstract The plausibility of bioleaching of selected metals, viz Cu, Zn, Pb and Ni, from e-waste in the form of waste printed circuit board PCB from a television set was evaluated using a pure culture of Acidiphilium acidophilum, a strain of acidophilic alphaproteobacteriaResults from the study indicated that A acidophilum was able to grow in the presence of e-waste and efficiently ....

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  • Electronic waste in China

    Electronic waste is a serious environmental issue in ChinaChina is the largest importer of e-waste and is home to most of the world s largest dumpsit Rapid economic growth, coupled with the world s increasing demand for electronics has dramatically increased the amount of e-waste being disposed of Roughly 70 this global e-waste ends up in China ....

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  • Bioleaching of copper from waste printed circuit boards by ,

    Feb 22, 2018 0183 32 The toxicity of waste printed circuit boards PCBs to bacteria was considered as the major limitation in bioleaching of copper from PCBs To reduce the toxicity of PCBs, copper extraction from PCBs was investigated using bacteria-free cultural supernatant from some metallurgical microbial consortium, whose predominant organisms were Leptospirillum ferriphilum and Sulfobacillus ....

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  • Review on Chromobacterium Violaceum for Gold Bioleaching ,

    Not only does the e-waste occupy large amount of land, but also the leachate can contaminate soil and groundwater and further pose a risk to human and environmental health In fact, e- waste is a very significant secondary resources, precious metals content in e-waste is dozens of times the content of the metals in high-grade ore...

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