Join the Illini Gadget Garage at the Champaign Public Library (Foundation meeting room, 2nd floor) this Saturday, June 9th from 1:30-3:30 PM to learn how to bring new life into old electronics just with a bit of cleaning and TLC. A short presentation will demonstrate some of the simple ways that cleaning your devices can keep them functioning well and in use longer. After the presentation, there will be a workshop session where you can try out some of your newly learned cleaning processes on devices that you bring in. The Illini Gadget Garage staff will provide some useful household cleaning products to help scrub up those dingy devices.
From the May 1, 2018 edition of Science Daily: “Engineered nanomaterials hold great promise for medicine, electronics, water treatment, and other fields. But when the materials are designed without critical information about environmental impacts at the start of the process, their long-term effects could undermine those advances. A team of researchers hopes to change that.
In a study published in Nature Nanotechnology, Yale researchers outline a strategy to give materials designers the tools they need to make the necessary assessments efficiently and at the beginning of the design process. Engineers traditionally focus on the function and cost of their products. Without the information to consider long-term environmental impacts, though, it is difficult to predict adverse effects. That lack of information means that unintended consequences often go unnoticed until long after the product has been commercialized. This can lead to hastily replacing the material with another that proves to have equally bad, or even worse, effects. Having materials property information at the start of the design process could change that pattern. “As a researcher, if I have limited resources for research and development, I don’t want to spend it on something that’s not going to be viable due to its effects on human health,” said Julie Zimmerman, professor of chemical & environmental engineering and co-senior author of the study. “I want to know now, before I develop that product.” To that end, the researchers have developed a database that serves as a screening tool for environmentally sustainable material selection. It’s a chart that lists nanomaterials and assesses each for properties such as size, shape, and such performance characteristics as toxicity and antimicrobial activity. Mark Falinski, a PhD student and lead author of the study, said this information would allow researchers to weigh the different effects of the material before actually developing it.”
The database created by the research team also allows other researchers to enter information to improve the material selection framework. It includes engineered nanomaterials and conventional alternatives with human health and environmental metrics for all materials.
The research team includes scientists affiliated with Yale University, the University of Illinois at Chicago, City University of Hong Kong, and the University of Pittsburgh.
Read the referenced article in Nature Nanotechnology at https://www.nature.com/articles/s41565-018-0120-4. [Mark M. Falinski, Desiree L. Plata, Shauhrat S. Chopra, Thomas L. Theis, Leanne M. Gilbertson, Julie B. Zimmerman. A framework for sustainable nanomaterial selection and design based on performance, hazard, and economic considerations. Nature Nanotechnology, 2018; DOI: 10.1038/s41565-018-0120-4]
To learn more about the potential environmental and health impacts of nanotechnology, see the following:
Watch for Nanotechnology Environmental Health and Safety: Risks, Regulation, and Management, Third Edition, edited by Matthew Hull and Diana Bowman, due out in August 2018. See https://www.elsevier.com/books/nanotechnology-environmental-health-and-safety/hull/978-0-12-813588-4. This book “includes real-world case studies, wherever practical, to illustrate specific issues and scenarios encountered by stakeholders positioned on the frontlines of nanotechnology-enabled industries. Each case study will appeal and resonate with laboratory scientists, business leaders, regulators, service providers and postgraduate researchers.”
As Paben reports, researchers from Sandia National Laboratories have developed a method to use ultrasonic waves, coupled with surfactants, to cheaply and efficiently recover gold from scrap electronics. Their experiments involved application of two different surfactants to the surface of a cell phone SIM card, which was then submerged in water. Ultrasonic waves were applied, which imploded micro-bubbles on the SIM card’s surface. Upon collapse of these micro-bubbles, micro-jets ejected gold nanoparticles from the card’s surface, and the nanoparticles were captured and stabilized by the surfactants.
In a previous post, we discussed how researchers at the Illinois Sustainable Technology Center (ISTC), on the campus of the University of Illinois at Urbana-Champaign have developed an energy-efficient, non-toxic, nondestructive chemical process to recover polymers from the complex plastic blends found in items like cellphone cases.
But that’s not the only exciting news this Earth Month related to innovations in reclaiming materials from electronic scrap (commonly referred to as “e-waste”). In a GreenBiz article dated 4/18/18, Heather Clancy highlights an electrochemical process developed by Canadian venture EnviroLeach Technologies, which is similar to the conventional method of leaching gold and other metals out of ores, concentrates and tailings. The difference is that “instead of using cyanide, the patent-pending formula uses five non-toxic, FDA-approved ingredients that are combined with water at ambient temperatures.’The process does not require pressure, elevated temperatures, complex process circuits, intensive gas monitoring or costly detoxification systems,’ explained EnviroLeach on its website.” Read the full story on the GreenBiz web site. You can also check out the EnviroLeach web site for further information. This development is particularly encouraging considering a recent article from Environmental Leader reporting that n a study by researchers from Tsinghua University in Beijing and Macquarie University in Australia, which suggests extracting metals from e-waste costs 13 times less than mining ore. Perhaps the new process will make the economic benefit even more striking, while minimizing environmental impacts.
Elsewhere in Canada, researchers at the University of British Columbia “have perfected a process to efficiently separate fibreglass and resin – two of the most commonly discarded parts of a cellphone – bringing them closer to their goal of a zero-waste cellphone.” As UBC News reports, “Most e-waste recycling firms focus on recovering useful metals like gold, silver, copper and palladium, which can be used to manufacture other products. But nonmetal parts like fibreglass and resins, which make up the bulk of cellphones’ printed circuit boards, are generally discarded because they’re less valuable and more difficult to process. They’re either fed to incinerators or become landfill, where they can leach hazardous chemicals into groundwater, soil and air.” But UBC mining engineering professor Maria Holuszko, along with PhD student Amit Kumar, has developed a process using gravity separation “and other simple phycial techniques to process cellphone fibreglass and resins in an environmentally neutral fashion.” The next step in pursuing this innovation is developing a large-scale commercial model of the process with their industrial partner and recycling company Ronin8. Read the full UBC article on the UBC News web site.
Read more at https://ifixit.org/recycling on why electronics recycling, though of course important, should not be considered the answer to the problem of ever-growing amounts of e-waste, due to the difficulty in reclaiming materials (eased slowly by new innovations like the ones described above) and energy use. While these developments in electronic scrap recycling are heartening, it’s important to remember to keep your electronics in service as long as possible through repair and upgrades, and when you no longer want or need a functioning device, sell or donate it so someone else can use it. Recycling should only come at the ultimate end of a device’s useful life.
Mixed-plastic electronics waste could be a valuable source of reusable polymers, a new study led by Illinois Sustainability Technology Center (ISTC) scientists suggests. The team’s findings, published in the journal ACS Sustainable Chemistry & Engineering, are the first to demonstrate a nontoxic, nondestructive and energy-efficient chemical solvent process to recover polymers from the complex plastic blends found in items like like cellphone cases.
On November 15, 2017, Sustainable Brands reported that Amnesty International had released a new report revealing that tech industry giants such as Microsoft, Lenovo, Renault and Vodafone aren’t doing enough to keep child labor out of cobalt battery supply chains in Democratic Republic of Congo (DRC) and China. “The findings come almost two years after Amnesty exposed a link between batteries used in their products and child labor. Time to Recharge ranks industry leaders, including Apple, Samsung SDI, Dell, Microsoft, BMW, Renault, Vodafone and Tesla according to improvements to their cobalt-sourcing practices since January 2016. The 108-page report revealed that only a handful of companies made progress, with many failing to take even basic steps, such as investigating supply links in the DRC. The report’s publication is timely, arriving just months after the UK government announced plans to ban new petrol and diesel cars and vans from 2040, which would ultimately lead to higher demand for cobalt batteries. This last point is particularly problematic as recent reports have revealed that cobalt resources are on the decline, despite demand growth predicted at 500 percent.”
The next free electronics recycling collection event for participating communities in Champaign County, IL is scheduled for October 14, 2017. The collection will take place from 8 AM to noon at Parkland College (2400 W. Bradley Ave., Champaign). Use the Duncan Road entrance and follow the signs.
There is a 10 item limit for participating residents, and a 2 TV limit. All sizes, types, and models of televisions are accepted. This is of particular significance, because although there are multiple businesses that do accept various types of electronics for recycling year-round, there is currently no place in Champaign County to recycle older, bulkier cathode ray tube (CRT) tvs. (See the Champaign County Electronics Recycling Guide for information on businesses that accept electronics for recycling, including items accepted and contact information).
Participating communities include: Bondville, Broadlands, Champaign, Gifford, Homer, Ivesdale, Ludlow,
Mahomet, Ogden, Rantoul, Royal, Sadorus, Savoy, St. Joseph, Thomasboro, Urbana, and Unincorporated County. Due to the popularity of these collection events, residents must register at www.ecycle.simplybook.me. Online registration opens on Tuesday, September 5, 2017 at 8 AM.
On Tuesday, August 22, the Illini Gadget Garage will be hosting a screening of the documentary Death by Design at the Champaign Public Library. Doors will open at 6:30 PM and the film will begin at 7:00. The film duration is 73 minutes.
The Illini Gadget Garage is a repair center that helps consumers with “do-it-together” troubleshooting and repair of minor damage and performance issues of electronics and small appliances. The project promotes repair as a means to keep products in service and out of the waste stream. The Illini Gadget Garage is coordinated by the Illinois Sustainable Technology Center.
Death by Design explores the environmental and human costs of electronics, particularly considering their impacts in the design and manufacture stages, bearing in mind that many electronic devices are not built to be durable products that we use for many years. Cell phones, for example, are items that consumers change frequently, sometimes using for less than 2 years before replacing with a new model. When we analyze the effort put into, and potential negative impacts of, obtaining materials for devices through efforts like mining, the exposure to potentially harmful substances endured by laborers in manufacturing plants, and the environmental degradation and human health risks associated with informal electronics recycling practices in various parts of the word, the idea that we might see these pieces of technology as “disposable” in any way becomes particularly poignant. For more information on the film, including reviews, see http://deathbydesignfilm.com/about/ and http://bullfrogfilms.com/catalog/dbd.html. You can also check out the trailer at the end of this post.
Computers and smartphones are really complex machines, right? Well, if you know a little bit about them, they’re not all that intimidating. The Illini Gadget Garage (IGG) will break it down for you in their “What the Tech?” series of workshops, providing a basic walk through of different computer components and what they do.
This first presentation, via webinar, focuses on the basic components found in computers, smartphones, and other electronic devices and their functions in making a computer operate properly. Components to be covered include, but are not limited to: processors, hard drives, memory cards, and cooling elements. The Illini Gadget Garage’s Amanda Elzbieciak will guide you through the basics. The presentation will take place on Thursday, July 27 from 10-10:45 AM. (Note that the IGG campus workshop will be closed from 10-11 that day as a result.) Register online athttps://register.gotowebinar.com/register/331629583625614595.
This webinar presentation is free, but donations are appreciated to support future Illini Gadget Garage programming. The IGG is a repair center that helps consumers with “do-it-together” troubleshooting and repair of minor damage and performance issues of electronics and small appliances which promotes repair as a means to keep products in service and out of the waste stream. It is coordinated by ISTC as part of sustainable electronics and zero waste efforts, in collaboration with the iSchool and School of Art + Design. In order to pay hourly staff to help the public and train and oversee volunteers, as well as to pay for expenses like utilities, consumables, etc., IGG relies on the generosity of sponsors like you or your organization! See http://wp.istc.illinois.edu/ilgadgetgarage/donate/donation-form/.
A future presentation will offer hands-on opportunities to dismantle devices at our campus workshop. If you have suggestions for topics for future presentations, send them via email to email@example.com.
A team of chemists from McGill University in Montreal, Quebec, Canada, and Western University in London, Ontario, Canada, have developed a way to process metals without toxic solvents and reagents. Their innovation could help reduce negative environmental impacts of metal extraction from raw materials and electronic scrap.
As reported by McGill, “The system, which also consumes far less energy than conventional techniques, could greatly shrink the environmental impact of producing metals from raw materials or from post-consumer electronics…In an article published recently in Science Advances, the researchers outline an approach that uses organic molecules, instead of chlorine and hydrochloric acid, to help purify germanium, a metal used widely in electronic devices. Laboratory experiments by the researchers have shown that the same technique can be used with other metals, including zinc, copper, manganese and cobalt.”
The development is an interesting example of biomimicry. Germanium is a semiconductor not found in substantial quantities in any one type of ore, so a series of processes are used to reduce mined materials with small quantities of the metal to a mixture of germanium and zinc. Isolation of germanium from the zinc in this resulting mixture involves what one of the researchers called “nasty processes.” For an alternative less dependent upon toxic materials and energy use, the researchers found inspiration in melanin, the pigment molecule present in skin, hair, and irises of humans and other animals. Besides contribution to coloration, melanin can bind to metals. The researchers synthesized a molecule that mimics some of melanin’s metal-binding qualities. Using it they were able to isolate germanium from zinc at room temperature, without solvents.
As the McGill article states, “The next step in developing the technology will be to show that it can be deployed economically on industrial scales, for a range of metals.”
To learn more about germanium and its applications (including fiber-optics, infrared optics, solar electric applications, and LEDs), see the Wikipedia article on germanium at https://en.wikipedia.org/wiki/Germanium.