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Cathode-ray tube monitors huge problem<br />

Although cathode-ray tube (CRT) monitors are not a usual<br />

component of printers, the salvaging of the monitors is becoming a<br />

problem for those recycling e-waste material.<br />

Dave Beal, Vice President of EPC, Inc., says CRT monitors are one<br />

of the reasons e-waste legislation should be a priority, “because we’ve<br />

had all these companies that have abandoned CRTs, for the most part.<br />

It costs so much to get rid of those. We’re looking in Missouri for a<br />

secondary lead smelter we can send them to, but they’re shut down<br />

now and they shut down every once in a while, so you just have to hold<br />

them until they allow you to get everything in again. If you have a fairly<br />

big operation, you might have to hold two or three truckloads before<br />

they open up again.”<br />

Beal stated that a company stood up at conferences, saying they<br />

were going to build a furnace and take care of all the CRT glass. “They<br />

just needed enough to stockpile so that once they got their furnace<br />

running, they could take care of everything. Now, they’ve got millions<br />

of pounds of CRTs sitting in Arizona and Ohio.”<br />

A CRT monitor’s components are an electron gun and focusing<br />

equipment, a plastic casing and leaded glass. Because of x-rays emitted<br />

by the electron gun, lead is present to shield people. An analysis of the<br />

glass resulted in the following results by weight:<br />

The lead, a dangerous component, can be recovered through a<br />

pyrovacuum process, vaporising lead with high heat and low pressure:<br />

then it is recovered with carbon powder.<br />

The composition of materials has also changed. LEDs have<br />

replaced LCD screens that replaced CRTs in screens. There are<br />

fluorescent tubes in the background of LCD screens. CRTs contained<br />

lead, but now there is a need to be concerned with mercury in LCD<br />

screens.<br />

As for the glass in machines, Beal says he can take the glass to<br />

someone who will process it, but it is not profitable at all.<br />

“You can find people that will take the glass,” Beal said, “but for<br />

the most part, it’s not a sellable option.”<br />

LEDs don’t have hazardous materials and materials are easily<br />

recovered. Beal says there is not much value there. Some people take<br />

the front panels, which have rare earth metals in them and that they’ll<br />

recover. “That’s a long process, too,” Beal said. “You don’t get a lot out<br />

of it.”<br />

LINK: http://www.appropedia.org/Metal_reclamation_and_<br />

recycling_of_electronic_waste#cite_note-Chen-11<br />

• 49.61 percent silicon dioxide<br />

• 24.11 percent lead oxide<br />

• 7.79 percent potassium oxide<br />

• 5.32 percent sodium oxide<br />

• 3.63 percent aluminium oxide<br />

• 2.99 percent strontium oxide<br />

• 2.30 percent calcium oxide<br />

• 1.96 percent barium oxide<br />

• 1.49 percent magnesium oxide<br />

• 0.58 percent zirconium oxide<br />

• 0.07 percent iron oxide<br />

• 0.07 percent phosphorous oxide<br />

Alternative energy spreading in business<br />

Solar, wind and other alternative energy platforms have been possible for decades. Now the prospect of going off the grid is coming true,<br />

with countries like Sweden enjoying the prospect of freeing that country from fossil fuels completely. Cutting energy costs and using<br />

“green” energy is one of the major profit centres for a small business. In addition to buying energy-efficient appliances, printers and<br />

computers, it’s only one step farther for long-term investment in alternative energy.<br />

The year 2015 brought a surge of investment in renewable<br />

power and fuels in developing and industrial countries, according<br />

to Bloomberg New Energy Finance (BNEF). BNEF reported that<br />

wind power was the leading source of new power-generating power<br />

capacity in Europe and the USA in 2015. But non-European and<br />

non-USA countries such as China helped bring the capacity up by 63<br />

gigawatts (GW) to 433GW worldwide. Solar was up 25 percent in<br />

2015 over 2014, totalling 227GW, and 10 times that of a decade earlier.<br />

Photovoltaics and solar have marked a dramatic increase in<br />

innovation. In PV (photovoltaics), commercial development of solar<br />

paint materials to power a building by its parking lots have reached<br />

viability. Wind power that fits into the landscape is becoming more<br />

viable. In addition, some unusual alternative-energy forms have shown<br />

dramatic growth. The US Department of Energy reports that fuel cell<br />

growth from 2013 to 2014 grew from $1.3 billion to $2.2 billion (€1.18<br />

to €2.01 billion) in the year, shipping 50,000 fuel cells.<br />

Solar - from panels to paint<br />

Solar power - a type of energy technology rather than a fuel - has<br />

prices falling over a hundred times less than the 1970s level,<br />

according to BNEF. Prices at $50 (€45.57) per megawatt in the ’70s<br />

have fallen to near a dollar (€0.91) per megawatt installed today.<br />

Batteries to store solar power are also falling in price while<br />

©<strong>2017</strong> The Recycler www.therecycler.com Page 8

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