Showing posts with label landfill. Show all posts
Showing posts with label landfill. Show all posts

Tuesday, 18 June 2013

E-Waste: What is it, and what do we do with it?

When humanity entered the Information Age, it was heralded as the end to paper waste.  Everything would be electronically created, storage, shared, and viewed.  Computers, the Internet, wireless, and the mass of new technology was going to remove the need for this kind of waste.  What wasn’t thought of was the new kind of waste that was going to be created as obsolete or broken down electronics and gadgets became replaced by the next version. 



E-waste has become a growing concern for most nations.  Landfills have become filled with our old computers, cell phones, printers, iPods, and other electronics that we take for granted.  However, our experience in dealing with waste in general is showing that we are prepared to deal with e-waste so long as we are committed to doing so.  Recycling programs, government initiatives, and social responsibility are leading the challenge in dealing with this by-product of evolving technology. 

What is E-Waste?

E-waste is what has become known as the discarded electronics and appliances that are commonly found in homes and businesses.  They are the computers, cell phones, printers, refrigerators, gaming consoles, and other consumer electronics that have become obsolete, broken, or surplus.  On average, the most common electronic devices are replaced frequently:

  • Cell phones – replaced every 22 months.
  • Desktop computers – replaced every 2 years.
  • Televisions – replaced every 10+ years.
  • Portable music players – replaced every 2-3 years.
  • DVD players – replaced every 4-5 years.
  • Printers – replaced every 5+ years.

Every year, there is between 20 to 50 million metric tons of e-waste, representing the faster growing portion of municipal waste. 

Historically, e-waste has contained many hazardous materials.  There was lead and mercury in old cathode ray tube televisions, cadmium in batteries, and the presence of hexavalent chromium, acrylamide, polybrominated biphenyls, and polybrominated diphenyl ether in many other electronics.  In throwing such waste into landfills, these hazardous materials and chemicals can leach into the soil and cause significant and irreparable damage to delicate ecosystems.



Statistics and Perspective

Our lives are centred around electronics.  The average home will purchase $1,179 worth of electronics every year.  To put this into perspective, approximately 5.1 million televisions were purchased in the United States for the sole purpose of being ready for the 2012 NFL Superbowl.  Over 99 million televisions are stockpiled for sale in the United States at any given time.  All of these will one day end up as e-waste. 

Initiatives to reduce the amount of e-waste the end up in landfills are underway.  One of the driving forces behind this is the amount of expensive metals that are used in the construction of electronics that can be reused and sold.  In 1 million cell phones, there is 24 kg of gold, 250 kg of silver, 9 kg of palladium, and 9,000 kg of copper.  These are able to reused in new electronics, reducing the amount required to mine them.  These metals are also commodities themselves, and are easily traded and sold as well.

What is Being Done

The reasons for reducing the amount of e-waste are many, from reducing the sizes of landfills, preventing hazardous materials from leaching into the environment, and creating businesses that harvest precious metals.  First, it is important to note that many of our electronics are now manufactured with less environmentally damaging materials.  The transition from CRT TVs to LED TVs removed the need for lead and mercury.  Cadmium is no longer used in batteries (still in rechargeable ones) and hexavalent chromium and acrylamide and no longer used in any electronic manufacturing.  Finally, flame retardant materials such as polybrominated biphenyls and polybrominated diphenyl have been phased out as safer materials have replaced them.  This has massively reduced the amount of hazardous materials that leach into the soil from e-waster that does make it to the landfills.


Canada has adopted the Federal Sustainable Development Strategy, a government initiative that amalgamates the efforts of more than 25 different agencies in combating environmental issues.  Through this, the Electronics Product Stewardship Canada, a not-for-profit organization, has been created.


It is currently operational in 7 different provinces with it pending approval in the 3 others.  The territories currently have no plans for inclusion under this initiative.  This has created a nationwide standard for e-waste recycling.  In addition, several major municipal governments in Canada have passed even stricter bylaws to further remove e-waste from their landfills.  This has led to direct cost savings for cities are landfill use is lowered.  It is estimated that British Columbia has saved almost $24 million through their recycling programs and Ontario has saved more than $65 million.  This has led to Canada becoming an international leader in e-waste management and recycling.  Even the 2010 Vancouver Winter Olympic medals were all made from recovered materials from e-waste! 

What Can You Do?

The reduction of e-waste begins with us.  We must evaluate whether we really need that next generation cell phone now or if our current and still working one is good.  Electronics that we are no long using can also be given to others to use, sent to recycling centres, or be donated to programs such as Computers for Schools or through partners of the federal Crown Assets Distribution.

We all want new technology and electronics.  However, we must be conscious in how we dispose of the ones we are no longer using.  In doing this simple act, we can lower the amount of e-waste that makes its way to landfills and can extend the lives of electronic devices through donation or recycle them so that their materials can be used in the new gadgets that we want!

Friday, 27 April 2012

Eco-Friendly Packaging


Polystyrene, commonly referred to as "Styrofoam", takes decades to hundreds of years to dissolve and is one of the world's most considerable environmental problems. Polystyrene is a thermoplastic material made from petroleum-derived styrene and is non-biodegradable. It is difficult to estimate how much polystyrene there is in the world, however, the Earth Resource Foundation reports that Styrofoam manufacturers were the fifth largest producer of toxic waste in 1986. Unfortunately Styrofoam is still widely used across the world, from cups and plates to packaging and more, as it is typically less expensive than other products and weighs significantly less which aids in reduced shipping costs. Thankfully there are several companies around the world working on finding eco-friendly, cost-effective substitutions to replace this harmful product.

Ecovative Design

Ecovative Design, a New York-based company, has created a biodegradable alternative to conventional polystyrene (or Styrofoam) using inedible by-products of agricultural crops like seed husks.  The material is grown using these by-products and mycelium which is a fungal network of threadlike cells, like the "roots" of mushrooms. In 5 – 7 days, in the dark with no watering and no petrochemical inputs, the mycelium digests the agricultural by-products binding them into a structural material. The mycelium acts like a natural, self-assembling glue. The material can then be grown into any shape needed. Every cubic inch of material contains a matrix of 8 miles of tiny mycelial fibers, and at the end of the process the materials are heat treated to stop the growth and ensure there will never be any spores or allergen concerns. From beginning to end, the mushroom material fits into nature’s recycling system. Composting, mulching, or throwing away are all environmentally sound options of disposal because the product is made of natural materials that belong in a healthy ecosystem.


Naturpack


Naturpack, an Ontario-based company, has created a loose fill packing product that is very similar to the polystyrene pellets (or "peanuts" or "beans") found in many shipments. Corn is the primary product used in creating their product, which boasts anti-vibration and shock absorbing qualities. Naturpak is reusable and recycled, is manufactured without chemicals, and is environmentally friendly when disposed. To make the loose fill, first the corn must be crushed and the germ removed by sifting.  The corn  is then ground to a powder so the pulverized corn can then be put directly into the plant.  The corn is heated in a pressure chamber and released in a way that produces and creates uniform pieces of loose fill.  The process is based on unmodified starch in a pure mechanical production process without additives.  The process can be altered by the addition of specific additives to achieve desired results. 


EnviroPAK

EnviroPak, a Missouri-based company, has utilized recycled products to create their eco-friendly packaging. Molded pulp is made from 100% recycled newspaper and is 100% recyclable and 100% biodegradable. It has been used to package delicate items such as eggs and light bulbs for years, however, recently has become more prominent in the shipping industry. Molded pulp can be shaped to fit any product and is highly shock resistant. The stock preparation process is closely related to that of a small paper mill. For full details on how the molded pulp is made please visit http://www.enviropak.com/Molded_Process.html