Tag Archives: biodegradable PET bottles

Hooked On Bottled Water

 
 
 
 
 
 

photo courtesy of photoxpress.com

Water On the Go

Americans are hooked on bottled water. In fact, in 2009 alone, Americans consumed 8.45 billion gallons of the beverage. We grab one and go…to the gym, to work, and to school. And why shouldn’t we? Bottled water is oh-so-convenient as well as healthy; our bodies need lots of it every day.

 The Good

In response to environmental concerns, some of the larger bottled water manufacturers have made strides to reduce the size of their plastic bottles, thereby using fewer resources to manufacture while also producing less waste. Furthermore, plastic water bottles are recyclable and can be easily tossed into your curbside bin or else brought back to the grocery store or recycling center. And if you live in one of the 11 states that has a bottle bill, you can even pocket a nickel for each plastic bottle you do return. In fact, bottle bill or not, Americans are recycling over 2 billion pounds of plastic water bottles every year. This must be good, right?

 The Not-So-Good

While any effort to recycle and reduce waste is good, the problem remains that while over 2 billion pounds of plastic bottles are being recycled in the U.S. each year, this number represents a relatively small recycling rate of about 25 percent. This is in contrast to paper recycling, which has a rate of around 50 percent. That means that at least 75 percent of post-consumer plastic bottles are being incinerated or thrown in the trash each year! To add to the not-so-good news, standard water bottles, which are made with PET (Polyethylene Terephthalate) materials are said to take about 500 years to biodegrade. Environmental watchdog groups say that we have so much plastic in our landfills that the breaking down process simply can’t keep up. As a result, some of this surplus washes away with the ground water and inevitably ends up in our oceans, threatening precious marine wildlife.

photo courtesy of photoxpress.com

 

Part of the Solution

There are things we can do to reduce the amount of plastic going into landfills each day, the first of which is to become a responsible consumer. Being mindful of how much plastic waste we create each day is a great first step, along with remembering to recycle consistently. We can set a good example for our children by teaching them how to responsibly dispose of their plastic containers and while making recycling fun. Allow them to collect plastic bottles around the house or out in the community and reward them for doing so.

The second step is to purchase water bottles that are made from biodegradable plastic. For example, ENSO Bottles has created the technology for a biodegradable PET plastic water bottle. ENSO’s “Bottles for a Healthier Earth” can be recycled along with other PET plastics, but are also biodegradable in landfill environments. ENSO’s promising technology, along with some mindful changes on the part of consumers, are both important parts of the solution to plastic bottle pollution, both now and in the future.

photo courtesy of photoxpress.com

RUBBISH! The Archaeology of Garbage, Book Review

rubbish1The book titled Rubbish! The Archaeology of Garbage by William Rathje and Cullen Murphy was a very interesting read.  Created in 1973, the archaeology of garbage was a program primarily created as an exercise in archeology for students at the University of Arizona Tucson.  The most fascinating aspect of the book is the discoveries of what our garbage tells about us as a society.  It was interesting the amount of detailed behavior that can be discovered by going through trash.  For example, in times of product scarcity our garbage shows that we waste more of the scarce product. Another major fact Dr. Rathje’s team discovered is that our landfills are not filling up from disposable diapers which is taking up about 1% of a landfills mass.

 

There have been some in the PLA (corn plastics) industry who use quotes from Dr. Rathje’s book to support an argument that composting biodegradable plastics is better for the environment than landfilling them.  Their argument takes some of the data out on context by looking at the hundred year old “poor” environmental designs of landfills.  The printing of “RUBBISH!” was in 1991 with most data provided in the book ending in 1988.  Most of the data in the book is over 20 years old.  As with many things from our past we eventually discover better and more environmentally sound solutions.  Yes, it is absolutely true that traditional dry-tomb landfilling is not the best solution for dealing with our garbage.  As a society we have made significant improvements to the methods we use for disposing of garbage.  Since the writing of the book we have implemented hundreds of recycling programs as well as the EPA requiring methane from the anaerobic biodegradation process happening in landfills to be captured and burned or used to create clean energy.  The EPA in the last 5 years has also changed laws with recirculating leachate through a landfill so to accelerate biodegradation by up to 10x.

 

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Fun Facts About PET

  • The PET bottle was patented in 1973 by chemist Nathaniel Wyeth (brother of distinguished American painter Andrew Wyeth).

 

  • The first PET bottle was recycled in 1977.

 

  • An estimated 9,400 curbside collection programs and 10,000 drop-off programs collect PET plastic in the United States, currently.

 

  • Approximate number of PET beverage bottles per pound:
    16 oz. — 18 bottles per pound
    20 oz. — 16 bottles per pound
    1 liter — 12 bottles per pound
    2 liter — 9 bottles per pound
    3 liter — 5 bottles per pound

 

  • Cubic yards conserved in a landfill by recycling PET beverage bottles:
    4,800 recycled 16-ounce bottles saves a cubic yard
    4,050 recycled 20-ounce bottles saves a cubic yard
    3,240 recycled 1-liter bottles saves a cubic yard
    2,430 recycled 2-liter bottles saves a cubic yard
    1,350 recycled 3-liter bottles saves a cubic yard

 

  • Since 1978, manufacturers have reduced the weight of a two-liter bottle by about 29%, from 68 grams to 48 grams.

 

  • Recycling a ton of PET containers saves 7.4 cubic yards of landfill space.

 

  • According to the EPA, recycling a pound of PET saves approximately 12,000 BTU’s.

 

  • The average household generated 42 pounds of PET plastic bottles in the year 2005.

 

  • Custom bottles (which are bottles used for products other than carbonated soft drinks) represent 62% of all PET bottles available for recycling.

 

  • Fourteen 20 oz. PET bottles yield enough fiber for an extra large T-shirt.

 

  • It takes 14 20 oz. PET bottles to make one square foot of carpet.

 

  • It takes 63 20 oz. PET bottles to make a sweater.

 

  • Fourteen 20 oz. PET bottles yield enough fiberfill for a ski jacket.

 

  • It takes 85 20 oz. PET bottles to make enough fiberfill for a sleeping bag.

 

Used from NAPOR website.

 

What is PET plastic?

NAPCOR Reassures on PET Safety with Answers to Common Concerns

Sonoma, CA, September 25, 2007 – PET (polyethylene terephthalate) bottles have garnered a great deal of media attention recently, some of it raising questions about PET safety. According to the National Association for PET Container Resources (NAPCOR), the trade group for PET packaging, it’s time to clear up any fallacies and set the record straight: Consumers can continue to rely on the safety of PET bottles.

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