At first glance, plastics recycling looks like an economic and environmental success story.
Consider, for example, that about 25 percent of the polyethylene fiber in Tyvek -- a DuPont product used in envelopes, disposable medical suits and insulation -- comes from jugs that once held milk or water. Fleece garments are increasingly made of old soda bottles. "Plastic lumber" made in part from milk jugs increasingly substitutes for wood in decking and outdoor furniture, and the Plastic Lumber Trade Association is testing the product for rot-resistant bridges.
EvCo Research, an Atlanta company, is using recycled beverage bottles to make water-repellent coatings on boxes for shipping fruits and meats. The TEWA Technology Corp of Albuquerque, New Mexico, is using shredded plastic in asphalt.
PHOTO: NY TIMES
Yet few companies have achieved the economies of scale that could make recycling pay.
Manufacturers say they cannot get a stream of high-quality material at a reasonable price. Recycling companies say they cannot guarantee such a stream until sales grow robust enough to drive down costs.
"It's a chicken-and-egg situation," said Gil Friend, president of Natural Logic, an environmental consulting firm in Berkeley, Califoirnia. Two years ago, environmentalists, manufacturers and recyclers founded Business and Environmentalists in an Alliance for Recycling -- known as BEAR -- to jump-start plastics recycling. So far, it has only compiled data.
"We had a high objective, finding a way to recycle 80 percent of plastics," said the manager of the alliance, Edward Boisson, an environmental consultant in Pittsboro, Norht Carolina. "We didn't get there."
The results of the impasse are easy to spot. According to the Environmental Protection Agency, nearly 95 percent of the 24.2 million tons of plastic waste generated each year goes unreclaimed. Plastics already take up a disproportionate amount of landfill space, and the glut is likely to worsen: Studies show that as many as 500 million computers will be discarded over the next five years.
"Billions of pounds of plastics will not be dealt with in an environmentally benign way," said Ted Smith, executive director of the Silicon Valley Toxics Coalition, an environmental group in San Jose, California.
Manufacturers acknowledge the problem. Beverage companies, although opposed to the spread of bills mandating return deposits on bottles beyond the 10 states that have such laws, are setting up their own retrieval programs. On Jan. 8, carpet manufacturers, environmental advocates and regulators signed the National Carpet Recycling Agreement, to promote carpet recycling.
Electronics companies have started "take back" programs to collect discarded computers, printers and such. Similar programs are mandatory in much of Europe. Many companies are designing products to be easily disassembled, and stamping components with codes signifying their chemical composition.
Failed initiatives
But so far, few manufacturers are funneling all of their used plastics back into their products. PepsiCo experimented with a recycled bottle in the early 1990s, but "the economics were just not there," a spokesman recalled. Honeywell International tried making new fibers from old carpets; it "didn't pan out," a spokesman said, and Honeywell sold the business last year.
DuPont has reclaimed 33,000 tonnes of carpet over the last 10 years -- enough to win it awards, but a tiny fraction of the 1.8 million tonnes of carpet that Mark Ryan, manager of environmental initiatives for Dupont Commercial Flooring, said wound up in landfills each year.
"Carpet recycling hasn't grown as fast as people expected, because the economics are fragile," he said.
Economics are not the only problem. The customers of Collins & Aikman Floor Coverings, a carpet manufacturer in Dalton, Georgia, provide an inexpensive stream of used recyclable carpets. Still, some 40 percent of the fibers in Collins carpets are virgin plastic -- and will be, until Collins is certain that its suppliers have perfected their recycling processes. Collins is a unit of Quad-C.
"We can't take a chance of defects affecting quality," Lee Schilling, a senior vice president, said.
That concern is even more prevalent in the electronics industry. Each month, Hewlett-Packard ships 90 tonnes of plastics from discarded computers and printers to recyclers. But it is turned into carpet backing and fuel pellets. Hewlett says the old plastics are a melange unsuitable for new products.
"It would only make sense if we could make all of our products out of one uniform batch of recycled plastics," said Renee St. Denis, who, as Hewlett's end-of-life process manager, grapples with such issues.
Disagreements
To make matters worse, even recycling's most ardent supporters often squabble among themselves. Beverage companies detest bottle bills; other users of recycled plastics want them passed. Environmental advocates want beverage companies to recycle old bottles into new ones, while carpet companies want the old bottles for themselves.
Industry truces would not solve recycling's volatile economics. Virgin plastics are made from oil, recycled plastics from trash, so logic would suggest that recycled materials would be cheaper. But it is costly to collect, transport, sort and clean discarded plastics. And every time oil prices fall -- and they fell by more than one-third last year -- recycled plastic loses value.
"Recycled plastics are a commodity, and commodity prices are low," said Richard McCombs, chief operating officer of MBA Polymers, a company in Richmond, California, with a patented technology for separating plastics from electronics devices.
Moreover, items made of recycled plastics, while more durable, are expensive. EvCo's plastic coating runs about US$2.50 a pound, compared with about US$0.50 a pound for wax. The upfront cost of plastic decking can be twice that of wood. TEWA's asphalt is more expensive than asphalt made of rock and sand.
The manufacturers of these products say that less of their product is required by weight, and that their products perform better. But customers are not easy to convince.
"We're bottlenecked by end users who are resistant to change," said Len Cox, who handles TEWA's marketing.
Alan Robbins, president of the plastic lumber association, echoed that complaint. "The folks who make wood are good at parrying our claims,'' he said.
Recyclers who do win customers over may still be stymied by the problem of getting waste plastic.
Most bottles are made of "pure" plastics -- polyethylene terephthalate, or PET, for soda bottles, and high-density polyethylene for milk bottles -- that are easily turned into carpets, plastic lumber or new bottles. Some 75 percent of the bottles the Coca-Cola Co uses in North America have 10 percent recycled content, and the company said it planned for all of its bottles to have recycled content by 2005. And last week Pepsi, despite its past disappointments with recycling, said it, too, aimed to have 10 percent recycled content in all bottles by 2005.
Collecting at big events
But beverage companies have easy access to their old bottles. Coca-Cola collected discarded bottles at a NASCAR event in Atlanta in November and at the Winter Olympic Games in Salt Lake City. Coke sent the NASCAR plastic to a recycler; it will use the Olympics plastic itself.
But experts say that only bottle bills can give small companies access to the 4 billion PET bottles that end up on roadsides or in landfills each year.
"The bottles are there, but getting them is a problem," said John Kokoszka, EvCo's vice president for operations.
The problems are even greater for those who want to reuse plastics from durable goods like computers. They contain blends of plastics, metals, glues and additives that are hard to separate. And, discarded bottles are usually a few months old. Discarded durables vary in age by decades, and can include plastics that are no longer used.
A few companies anticipated that problem. In the 1990s, IBM began using the same plastic in several products, making the machines easier to recycle. Three years ago IBM introduced the IntelliStation E Pro, a desktop computer with plastic parts comprised almost entirely of recycled resins.
"We wanted to demonstrate that using recycled plastics was viable," said Wayne Balta, IBM's vice president for corporate environmental affairs.
Balta said that IBM's goal was to eventually use recycled resins in most products.
Those goals may yet be attainable. Recycling companies are already experimenting with optical recognition technology and electric charges to separate plastics, and with solvents that remove glues and labels.
"Technology is no longer the major barrier to recycling," said Michael Fisher, director of technology for the American Plastics Council. "People have to figure a way around the collection problems."
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