Thursday, February 26, 2009

Going Green - Urban Composting? Part 1

Fellow resident Sylvia Tan, just sent me this article from the New York Times on how urban food waste, can be put to good use, instead of just being incinerated.

With all the food outlets in Tiong Bahru, perhaps it could be put on trial?

Anyone with ideas on how to carry this forward with our NEA?

New Yorkers try Composting with Worms

By MIREYA NAVARRO
Published: February 18, 2009

ON a recent Saturday afternoon, Stephanie Stern and her husband poured 1,000 wriggling red worms from a brown bag into a plastic bin outside their bathroom, looked down and hoped for the best.

If things went well, the worms, already burrowing into their bed of shredded newspapers, would soon be eating three pounds of food scraps a week, reducing the couple’s trash and producing fertilizer for their plants.

If not, the bin would stink up their one-bedroom apartment in Cobble Hill, Brooklyn, and attract clouds of fruit flies.

“I’m a little nervous because I’ve heard the stories,” said Ms. Stern, 32, a museum educator.

Composting in New York City is not for the faint of heart. It requires commitment, space and sharing tight quarters with rotting matter and two-inch-long wiggler worms that look like pulsing vermicelli.

But an increasing number of New Yorkers have been taking up the challenge, turning their fruit skins and eggshells into nutritious crumbly soil in an effort they regard as the natural next step to recycling paper, bottles and cans. Food accounts for about 13 percent of the nation’s trash — it is the third largest component after paper and yard trimmings — and about 16 percent of New York’s.

“There’s a growing awareness of its value,” said Elizabeth Royte, the author of “Garbage Land: On the Secret Trail of Trash.” “We had a recycling revolution, now we need a composting revolution.”

Nationwide surveys by BioCycle, a monthly magazine that advocates the recycling of organic waste, have found that large-scale food composting projects among municipalities, colleges and farms nearly doubled between 2000 and 2007, to 267 from 138. Individual efforts are harder to measure, but appear to be on the rise, particularly in areas like New York City, where municipal programs are rare or nonexistent. Although some cities, like San Francisco and Seattle, offer residents regular curbside collection of food waste, large-scale composting presents challenges that may make it hard to catch on, waste-management experts say. The City of New York, which runs two compost facilities for backyard waste, has no similar program for food.

That leaves food-waste composting up to community programs and gardens that accept donations of food scraps, and to people like Ms. Stern and her husband, Chris De Pasquale, 34.

Ms. Stern had plenty of company, a few hours before the couple welcomed their 1,000 new roommates, at a workshop run by the Lower East Side Ecology Center at a library in the West Village, where a capacity crowd of about 70 people listened raptly to descriptions of how to set up and feed a “worm condo.”

The workshop covered the indoor composting method known as vermicomposting, in which worms are enlisted to speed up the decomposition of organic material, eating through scraps of it and excreting the “castings” that make up compost. (There are also commercial composters like the NatureMill, shown in the article below.) The “condo” where this should take place is a 16 1/2-inch-wide, one-foot-tall bin with air holes in which shredded newspaper sits atop green trash like the ends of carrots. Despite the enthusiasm of the audience, particularly the children, as containers of compost and worms were passed around, some of its members seemed to have misgivings. “Will the compost bin attract roaches?” one asked. (Not if you don’t let the covered bin get smelly, he was told.) “What happens when you go on vacation?” (The bin can stay unattended for up to three weeks.)

A few were trying again after unhappy first experiences.

“Everything got disgusting in there,” said Rachel Franz, 25, who tried composting in Ithaca, N.Y., in 2006, following instructions from friends. “The worms started dying, and it got really moldy,” she said. “When I opened it, the worms were trying to escape.”

If the worms want out, said Carey Pulverman, the workshop’s instructor and the project manager at the Lower East Side Ecology Center, “something is wrong.”

Happy worms eat about half their body weight in a day, and the compost is ready for harvesting in about four and half months, Ms. Pulverman said.

But if the paper is too wet, she continued, seepage or smell ensues. Certain food and organic matter is bad for indoor bins because it smells while decomposing (meat and dairy), attracts mold (bread) or may introduce insects to the bin (dry leaves).

None of this deterred Ms. Franz, the failed composter, who this time around planned to set up her bin under the kitchen sink of her father’s three-bedroom apartment in Chelsea, where she lives part of the time. Her father, she said, was resisting.

“He thinks it’s going to be a lot of work for him,” said Ms. Franz, who studied environmental science and is currently looking for work.

Part 2 to follow:

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