30 September 2009

So what exactly is composting all about?

I spend my afternoons knee-deep in rotting fruits and vegetables. I’m quite friendly with maggots, worms, and other creepy-crawlies that you’ve probably never even heard of. I chase off swarms of flies reminiscent of the Amityville Horror. It’s not that bad; I’d even go so far as to say that I have fun doing it.

…No, really.

I’m half of Washington College’s formidable composting duo. Every weekday afternoon, Donna and I head out to Buildings and Grounds to work on the compost pile. When we get there, there are two or three trash cans waiting for us in front of the compost pile. The bins are filled with food waste from the dining hall. We drag them over and dump them on top of the heap. Then, we use our shovels to break the food into smaller pieces so it will decompose faster. Doing this also helps mix the new waste into the compost. When we’re finished, we cover the pile with dead leaves and woodchips and rinse out the trash cans.

I’ve heard that a lot of students on campus aren’t even aware of the composting program. I’m going to give you updates on our progress about once a week so you can stay informed about the environmental efforts on campus. But first of all, what is compost, and why is it important?



Compost, once it is complete, is an excellent natural fertilizer. It’s brown, crumbly, and doesn’t seem all that different from fertile soil. Compost is easy to make at home. It’s largely food waste, with dry materials, such as leaves, added to improve the chemical ratio. It needs moisture and air to decompose properly. All kinds of creatures find compost piles to be lovely places to live. If you were to dig into our pile here, you would find maggots, worms, and all kinds of other bugs that help decompose the food and make the compost more fertile. The process eventually concludes with mature compost- the familiar soil-like substance you might use to fertilize your houseplants.

But why compost in the first place? Why deal with all the rotting food and bugs? Is it really worth it? The answer is yes. First of all, compost saves space in landfills. America is quickly running out of space for landfills, and with the amount of trash we produce, this is a pretty serious problem. While food is biodegradable, landfills are terrible places for decomposition. The conditions aren’t survivable for all the friendly critters that live in a backyard compost pile. Oxygen can’t get to the trash that sits in landfills. The minimal decomposition that does take place in landfills actually creates explosive methane gas- something that is far more undesirable than a few maggots.

A compost pile has access to oxygen and water, making it an ideal environment for the bugs that aid in decomposition. Mature compost is nutrient-rich and chemically balanced, making it an excellent fertilizer. Some scientists even believe that the heat produced by a compost pile could even one day be used to heat homes!

While it is clear that a compost pile is far superior to a landfill, don’t just throw all trash into a compost pile. There are very specific guidelines about what belongs in a compost pile and what doesn’t. Of course, anything that is non-biodegradable is out. No matter how hard you try, you won’t be able to turn a plastic bag into compost. Food waste and paper, however, make excellent additions to a compost pile. Avoid composting animal products, such as meat, eggs, and dairy, because they will attract rats and smell really bad. Also avoid things that have been treated with pesticides because they will harm the bugs in the compost pile, and eventually the plants that receive the compost as fertilizer.

Now that you know the basics of composting, you might be interested to learn more about the program here at Washington College. Check back for weekly progress updates!



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