If we're going to compost dirty diapers in Vancouver, let's get it right

In an article in the New York Times last month, Oakland was recognized for its green-waste composting program. Citizens there can compost yard waste, food waste, and paper napkins.

But it turns out Toronto is even greener. They collect dirty diapers, animal waste, and kitty litter along with the food waste. They send it all to a facility to be turned into fertilizer for farmlands and parks. Dirty diapers, the article suggests, are "helping Canadian crops to grow".

Which way will Vancouver go with composting?

Metro Vancouver is in the final stages of negotiations with two companies to process organics. The Recycling Council of B.C. has formed an organics working group that will report back to its policy committee in June with recommendations on best practices for organics programs.

Will Toronto be our model? Will we provide composting for dirty diapers?

We will want to look at Toronto's system top to bottom before we make up our minds. The NYT article closes with a caution: "Some of the diapers may still end up in a landfill, however, due to an overuse of plastic bags in some areas served by the Green Bin program."

Because Toronto designed their program to allow folks to wrap up their compostable organics in plastic bags, the program produces thousands of tonnes of non-compostable plastic residuals each year that have to go to landfills or incinerators to be destroyed. According to a member of RCBC's working group who has visited the Toronto area facility, the non-compostable residuals could run as high as 21 percent of the material collected.

The plastic in diapers would meet a similar fate.

To me, it does not make sense to design a composting program to take non-compostable materials. I hope that our programs clearly prohibit plastics of all types.

And I hope that we go after the producers of disposable diapers and require them to take them back—the way we make beverage producers take back cans and bottles.

By cleaning up after Pampers and Huggies, Toronto's program will lock in the bad design in disposable diapers that makes them hard to compost.

We should instead require the producers to come up with a design that can be composted.

Helen Spiegelman is a Vancouver-based environmentalist and blog coordinator. Read more at Zero Waste.

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mystic_eye_cda
There are fully compostable diapers now made primarily from corn biproducts including moltex oko, nature babycare, gDiapers (which require a washable outer layer), possibly bambo and tushies I'm not sure. While I'm certain that corn is an inefficient and environmentally unsound source for "plastic" and biofuel. The other concern is that no matter what the source is of compostable diapers its almost certainly going to be a plant and therefore require clearing forest to make new farm land or using existing farmland and therefore driving up the cost of food. The exception might be paper based products as there may be a way to cut some trees, replant them, and still have a sustainable forest.

Its possible that the best answer really is that the outside of diapers be plastic and it be recycled back into plastic diapers.


Also as a Toronto resident I want to state that the plastics in the compost is because of the "sanitation workers". If I place so much as one diaper all folded up so it is essentially sealed in plastic on the top of my green bin they will not take my green bin. Other residents used to greatly limit the bags they use or not use them at all and again the union said it was causing "health problems" and so they won't pick it up. So most residents have resorted to lining the green bin in a garbage bag and then of course using a plastic bag to line any other indoor containers that they feel they need to. A lot are ok with not lining the kitchen collector and washing it out every frew days. Most people are not ok washing out bathroom garbage containers (remember all sanitary products also go in the green bin, as well as soiled paper, q-tips that have paper shafts, etc) or washing out large diaper bins 1-3 times a week.
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