Because food scraps are not allowed in any local curbside yard waste carts, some people put kitchen scraps down their garbage disposal, thinking this is a viable composting option. Although many local wastewater treatment plants do send at least some of their biosolids—a nice word for sewage sludge—to composting facilities, using garbage disposals for food scraps can pose environmental problems.
Water required to transport food through sewers makes this form of disposal environmentally cos...
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