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COMPOSTING TOILETS Environmental, social, and economic factors are the indicators to investigate if a waste treatment technology is sustainable. Environmental indicators include energy use, because it indirectly measures resource utilization, and performance of the technology in removing conventional waste constituents such as ammonia nitrogen, phosphorus, pathogens and BOD (wastewater). The economic indicators include capital, operation and management, and user costs because they determine the economic affordability of a particular technology to a community. Social indicators capture cultural acceptance of the technology through public participation and also measure whether there is improvement in the community from the specific technology through improved local environment. One of such technologies is a composting toilet. Instead of flushing human waste down a pipe, from where it could travel maybe several miles to a treatment plant, a composting toilet turns sewage simply and safely to compost in your own home. Although there are many different types of composting toilet, the principle is the same in all cases: the waste
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This note was uploaded on 06/07/2010 for the course CE CE773 taught by Professor Delosreyes during the Spring '10 term at N.C. State.

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