John Todd Human Waste

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The summary of this passage is that scientists have found it hard to deal with human waste and traditional waste treatments tend to pollute our environment and waste valuable nutrients. Scientists and many others have been trying to find environmentally capable ways of dealing with human waste. So one biologist, John Todd has been on the case with this dilemma and invented a waste disposal system that mimics nature’s ways. The machine takes raw sewage and it makes the naturally occurring bacteria convert ammonia into nitrates which is a plant nutrient. In Rhode Island Todd installed a larger system that handles up to 16,000 gallons of sewage per day which had negligible environmental impact. Then an Engineer named Bill Wheaton began working
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