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  1. 19320

    This article could have been a little less disingenuous. It would still have been a very good article if you had used “sulfuric acid” instead of “odorless hydrogen sulfate” and admitted that the process still required a little alkali to neutralize this waste stream that is “carried away by water trickling over the foam.” Jim […]

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  2. Tech

    A Breath of Fresh Air: Bacteria rid sewage of its stink

    Wastewater-treatment plants can use hydrogen sulfide-degrading bacteria instead of chemicals to reduce odors.

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  3. Harvesting Intelligence: IQ gains may reach rural Kenya’s kids

    Researchers say they've uncovered a dramatic IQ increase among Kenyan children over a recent 14-year period that may be due to environmental factors such as better nutrition and a greater parental emphasis on schooling.