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Researchers improving wastewater treatment by adding algae

from Daily Commercial News

A team of researchers at Drexel University in Philadelphia have developed a "bioreactor" system which is able to remove several chemicals from wastewater at once, shortcutting a process that, in conventional sewage treatment, takes multiple steps, expensive ingredients and quite a bit of time. After municipal wastewater reaches a treatment plant, it undergoes a series of processes, physical and chemical, that strains or otherwise neutralizes the substances that are hazardous to people or the environment, before it can be returned to the nearest stream or river. more

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