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  • Team determines how estrogens persist in dairy farm wastewater

    Illinois Sustainable Technology Center senior research scientist Wei Zheng and his colleagues found that estrogenic compounds in dairy waste biodegrade very slowly in the absence of oxygen.

    Illinois Sustainable Technology Center senior research scientist Wei Zheng and his colleagues found that estrogenic compounds in dairy waste biodegrade very slowly in the absence of oxygen.

    Photo by L. Brian Stauffer

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      Illinois Sustainable Technology Center senior research scientist Wei Zheng and his colleagues found that estrogenic compounds in dairy waste biodegrade very slowly in the absence of oxygen.

      Photo by L. Brian Stauffer

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      Wastewater from large dairies is a major source of estrogenic compounds in the environment.

      Photo courtesy Wei Zheng

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      Estrogens in dairy wastewater degrade quickly when exposed to the air, but persist in wastewater, the researchers found.

      Photo courtesy Wei Zheng

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