date:Jun 07, 2012
n in their samples. Further analysis revealed that the estradiols were being converted to estrone, undergoing the normal first step of biodegradation. But then the process reversed itself: Estrone was reverting to the alpha- and beta-estradiols.
We call this a reverse transformation, Mr Zheng said. It inhibits further degradation. Now we have a better idea of why (the estrogens) can persist in the environment.
The degradation rates of the three hormones in the wastewater solution were temperat