Chlorination Degradation of Estriol under Various pH Values in Aqueous Solution

Abstract:

The natural estrogens have been proven to induce estrogenic effects in aquatic organisms exposed to them. In this article, estriol, as one of the active estrogens, was investigated by chlorine. The chlorination degradation of estriol is no longer relatively exponential relationship with the reaction time, but also decided by complex elements, including DOC, pH, flow rate, and several other indexes.E3 degradation efficiency increased as the increase of pH values.For pH 6-9, approximately 10min was needed to achieve similar to 90% E3degradation when pH>7, and it needed more than 30min if pH < 7.The chlorination kinetic of E3 is a second-order reaction, and the correlation coefficients for all the pH values are superior to 0.96.

• Periodical: Applied Mechanics and Materials (Volume 535)
• Pages: 713-717
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.535.713
• Online since: February 2014
• Authors: Tao Tao Zhao*, Cong Li, Ting Chao Yu
• Keywords: Chlorination Degradation, Estriol, Various pH Values, Water Distribution Systems

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