Partial degradation of 17 beta-estradiol by the chlorination applied to the treatment of water

作者：Pereira Renata de Oliveira^*; Carminato Vivian Maria; Vieira Eny Maria; Daniel Luiz Antonio

来源：Engenharia Sanitaria e Ambiental, 2013, 18(3): 215-222.

• chlorination
• disinfection
• estrogen
• endocrine disrupting
• hormone
• oxidation

The purpose of this study was to evaluate the degradation of the estrogen 17 beta-estradiol at doses of chlorine and contact times commonly used in water treatment plants. The application of chlorine led to minor changes in most parameters examined. The initial concentration of the hormone affected the removal by chlorine and was observed that increasing the dose of chlorine increased the removal of 17 beta-estradiol until the dose of 2 mg. L-1. The highest removal of hormone obtained was 99%, and inactivation of the indicator microorganisms, E. coli and total coliform was up to 5.6 log for values of CT greater than 14 mg. min. L-1.

• 出版日期2013-9