相关实验视频

Updated: Jul 24, 2025

Use of a Battery of Chemical and Ecotoxicological Methods for the Assessment of the Efficacy of Wastewater Treatment Processes to Remove Estrogenic Potency

Use of a Battery of Chemical and Ecotoxicological Methods for the Assessment of the Efficacy of Wastewater Treatment Processes to Remove Estrogenic Potency

Published on: September 11, 2016

自由和化雌激素在河水-沉积物微观宇宙中的微生物降解

David R Griffith¹, MacKayla Carolan¹, Manuel Marcos Gutierrez¹

¹Willamette University, 900 State Street, Salem, Oregon 97301, United States.

Environmental science & technology

|July 10, 2023

概括

生物降解在几个小时到几天内从河流中去除自由雌激素. 然而,由于生物降解速度较慢和光可变性增加,化雌激素的持续时间较长,影响水质.

科学领域:

环境化学环境化学
环境微生物学环境微生物学
生态毒理学生态毒理学

背景情况:

以为基础的废水消毒产生化雌激素.
这些化合物被检测到废水废水中,引发了对自然水污染的担忧.
有限的数据存在于水生环境中化雌激素的生物降解.

研究的目的:

在一条大河中研究自由和化雌激素的生物降解动力学.
评估环境条件 (度,沉积物存在) 对雌激素生物降解的影响.
为了比较不同雌激素形式的生物降解率.

主要方法:

使用威拉梅特河水和沉积物的有氧微观宇宙.
在50和1250 ng L^-1时测量的雌激素度.
无生物控制,16S rRNA基因测序和ATP测量用于微生物分析.

主要成果:

雌激素的生物降解发生在几个小时到几天内.
17β-雌激醇的半衰期 (42±3小时) 比50 ng L^{-1的单 (49±5小时),双 (88±12小时) 和二 (98±16小时) 形式更短 (42±3小时).}
较高的初始度和沉积物的存在加速了生物降解. 自由和化雌激素是重要的转化产物.

结论:

生物降解是表面水中的自由雌激素的主要去除机制.
化雌激素的生物降解速度较慢,更容易发生光解.
需要进一步的研究来了解化雌激素在水生生态系统中的命运和影响.

关键词:

生物降解生物降解雌激素雌激素雌激素是一种化雌激素是化雌激素的一种.运动学的动力学.氧化过程中的氧化.河流河流水河流水吸收吸收吸收吸收转化产品的转化产品是什么

更多相关视频

Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation

Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation

Published on: October 31, 2019

A Simple Method for Automated Solid Phase Extraction of Water Samples for Immunological Analysis of Small Pollutants

A Simple Method for Automated Solid Phase Extraction of Water Samples for Immunological Analysis of Small Pollutants

Published on: January 1, 2016

相关概念视频

Environmental Applications of Microorganisms

Environmental Applications of Microorganisms

Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...