The microbial transformation of 17β‑estradiol in an anaerobic aqueous environment is mediated by changes in the biological properties of natural dissolved organic matter

2018 ◽  
Vol 631-632 ◽  
pp. 641-648 ◽  
Author(s):  
Lipeng Gu ◽  
Bin Huang ◽  
Chaochao Lai ◽  
Zhixiang Xu ◽  
Huan He ◽  
...  
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Microbial Transformation ◽  
Biological Properties ◽  
Aqueous Environment ◽  
17Β Estradiol

Impacts of Dissolved Organic Matter on the Removal of 17β-Estradiol Using Horseradish Peroxidase

2012 ◽  
Vol 224 (1) ◽  
Author(s):  
Wei Huang ◽  
Haiyan Song ◽  
Hongqin Xie ◽  
Youyi Yin ◽  
Erwen Yuan ◽  
...  
Keyword(s):  
Organic Matter ◽  
Horseradish Peroxidase ◽  
Dissolved Organic Matter ◽  
17Β Estradiol

Stability of nano-sized titanium dioxide in an aqueous environment: effects of pH, dissolved organic matter and divalent cations

2013 ◽  
Vol 68 (2) ◽  
pp. 276-282 ◽  
Author(s):  
X. N. Yang ◽  
F. Y. Cui
Keyword(s):  
Particle Size ◽  
Titanium Dioxide ◽  
Organic Matter ◽  
Zeta Potential ◽  
Dissolved Organic Matter ◽  
Ph Value ◽  
Divalent Cations ◽  
Aqueous Environment ◽  
Nano Tio2 ◽  
The Stability

Nano-sized titanium dioxide in the aquatic environment has a potential impact on the environment and human health. In this study, the impact of pH value, dissolved organic matter (DOM) and divalent cations (Ca2+) on the stability of titanium dioxide nanoparticles (nano-TiO2) in an aqueous environment was investigated in batch tests. The results showed that the particle size of nano-TiO2 was not sensitive to pH value but was inversely proportional to zeta potential. The nano-TiO2 becomes more stable with surface zeta potential, accompanied by small particle size and high dispersion. In the presence of DOM, the particle size was smaller and the stability of nano-TiO2 could be enhanced. This might be a synergistic effect of the ligand exchange and electrostatic force. Particle size increased with the addition of Ca2+ and the stability decreased.

Effects of dissolved organic matter and suspended solids on the magnetophoretic separation of microalgal cells from an aqueous environment

2015 ◽  
Vol 281 ◽  
pp. 523-530 ◽  
Author(s):  
Chuan Chun Chai ◽  
Zhi Hern Lee ◽  
Pey Yi Toh ◽  
Derek Chan Juinn Chieh ◽  
Abdul Latif Ahmad ◽  
...  
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Suspended Solids ◽  
Aqueous Environment ◽  
Magnetophoretic Separation
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