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Li, Jun
- Isolation and Characteristics of 17β-Estradiol-Degrading Dyella spp. Strains from Activated Sludge
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1 Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, CN
1 Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, CN
Source
Nature Environment and Pollution Technology, Vol 13, No 2 (2014), Pagination: 437-440Abstract
A 17β-estradiol (E2) degrading strain was isolated by using enrichment culture of activated sludge from wastewater treatment plants and identified as the genus Dyella. The estradiol degradation by this strain fitted in a first-order reaction. The degradation rate constant K was 0.025 h-1. Methanol and sodium acetate could be utilized by the bacteria. In contrast, ethanol and glucose were not completely utilized within 10 days. Estradiol was converted to estrone first and then used for further degradation. Estrone degradation by the bacteria also fitted in a first-order reaction (K=0.0133 h-1). The relationship between the specific degradation rate and substrate concentration fitted in the Monod equation.Keywords
Activated Sludge, Estrogen, 17β-Estradiol Degradation, Dyella sp.- Stratospheric Aerostat - A New High Altitude Scientific Platform
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Authors
Affiliations
1 School of Aeronautic Science and Engineering, Beihang University, 37 Xueyuan Road, Beijing 100191, CN
2 College of Geoscience and Surveying Engineering, China University of Mining and Technology, Ding No. II Xueyan Road, Beijing 100083, CN
1 School of Aeronautic Science and Engineering, Beihang University, 37 Xueyuan Road, Beijing 100191, CN
2 College of Geoscience and Surveying Engineering, China University of Mining and Technology, Ding No. II Xueyan Road, Beijing 100083, CN
Source
Current Science, Vol 111, No 8 (2016), Pagination: 1296-1297Abstract
A stratospheric aerostat is a lighter-than-air aircraft which can fly in the stratosphere with long endurance, high payload-to-weight ratio and low energy consumption. Generally, the stratospheric aerostat mainly includes the near space airship and high altitude balloon which are divided into two modes: station keeping and cruise with the wind (Figure 1).References
- Katikala, S., GoogleTM Project Loon (J), InSight: Rivier Acad. J., 2014, 10(2).
- DeVaul, R. W. et al., Altitude control via rotation of ballon to adjust balloon density, US, US8733697[P], 2014.
- Li, J. L. and Mingyun Lv, Appl. Thermal Eng., 2016, 104, 743–750; doi:10.1016/j.app/thermaleng.2016.05.122.
- Anon., Nature, 2016, 532, 285.
- Image Annotation Based on Bag of Visual Words and Optimized Semi-Supervised Learning Method
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Authors
Affiliations
1 School of Electron and Information Engineering, Ningbo University of Technology, CN
1 School of Electron and Information Engineering, Ningbo University of Technology, CN