Development of an in situ dissolved oxygen measurement system and calculation of its effective diffusion coefficient in a biofilm
Development of an in situ dissolved oxygen measurement system and calculation of its effective diffusion coefficient in a biofilm
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生物膜中原位溶解氧测量系统的开发及其有效扩散系数的计算
DOI：
10.1039/c2ay25132a
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发表时间：
2012-07
影响因子：
3.1
通讯作者：
Kun, Zhang
中科院分区：
文献类型：
--
作者：
Yun-Fang, Ning;You-Peng, Chen;Shan, Li;Jin-Song, Guo;Xu, Gao;Fang, Fang;Yu, Shen;Kun, Zhang
溶解氧（DO）在废水生物处理中起着重要作用。生物膜内部的溶解氧浓度决定了生化反应速率，而溶解氧浓度受生物膜有效扩散系数的控制。在当前的研究中，开发了一种用于原位测定生物膜中DO水平的测量系统。以序批式生物膜反应器中的一块生物膜为实验对象。测定了生物膜中的DO分布，计算出水膜和生物膜中的有效扩散系数分别为6.9 × 10−5 m2 d−1和1.7 × 10−5 m2 d−1。生物膜中未发现厌氧区。
Dissolved oxygen (DO) plays an important role in biological wastewater treatment. The DO concentration in a biofilm interior, which is controlled by its effective diffusion coefficient, determines the biochemical reaction rate. In the current study, a measurement system for the in situ determination of DO levels in a biofilm was developed. A piece of biofilm from a sequencing batch biofilm reactor was used as the experimental example. The DO distribution in the biofilm was measured and the effective diffusion coefficients in water film and in biofilm were calculated as 6.9 × 10−5 m2 d−1 and 1.7 × 10−5 m2 d−1. No anaerobic area in the biofilm was found.
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影响因子：
1.9
作者：
K. McLeod
通讯作者：
K. McLeod
影响因子：
11.4
作者：
W. Whalen;H. Bungay;W. M. Sanders
通讯作者：
W. Whalen;H. Bungay;W. M. Sanders
DOI：
10.2166/wst.2008.527
发表时间：
2008-11
期刊：
Water science and technology : a journal of the International Association on Water Pollution Research
影响因子：
--
作者：
C. Wantawin;J. Juateea;P. Noophan;J. Munakata-Marr
通讯作者：
C. Wantawin;J. Juateea;P. Noophan;J. Munakata-Marr
影响因子：
12.8
作者：
Tian C. Zhang;P. Bishop
通讯作者：
Tian C. Zhang;P. Bishop
影响因子：
3.8
作者：
Ita Ananta;M. A. Subroto;P. Doran
通讯作者：
Ita Ananta;M. A. Subroto;P. Doran