A new biosensor for rapid oxygen demand measurement

被引:12
|
作者
An, LC [1 ]
Niu, H [1 ]
Zeng, H [1 ]
机构
[1] Nanjing Univ Sci & Technol, Dept Environm Engn, Nanjing 210094, Peoples R China
关键词
biosensor; microbial sensor; oxygen demand; wastewater;
D O I
10.2175/106143098X123417
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A biosensor for the determination of oxygen demand (OD) using bacteria isolated from activated sludge has been developed. This sensor allowed OD measurement with a short response time, an operation stability of 48 days, and a serial coefficient of variation of +/-1.3% when a sample solution with 6.6 mg/L OD was employed. A linear range was obtained up to 32.8 mg/L OD using a glucose-glutamic acid standard solution. Comparable results were obtained for OD values estimated by the biosensor and biochemical oxygen demand (BOD) determined by the 5-day method. The biosensor was applied to on-the-spot estimation of OD for the effluent from wastewater treatment plants.
引用
收藏
页码:1070 / 1074
页数:5
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