Quantifying biodegradable organic matter in polluted water on the basis of coulombic yield | |
Liu, Yuan1; Tuo, Ai-Xue1; Jin, Xiao-Jun1; Li, Xiang-Zhong2; Liu, Hong1 | |
刊名 | TALANTA |
2018 | |
卷号 | 176页码:485-491 |
关键词 | Biodegradable Organic Matter Coulometric Method Bomq Polluted Water Water Quality Index |
ISSN号 | 0039-9140 |
DOI | 10.1016/j.talanta.2017.08.029 |
英文摘要 | Biodegradable organic matter (BOM) in polluted water plays a key role in various biological purification technologies. The five-day biochemical oxygen demand (BOD5) index is often used to determine the amount of BOM. However, standard BOD5 assays, centering on dissolved oxygen detection, have long testing times and often show severe deviation (error >= 15%). In the present study, the coulombic yield (Q) of a bio-electrochemical degradation process was determined, and a new index for BOM quantification was proposed. The Q value represents the quantity of transferred electrons from BOM to oxygen, and the corresponding index was defined as BOMQ. By revealing Q-BOM stoichiometric relationship, we were able to perform a BOMQ assay in a microbial fuel cell involved technical platform. Experimental results verified that 5-500 mg L-1 of BOMQ toward artificial wastewater samples could be directly obtained without calibration in several to dozens of hours, leaving less than 5% error. Moreover, the BOMQ assay remained accurate and precise in a wide range of optimized operational conditions. A ratio of approximately 1.0 between the values of BOMQ and BOD5 toward artificial and real wastewater samples was observed. The rapidity, accuracy, and precision of the measurement results are supported by a solid theoretical foundation. Thus, BOMQ is a promising water quality index for quantifying BOM in polluted water. |
资助项目 | National Science Foundation[51525805] ; Natural Science Foundation of China[51578526] ; Chongqing Research Program of Basic Research and Frontier Technology[cstc2015jcyjBX0063] ; Western Action Research Program - Chinese Academy of Science[KZCX2-XB3-14] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2016341] ; National Project for Research and Development of Major Scientific Instruments[5172780119] |
WOS研究方向 | Chemistry |
语种 | 英语 |
出版者 | ELSEVIER SCIENCE BV |
WOS记录号 | WOS:000412610100061 |
内容类型 | 期刊论文 |
源URL | [http://172.16.51.4:88/handle/2HOD01W0/96] |
专题 | 水污染过程与治理研究中心 |
作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 2.Hong Kong Polytech Univ, Res Inst Sustainable Urban Dev, Kowloon, Hong Kong, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Yuan,Tuo, Ai-Xue,Jin, Xiao-Jun,et al. Quantifying biodegradable organic matter in polluted water on the basis of coulombic yield[J]. TALANTA,2018,176:485-491. |
APA | Liu, Yuan,Tuo, Ai-Xue,Jin, Xiao-Jun,Li, Xiang-Zhong,&Liu, Hong.(2018).Quantifying biodegradable organic matter in polluted water on the basis of coulombic yield.TALANTA,176,485-491. |
MLA | Liu, Yuan,et al."Quantifying biodegradable organic matter in polluted water on the basis of coulombic yield".TALANTA 176(2018):485-491. |
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