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dc.contributor.authorLiu, Yen_US
dc.contributor.authorTuo, AXen_US
dc.contributor.authorJin, XJen_US
dc.contributor.authorLi, XZen_US
dc.contributor.authorLiu, Hen_US
dc.identifier.citationTalanta, 2018, v. 176, p. 485-491en_US
dc.description.abstractBiodegradable 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.en_US
dc.description.sponsorshipDepartment of Civil and Environmental Engineeringen_US
dc.subjectBiodegradable organic matteren_US
dc.subjectCoulometric methoden_US
dc.subjectPolluted wateren_US
dc.subjectWater quality indexen_US
dc.titleQuantifying biodegradable organic matter in polluted water on the basis of coulombic yielden_US
dc.typeJournal/Magazine Articleen_US
dc.description.validate201805 bcrc-
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