globalchange  > 气候减缓与适应
DOI: 10.1016/j.watres.2018.02.009
Scopus ID: 2-s2.0-85042225977
Development of biochemical sulfide potential (BSP) test for sulfidogenic biotechnology application
Author: Chen L.; Tsui T.-H.; Ekama G.A.; Mackey H.R.; Hao T.; Chen G.
Source Publication: Water Research
ISSN: 431354
Publishing Year: 2018
Volume: 135
pages begin: 231
pages end: 240
Language: 英语
Keyword: Biochemical sulfide potential ; Biodegradable particulate organic composition ; Sulfidogenic biochemical kinetic model ; Sulfidogenic biodegradability ; Sulfidogenic biotechnology
Scopus Keyword: Biodegradability ; Biodegradation ; Biotechnology ; Chemical oxygen demand ; Degradation ; Kinetic parameters ; Kinetic theory ; Sodium compounds ; Substrates ; Sulfur compounds ; Wastes ; Biochemical kinetics ; Biochemical methane potential ; Biochemical sulfide potential ; Biodegradation kinetics ; Biotechnology applications ; Dynamic process control ; Organic compositions ; Volatile suspended solids ; Lead compounds ; sulfide ; methane ; sulfate ; sulfide ; Article ; biochemical sulfide potential test ; biochemistry ; biodegradability ; biodegradation ; biotechnology ; controlled study ; degradation ; hydrolysis ; kinetics ; measurement error ; priority journal ; process control ; process model ; stoichiometry ; time ; anaerobic growth ; biochemical oxygen demand ; bioremediation ; biotechnology ; chemistry ; metabolism ; procedures ; sewage ; waste water ; Anaerobiosis ; Biodegradation, Environmental ; Biological Oxygen Demand Analysis ; Biotechnology ; Hydrolysis ; Kinetics ; Methane ; Sulfates ; Sulfides ; Waste Disposal, Fluid ; Waste Water
English Abstract: The determination of organics biodegradability and corresponding biodegradation kinetics provides valuable information on the optimal design and operation of anaerobic biotechnology especially for sulfidogenesis. This study proposes a deterministic method, i.e. a biochemical sulfide potential (BSP) test, and compares it to the conventional biochemical methane potential (BMP) test in terms of their ability to characterize sulfate-laden organic waste biodegradability. It demonstrated 1.48 times higher degradation of volatile suspended solids (VSS) and 2.60 times more chemical oxygen demand (COD) conversion in its major metabolites than the BMP test. Moreover, it required only four days to complete, compared to the 35 days required by the BMP test. Through the two-substrate first-order hydrolysis model, it was revealed that the shortened time was attributed to the enhanced degradation rates from both readily (eight times) and slowly (nearly 10 times) biodegradable organic substrates in the BSP test compared with the BMP test for the same sulfate-laden organic waste. The findings highlight the inappropriateness of the BMP test to sulfidogenic applications due to the underestimated predictions of organic waste biodegradability and excessive time requirements. Furthermore, the ability of the BSP test to identify the average elemental composition (CxHyOzNaPbSc) of substrate biodegradable particulate organics (BPO) is explored and verified using a casein-based validation test. Using BPO elemental composition as the input variable, a BSP biochemical kinetic model is thereby developed to predict BSR performance and possible dynamic process control. Overall, this study demonstrates the applicability and advantages of the BSP test in sulfidogenic applications for characterization of organics biodegradability and identification of BPO average elemental composition, furthermore develops a process model utilizing the derived BPO average elemental composition to provide optimized reactor retention time and substrates feed mixture for optimum performance. © 2018 Elsevier Ltd
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Document Type: 期刊论文
Appears in Collections:气候减缓与适应

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Affiliation: Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong; Water Research Group, Department of Civil Engineering, University of Cape Town, Cape Town, South Africa; Division of Sustainable Development, College of Science and Engineering, Hamad bin Khalifa University, Qatar Foundation, Doha, Qatar; Institute for Advanced Study, The Hong Kong University of Science and Technology, Kowloon, Hong Kong; Water Technology Center, The Hong Kong University of Science and Technology, Hong Kong; Hong Kong Branch of Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, The Hong Kong University of Science and Technology, Hong Kong; Wastewater Treatment Laboratory, FYT Graduate School, The Hong Kong University of Science and Technology, Nansha, Guangzhou, China

Recommended Citation:
Chen L.,Tsui T.-H.,Ekama G.A.,et al. Development of biochemical sulfide potential (BSP) test for sulfidogenic biotechnology application[J]. Water Research,2018-01-01,135
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