Volatile compounds released by microalgae-water phase from Taihu Lake in China |
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| Institution: | 1. State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China;2. Jiangsu Environmental Protection Key Laboratory of Aquatic Biomonitoring, Changzhou Environmental Monitoring Center, Changzhou, Jiangsu 213001, China;3. Changzhou Research Academy of Environmental Sciences, Changzhou, Jiangsu 213022, China;1. Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea;2. Green School (Graduate School of Energy and Environment), Korea University, Seoul 136-713, Republic of Korea;3. EcoPictures Co., Ltd., Seoul 137-865, Republic of Korea;4. Research & Business Foundation, Sungkyunkwan University, Suwon 440-746, Republic of Korea;1. Faculty of Life and Environmental Science, Shimane University, 1060 Nishikawatsu, Matsue, Shimane 690-8504, Japan;2. Faculty of Education, Shimane University, 1060 Nishikawatsu, Matsue, Shimane 690-8504, Japan;3. Estuary Research Center, Shimane University, 1060 Nishikawatsu, Matsue, Shimane 690-8504, Japan;4. Shimane Prefectural Institute of Public Health and Environmental Science, 582-1 Nishihamasada, Matsue, Shimane 690-0122, Japan;1. Department of Electromechanical Engineering, University of Macau, Taipa, Macau;2. Department of Building Science, Tsinghua University, Beijing 100084, China;3. Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455, USA |
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| Abstract: | The spectrum of Volatile Organic Compounds (VOCs) released by the microalgae-water phase of Taihu Lake in China was examined, then release behaviors were studied using non-methane hydrocarbons (NMHC, including a few polar organics) to describe the total amount of the released VOCs. Coupled dynamic headspace sampling with on-line monitoring of methane and NMHC was used to reflect the quasi-realtime release behavior of methane and NMHC by the microalgae-water phase. Alkanes, alkenes, oxygenated VOCs (OVOCs) and volatile sulfide chemicals (VOSCs) were detected. Their relative contents over time varied markedly from the stationary to the apoptosis phase, with their release rates as described by NMHC estimated from 0.02 to 0.59 μgC/(h g). Methane was investigated simultaneously, and its release rate was found to be 0.05–3.96 μgC/(h g). The release rates of both NMHC and methane were found to relate to the culture phase of the microalgae. |
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| Keywords: | VOCs spectrum Non-methane hydrocarbons (NMHC) Methane Dynamic headspace Release rate On-line monitoring |
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