A bio-oxidation study of methanol synthetic wastewater using the SBR |
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| Institution: | 1. National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, China;2. Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, School of Ecology and Environment, Hainan University, Haikou 570228, China;3. Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;1. Department of Remote Sensing Applications and GIS, Space Technology Institute, Vietnam Academy of Science and Technology, Hanoi, Vietnam;2. Department of Conservation Biology, Institute of Environmental Sciences, Leiden University, The Netherlands;3. Surveying and GSIS Laboratory, School of Civil & Environmental Engineering, Yonsei University, Seoul, South Korea;4. Ho Chi Minh City Institute of Resources Geography, Vietnam Academy of Science and Technology, Ho Chi Minh City, Viet Nam;1. CIESOL (Solar Energy Research Center), Joint Centre University of Almeria-CIEMAT, Carretera de Sacramento s/n, E-04120, Almeria, Spain;2. Plataforma Solar de Almería-CIEMAT, Carretera de Senés Km 4, E-04200, Tabernas, Almeria, Spain;3. Department of Chemistry and Physics, University of Almeria, Carretera de Sacramento s/n, E-04120, Almeria, Spain;1. School of environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China;2. Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou university of Science and Technology, Suzhou 215009, PR China;3. Qingyuan County Sanitation Department, Lishui 323800, PR China;4. Suzhou Zanfeng Environment Technology Co., LTD, Suzhou 215000, PR China;1. State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China;2. Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China;3. Shanghai Municipal Engineering Design Institute (Group) Co., Ltd., Shanghai, China |
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| Abstract: | Bio-oxidation and biomass generation in a laboratory-scale sequencing batch reactor (SBR) were investigated. This paper presents the results obtained from an SBR treating a synthetic wastewater used to simulate a pharmaceutical wastewater. Nutrient removal and biokinetics of the SBR process, as well as dissolved oxygen and pH variations during bio-oxidation, were discussed. COD and BOD removal efficiencies were good. System stability was achieved within 2 weeks of each change of feed strength. The 48-h cycle adopted was found to be sufficient to force the biomass into endogenous respiration, hence controlling the excess biomass formed through assimilation of the feed's organic carbon. Although the ammonia-nitrogen level in the feed was high, nitrification was not observed. Track monitoring of DO and pH was found to provide good indications of the completion of bio-oxidation. |
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