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A Full-Scale Application of BCOP-HAP-MBR System to the Treatment of Chemical Synthesis-Based Pharmaceutical Wastewater


The chemical synthesis-based pharmaceutical wastewater is an extremely refractory and highly concentrated industrial effluent that requires treatment before discharge.A full-scale application with a biological contact oxidation process (BOCP)-hydrolytic acidification process (HAP) and a subsequential membrane bioreactor (MBR) was conducted to treat the chemical synthesis-based pharmaceutical wastewater in a pharmaceutical factory in Tianjin,China.The whole process comprised an attached biological growing section、a subsequent anoxic section,working as acidogenic phase,and a MBR system.The highly concentrated wastewater,which originated from the intermediate production of cephalosporin antibiotic,was recalcitrant and inhibitory to be biodegraded with the chemical oxygen demand (COD) varying between 2125 and 11561 mg/L (the mean COD value of 4164 rag/L).The practical system had a designed flow rate of 300 m3/d and stably removed 94.2% ± 2.6% of COD,leaving a mean COD around 178.5 mg/L with a range from 79.4 to 275.6 mg/L in the MBR effluent,which absolutely satisfied the local discharging standard for a pharmaceutical production enterprise.The BOCP and MBR contributed the most to the COD removal,which average removal rates are 52.1% ± 3.6% and 87.6% ± 0.6% respectively.The HAP section can't remove the organic pollutants obviously,but some big molecular organics can be biodegraded into small molecular ones which improving the biodegradable characteristic.The nitrogenous transformation was analyzed to investigate the nitrogen removal by the process,but it was found that the whole process didn't effectively remove NH4+-N and TN.In order to have a comprehensive recognition of the material components in the wastewater and understand the condition of organic pollutant removal in each sections,gas chromatography-mass spectrometry (GC-MS) was used for organic chemical analysis based on the EPA method 625 (base/neutrals and acids).......

【作者名称】: Wei ZHENG, Lu-iun CHEN, Chun-hai YAO, Ying LI, Wei LI
【作者单位】: Department of Environment Science and Engineering,Tsinghua University,Beijing 100084,P.R.China, Department of Environment Science and Engineering,Tsinghua University,Beijing 100084,P.R.China, Division of Ecology and Environment,Yangtze Delta Region Institute of Tsinghua University-Zhejiang,Jiaxing 314050,Zhejiang,P.R.China, Department of Environment Science and Engineering,Tsinghua University,Beijing 100084,P.R.China, Division of Ecology and Environment,Yangtze Delta Region Institute of Tsinghua University-Zhejiang,Jiaxing 314050,Zhejiang,P.R.China, Division of Ecology and Environment,Yangtze Delta Region Institute of Tsinghua University-Zhejiang,Jiaxing 314050,Zhejiang,P.R.China
【关 键 词】: Pharmaceutical wastewater, Biological contact oxidation process, Hydrolytic acidification process, MBR, Extraction/GC-MS, Full-scale application
【会议名称】: Proceedings of the 2nd China-Japan graduate student forum : Life, environment and energy
【期刊论文数据库】: [DBS_Articles_01]
【期刊论文编号】: 100,828,002
【摘要长度】: 1,953
【会议地点】: Beijing(CN)
【会议组织】: Department of Environment Science and Engineering,Tsinghua University,Beijing 100084,P.R.China;Department of Environment Science and Engineering,Tsinghua University,Beijing 100084,P.R.China;Division of Ecology and Environment,Yangtze Delta Region Institute of Tsinghua University-Zhejiang,Jiaxing 314050,Zhejiang,P.R.China;Department of Environment Science and Engineering,Tsinghua University,Beijing 100084,P.R.China;Division of Ecology and Environment,Yangtze Delta Region Institute of Tsinghua University-Zhejiang,Jiaxing 314050,Zhejiang,P.R.China;Division of Ecology and Environment,Yangtze Delta Region Institute of Tsinghua University-Zhejiang,Jiaxing 314050,Zhejiang,P.R.China;
【会议时间】: 2009
【上篇论文】: 外文会议 - FOUR BRAND NEW COLORS:Information Nullification in Psychology and the Humanities
【下篇论文】: 外文会议 - Knowledge Spread and Education Innovation

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