Nitrogen removal from opto-electronic wastewater using the simultaneous partial nitrification, anaerobic ammonium oxidation and denitrification (SNAD) process in sequencing batch reactor

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• 作者：Achlesh Daverey^a ; Sin-Han Su^a ; Yu-Tzu Huang^b ; Jih-Gaw Lin^a ; ^{jglin@mail.nctu.edu.tw}
• 关键词：Opto-electronic ; Industrial wastewater ; Anammox ; Nitrification ; Sequencing batch reactor
• 刊名：Bioresource Technology
• 出版年：2012
• 期刊代码：11_09608524
• 类别：ce
• 出版时间：June, 2012
• 卷：113
• 期：Complete
• 页码：225-231
• 文件大小：733 K

摘要

Simultaneous partial nitrification, anaerobic ammonium oxidation and denitrification (SNAD) system was applied to treat the opto-electronic industrial wastewater in a 2.5 L sequencing batch reactor. The characteristics of wastewater were low C/N ratio (鈭?.2) with 100 mg-COD/L and . The experiment was carried out over 8 months in six different stages, where nitrogen loading rate was gradually increased from 16 g-N/m³ d in stage I to 230 g-N/m³ d in stage VI. The COD and nitrogen removal rates by the SNAD system reached to 28 g COD/m³ d and , respectively in stage VI. These results showed that the SNAD system is suitable to treat wastewater containing high nitrogen pollutants with low COD level. Presence of ammonium oxidizing bacteria and anammox bacteria were confirmed by polymerase chain reaction (PCR). PCR results also indicated that Candidatus Kuenenia stuttgartiensis may be one of the dominant species in the reactor.