Identification of novel denitrifying bacteria Stenotrophomonas sp. ZZ15 and Oceanimonas sp. YC13 and application for removal of nitrate from industrial wastewater

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• 作者：Lu Yu ; Yanjun Liu and Gejiao Wang
• 关键词：Biological nitrate removal ; Stenotrophomonas ; Oceanimonas ; Denitrifying bacteria ; Industrial wastewater ; Immobilization
• 刊名：Biodegradation
• 出版年：2009
• 出版时间：June, 2009
• 年：2009
• 卷：20
• 期：3
• 页码：391-400
• 全文大小：405.5 KB

文摘

Two novel denitrifying bacteria were successfully isolated from industrial wastewater and soil samples. Using morphological, biochemical/biophysical and 16S rRNA gene analyses, these two bacteria were identified as Stenotrophomonas sp. ZZ15 and Oceanimonas sp. YC13, respectively. Both of these two bacteria showed efficient NO₃ −-N removing abilities under a semi-anaerobic condition without obvious accumulation of NO₂ −-N, N₂O-N and NH₄ +-N. NO₃ −-N removal from paper mill wastewater was also successful by treatments with either a denitrifier or an immobilization method. Therefore, this study provides valuable denitrifying bacteria in biotreatment of industrial wastewater and other environmental pollution caused by NO₃ −/NO₂ −.