邻苯二甲酸二(2-乙基己基)酯的生物降解和脱氮由一株假单胞菌属菌株完成。
Di(2-ethylhexyl) phthalate biodegradation and denitrification by a Pseudoxanthomonas sp. strain.
机构信息
Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Civil Engineering, Beijing University of Technology, Beijing 100124, China.
Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Civil Engineering, Beijing University of Technology, Beijing 100124, China; State Nuclear Electric Power Planning Design & Research Institute, Beijing 100085, China.
出版信息
Bioresour Technol. 2015 Mar;180:356-9. doi: 10.1016/j.biortech.2014.12.071. Epub 2014 Dec 30.
A bacterial strain (designated as N4) of Pseudoxanthomonas was isolated from a denitrification biofilter reactor. This study examined its degradation capability of di(2-ethylhexyl) phthalate (DEHP) and its denitrification ability. All results showed that, strain N4 could use DEHP as a carbon and energy source. Strain N4 demonstrated good DEHP degradation ability over a broad pH and temperature range. The optimal temperature and pH for DEHP degradation were 32°C and 6.0, respectively. The kinetics of DEHP degradation by strain N4 were exponential in nature. Strain N4 showed denitrification ability and could reduce nitrate and nitrite but not with DEHP as its carbon source.
从反硝化生物滤池反应器中分离到一株假单胞菌（命名为 N4）。本研究考察了其对邻苯二甲酸二（2-乙基己基）酯（DEHP）的降解能力及其反硝化能力。所有结果表明，菌株 N4 可以将 DEHP 作为碳源和能源使用。菌株 N4 在较宽的 pH 和温度范围内均表现出良好的 DEHP 降解能力。DEHP 降解的最佳温度和 pH 值分别为 32°C 和 6.0。菌株 N4 对 DEHP 的降解动力学呈指数增长。菌株 N4 表现出反硝化能力，可以还原硝酸盐和亚硝酸盐，但不能以 DEHP 作为碳源。
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