摘要
为了保持高效菌株的降解活力,运用单因素分析和正交试验,对一株优势降酚菌GPS-1的生长条件进行了较为系统的研究。单因素分析结果表明,GPS-1菌株的活性范围是:温度(20～40)℃,pH(5.0～9.0),外加碳源(葡萄糖)浓度(0～1000)mg/L,盐浓度(0～8)g/L;考虑动力消耗,溶解氧(摇床转速)应为180r/min。由正交试验可知:温度是影响GPS-1菌株生长的最主要因素,pH值和外加碳源浓度的影响接近,且明显小于温度的影响;得到的菌株最佳生长条件为:温度30℃,酸度值为pH7.0,外加碳源浓度1000mg/L。这一实验为工业处理含酚废水提供了较为可靠的运行参数。
In order to keep the degradative activity of the high-efficient bacteria, one dominant degrading phenolic bacteria （named GPS-1 ）＇s growth conditions are studied by single factor analysis and orthogonal test. The result of the single factor analysis shows that the active range of GPS-1 bacteria is under the condition of （20-40）℃, pH（5.0-9.0）, the extra carbon source （glucose） concentration is （0-1 000） mg/L and the salt concentration is （0-8） g/L; considering power consumption, DO （shaking speed） is intended to be 180 r/min. The best operation condition received through the orthogonal test is pH 7.0, the glucose concentration is wnder 1 000 mg/L at the temperature of 30℃. The experiment has offered a comparatively reliable parameter for the phenol wastewater treatment.
出处
《科学技术与工程》
2006年第20期3314-3317,共4页
Science Technology and Engineering
基金
辽宁省教委高等学校科研项目(990621504)资助
关键词
含酚废水
降酚菌
生长条件
正交实验
phenol wastewater degrading phenolic bacteria growth conditions orthogonal test
