摘要
针对钻井泥浆中的石油烃类污染物,利用实验室分离筛选出的高效石油烃降解菌株,深入研究H2O2对石油烃生物降解的影响。研究表明:H2O2的适宜一次加入浓度为200 mg/L;菌株生长处于停滞期和对数期时,每8hr和2hr向含油泥浆中加入H2O2为最佳;加入H2O2的钻井泥浆中,石油类污染物的的降解率从38.1%提高到83.1%。H2O2的深度氧化和供氧的双重作用对泥浆中石油烃类污染物的生物降解起到明显促进作用。
The high efficient strain was separated and filtrated from the soil contaminated by petroleum hydrocarbon. The authors, we focus on the effect of H2 O2 in the bioremediation of petroleum hydrocarbon pollutant. The results show that the optimal concentration of H2O2was 200 mg/L at one time. At the lag phase of the strain, H2O2 was added in per eight hour, and at logarithmic phase, H2O2 was added in per two hour. Biodegradation rate of petroleum hydrocarbon was increased from 38. 1% to 83. 1%. The bioremediation of petroleum hydrocarbon pollutant is remarkably by double effects of deep oxidation and oxygen supply of H2O2.
出处
《重庆大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2007年第10期130-133,共4页
Journal of Chongqing University
关键词
H2O2
石油烃
生物降解
H2O2
petroleum h · rocarbon
biodegradation