摘要
在氧化亚铁硫杆菌(T.f)的生物氧化作用下,煤中的硫铁矿被氧化成硫酸和铁离子,是形成酸性矿井水的主要原因。本研究以亚铁离子的被氧化程度和速率为指标,以温度、pH和抑制剂硫酸月桂酯钠(SLS)浓度作三因素三水平正交试验,探讨抑制T.f氧化作用的因素,达到从源头控制酸性矿井水产生的目的。结果表明SLS浓度对抑制T.f的影响明显。当温度为25℃,pH为3,SLS浓度为7.5mg/L时,抑制作用最强。
Under the biologic oxidation of the thiobacillus ferrooxidans（ T. f）, the pyrite in coal would be oxidized to sulphoacid and iron ions, which would be the main cause to form the acid mine water. Taking the oxidation rate and speed of the ferrous ions as the indexes, the orthogonal test as the three factors and three levels was conducted with temperature, ph and sodium lauryl sulfate （SLS）. The paper discussed the factors to control the oxidation function of the thiobacillus ferrooxidans to reach the target from the water source to control the acid mine water. The results showed that the SLS density would be obviously influence to the control of thiobacillus ferrooxidans（ T. f）. When the temperature was 25℃, pH value was 3, SLS density was 7.5mg/L, the control effect of thiobacillus ferrooxidans（T, f） would be max.
出处
《煤炭工程》
北大核心
2008年第10期94-96,共3页
Coal Engineering
