Abstract：The current study mainly discussed the influence of AQS, the concentration of the electron donor and goethite on the abiotic reduction of goethite. The electron shuttle, AQS, can enhance the degree and extend of goethite abiotic reduction. Without AQS addition, the phenomenon of goethite abiotic reduction was slim; while with the addition of AQS, the abiotic reduction dramatically increased after a certain lag time, the time course of produced Fe(ΙΙ) concentration showed a typical characteristic of Slogistic model. In the reaction system containing different goethite contents and fixed lactate content, the Slogistic model fit calculations showed the significant correlation between the reaction time and produced Fe(ΙΙ) concentration with a correlation coefficient, Adj. R2, in the range of 0.9887 to 0.9953. When reaction system was lacked of electron donor, the characteristic of Slogistic model was not obvious, while the electron donor concentrations were adequate, the Adj. R2 could be high enough to 0.9967. The concentration of electron donor/acceptor and presence/absence of electron shuttle could have a certain influence on the Slogistic model fitted parameters.
朱维晃, 臧辉, 黄廷林. 针铁矿的非生物还原解离特征及Slogistic模型拟合[J]. 中国环境科学, 2011, 31(12): 1991-1997.
ZHU Wei-Huang, ZANG Hui, HUANG Ting-Lin. The characteristics and slogistic model fit of the abiotic goethite reduction. . CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(12): 1991-1997.
