论文部分内容阅读
为揭示高浊高铁锰矿井水中污染物在采空区内的迁移扩散规律,以采空区充填物为载体,进行了相应的动力学参数和动态迁移实验.结果表明:采空区充填物的弥散系数和吸附常数分别为D=3.12 m2/d,Kd(Fe)=11.07 mL/g,Kd(Mn)=7.543 mL/g;在连续运行条件下,距进水口0.5 m处,铁的去除率大于95%,浊度的去除率接近90%,但锰的去除率仅为40%,说明利用采空区充填物除锰时容易达到吸附饱和.建立了铁、锰在采空区内的迁移扩散模型,最大的误差仅为8.44%.该模型可进行迁移扩散预测,为设计参数的确定提供基础.
In order to reveal the regularity of migration and diffusion of pollutants in the water of high turbidity high manganese iron ore mine, the corresponding kinetic parameters and dynamic migration experiments were carried out using the gob fill as a carrier.The results show that The diffusion coefficients and adsorption constants were as follows: D = 3.12 m2 / d, Kd (Fe) = 11.07 mL / g and Kd (Mn) = 7.543 mL / g respectively. Under continuous operation conditions, The removal rate of turbidity is close to 90%, but the removal rate of manganese is only 40%, which shows that it is easy to reach the adsorption saturation when removing the manganese by using the mined-out area, and the iron and manganese are established in the goaf The maximum error of migration diffusion model is only 8.44% .This model can predict the migration and diffusion and provide a basis for the determination of design parameters.