煤矸石井下填充后微生物降解残渣的分析

通过对煤矸石进行微生物降解试验，探讨煤矸石并下填充的可行性并为填充后的污染控制提供理论依据。试验结果表明：煤矸石中有机质可以被微生物降解，浸泡和接种物驯化有利于微生物降解有机质，而且接种物含量和浸泡时间影响残渣中金属Ag、Cu、CO和Fe的含量；试验后残渣中CaO、MgO、SiO2不会对地下水造成太大影响，但残渣中Fe2O3含量相对较大，将可能引起地下水中Fe超标，可能对地下环境有一定的影响。

THE RESIDUE ANALYSIS OF MICROBIAL DEGRADATION ABOUT COAL GANGUE FILING THE UNDERGROUND

Through doing the microbial degradation experiments of coal gangue, this text discussed the possibility of coal gangue filling underground and providing a theoretical basis for the control of pollution after filling. The results show that：organic matter in the gangue can be degraded by kinds of microbial, soaking and domesticating of vaccination are benefit to microbial degradation of organic matter. And the content of vaccination and the soaking time have an impact on the content of metal Ag, Cu, Co and Fe in the residue; after the test, CaO, MgO, SiO2 in the residue will not have too great effect on groundwater, but the content of Fe2O3 in the residue is relatively larger, and will be likely to cause Fe in the groundwater exceeding the Standards, and may have certain effect on underground environment.