Aiming at sulfate reducing bacteria (SRB) dealing with acid mine drainage (AMD) has some problems such as need sufficient carbon source, easy disturbance by external factors, has poor effect with independent action, using microorganism immobilization, made the highly active raw-iron immobilized particles with raw-iron as mainly matrix material, and combined with SRB sulfate, medical stone and corncob, take raw-iron immobilized particles as the research object, explore its physicochemical characters and the adsorption law of Mn2+ in this paper. The results showed that, the raw-iron immobilized particles can resist acid solution which pH value is 4 (such as AMD), and keep a best stability in alkaline solution and salt solution, its adsorption capacity of Mn2+ agree with Freundlich isotherm equation (R2=0.98868, 1=0.4896), its adsorption kinetics consistent with Elovich kinetic model (R2=0.9964). Therefore, Mn2+ was easy to be absorbed on the surface of raw-iron immobilized particles, and it was adaptive to treat AMD.%针对硫酸盐还原菌(SRB)处理煤矿酸性废水(AMD)需要充足碳源,易受外界因素干扰,单独作用效果差等问题,利用微生物固定化技术,以生铁屑作为主要基质材料,并联合SRB污泥、麦饭石及玉米芯颗粒,制备高活性生铁屑固定化颗粒,以完全活化的固定化颗粒为研究对象,探究生铁屑固定化颗粒的理化性状及对Mn2+的吸附规律.结果表明:颗粒能够抵抗pH值为4的酸溶液(如AMD),并在碱、盐溶液中保持较好的稳定性,对Mn2+的吸附容量符合Freundlich等温吸附方程(R2=0.98868,1=0.4896),吸附动力学符合Elovich动力学模型(R2=0.9964),可见,所制备的固定化颗粒对Mn2+具有表面快速吸附的能力,且对处理AMD具有一定的适应性.
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