实验首先对ZSM-5分子筛(MS)进行碱改性,然后在经碱改性的ZSM-5分子筛(A-MS)上负载巨大芽孢杆菌,制备得到碱改性ZSM-5分子筛负载微生物(A-MS-BM)吸附剂,最后分别对MS、A-MS及A-MS-BM对含pb2+重金属离子废水进行吸附去除实验研究.结果表明:当pb2初始浓度为20 mg/L,吸附剂用量为1.0 g/L时,MS和A-MS对pb2+的去除率分别为84.35%和94.60%,A-MS较MS来说吸附平衡时间缩短至30 min,具有较高的吸附效率.利用A-MS-BM对pb2+进行吸附实验,与A-MS吸附剂相比,A-MS-BM对pb2+的去除率提高到99.80%.说明制备的A-MS-BM对pb2+具有很好的吸附效率,扩大了分子筛和微生物在水处理技术方面的应用范畴,为重金属废水的处理提供一种新的思路.
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