褐煤/麦饭石固定SRB颗粒处理含铬酸性矿山废水试验  

Treatment of chrome-containing acid mine drainage with lignite or medical stone fixed SRB particles

作　　者：狄军贞[1] 刘佳伟 郭俊杰 付赛欧 DI Junzhen;LIU Jiawei;GUO Junjie;FU Saiou(School of Civil Engineering,Liaoning Technical University,Fuxin 123000,China)

机构地区：[1]辽宁工程技术大学土木工程学院,辽宁阜新123000

出　　处：《水资源与水工程学报》2020年第1期29-32,43,共5页Journal of Water Resources and Water Engineering

基　　金：国家自然科学基金项目(41672247、41102157);辽宁省“兴辽英才”青年拔尖人才计划项目(XLYC1807159);辽宁省自然科学基金项目(2015020619);辽宁省教育厅一般项目(LJYL031)。

摘　　要：针对硫酸盐还原菌(SRB)生物法处理酸性矿山废水(AMD)易受重金属离子和高酸度的抑制与毒害等问题,采用玉米芯为碳源的微生物固定化技术,分别构造以麦饭石和褐煤为填料的1^#和2^#固定化颗粒,对比处理含Cr^6+、SO4^2-的模拟酸性矿山废水的效果。实验结果表明:1^#颗粒废水中COD的平均释放量(898 mg/L)要高于2^#颗粒废水中COD的平均释放量(698.9 mg/L),而2^#颗粒对AMD中p H提升(4~7.47)和对Cr^6+、SO4^2-的平均去除率(96.57%、36.50%)要高于1^#颗粒对AMD中p H提升(4~7.04)和对Cr^6+、SO4^2-的平均去除率(85.96%、20.85%)。可见,褐煤颗粒有比麦饭石颗粒较强的调酸、吸附金属离子和异化硫酸盐活性的能力。In order to solve the problems caused by biological treatment of acid mine drainage(AMD)using sulfate reducing bacteria(SRB),in which SRB was easily suppressed and poisoned by heavy metal ions and high acidity,microbial immobilization technology with corncobs as carbon source was used to construct 1^#and 2^#immobilization particles with medical stone and lignite as fillers,respectively,and the simulated acid mine waste water containing Cr^6+and SO4^2-was treated.The experimental results showed that the average release of COD in 1^#particle waste water(898 mg/L)was higher than that in 2^#particle waste water(698.9 mg/L),while the pH promotion(4~7.47)and the average removal rates of Cr^6+and SO4^2-in AMD by 2^#particles(96.57%,36.50%)were higher than that of p H(4~7.04)and Cr^6+,SO4^2-(85.96%,20.85%)in AMD by 1^#particles.It can be seen that lignite particles have stronger abilities of acid regulation,metal ions attachment,and sulfate activity dissimilation than those of medical stone particles.

关 键 词：玉米芯碳源 硫酸盐还原菌 固定化颗粒 褐煤 麦饭石 微生物固定化技术 Cr^6+去除率 铬酸性矿山废水 

分 类 号：X703[环境科学与工程—环境工程]