A magnetic field of 5 Hz and magnetic field intensities of 15.9 and 57.8 m T, generated by 40 circular magnets, was investigated with the objective of influencing mixed culture in the removal of chromium and total organic carbon (TOC) from an effluent contaminated with Cr(VI) and verifying the effects on mixed culture morphology and the retention of chromium by microbial cells during the treatment process. For the magnetic field time of 7 h and 48 min, the removal of Cr(VI), total Cr, and TOC corresponded to 99.97 ± 0.01, 74.2 ± 1.2, and 25.1 ± 1.5 %, respectively. This was higher than results obtained when the bioreactor was operated without a magnetic field for the evaluated time. The amount of chromium retained in the cells by the experiments with and without magnetic fields was 0.59 and 0.53 %, respectively, justifying one of the mechanisms that increase the removal. The morphology of the mixed culture did not show changes in the images from scanning electron microscopy with the presence of chromium or the magnetic field.

研究了由40个圆形磁体产生的5 Hz磁场和15.9和57.8 m T的磁场强度，目的是影响混合培养从铬污染的废水中去除铬和总有机碳（TOC）。 （VI）并验证在处理过程中微生物细胞对混合培养物形态和铬保留的影响。对于7 h和48 min的磁场时间，Cr（VI），总Cr和TOC的去除分别相当于99.97±0.01、74.2±1.2和25.1±1.5％。这高于当生物反应器在没有磁场的情况下运行一段评估的时间所获得的结果。在有和没有磁场的情况下，通过实验在细胞中保留的铬量分别为0.59％和0.53％，证明增加清除量的机制之一。在存在铬或磁场的情况下，混合培养物的形态在扫描电子显微镜的图像中未显示变化。