Study on the synergistic mechanism of microorganisms in the contact oxidation iron and manganese removal process
NIE Xin1, YU Na2,3, CHEN Yu-hang1, LV Yu-feng2, LI Bin2, LIU Qing-yu1, MENG Fan-bin4, WEI Huan-huan1, SUN Yi5, WANG Wei-qi5, SHEN Jian6, GAO Yu-bo6, YU Zhan-yong6
1. School of Engineering, Shenyang Agricultural University, Shenyang 110161, China; 2. China Institute of Water Resources and Hydropower Research, Beijing 100038, China; 3. School of Geography and Environment, Liaocheng University, Liaocheng 252000, China; 4. Anhui University of Science and Technology, College of Resources and Environment, Chuzhou 233100, China; 5. Liaoning Provincial Water Affairs Service Center, Shenyang 110000, China; 6. Shenyang Nearshore Water Development Co., Ltd, Liaozhong 110200, China
Abstract：This study focused on two typical contact oxidation iron and manganese removal water treatment plants in rural areas of Liaoning province. The microbial community structure during the process was analyzed using 16S rRNA high-throughput sequencing technology. The results indicated that the contact oxidation iron and manganese removal process could significantly alter the microbial community structure in the source water. Proteobacteria (43.86%) was the dominant phylum in the process. Gallionella and Flavobacterium were identified as the major iron and manganese functional genera. Correlation analysis revealed that even at relatively low abundance,genera like Rhodoferax (0.71%) and Sulfurospirillum (0.75%) showed significant positive correlations with colony counts, iron and manganese concentrations, indicating their important roles in this system. In-depth analysis using molecular ecological networks and topological properties, along with COGs functional predictions, revealed synergistic metabolic relationships among genera like Gallionella, Flavobacterium, Pseudomonas and Rhodoferax. Despite the influence of different treatment stages on microbial community structure, their metabolic effects remained relatively small, indicating the formation of a relatively stable coexistence system that plays an important role in the efficient and stable removal of iron and manganese ions in water.
聂鑫, 于娜, 陈禹杭, 吕育锋, 李斌, 刘庆玉, 孟凡彬, 魏欢欢, 孙毅, 王伟奇, 沈健, 高玉波, 于占勇. 接触氧化除铁除锰工艺中微生物的协同作用[J]. 中国环境科学, 2024, 44(4): 2044-2053.
NIE Xin, YU Na, CHEN Yu-hang, LV Yu-feng, LI Bin, LIU Qing-yu, MENG Fan-bin, WEI Huan-huan, SUN Yi, WANG Wei-qi, SHEN Jian, GAO Yu-bo, YU Zhan-yong. Study on the synergistic mechanism of microorganisms in the contact oxidation iron and manganese removal process. CHINA ENVIRONMENTAL SCIENCECE, 2024, 44(4): 2044-2053.
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