Different reactors (SBBR, Fe(0)-SBBR, Fe(Ⅱ)-SBBR, Fe(Ⅲ)-SBBR) were employed in this paper to investigate the treating processes of acrylic fiber wastewater by different valence forms of iron as well as the variation of microbial communities during these processes. The results showed that acrylic fiber wastewater was well treated by Fe(0)/Fe(Ⅱ)/Fe(Ⅲ)-SBBR, especially the removal rate of NH4+-N was above 90%. And, the Fe(0)-SBBR worked best throughout the entire operating cycle. Illumina MiSeq high throughput sequencing was also utilized to analyze the structure of microbial communities during the processes. It was found that the dominant bacteria were significantly different at the genus level between Fe(0)/Fe(Ⅱ)/Fe(Ⅲ)-SBBR systems. Gemmata、Planctomyces、Aridibacter、Fluviicola were the dominant genera in Fe(0)-SBBR. Thermomonas、Aridibacter、Bacillus、Paracoccus were the dominant genera in Fe(Ⅱ)-SBBR. Planctomyces、Bacillus、Nostocoida、Aridibacter were the dominant genera in Fe(Ⅲ)-SBBR. Compared with control group SBBR, Fe (0)-SBBR could strongly stimulate the growth of bacteria which were at a relative disadvantage. Moreover, the change of microbial community by Fe (0) and Fe (Ⅲ) were greater than that by Fe (Ⅱ).
谢慧娜, 王亚娥, 李杰, 赵炜, 嵇斌. 不同价态铁处理腈纶废水过程中菌群结构分析[J]. 中国环境科学, 2018, 38(9): 3406-3412.
XIE Hui-na, WANG Ya-e, LI Jie, ZHAO Wei, JI Bin. Analysis of microbial community structure in acrylic fiber wastewater treated by different valence forms of iron. CHINA ENVIRONMENTAL SCIENCECE, 2018, 38(9): 3406-3412.
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