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Effects of exposure to polyether sulfone microplastic on the nitrifying process and microbial community structure in aerobic granular sludge
Bioresource Technology ( IF 9.7 ) Pub Date : 2020-01-20 , DOI: 10.1016/j.biortech.2020.122827 Ronghua Qin 1 , Chengyuan Su 2 , Weihong Liu 1 , Linqin Tang 1 , Xinjuan Li 1 , Xue Deng 1 , Anliu Wang 1 , Zhengpeng Chen 1
Bioresource Technology ( IF 9.7 ) Pub Date : 2020-01-20 , DOI: 10.1016/j.biortech.2020.122827 Ronghua Qin 1 , Chengyuan Su 2 , Weihong Liu 1 , Linqin Tang 1 , Xinjuan Li 1 , Xue Deng 1 , Anliu Wang 1 , Zhengpeng Chen 1
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The effects of polyether sulfone (PES) microplastic concentration on the nitrifying process of aerobic granular sludge (AGS) were investigated together with the microbial community structure of AGS. The PES microplastic concentration inhibited the removal of ammonia nitrogen only to a small extent. The average total nitrogen removal rate increased by 5.6% after PES addition. On the 30th day, the addition of 0.5 g/L PES inhibited the specific nitrate reduction rate (SNRR) by 38.84 mg N/(g MLSS·h). Nitrite oxidase (NOR) performance of the AGS were inhibited with addition the PES. According to the high-throughput sequencing results, in the presence of PES, the abundance of Bacillales_Incertae Sedis XII reduced, while the abundance of Anaerolineaceaen increased in the AGS. According to the clusters of orthologous groups (COG) and kyoto encyclopedia of genes and genomes (KEGG), the content of cytochrome c-containing reduced and the Amino Acid Metabolism increased with addition 0.5 g/L PES microplastic.
中文翻译：
聚醚砜微塑料暴露对好氧颗粒污泥硝化过程及微生物群落结构的影响
研究了聚醚砜（PES）微塑料浓度对好氧颗粒污泥（AGS）硝化过程的影响以及AGS微生物群落结构。 PES微塑料浓度仅在很小程度上抑制氨氮的去除。添加PES后平均总氮去除率提高了5.6%。第30天，添加0.5 g/L PES使硝酸盐比还原率(SNRR)抑制38.84 mg N/(g MLSS·h)。添加 PES 会抑制 AGS 的亚硝酸盐氧化酶 (NOR) 性能。高通量测序结果显示，在PES存在下，AGS中Bacillales_Incertae Sedis XII的丰度降低，而Anaerolineaceaen的丰度增加。根据直系同源群簇(COG)和京都基因和基因组百科全书(KEGG)，添加0.5 g/L PES微塑料后，细胞色素c含量降低，氨基酸代谢增加。
更新日期：2020-01-20
中文翻译：
聚醚砜微塑料暴露对好氧颗粒污泥硝化过程及微生物群落结构的影响
研究了聚醚砜（PES）微塑料浓度对好氧颗粒污泥（AGS）硝化过程的影响以及AGS微生物群落结构。 PES微塑料浓度仅在很小程度上抑制氨氮的去除。添加PES后平均总氮去除率提高了5.6%。第30天，添加0.5 g/L PES使硝酸盐比还原率(SNRR)抑制38.84 mg N/(g MLSS·h)。添加 PES 会抑制 AGS 的亚硝酸盐氧化酶 (NOR) 性能。高通量测序结果显示，在PES存在下，AGS中Bacillales_Incertae Sedis XII的丰度降低，而Anaerolineaceaen的丰度增加。根据直系同源群簇(COG)和京都基因和基因组百科全书(KEGG)，添加0.5 g/L PES微塑料后，细胞色素c含量降低，氨基酸代谢增加。
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