双A对硫自化-安纳莫克斯微生物联合体中去除的影响:弹性,生物转化和毒性
在PubMed上查看摘要
概括
此摘要是机器生成的。双A (BPA) 影响硫自化-安纳莫克斯 (SAD/A) 联合体. 低水平的BPA增强了的去除,而高水平则抑制了Anammox,尽管该联盟可以生物降解BPA.
科学领域
- 环境微生物学
- 废水处理技术
- 污染物的生物修复
背景情况
- 废水通常含有内分泌干扰化合物,如双A (BPA).
- 在废水处理中,硫自营脱-安纳莫克斯 (SAD/A) 联盟对于去除至关重要.
- BPA对SAD/A微生物过程及其生物降解途径的影响尚不完全理解.
研究的目的
- 研究双A (BPA) 对硫自化-安纳莫克斯 (SAD/A) 微生物联合体的去效率的影响.
- 为了阐明微生物群落结构的变化,以应对BPA暴露.
- 确定BPA无氧生物降解途径并评估其中间产物的毒性.
主要方法
- 进行了批量测试,以评估不同度的和BPA降解.
- 使用16S rRNA基因测序进行了微生物群体分析.
- 确定BPA的生物降解途径和中间毒性评估.
主要成果
- BPA表现出双相作用:低度 (1μg/L50 mg/L) 刺激了脱和总去除.
- 高 BPA 度 (50 mg/ L) 抑制了 Anammox 细菌,导致氨去除和酸盐积累减少.
- 两种无氧生物降解途径被确定,尽管一种中间物质 (4-甲) 显示出慢性毒性.
结论
- 微生物团队可以同时去除和减轻BPA污染.
- 这些联盟通过连续转化证明了有效的BPA排毒,尽管有中等毒性.
- 这些发现提供了处理含有内分泌干扰化合物污染的含废水的策略.
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