机械洞察力酸盐类型的脱化去除驱动铁硫循环介导的电子转移在酸盐基构建湿地中的机制洞察力
Sihan Zhang1, Jiaxing Lu2, Zizhang Guo1
1School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China.
Bioresource technology
|January 6, 2026
概括
矿增强的建筑湿地有效地同时去除和. 这一过程,亚酸盐类型的非化去除 (NiDPR),改善了电子转移和微生物群落,以有效处理废水.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 生物地质化学生物地质化学
背景情况:
- 传统的建筑湿地 (CCW) 在同时去除和方面面临挑战,因为难以保持酸盐积累和有效的电子转移.
- 亚酸盐类型的非化去除 (NiDPR) 工艺为低碳/低废水处理提供了一个有前途的解决方案,能耗减少.
研究的目的:
- 研究将矿纳入建筑湿地 (ICW) 的有效性,以提高同时去除和的效果.
- 阐明皮里特添加促进NiDPR过程的潜在机制.
主要方法:
- 传统建造湿地 (CCW) 和用矿集成建造湿地 (ICW) 之间的和去除效率的比较.
- 特定活动批量测试,分析硫中间体对化工艺的影响.
- 微生物社区分析,以评估关键细菌群和功能基因的变化.
- 部分最小平方路径建模,以确定影响移除效率的主要因素.
主要成果:
- 与CCW相比,ICW表现出明显更高的 (90.94%) 和 (85.08%) 清除效率.
- 酸盐的添加促进了部分化,通过抑制氧化酸盐的细菌,促进了NiDPR.
- 由于铁硫循环,使得脱聚酸盐积聚生物 (DPAOs) 富含量增加了2.26倍,电子转移效率提高了2.01倍.
- 关键基因 (ppk,nirS) 的丰富度增加,这些基因参与了多酸盐合成和酸盐减少.
结论:
- 在建筑湿地中加入矿是一种有效的策略,可以通过NiDPR工艺实现高效的同时去除和.
- 皮里特通过促进部分化,丰富DPAO,并通过铁硫循环加速电子转移来增强NiDPR.
- 加速电子转移是推动矿改造的废水处理工程湿地性能提升的主要机制.
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