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从轮胎芯片中释放的有机碳增强了水的基于皮里特颗粒的自营性脱

Zhiheng Xia¹, Tongtong Zhang¹, Ruobing Li¹

¹Low-carbon Water Environment Technology Research Center, School of Chemistry and Life Resource, Renmin University of China, Beijing, 100872, China.

Journal of environmental management

|August 19, 2025

概括

废旧轮胎芯片通过提供有机碳,显著提高混合营养物质脱. 这增强了微生物活动和酸盐去除效率,以化为基础的过器.

科学领域:

环境科学环境科学
环境微生物学环境微生物学
水处理技术水处理技术.

背景情况:

混合营养物去化对于从废水中去除酸盐至关重要.
使用 pyrite (FeS2) 的自转型脱化是一种成熟的方法.
有机物,特别是废弃物中的有机物在增强脱化中的作用需要进一步研究.

研究的目的:

调查废旧轮胎片作为有机物来源对以矿为基础的自性脱化的影响.
为了确定金与轮胎芯片的最佳比例,以最大限度地提高脱效率.
了解所观察到的增强背后的微生物和酶机制.

主要方法:

使用混合营养物质脱过器的实验设置,使用不同的FeS2:轮胎填充剂比率 (1:0, 2:1, 1:1, 1:2).
在5小时的固定的空床反应时间 (EBRT) 上测量酸盐去除效率.
分析微生物群落的丰富性和关键酶活动,参与和硫代谢.

主要成果:

酸盐去除效率随着轮胎芯片比率的提高而增加:29.20% (1:0),54.83% (2:1),71.13% (1:1) 和76.44% (1:2).
来自轮胎芯片的有机碳和来自松石的硫之间的协同作用导致了卓越的脱性能.
来自轮胎的有机碳刺激了微生物群体的生长,并增强了和硫代谢酶的活性.

结论:

废旧轮胎芯片是一种有效的有机碳来源,可以增强基于矿的脱化.
增加轮胎芯片比率可以通过为异质流程提供更多的有机碳来提高脱性能.
这种方法为废水中酸盐的去除提供了一种可持续和有效的方法,利用废物.

关键词:

脱化过程中的脱.混合型脱化混合型脱化皮里特矿是一种矿.轮胎芯片是什么意思轮胎芯片是什么意思

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