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通过与铁氧化物和硫酸盐还原有关的厌氧甲氧化,从消化的废水中去除溶解的甲

M Carolina Espinosa-Arzate¹, Edgardo I Valenzuela², Sonia Arriaga³

¹Laboratory for Research on Advanced Processes for Water Treatment, Engineering Institute, Campus Juriquilla, Universidad Nacional Autónoma de México (UNAM), Blvd. Juriquilla 2001, 76230 Querétaro, Mexico.

Bioresource technology

|February 27, 2025

概括

将氧化铁和硫酸盐添加到生物反应器中,可以有效地从废水消化剂中去除溶解的甲. 这种利用特定微生物的方法可以帮助减少废水处理厂的温室气体排放.

科学领域:

环境微生物学环境微生物学
生物技术是生物技术.
污水处理污水处理污水处理

背景情况:

废水消化剂中溶解的甲是一个重要的温室气体.
目前溶解甲的处理方法有限.
生物反应器为甲减排提供了一个潜在的途径.

研究的目的:

评估铁 (III) 氧化物和硫酸盐作为电子受体的有效性,用于去除溶解甲.
为了识别参与甲去除的微生物.
评估这种处理对减轻温室气体排放的潜力.

主要方法:

在具有不同电子受体的生物反应器中将消化物化 (血酸盐,甲酸盐,硫酸盐).
测量甲去除速度的测量.
矿物减少的分析.
16S rRNA基因测序用于微生物社区分析.

主要成果:

没有电子受体,甲去除是可以忽略不计的.
黑马和哥希的添加导致甲去除率分别为6.7和3.7克CH4/m3天.
同时添加硫酸盐和血,实现了最高的去除率 (9.1 g CH4/m3天).
甲细菌和甲醇尼纳被确定为关键的微生物.

结论:

铁氧化物和硫酸盐增强了生物反应器中溶解的甲的去除.
这个过程与微生物活动和矿物质减少有关.
这些发现表明,减少废水处理厂的甲排放和减轻全球变暖的可行策略.

关键词:

无氧消化消化无氧消化消化器可以消化.铁 (III) -AOMOM是一种迈特·米埃特 (Miet Miet) 是一个城市.这就是S-AOM.

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