废水废水排放和不完全的脱驱动河流CO2,CH4和N2O排放
Ida F Peterse1, Lisanne Hendriks2, Stefan T J Weideveld2
1Department of Microbiology, Radboud Institute for Biological and Environmental Sciences, Radboud University, P.O. Box 9010, 6500 GL Nijmegen, the Netherlands; Department of Ecology, Radboud Institute for Biological and Environmental Sciences, Radboud University, P.O. Box 9010, 6500 GL Nijmegen, the Netherlands.
The Science of the total environment
|August 28, 2024
概括
废水排放量显著增加了河流中的温室气体 (GHG) 排放量,包括二氧化碳 (CO2),甲 (CH4) 和氧化 (N2O). 这项研究强调了减轻废水影响的必要性,以减少河流温室气体贡献.
科学领域:
- 环境科学 环境科学
- 河流生态 河流生态
- 温室气体排放量 温室气体排放量
背景情况:
- 河流是温室气体 (GHG) 的重要来源,如二氧化碳 (CO2),甲 (CH4) 和氧化 (N2O).
- 人为活动,特别是农业下水和废水排放,可以提高营养度,从而增加河流温室气体排放.
- 处理过的废水废水对河流温室气体排放的确切影响仍然不够理解.
研究的目的:
- 调查市政废水废水排放对两个低地河流中溶解的温室气体度和流量的影响.
- 分析废水排放,水质参数,沉积物组成和微生物群落之间的关系.
- 量化废水对所研究河流系统中二氧化碳,甲和氧化物排放的影响.
主要方法:
- 现场测量溶解的CO2,CH4和N2O度和流量,上游,下游以及Linge和Kromme Rijn河的废水排放点.
- 分析水柱特性 (例如,NO3-) 和沉积物组成.
- 使用沉积物和水样中的16S rRNA基因测序进行微生物社区分析.
主要成果:
- 温室气体排放量与城市和农业河流的温室气体排放量相当,二氧化碳排放量在排放地点达到峰值.
- 甲 (CH4) 排放量在下游2公里内显著增加,这表明由于废水碳和营养物质输入,甲生成活性受到刺激.
- 较高的N2O度与酸盐水平相关,这表明脱不完全,甲原性古生物的丰富性增加了排放点的下游.
结论:
- 废水废水排放明显增加了河流下游的温室气体排放.
- 这些发现强调了废水管理在控制河流温室气体贡献方面的关键作用.
- 对废水废水的缓解策略至关重要,以减少对河流生态系统和全球温室气体预算的整体影响.
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