植物-微生物参与:如何在建造的湿地中实现和的去除和碳减排
Zhihao Xian1, Fucheng Guo2, Mengli Chen3
1Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, PR China; College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China.
Bioresource technology
|May 4, 2024
概括
在建筑湿地 (CWs) 中的二氧化 (MnO2) 增加了的去除和植物的吸收. 这种新的方法显著减少了排放的温室气体 (CO2,CH4,N2O) 从尾水处理.
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:
- 建筑湿地 (CWs) 由于尾水中的碳赤字,经常面临去除的挑战.
- 传统的固体碳添加剂用于脱化可以无意中增加碳排放.
- 开发可持续的方法来改善去除和减轻CW中的温室气体排放是至关重要的.
研究的目的:
- 为了研究将二氧化 (MnO2) 纳入聚烯酸基板中的有效性,以便在CW中增强去除.
- 评估MnO2修饰基板对温室气体 (CO2,CH4,N2O) 排放的影响.
- 探索改善去除和减少排放背后的机制,包括微生物活动和植物吸收.
主要方法:
- 聚卡普罗拉克基板被用MnO2修改,并用于CWs用于尾水处理.
- 去除效率 (NH4+-N,NO3--N) 的量化.
- 在高负荷下测量温室气体排放 (CO2,CH4,N2O).
- 分析了微生物群落,酶活动和植物光合作用颜料.
主要成果:
- 增强MnO2的基板显著提高了- (NH4+-N) 和酸- (NO3--N) 的去除效率,分别提高了48.26-59.78%和96.84-137.23%.
- 温室气体排放量大幅下降:CO2减少了147.23-202.51%,CH4减少了14.53-86.76%,N2O减少了63.36-87.36%.
- 改善与丰富的去酶,增加植物吸收,增强的甲类植物活动和增加的光合作用颜料有关.
结论:
- 将MnO2纳入聚烯酸基板是一种有前途的策略,用于增强CW中的去除.
- 这种方法有效地减少了多种温室气体排放,为废水处理提供了双重好处.
- 这些发现为优化CW性能提供了新的见解,无论是营养物质的去除还是气候变化减缓.
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