降低低碳比污水处理造成的氧化排放:使用甘包发酵液用于建造湿地
Guosheng Zhang1, Qingju Hao2, Shiwen Xu1
1Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), College of Resources and Environment, Southwest University, Chongqing 400715, China.
Bioresource technology
|July 9, 2024
概括
回收的甘包发酵液 (FL) 改善了去除和减少了氧化物 (N2O) 在建造湿地 (CWs) 的排放. 这种可持续的碳来源增强了脱和微生物活动.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 水处理 处理水的方法
背景情况:
- 建筑湿地 (CWs) 对于废水处理至关重要.
- 优化碳 (C/N) 比率是有效去除和减少温室气体排放的关键.
- 需要可持续的碳来源来补充CW的影响.
研究的目的:
- 评估甘包油发酵液 (FL) 作为CW中的补充碳来源.
- 研究FL对转化和温室气体排放的影响.
- 为了将FL与糖糖作为CW中的碳来源进行比较.
主要方法:
- 甘包油被转化为发酵液 (FL).
- FL被添加到建筑湿地 (CWs) 中,以调整碳与 (C/N) 的比率.
- 分析了物种,N2O和CH4流,微生物群落和脱基因.
主要成果:
- 与糖糖相比,添加FL导致酸盐- (NO3-N) 的去除速度更快.
- 最低的N2O流量在C/N比率为3且添加FL时被观察到.
- 随着FL的使用,CH4的排放量略高一些,但仍处于较低的范围内.
- FL改变了微生物群落,增加了脱基因丰富度.
结论:
- 甘包FL是一种有效和可持续的碳来源,用于CWs.
- FL的应用提高了去除效率.
- 添加FL有助于减轻CWs的氧化 (N2O) 排放.
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