在混合激活污泥膜气化生物膜反应器 (H-MABR) 中同时化和脱化,用于从低COD/N交流流中去除:试点规模的研究
Hengyi Liu1, Lei Li1, Wenjie Ye1
1Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, PR China.
Journal of environmental management
|August 4, 2024
概括
这项研究表明,混合活性污泥膜气化生物反应器 (H-MABR) 有效地处理垃圾填埋场的液,实现化学氧气需求 (COD) 和总 (TN) 的高清除率. 该H-MABR是一个成本高效的解决方案,用于间流污染控制.
科学领域:
- 环境工程 环境工程
- 废水处理 废水处理
- 微生物生态学 微生物生态学
背景情况:
- 垃圾填埋场的相互流动造成了表面和地下水污染的重大风险,特别是在丘陵地区.
- 之前的实验室研究表明,混合活性污泥膜气化生物反应器 (H-MABR) 的潜力是治疗低COD/TN比率的交流.
- 关于H-MABR在垃圾填埋场间流处理中的有效性,现实应用数据有限.
研究的目的:
- 评估H-MABR在试点规模处理垃圾填埋场间流的现场性能.
- 评估关键污染物的去除效率,包括COD,TN和氨.
- 分析微生物社区结构和功能基因,涉及到去除.
主要方法:
- 在垃圾填埋场进行试点规模的H-MABR操作.
- 对COD,TN和氨的废水质量监测.
- 用于微生物社区分析的16S rRNA基因测序和用于功能基因预测的PICRUSt.
主要成果:
- H-MABR实现了高的去除效率:COD为87.1%,TN为80.9%,氨为97.9%.
- 废水中的污染物度符合中国对垃圾填埋场的国家标准 (GB16889-2008).
- 微生物分析揭示了不同的社区和关键的功能基因的存在,用于化-脱化,在外环中丰富度更高.
结论:
- 在现实条件下,H-MABR是一种高效和强大的技术,用于处理垃圾填埋场的互流.
- 该系统具有显著的除能力,并符合严格的环境法规.
- H-MABR是一种具有成本效益 (¥2.78/m3) 和抗冲击负载的解决方案,用于垃圾填埋场的液管理.
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