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基于EEM-PARAFAC-SOM的成熟垃圾填埋场液处理中的优化操作模式

Yujia Duan¹, Bo Gao¹, Jiadong Liu¹

¹Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China; Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Xi'an 710055, China.

Waste management (New York, N.Y.)

|August 2, 2025

概括

这项研究优化了膜生物反应器 (MBR) 和催化臭氧化系统,用于处理垃圾填埋场的液. 综合系统有效地去除了有机物和氨,其中一个模式符合排放标准.

科学领域:

环境工程环境工程
水处理技术水处理技术
微生物生态学微生物生态学

背景情况:

成熟的填埋场液由于反抗性有机化合物而表现出低的生物降解性.
液的有效深度处理需要先进的系统,如膜生物反应器 (MBR) 和催化臭氧化.
优化处理序列对于提高液净化效率至关重要.

研究的目的:

开发和评估一个优化的合膜生物反应器 (MBR) 和催化臭氧化系统,用于成熟的液处理.
调查三种不同的操作模式的处理性能.
了解治疗过程对微生物社区结构和功能的影响.

主要方法:

设计了三个操作模式:内部循环 (模式1),MBR-催化臭氧化 (模式2) 和催化臭氧化-MBR (模式3).
通过监测化学氧气需求 (COD),氨 (NH4+-N) 和各种有机物质分数 (FRI) 来评估液处理效率.
用高通量测序分析了细菌群体的组成,以了解治疗期间的微生物变化.

主要成果:

模式1实现了99.6%的NH4+-N去除和>80%的COD去除.
模式2和3显示出高COD去除率,分别为92.4%和96.6%,而模式3的废水符合排放标准.
处理过程显著增加了蛋白质细菌的相对丰度 (37.95%至75.27%),包括未分类的Rhodobacteraceae (1.33%至30.16%),促进有机物降解和去除.

结论:

结合的MBR和催化臭氧化系统,特别是催化臭氧化-MBR序列,对于成熟的液处理非常有效.
催化臭氧化预处理通过分解大型有机分子以后在MBR中进行微生物降解来提高生物降解性.
细菌社区的转变,由蛋白质细菌主导,在优化系统中观察到的有机物和去除的增强中起着关键作用.

关键词:

连续处理系统的连续处理系统溶解有机物 (DOM) 是一种有机物.垃圾填埋场的洗液是如何处理的平行因子分析 (PARAFAC) 是一种分析方法.

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