用电凝增强的预处理,以提高包装床的高效运行,无氧过器处理液:动力和性能评估
Ashmita Kundu1, Ajay S Kalamdhad1
1Department of Civil Engineering, Indian Institute of Technology, Guwahati, Assam, India.
Bioresource technology
|December 5, 2025
概括
这项研究介绍了一种用于处理垃圾填埋场液的新型混合系统. 电凝预处理后使用包装床上流无氧过器 (PBUAF) 有效地去除各种污染物,包括反化合物.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 废物管理 废物管理
背景情况:
- 年轻,高强度的垃圾填埋污水会给环境带来重大挑战.
- 有效的处理需要能够解决常见和反抗性有机污染物的方法.
- 印度城市固体废弃物的组成影响了水的特性.
研究的目的:
- 评估一个连续处理系统,将电凝和包装床上流无氧过 (PBUAF) 结合起来,用于垃圾填埋场的液.
- 评估关键污染物的去除效率,包括化学氧气需求 (COD),总有机碳 (TOC) 和总基尔达尔 (TKN).
- 研究系统在模拟降雨条件下去除持久有机污染物的有效性.
主要方法:
- 采用了两阶段的治疗过程:使用电极进行电凝,然后进行PBUAF.
- 垃圾填埋场反应堆在不同的水文条件下运行 (有和没有模拟雨).
- 在PBUAF处理之前,液补充了脱油大米 (DORB). 动力模型 (Stover-Kincannon,Monod) 被用于分析.
主要成果:
- 电凝预处理实现了40-50%的污染物去除.
- PBUAF阶段显示了高的去除效率:COD为93.9%,TOC为97.46%,TKN为94.24%.
- 混合系统有效地去除了长期存在的有机污染物,如乙烯,和甲酸盐.
- 优化条件包括有机载荷率 (OLR) 为5.107gCOD/L/day和8天的液压保留时间.
结论:
- 电凝-PBUAF混合系统对于处理年轻,高强度的垃圾填埋污水非常有效.
- 这种方法有效地去除了广泛的有机污染物,包括那些被认为是反抗性的污染物.
- 该系统显示出对垃圾填埋场污水处理的可持续性有希望,特别是在不同的水文条件下.
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