用添加钻石电极预处理的机械研究,用于加强城市污泥的脱水
Zhiwei Zhou1, Qing Li1, Yuanyi Sun1
1School of Resources & Environmental Engineering, Guizhou University, Guiyang, People's Republic of China.
Environmental technology
|January 28, 2026
概括
用添加的钻石 (BDD) 电极增强了城市污泥的排水. 这种处理破坏了微生物细胞,并通过产生基激素来降低污泥的水友性,将结合水转化为自由水.
科学领域:
- 环境工程 环境工程
- 电化学 电化学 电化学
- 水处理 处理水的方法
背景情况:
- 市政污泥的生产正在迅速增加,这给城市发展带来了重大处置挑战.
- 有效的污泥排水对于减少处理量和相关成本至关重要.
研究的目的:
- 调查添加钻石 (BDD) 电极预处理的机制和有效性,以提高城市污泥的脱水能力.
- 使用直角实验优化排水条件.
主要方法:
- 进行了直角实验,以优化电流密度,温度,pH值和反应时间.
- 泥特定阻力 (SSR) 被用作主要评估指数.
- 采用了包括库马西闪亮蓝G250在内的技术,色色度测量方法,紫外线光谱测量,低场核磁共振 (LF-NMR),自由基掩蔽和里埃变换红外光谱 (FTIR).
主要成果:
- 确定了BDD电极处理的最佳条件,显著减少SSR.
- BDD电极破坏了污泥中的微生物细胞结构 (细胞外聚合物,细胞壁,细胞膜).
- 由BDD电极产生的基攻击了细胞外聚合物 (EPS) 中的水友性功能组,减少了水友性,并将结合的水转化为自由水,这是LF-NMR和FTIR所证明的.
结论:
- BDD电极预处理是提高城市污泥脱水能力的高效方法.
- 该机制涉及细胞破坏和通过基基生成修改EPS特性.
- 这种方法为城市地区的污泥管理挑战提供了有希望的解决方案.
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