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Updated: Jun 5, 2025

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基于Fe2+/周期性调节的增强污泥固体液体分离,加上聚氧甲酸盐:细胞破坏和蛋白质吸附

Jing Deng¹, Hui Wang², Ruhao Gao²

¹College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310023, China; Zhejiang Key Laboratory of Civil Engineering Structures & Disaster Prevention and Mitigation Technology, Hangzhou 310023, China.

Journal of environmental management

|December 4, 2024

概括

将聚氧甲酸盐 (POM) 添加到铁 (II) /周期酸盐 (PI) 污泥调节过程中,可显著提高除水效率. 这种Fe2+/PI/POMs处理通过破坏细胞和减少水友性来改善污泥脱水.

科学领域:

环境科学环境科学
化学工程是化学工程的重要组成部分.
材料科学材料科学材料科学

背景情况:

废弃物活性污泥的排水对于废物管理和资源回收至关重要.
现有的方法在实现深度排水方面往往面临局限性.
需要新的调节剂来提高污泥脱水能力.

研究的目的:

调查Fe2+/周期酸盐 (PI) 与聚氧甲酸盐 (POMs) 结合用于污泥深度排水的疗效.
阐明POM增强污泥脱水背后的机制.
评估Fe2+/PI/POMs调节对污泥特性和过质量的影响.

主要方法:

使用Fe2+/PI和Fe2+/PI/POMs在特定剂量 (0.20 mmol g-1 POMs的VSS) 的泥调节.
通过脱水性能测试对脱水效率的评估.
污泥特性分析,包括泽塔潜力,细胞外聚合物质 (EPS) 和细胞内物质.
通过静电排斥和激进攻击来研究污泥细胞破坏和相互作用机制.

主要成果:

与单独的Fe2+/PI相比,Fe2+/PI/POMs调节提高了污泥脱水效率42.93%,比Fe2+/PI更高.
POMs降低了静电排斥,促进了与污泥流体的相互作用,并促进了细胞损伤.
在Fe2+/PI/POMs过程中溶解了EPS,释放了细胞内物质,并降低了污泥的水友性.
米增强了污泥系统的电子传输能力,有助于过物脱.

结论:

2+/PI/POMs调节是一种高效的方法,可以实现深层污泥脱水.
增强的脱水归因于减少静电排斥,增加细胞破坏,降低污泥的水友性.
这种方法为污泥管理和随后的废水处理过程提供了潜在的好处.

关键词:

细胞损伤细胞损伤细胞外聚合物质是细胞外的聚合物质.铁 (Fe2+) /周期 (Fe2+) 的时间.功能组是指功能组中的功能组.聚氧甲酸盐是多氧甲酸盐中的一种.泥的排水是因为泥的排水.

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