Regulation of aerobic granular sludge reformulation after granular sludge broken: Effect of poly aluminum chloride (PAC)
发布时间：2024-08-09
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- 所属单位：
- 环境与市政工程学院
- 发表刊物：
- Bioresource Technology
- 关键字：
- 中文关键字：好氧颗粒污泥，再形成，调控，聚合氯化铝，物化特性，英文关键字：Aerobic granular sludge；Re-formation；Regulation；Po
- 摘要：
- The present study focuses on the effect of poly aluminum chloride (PAC) on the re-formation of aerobic granular sludge after its rupture. The morphological changes, physical characteristics such as SVI, mechanical strength and surface properties of aerobic granular sludge during the re-formation process of broken granules were investigated. Moreover, components [protein (PN), polysaccharides (PS)) and distributions (soluble, loosely-bound (LB), tightly-bound (TB)] of extracellular polymeric substances (EPS) in sludge flocs were taken into consideration. It was found that the effect of charge neutralization and bridging induced by PAC treatment improved the surface properties of sludge, the re-formed granules had a larger size, more compact structure and that the removal performance of pollutants after chemical coagulation had improved. The results of correlation analysis demonstrated that PN in EPS correlated well with the surface characteristics and settling ability of sludge flocs, and PAC treatment strengthened the influence, further accelerated the reformation of granular sludge.
- 备注：
- 刘永军
- 合写作者：
- 王福琨
- 第一作者：
- 刘喆,刘永军
- 论文类型：
- 期刊论文
- 卷号：
- 卷：158
- 期号：
- 期：3
- 页面范围：
- 页：201-208
- 是否译文：
- 否
- 发表时间：
- 2014-08-01