工业水处理 ›› 2024, Vol. 44 ›› Issue (3): 30-36. doi: 10.19965/j.cnki.iwt.2023-0101

• 专论与综述 • 上一篇    下一篇

好氧颗粒污泥资源化中类藻酸盐胞外多糖研究进展

李沛1(), 万俊锋1,2(), 马逸飞1, 黄陈明慧1, 吴波1,2   

  1. 1. 郑州大学生态与环境学院, 河南 郑州 450001
    2. 河南省环境与资源国际联合实验室, 河南 郑州 450001
  • 收稿日期:2023-12-15 出版日期:2024-03-20 发布日期:2024-03-21
  • 作者简介:

    李沛(1999— ),硕士研究生。E-mail:

    万俊锋,博士,教授。E-mail:

  • 基金资助:
    河南省重点研发与推广专项(科技攻关)项目(212102110030); 国家大学生创新创业项目(202210459068)

Research progress of alginate-like exopolysaccharides in aerobic granular sludge reclamation

Pei LI1(), Junfeng WAN1,2(), Yifei MA1, Chenminghui HUANG1, Bo WU1,2   

  1. 1. School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China
    2. Henan International Joint Laboratory of Environment and Resources, Zhengzhou 450001, China
  • Received:2023-12-15 Online:2024-03-20 Published:2024-03-21

摘要:

好氧颗粒污泥(AGS)资源化研究已成为AGS技术的重点研究方向之一,从AGS中提取所得的类藻酸盐胞外多糖(ALE)被认为是好氧颗粒污泥中最具价值的可回收资源之一。在污水处理厂技术变革聚焦于高附加值产物回收的背景下,AGS中ALE的回收应用已经形成一条较清晰的通路。首先基于AGS的形成机理及其组分,分析了AGS胞外聚合物(EPS)中所含有的ALE的独特结构和性质,总结了国内外回收和评价ALE的方法,并阐述了废水有机负荷率、碳氮比、盐度、污泥颗粒粒径、污泥停留时间等因素对ALE产量的影响,之后对同步回收ALE和其他附加值产物的研究进行了总结,最后通过对ALE广泛应用范围和实际经济价值的讨论,提出了ALE在AGS资源化方面的潜在研究方向。

关键词: 好氧颗粒污泥, 资源化, 高附加值产物, 类藻酸盐胞外多糖

Abstract:

The research on recycling has become the focus of the research direction of aerobic granular sludge(AGS) technology,and alginate-like exopolysaccharides(ALE) extracted from AGS is considered to be one of the most valuable recyclable resources in AGS. At present,the technological revolution of sewage treatment plant focuses on the recovery of high value-added products,the recovery and application of ALE has formed a clear path. Based on the formation mechanism and components of aerobic granular sludge,this paper analyzed the unique structure and properties of ALE,summarized the recovery and evaluation methods of ALE at home and abroad,and discussed the effects of factors such as organic load rate,carbon to nitrogen ratio,salinity,particle size and sludge residence time on ALE production. Synchronous recovery of ALE and other value-added products was described. Finally,by discussing the wide application range and actual economic value of ALE,the potential research direction of ALE in the reclamation of AGS was put forward.

Key words: aerobic granular sludge, resource recovery, high value-added product, alginate-like exopolysaccharide

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