[1]蓝梅,应媛媛,罗海慧,等.典型污水处理工艺的污泥调理机制研究[J].中国给水排水,2023,39(15):94-100.
　LAN Mei,YING Yuan-yuan,LUO Hai-hui,et al.Sludge Conditioning Mechanism of Typical Wastewater Treatment Processes[J].China Water & Wastewater,2023,39(15):94-100.
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典型污水处理工艺的污泥调理机制研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第15期 页码: 94-100 栏目: 出版日期: 2023-08-01
Title:
Sludge Conditioning Mechanism of Typical Wastewater Treatment Processes
作者:
蓝梅1,2,3， 应媛媛1,2,3， 罗海慧1,2,3， 黄文清1,2,3， 李思敏1,2,3
（1.河北工程大学 污水处理及资源化利用河北省工程研究中心，河北 邯郸 056038；2.河北工程大学 邯郸市城市水利用技术重点实验室，河北 邯郸 056038；3.河北工程大学 河北省水污染控制与水生态修复技术创新中心，河北 邯郸 056038）
Author(s):
LAN Mei1，2，3， YING Yuan-yuan1，2，3， LUO Hai-hui1，2，3， HUANG Wen-qing1，2，3， LI Si-min1，2，3
（1. Hebei Engineering Research Center of Sewage Treatment and Resource Utilization， Hebei University of Engineering， Handan 056038， China； 2. Handan Key Laboratory of Urban Water Utilization Technology， Hebei University of Engineering， Handan 056038， China； 3. Hebei Technology Innovation Center of Water Pollution Control and Water Ecological Remediation， Hebei University of Engineering， Handan 056038， China）
关键词:
污泥脱水;  过硫酸盐;  荧光蛋白;  三维荧光光谱
Keywords:
sludge dewatering;  persulfate;  fluorescent protein;  EEM
摘要:
为分析经过硫酸盐高级氧化处理后的市政污泥荧光蛋白组成和含量的变化及其对提高污泥脱水性能的影响，用二价铁活化过硫酸氢钾（PMS）调理三种不同工艺产生的市政污泥，并采用三维荧光光谱（EEM）和平行因子分析法（PARAFAC）进行分析。结果表明，类色氨酸蛋白是影响污泥脱水性能的重要因素，降低类色氨酸蛋白含量可以有效提高污泥脱水性能。从结构上看，在市政污泥胞外聚合物（EPS）中，类色氨酸蛋白的含量从内层紧密黏附型胞外聚合物（TB-EPS）向外层可溶性胞外聚合物（S-EPS）逐渐减少，其中TB-EPS是决定污泥脱水性能的微生物保护层。而以氧化沟为代表的污水处理工艺产生的剩余污泥比AAO和MSBR产生的剩余污泥更难脱水，这缘自于氧化沟工艺微生物处于内源呼吸期所形成的芽孢或其他休眠体保护，因此对于氧化沟污泥的调理脱水需要通过其他更有针对性的技术实现。
Abstract:
This paper conditioned the municipal sludge produced by three different processes by divalent iron activated peroxynitrite (PMS), and analyzed the changes in fluorescent protein composition and content of municipal sludge after peroxynitrite advanced oxidation treatment and its effect on improving sludge dewatering performance by three-dimensional fluorescence spectroscopy (EEM) and parallel factor analysis (PARAFAC). Tryptophan-like protein was an important factor affecting the sludge dewatering performance, and reducing tryptophan-like protein content effectively improved the sludge dewatering performance. From the perspective of structure, the content of tryptophan?like protein in extracellular polymeric substance (EPS) of municipal sludge gradually decreased from the inner layer of tightly bounded EPS (TB?EPS) to the outer layer of soluble EPS (S-EPS), in which TB-EPS was the microbial protective layer that determined the sludge dewatering performance. However, the excess sludge from wastewater treatment processes represented by oxidation ditch was more difficult to dewater than the excess sludge from AAO and MSBR, which was due to the protection of spores or other dormant bodies formed by microorganisms in the oxidation ditch process during the endogenous respiratory period. Therefore, the conditioning and dewatering of sludge from oxidation ditch needs to be realized by other more targeted conditioning technologies.

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更新日期/Last Update: 2023-08-01