十六烷基三甲基溴化铵协同单宁酸提高污泥脱水性能研究

周璐; 张舜政; 唐钰涵; 刘长青

doi:10.13205/j.hjgc.202505013

十六烷基三甲基溴化铵协同单宁酸提高污泥脱水性能研究

doi: 10.13205/j.hjgc.202505013

青岛理工大学环境与市政工程学院, 山东青岛 266520

基金项目:

国家重点研发课题（2020YFD1100303）

详细信息

作者简介:
周璐，女，主要研究方向为污水处理与资源化利用。zhoulu20051313@163.com

通讯作者:
刘长青，教授，主要研究方向为污水处理与资源化利用、污水生物脱氮除磷及底泥资源化处置等。lcqlfyqut@126.com

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出版历程
- 收稿日期: 2024-11-25
- 录用日期: 2025-02-12
- 修回日期: 2025-01-07
- 网络出版日期: 2025-09-11

Synergistic effect of hexadecyltrimethylammonium bromide and tannic acid on improving sludge dewatering performance

School of Environmental and Municipal Engineering, Qingdao Technological University, Qingdao 266520, China

摘要

摘要: 污泥脱水可有效解决剩余活性污泥不断增加所带来的环境问题，将十六烷基三甲基溴化铵（CTAB）与单宁酸（TA）联合应用于污泥脱水。结果表明，0.49 mmol/g VSS CTAB联合0.16 mmol/g VSS的TA可显著改善污泥脱水效果，污泥含水率（W_c）从（95.13±0.41）%降至（79.18±0.33）%，污泥比阻（SRF）从（28.89±0.73）×10¹² m/kg降至（9.00±0.36）×10¹² m/kg。与原污泥相比，CTAB/TA处理组的紧密结合型胞外聚合物中蛋白质浓度减少30.20 mg/L。三维荧光光谱和红外光谱结果表明，CTAB/TA处理破坏EPS结构并且减少其官能团数量。扫描电镜SEM表征结果表明，污泥表面经CTAB/TA处理后出现大量排水孔。研究结果可对污泥脱水及其资源化利用提供参考。
- 污泥脱水 /
- 十六烷基三甲基溴化铵 /
- 单宁酸 /
- 胞外聚合物
Abstract: Sludge dewatering can effectively solve the environmental problems caused by the continuous increase of waste activated sludge. In this study， hexadecyltrimethylammonium bromide （CTAB） combined with tannic acid （TA） was innovatively applied for sludge dewatering. The results showed that the combination of CTAB （0.49 mmol/g VSS） and TA（0.16 mmol/g VSS） significantly improved the sludge dewatering performance. The sludge water content （W_c） decreased from （95.13±0.41）% to （79.18±0.33）%， and the sludge specific resistance to filtration （SRF） decreased from （28.89±0.73） × 10¹² m/kg to （9.00±0.36） × 10¹² m/kg. Compared with the raw sludge， the protein concentration in the tightly bound extracellular polymeric substances of the CTAB/TA treatment group decreased by 30.20 mg/L. The results of three-dimensional fluorescence spectroscopy and infrared spectroscopy indicated that CTAB/TA treatment destroyed the EPS structure and reduced its functional group count. The SEM images visually showed that a large number of drainage holes appeared on the surface of the sludge after CTAB/TA treatment. The results of this study provide a reference for sludge dewatering and resource utilization.
- sludge dewatering /
- hexadecyltrimethylammonium bromide /
- tannic acid /
- extracellular polymeric substances

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参考文献(13)

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