典型生物酶调理强化污泥脱水及滤液碳源回收研究

储昭瑞; 左嘉宁; 许开成; 郭清嵩; 赫俊国

doi:10.13205/j.hjgc.202607024

典型生物酶调理强化污泥脱水及滤液碳源回收研究

doi: 10.13205/j.hjgc.202607024

1. 广州大学土木与交通工程学院, 广州 510006;
2. 广东新之源环境科技有限公司, 广东佛山 528000

基金项目:

污泥减量化控制技术策略研究项目合同（2024418）

详细信息

作者简介:
储昭瑞，男，副教授，主要研究方向为剩余污泥处理处置及资源化。zrchu@gzhu.edu.cn

通讯作者:
赫俊国，男，教授，主要研究方向为剩余污泥处理处置及资源化。junguohe@263.net

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出版历程
- 收稿日期: 2026-01-19
- 网络出版日期: 2026-09-01

Research on enhancing sludge dewatering and filtrate carbon source recovery through typical bioenzymatic conditioning

1. School of Civil Engineering and Transportation, Guangzhou University, Guangzhou 510006, China;
2. Guangdong New Source Environmental Technology Co., Ltd., Foshan 528000, China

摘要

摘要: 研究以佛山市某净水厂的剩余污泥为对象，系统探讨了溶菌酶、淀粉酶和蛋白酶单一及复合调理对污泥脱水性能与滤液碳源回收的影响。结果表明，溶菌酶对污泥脱水性能具有显著提升作用，可同步降低污泥比阻（SRF）、毛细吸水时间（CST）和泥饼含水率（W_c），而淀粉酶和蛋白酶虽能降低W_c，却导致SRF和CST升高，污泥过滤性能恶化。复合酶调理中，溶菌酶与蛋白酶协同作用效果更优，异步投加策略（先蛋白酶/淀粉酶后溶菌酶）在降低W_c方面表现最佳，同步投加策略则在改善SRF和CST方面更有效。机理分析表明，3种酶调理均会造成污泥粒径减小，溶菌酶主要通过靶向溶胞破壁，释放胞内物质，降低黏度并增强污泥疏水性；而淀粉酶和蛋白酶则主要破坏EPS结构，导致大量蛋白和多糖释放至S-EPS，增加黏度和亲水性。3种酶调理均能有效促进碳源释放，提高滤液SCOD，并将难降解的腐殖酸类有机物转化为易生物利用的色氨酸类和酪氨酸类物质。
- 污泥脱水 /
- 污泥调理 /
- 生物酶 /
- 复合酶 /
- 胞外聚合物
Abstract: This study systematically investigated the effects of single and composite conditioning with lysozyme， amylase， and protease on sludge dewatering performance and carbon source recovery in filtrate from the residual sludge of a water treatment plant in Foshan City. The results indicated that lysozyme significantly improved sludge dewatering performance by reducing specific resistance of filtration （SRF）， capillary suction time （CST）， and the water content of the filtered sludge cake （Wc）. While amylase and protease decreased Wc， and elevated SRF and CST，deteriorated sludge filtration properties. Among the combined enzyme treatments， lysozyme and protease exhibited synergistic effects. The asynchronous addition strategy （protease/amylase followed by lysozyme） demonstrated the best performance in reducing Wc， while simultaneous addition was more effective in improving SRF and CST. Mechanistic analysis revealed that all three enzymes reduced sludge particle size. Lysozyme primarily targeted cell lysis and wall disruption， releasing intracellular substances， reducing viscosity， and enhancing sludge hydrophobicity. Meanwhile， amylase and protease mainly disrupted the structure of extracellular polymeric substances （EPS）， leading to the release of large amounts of proteins and polysaccharides into the slime （S）-EPS， thereby increasing viscosity and hydrophilicity. Furthermore， all three enzymes effectively promoted carbon source release， increased the soluble chemical oxygen demand （SCOD） of the filtrate， and transformed recalcitrant humic acid-like organic matters into readily bioavailable tryptophan-like and tyrosine-like substances.
- sludge dewatering /
- sludge conditioning /
- enzyme /
- composite enzyme /
- extracellular polymeric substances

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参考文献(19)

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