污泥热水解/厌氧消化工程问题与对策研究

Study on Problems and Countermeasures of Thermal Hydrolysis and Anaerobic Digestion of Sludge

热水解强化了污泥厌氧消化的减量化、稳定化、无害化和资源化的处理目标,使该工艺多年来一直受到科学界和工业界的关注。在热水解/厌氧消化技术的发展和推广背景下,全面分析热水解/厌氧消化产业化面临的问题显得尤为重要。在污泥热水解/厌氧消化技术特征的基础上,结合实际工程案例和数据,对热水解/厌氧消化应用的工艺流程、存在的技术弊端、运行中应关注的问题进行了总结分析并提出建议。针对污泥热水解/厌氧消化技术优势和存在问题,在规划和设计上应综合考虑其与污水处理厂的布局相结合,且污泥热水解/厌氧消化在适用性上需具有灵活性,以体现其“污染治理”与“资源回收”的先进性。

Thermal hydrolysis strengthens the reduction,stabilization,harmlessness and resource utilization of anaerobic digestion of sludge,which has attracted the attention of science and industry for many years.With the development of the thermal hydrolysis and anaerobic digestion technology,it is particularly important to comprehensively analyze the problems existing in the industrialization of thermal hydrolysis and anaerobic digestion.Based on the technical characteristics of thermal hydrolysis and anaerobic digestion of sludge,combined with actual engineering cases and data,it summarizes and analyzes the process flow,technical drawbacks,and major operation problems existing in the application of thermal hydrolysis and anaerobic digestion,and proposes related recommendations.In order to take advantages of the thermal hydrolysis and anaerobic digestion technology and solve the existing problems,these factors and the layout of sewage treatment plants should be considered in planning and design.The thermal hydrolysis and anaerobic digestion technology of sludge needs to be flexible and applicable to reflect its advanced nature of“pollution control”and“resource recovery”.