污泥厌氧消化前处理技术研究现状及展望

Pretreatment methods of anaerobic digestion of sludge from wastewater treatment plant

污泥厌氧消化产生的沼气用于发电是一种具有广阔应用前景的垃圾资源化方法。厌氧消化前采用不同的预处理方法能促进污泥内微生物细胞的分解、加速胞内物质的释放、加快污泥的水解速率,这是增强污泥厌氧消化性能的关键。综述了当前研究和应用较多的物理法、化学法和生物法等污泥预处理技术,分析了各种方法的原理、特点、处理效果及应用前景。

Anaerobic digestion of sludge is a resource utilization method,which has broad application prospect. Different kinds of pretreatment method of anaerobic digestion is an important sludge stabilization technology, which breaks cells, releases organic substance and improve sludge hydrolysis velocity, and is the key to enhance sludge anaerobic digestion ability. Some physical, chemical and biological methods used currently to pr-treat sludge were reviewed. The basic principle, characteristic, treatment efficiency and future application of these methods were discussed as well.