固体缓释碳源辅助低碳氮比污水脱氮技术研究

Research Progress in Low C/N Wastewater Denitrification by Using Solid Sustained Release Carbon Materials

碳源是低碳氮比污水反硝化过程的重要限制因素,优选碳源及反应器在污水厂的升级改造中非常重要。固体材料既能缓释碳源,又能利于微生物的附着,在反硝化滤池中还能起到滤料作用,合适的反应器以及运行参数控制在满足出水要求的同时又能降低处理成本。目前,对于深度脱氮工艺的研究主要集中在固体碳源、影响因素、反应器三个方面。

The carbon source is an important limiting factor to low C/N wastewater denitriflcation, so selecting preferable carbon source and reactor is very important in wastewater treatment plant upgrade. Solid carbon source can slowly release carbon, and it is conducive to microbial attachment and can play the role of filter material in the denitrification filters. Suitable reactor and controlling the operating parameters can meet the water requirements and reduce processing costs. Currently, depth research of the nitrogen removal process mainly includes three aspects of solid carbon source, influencing factors and reactor.