摘要
短程反硝化具有稳定的亚硝态氮积累能力,这为厌氧氨氧化的应用带来曙光。相对于分段式短程反硝化-厌氧氨氧化(PD-A),一体式PD-A布局更紧凑、操作更方便。首先介绍了短程反硝化与厌氧氨氧化的脱氮机理;接着从悬浮污泥、生物膜、颗粒污泥、细胞固定系统下阐述一体式PD-A的启动方式和工艺形式,发现一体式PD-A中的空间结构不仅利于功能菌的保留还有利于衍生工艺的开发;随后从碳源、进水基质、pH等方面总结PD-A的影响因素,并介绍强化PD-A的方法;最后概括PD-A及其衍生工艺的应用进展、并探讨发展方向,发现一体式PD-A在城市污水脱氮处理以及资源化利用方面具有广阔的前景,符合我国“双碳”目标发展要求。
Partial denitrification has a stable nitrite accumulation capacity,which holds the dawn to the application of anaerobic ammonia oxidation.Compared to the segmented partial denitrification-anaerobic ammonia oxidation(PD-A),the integrated PD-A is more compact and convenient in operation.In this paper,the nitrogen removal mechanism of partial denitrification and anaerobic ammonia oxidation was introduced initially.Then,the starting method and process form of integrated PD-A were elaborated from the suspended sludge,biofilm,granular sludge and cell immobilization system.It was found that the spatial structure of the integrated PD-A was not only conducive to the retention of functional bacteria but also beneficial to the development of derivative process.Subsequently,the factors that have effects on PD-A were summarized from the aspects of carbon source,influent water matrix,and pH,etc.The methods to enhance PD-A were introduced.Finally,the application progress of PD-A and its derivative processes was summarized,and the development direction was discussed.It was found that integrated PD-A had broad prospects in nitrogen removal and resource utilization of urban sewage,which met the development requirements of China's “dual carbon”.
作者
陈浩
杨玉婷
刘文如
沈耀良
CHEN Hao;YANG Yuting;LIU Wenru;SHEN Yaoliang(School of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou 215009,China;National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology,Suzhou 215009,China;Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment,Suzhou 215009,China)
出处
《工业水处理》
CAS
CSCD
北大核心
2024年第5期14-23,共10页
Industrial Water Treatment
基金
国家自然科学基金项目(51808367)
生物膜法水质净化及利用技术教育部工程研究中心开放基金资助项目(BWPU2021KF03)。
关键词
短程反硝化
厌氧氨氧化
一体式
工艺应用
partial denitrification
anaerobic ammonia oxidation
integrated
process application
