净水技术2024，Vol.43Issue(4)：16-27,12.DOI:10.15890/j.cnki.jsjs.2024.04.003
污水生物脱氮外加碳源的开发与应用
Development and Application of External Carbon Sources for Biological Denitrification in Wastewater
李英特 1刘世婷 2陈洪斌1
作者信息
- 1. 同济大学环境科学与工程学院,上海 200092
- 2. 四川省环保产业集团有限公司,四川成都 610046
- 折叠
摘要
Abstract
External carbon sources play an important role in the process of biological denitrification of wastewater.According to the mechanism of action and the variability of the utilization rate of external carbon sources involved in biological denitrification reaction,they can be divided into fast-acting carbon source,slow-release carbon source,and delayed-effect carbon source,the latter two of which are collectively called composite carbon sources.This review firstly summarizes the effects of different types of fast-acting carbon source on denitrification performance and sludge properties.The second part describes the slow-release carbon source represented by natural plant substrate leachate and biodegradable polymers.The third part describes the delayed-effect carbon source represented by kitchen bio-waste fermentation broth,sludge hydrolysis broth in wastewater treatment plant and high concentration organic wastewater fermentation broth.Based on the purposes of reducing denitrification cost and waste resource utilization,the preparation process,biological denitrification performance and feasibility of practical application of these two types of composite carbon sources are outlined,and potential paths for their quality and performance improvement are proposed.Finally,it is pointed out that the establishment of a comprehensive performance evaluation system for new composite carbon sources is a prerequisite and guarantee for the development and utilization of new external carbon sources for biological denitrification.关键词
污水处理/生物脱氮/外加碳源/厌氧发酵/缓释碳源/迟效碳源Key words
wastewater treatment/biological denitrification/external carbon source/anaerobic fermentation/slow-release carbon source/delayed-effect carbon source分类
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李英特,刘世婷,陈洪斌..污水生物脱氮外加碳源的开发与应用[J].净水技术,2024,43(4):16-27,12.
