Research Progress on Solid Carbon Source for Advanced Nitrogen Removal in Sewage Treatment.[J].China Water & Wastewater,2024,40(8):34-39.
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第8期
Page:
34-39
Column:
Date of publication:
2024-04-17
- Keywords:
- solid carbon source; solid?phase denitrification; biological nitrogen removal; advanced wastewater treatment
- Abstract:
- In order to control serious water eutrophication and meet increasingly stringent sewage discharge standards, it is need to add external carbon source when using biological denitrification technology for advanced nitrogen removal in sewage treatment plants. Common external carbon source can be divided into liquid carbon source and solid carbon source. Solid carbon source has attracted widespread attention at home and abroad in recent years. This paper systematically summarizes the material types of solid carbon source, expounds the relevant principles of carbon release and nitrogen removal in the solid-phase denitrification system, summarizes the current application research progress of solid carbon source in advanced sewage treatment, and puts forward the prospect for future research on solid carbon source based on the above content. Compared with the liquid carbon source, the solid carbon source is not only a continuous electron donor for the denitrification, but also a carrier for the growth of the biofilm. The process system is simple and easy to control, with stable denitrification efficiency. The solid carbon source provides a new idea for the development of advanced sewage treatment technology.
Last Update:
2024-04-17