[有机碳源对CANON颗粒污泥工艺启动及运行的影响]

[Effect of Organic Carbon Source on Start-up and Operation of the CANON Granular Sludge Process].

作者信息

Li Dong, Wang Yan-Ju, Lü Yu-Feng, Cao Rui-Hua, Li Shuai, Zhang Jie

机构信息

Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China.

State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.

出版信息

Huan Jing Ke Xue. 2018 Mar 8;39(3):1294-1300. doi: 10.13227/j.hjkx.201707133.

DOI:10.13227/j.hjkx.201707133

PMID:29965476

Abstract

The effect of organic carbon on the start-up and operation of the CANON granular sludge process was investigated in two SBR reactors with different strategies:gradually increased organic carbon concentration (R1) and without organic carbon (R2). The results showed that adding 50 mg·L organic carbon accelerated the start-up of the CANON granular sludge process. R1 and R2 were started up in 23 d and 32 d, respectively. Moreover, the appropriate organic carbon enhanced the activity of AOB, AnAOB, and denitrification, increasing the ammonia removal rates and total nitrogen (TN) removal rates. The maximum ammonia removal rates and total nitrogen removal rates of R1 were 92% and 88%, respectively. The maximum ammonia removal rates and total nitrogen removal rates of R2 were 89% and 80%, respectively. Further tests showed that excessive organic carbon concentration decreased the activity of AOB and AnAOB and reduced the removal efficiency of ammonia and total nitrogen. Adding organic carbon promoted denitrification activity and increased nitrogen removal efficiency.

摘要

在两个采用不同策略的序批式反应器（SBR）中，研究了有机碳对CANON颗粒污泥工艺启动和运行的影响：逐渐增加有机碳浓度（R1）和不添加有机碳（R2）。结果表明，添加50 mg·L的有机碳加速了CANON颗粒污泥工艺的启动。R1和R2分别在23天和32天启动。此外，适量的有机碳增强了氨氧化细菌（AOB）、厌氧氨氧化细菌（AnAOB）的活性以及反硝化作用，提高了氨去除率和总氮（TN）去除率。R1的最大氨去除率和总氮去除率分别为92%和88%。R2的最大氨去除率和总氮去除率分别为89%和80%。进一步试验表明，过高的有机碳浓度会降低AOB和AnAOB的活性，并降低氨和总氮的去除效率。添加有机碳促进了反硝化活性并提高了脱氮效率。