Influence of closed loop control on microbial diversity in a nitrification process

被引：11

作者：

Bougard, D. ^{[1
]}

Bernet, N. ^{[1
]}

Dabert, P. ^{[1
]}

Delgenes, J. P. ^{[1
]}

Steyer, J. P. ^{[1
]}

机构：

[1] INRA, LBE, F-11100 Narbonne, France

来源：

WATER SCIENCE AND TECHNOLOGY | 2006年 / 53卷 / 4-5期

关键词：

biofilm; closed-loop control; fuzzy logic; microbial diversity; nitrification; nitrite;

D O I：

10.2166/wst.2006.113

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper compares two control strategies for a nitrification process. The objective is to achieve partial nitrification and thus to accumulate nitrite instead of nitrate. To this end, change in temperature setpoint and active control of oxygen and ammonia concentrations are evaluated in the long term. Evaluation is made on the control performances that are obtained, but also - and more importantly - on the microbial diversity. In particular, it is shown that the combined oxygen and ammonia control strategy is more appropriate since shift in the temperature setpoint strongly affects the composition of the microbial ecosystem present in the reactor whereas active control of oxygen and ammonia does not.

引用

页码：85 / 93

页数：9

共 18 条

[11]

Driankov D., 1993, INTRO FUZZY CONTROL

[12]

Garrido JM, 1997, BIOTECHNOL BIOENG, V53, P168

[13] Molecular microbial diversity of an anaerobic digestor as determined by small-subunit rDNA sequence analysis [J].