Experimental considerations on monitoring ORP, pH, conductivity and dissolved oxygen in nitrogen and phosphorus biological removal processes

被引:33
|
作者
Spagni, A
Buday, J
Ratini, P
Bortone, G
机构
[1] ENEA, Wastewater Treatment Technol Div, Bologna, Italy
[2] Slovak tech Univ Radinskeho, Fac Chem Technol, Bratislava, Slovakia
[3] SPES Scri, Fabriano, AN, Italy
关键词
conductivity; enhanced biological phosphate and nitrogen removal; monitoring activated sludge processes; oxidation reduction potential (ORP); pH; dissolved oxygen (DO);
D O I
10.2166/wst.2001.0683
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
An experimental study on monitoring Oxidation Reduction Potential (ORP), pH, Conductivity and Dissolved Oxygen (DO) in an Enhanced Biological Nutrient Removal process has been carried out. In the anaerobic phase, while ORP and conductivity were not reliable in monitoring simultaneously denitrification and P-release, pH showed the best performances. A significant relationship between P-released and pH variation was found. During the aerobic phase both ORP and pH were able to monitor successfully the nitrification, even though pH was much more reliable. pH can be also used for monitoring and control enhanced P-uptake. It has been concluded that, for a reliable and effective control of biological N and P removal processes a more sophisticated control system seems to be necessary.
引用
收藏
页码:197 / 204
页数:8
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