Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Optimization of a nitrogen‐removing biological wastewater treatment plant using on‐line measurements
ABSTRACT: The installation of continuous on‐line measurements of ammonium and nitrate in the aeration tanks of a nitrogen removing activated sludge plant has reduced the nitrate amount in the effluent by 60%. This corresponds to a drop in the average total nitrogen concentration in the effluent from 7.8 mg/L to 5.1 mg/L. The operation of the nitrogen removal process and thereby the effluent concentrations has become more stable. By combining operational changes in the biosorption with on‐line control of the process, it is possible to maintain full and stable denitrification at a BOD/N ratio of 3 to 4 without the use of any external carbon source, despite great variations in the loading of the plant. Monitoring of the microscopic characteristics of the sludge can be closely correlated with macroscopic characteristics such as sludge volume index.
Optimization of a nitrogen‐removing biological wastewater treatment plant using on‐line measurements
ABSTRACT: The installation of continuous on‐line measurements of ammonium and nitrate in the aeration tanks of a nitrogen removing activated sludge plant has reduced the nitrate amount in the effluent by 60%. This corresponds to a drop in the average total nitrogen concentration in the effluent from 7.8 mg/L to 5.1 mg/L. The operation of the nitrogen removal process and thereby the effluent concentrations has become more stable. By combining operational changes in the biosorption with on‐line control of the process, it is possible to maintain full and stable denitrification at a BOD/N ratio of 3 to 4 without the use of any external carbon source, despite great variations in the loading of the plant. Monitoring of the microscopic characteristics of the sludge can be closely correlated with macroscopic characteristics such as sludge volume index.
Optimization of a nitrogen‐removing biological wastewater treatment plant using on‐line measurements
Sorensen, John (Autor:in) / Thornberg, Dines E. (Autor:in) / Nielsen, Marinus K. (Autor:in)
Water Environment Research ; 66 ; 236-242
01.05.1994
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Municipal Wastewater Treatment: Biological Nitrogen Control
| British Library Conference Proceedings | 1997
Biological Treatment of Dairy Plant Wastewater
| Online Contents | 1996
Wastewater Treatment: Removing the Risk
| Online Contents | 1997