scholarly journals Comparative Analysis of the Effectiveness of Regulation of Aeration Depending on the Quantitative Characteristics of Treated Sewage Water

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Myroslav Malovanyy ◽  
Vira Shandrovych ◽  
Andriy Malovanyy ◽  
Igor Polyuzhyn
Keyword(s):  
Comparative Analysis ◽  
Dissolved Oxygen ◽  
Ammonium Nitrogen ◽  
Sewage Water ◽  
Initial Concentration ◽  
Treated Sewage ◽  
Quantitative Characteristics ◽  
Aeration Process ◽  
Effectiveness Of Regulation

Monitoring of work of the aeration tanks of operating town treatment plants is done. Based on the obtained results a conclusion has been drawn that sewage water is improperly treated from ammonium nitrogen. The velocity of the aeration process, depending on the concentration of dissolved oxygen and ammonium nitrogen, is investigated. The obtained investigation data became the basis for modeling the aeration process in industrial conditions depending on the required initial concentration of ammonium nitrogen.

Minerals in Soils and Forages Irrigated with Secondary Treated Sewage Water in Sebele, Botswana

2004 ◽  
Vol 5 (1) ◽  
pp. 155-161 ◽  
Author(s):  
A.A. Aganga ◽  
S. Machacha . ◽  
B. Sebolai . ◽  
T. Thema . ◽  
B.B. Marotsi .
Keyword(s):  
Sewage Water ◽  
Treated Sewage

Proportional Control of Dissolved Oxygen Concentration of Sewage Water Treatment in Oil Field

2013 ◽  
Vol 421 ◽  
pp. 798-802
Author(s):  
Chao Xie
Keyword(s):  
Water Treatment ◽  
Dissolved Oxygen ◽  
Activated Sludge ◽  
Design Procedure ◽  
Sewage Water ◽  
Oil Field ◽  
Dissolved Oxygen Concentration ◽  
Proportional Control ◽  
Simulation Results ◽  
Sewage Water Treatment

Activated sludge method is mainly used to sewage water treatment of water injection system in oil field, dissolved oxygen of sewage pond plays a important role in the sewage water treatment process. The proportional control algorithm of dissolved oxygen concentration is developed based on a first time delay model, and the parameter values of the controller is determined by using stability margins design approach. Simulation results are provided to illustrate the design procedure and the effectiveness of the proposed methods. When applying to the wastewater treatment system based on activated sludge, this method can achieve a satisfied treating performance with robustness. Simulation results are given to demonstrate the design procedure and the effectiveness of the proposed methods.

scholarly journals The effect of pulverising aeration on changes in the oxygen and nitrogen concentrations in water of Lake Starzyc

2015 ◽  
Vol 25 (1) ◽  
pp. 31-36 ◽  
Author(s):  
Piotr Wesołowski ◽  
Adam Brysiewicz
Keyword(s):  
Dissolved Oxygen ◽  
Nitrate Nitrogen ◽  
Ecological Status ◽  
Ammonium Nitrogen ◽  
Abiotic Conditions ◽  
The Third ◽  
Long Period ◽  
Nitrogen Concentrations ◽  
Bottom Waters ◽  
Restoration Measures

Abstract Due to poor ecological status of Lake Starzyc, lake restoration measures were undertaken in 2003 to improve aerobic conditions of near-bottom waters and to decrease phosphorus concentrations. To do this, a wind-driven pulverising aerator was installed in the lake. The aim of this study was to analyse variability of oxygen and nitrogen concentrations in lake water near the aerator in the third year of its operation and later on in the three-year-long period of the years 2008–2010. It was found that concentrations of ammonium-nitrogen, nitrate-nitrogen and dissolved oxygen near the aerator did not differ from those in sites 4 and 5, which evidenced similar abiotic conditions in analysed waters. Higher concentrations of dissolved oxygen and lower concentrations of nitrate-nitrogen were found in the years 2008–2010 than in 2005.

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