scholarly journals Source Apportionment of Air Pollution and Characteristics of Volatile Organic Compounds in a Municipal Wastewater Treatment Plant, North Taiwan

2017 ◽  
Vol 17 (11) ◽  
pp. 2878-2890 ◽  
Author(s):  
Dika Rahayu Widiana ◽  
Jung-Hsuan Tsai ◽  
Ya-Fen Wang ◽  
Sheng-Jie You ◽  
Hsi-Hsien Yang
Keyword(s):  
Air Pollution ◽  
Wastewater Treatment ◽  
Volatile Organic Compounds ◽  
Source Apportionment ◽  
Organic Compounds ◽  
Wastewater Treatment Plant ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Municipal Wastewater Treatment ◽  
Volatile Organic

Oxygen uptake at Parshall flumes

1998 ◽  
Vol 25 (4) ◽  
pp. 769-776 ◽  
Author(s):  
Richard G Zytner ◽  
Ziyad G Rahmé ◽  
Michael Labocha
Keyword(s):  
Wastewater Treatment ◽  
Volatile Organic Compounds ◽  
Oxygen Uptake ◽  
Organic Compounds ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Drop Height ◽  
Municipal Wastewater Treatment ◽  
Volatile Organic ◽  
Municipal Wastewater Treatment Plants

Parshall flumes are frequently used to measure flow at municipal wastewater treatment plants. With the flume causing turbulent flow, there is the potential for the emission of volatile organic compounds. To assess the extent of the emissions, laboratory and field measurements at Parshall flumes were completed, using oxygen as a surrogate. The laboratory measurements showed that the most important parameters influencing oxygen uptake were total energy loss and downstream water depth. Satisfactory results were also obtained using drop height. Field results from three municipal wastewater treatment plants showed that oxygen uptake correlated strongly with drop height and only slightly with discharge rate. This is beneficial as downstream water depth is difficult to measure in the field. Findings suggest that the use of an appropriate weir model would allow the estimation of oxygen uptake and volatile organic compounds stripping at Parshall flumes.Key words: oxygen uptake, volatile organic compounds, flumes, wastewater.

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