scholarly journals Nitrification and Denitrification of Land-based Fish Farm Wastewater using an Anaerobic-Aerobic Upflow Biological Aerated Filter

2014 ◽  
Vol 47 (5) ◽  
pp. 622-629
Author(s):  
Noh-Back Park ◽  
Hyun-Young Lee ◽  
Seong-Min Kim ◽  
Jun-Sang Lee
Keyword(s):  
Fish Farm ◽  
Biological Aerated Filter ◽  
Nitrification And Denitrification ◽  
Aerated Filter ◽  
Farm Wastewater

Simultaneous nitrification and denitrification in biofilters with real time aeration control

2001 ◽  
Vol 43 (1) ◽  
pp. 269-276 ◽  
Author(s):  
N. Puznava ◽  
M. Payraudeau ◽  
D. Thornberg
Keyword(s):  
Real Time ◽  
Nitrogen Removal ◽  
Simultaneous Nitrification And Denitrification ◽  
Biological Aerated Filter ◽  
Diffusion Effect ◽  
Different Depths ◽  
Nitrification And Denitrification ◽  
Aerated Filter ◽  
Denitrification Process ◽  
Aeration Control

The aim of this article is to present a new biological aerated filter (BAF) for nitrogen removal based on simultaneous nitrification and denitrification. Contrary to the systems which integrate both an aerated and a non-aerated zone to allow complete nitrogen removal in one compact or two different units (pre-denitrification and nitrification), this upflow BAF system is based on the principle of simultaneous nitrification and denitrification since the filter is completely aerated. The denitrification process is possible due to the diffusion effect which dominates biofilm processes. The real time aeration control allows us to maintain a low dissolved oxygen value (0.5 to 3 mg O2/l). In this case, the biofilm will not be fully (or less) penetrated with oxygen and denitrification will be carried out in a large part of the biofilm. Therefore, nitrification and denitrification is running simultaneously in different depths of the biofilm. By using 50% less air this BAF gave the same results (less than 20mg TN/l) on pilot plant as a classical nitrification and denitrification BAF (Toettrup et al., 1994). Less recirculation was necessary to achieve the same denitrification.

Textile Wastewater Treatment Using Combined Process of Biological Wriggle Bed and Ozone Biological Aerated Filter

2012 ◽  
Vol 441 ◽  
pp. 589-592
Author(s):  
Zhi Min Fu ◽  
Yu Gao Zhang ◽  
Xiao Jun Wang
Keyword(s):  
Wastewater Treatment ◽  
Removal Efficiency ◽  
Textile Wastewater ◽  
Cod Removal ◽  
Biological Aerated Filter ◽  
Combined Process ◽  
Cod Removal Efficiency ◽  
Aerated Filter ◽  
Textile Wastewater Treatment

A combined process of biological wriggle bed and ozone biological aerated filter was utilized to treat textile wastewater. Results showed that COD removal efficiency was almost 90.4%. The average effluent COD was 85.87 mg/L. The effluent colority was 64-32 times. This study indicated that the combined process is potentially useful for treating textile wastewater.

Ammonia variations in phytotreatment ponds of land-based fish farm wastewater

Aquaculture ◽  
2003 ◽  
Vol 219 (1-4) ◽  
pp. 485-494 ◽  
Author(s):  
Salvatore Porrello ◽  
Giuseppe Ferrari ◽  
Mauro Lenzi ◽  
Emma Persia
Keyword(s):  
Fish Farm ◽  
Farm Wastewater
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