Nitrogen removal from digested piggery wastewater using fermented superphosphate within the pretreatment stage and an MAP fertilizer pot test

2019 ◽  
Vol 212 ◽  
pp. 372-380 ◽  
Author(s):  
Zifeng Luo ◽  
Dehan Wang ◽  
Jie Yang ◽  
Honghui Huang ◽  
Guanyu Su
Keyword(s):  
Nitrogen Removal ◽  
Piggery Wastewater ◽  
Digested Piggery Wastewater

Performance of autotrophic nitrogen removal from digested piggery wastewater

2017 ◽  
Vol 241 ◽  
pp. 465-472 ◽  
Author(s):  
Shuang Wang ◽  
Lan Wang ◽  
Liangwei Deng ◽  
Dan Zheng ◽  
Yunhong Zhang ◽  
...  
Keyword(s):  
Nitrogen Removal ◽  
Piggery Wastewater ◽  
Digested Piggery Wastewater ◽  
Autotrophic Nitrogen Removal

Experimental validation of a simulation and design model for nitrogen removal in sequencing batch reactors

1997 ◽  
Vol 35 (1) ◽  
pp. 113-120 ◽  
Author(s):  
G. Andreottola ◽  
G. Bortone ◽  
A. Tilche
Keyword(s):  
Nitrogen Removal ◽  
Phase Distribution ◽  
Nitrogen Concentration ◽  
Design Procedure ◽  
Aerobic Condition ◽  
Batch Reactors ◽  
Sequencing Batch Reactors ◽  
Daily Cycle ◽  
Piggery Wastewater ◽  
Biological Nitrogen

The development and the sensitivity analysis of a dynamic SBR simulation model for biological nitrogen removal, based on the Activated Sludge Model N. 1, are presented. An experimental study for the calibration and validation of the model was carried out using a bench scale SBR. Piggery wastewater was used as feed. The operating daily cycle of the SBR reactor included three sub-cycles of 7.5 hours each, each one alternating anoxic and aerobic condition, while settling phase was carried out at the end of the three sub-cycles. A first enhancement of model N. 1 was performed splitting nitrification into the two sub-processes of nitriation and nitratation. A second enhancement of the model was obtained with the introduction of a switch function of nitratation kinetics. An algorithm for optimization of the cycle length and phase distribution in order to minimize effluent nitrogen concentration was developed. A design procedure of SBR systems is also described.

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