Banca de DEFESA: LUCIANA BEZERRA SOARES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : LUCIANA BEZERRA SOARES
DATE: 02/08/2022
TIME: 10:00
LOCAL: Pos Graduação Engenharia Civil
TITLE:

Methodology for Simulation of Start-Up Period of SBR System with Granular Sludge Treating Diluted Domestic Wastewater Using the Activated Sludge Model 3H (ASM3H)

KEY WORDS:

Modeling; ASM3; Aerobic granular sludge; Sequential batch reactor

PAGES: 38
BIG AREA: Engenharias
AREA: Engenharia Civil
SUMMARY:

The objective of this study was to evaluate the simulation performance of the Activated Sludge Model 3 (ASM3), associated with a mathematical model of biofilm, to describe the granulation process and the effiency in terms of removal of organic matter and nitrogen compounds in a sequential batch reactor (SBR) with aerobic granular sludge (AGL) treating diluted urban wasterwater, using the AQUASIM 2.0® program. The pilot reactor was installed in the experimental area of the Environmental Sanitation Laboratory of the Federal University of Pernambuco (LSA-UFPE), located at the Mangueira wastewater treatment plant (WWTP), and was operated and monitored for 138 days. The characterization of the influent sewage from the Mangueira WWTP was carried out based on the procedure proposed by the German resolution DWA-A 131 and the fractionation parameters were obtained through linear programming in Excel® program. Due to limitations of the pre-defined models of AQUASIM 2.0®, it was necessary to adopt a fixed number of granules during the entire simulation. Thus, to simulate the granulation process, the thickness of the granules was controlled in order to guarantee that the total granular mass obtained experimentally was conserved during the simulation. Although the model has demonstrated a satisfactory predictability of the parameters Chemical Oxygen Demand (COD) and ammoniacal nitrogen, the data from the simulations obtained from the denitrification process did not respond with such reliability. This result may be a consequence of the homogeneity of the simulated biomass, since all granules had the same diameter, which may have disfavored denitrification. More studies should be done to investigate the feasibility of the adopted strategy.

BANKING MEMBERS:
Presidente - 3133998 - BRUNA SCANDOLARA MAGNUS
Externo à Instituição - TIAGO ROGERIO VITOR AKABOCI
Externo à Instituição - WAMBERTO RAIMUNDO DA SILVA JÚNIOR - IFPB