Banca de QUALIFICAÇÃO: SANSARA FÉLIX PEREIRA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : SANSARA FÉLIX PEREIRA
DATE: 05/03/2021
TIME: 10:00
LOCAL: Remoto via Google meet
TITLE:

EFFECT OF EXCESSED AEROBIC SLUDGE DIGESTION IN UASB REACTOR

 

KEY WORDS:

Domestic sewage; UASB reactor; activated sludge; aerobic sludge stabiliaztion.

 

PAGES: 15
BIG AREA: Engenharias
AREA: Engenharia Sanitária
SUBÁREA: Tratamento de Águas de Abastecimento e Residuárias
SUMMARY:

Suitable treatment of wastewater is essential to ensure the protection of public health and water resources, since the lack of treatment of sewage can contribute to the proliferation of various diseases, as well as to the deterioration of the quality of water bodies. Among the existing configurations for the biological treatment of domestic and industrial effluents, the association of UASB reactors (Upflow Anaerobic Sludge Blanket) to activated sludge systems has been widely used, mainly in hot climate regions; as it provides the reduction of the organic load affluent to the activated sludge system, resulting in savings in its implementation and operation. In addition to the anaerobic sewage treatment, the UASB reactor can also be used to stabilize the excess sludge produced in the aerobic reactor. However, some studies indicate that sewage treatment plants with this configuration have shown low efficiency in removing solids. Thus, the objective of this work is to evaluate the effect of the stabilization of excess aerobic sludge in the UASB reactor on the performance of the treatment system. Thus, an experimental research will be conducted at a pilot-scale sewage treatment plant, consisting of a UASB reactor followed by a conventional activated sludge system, in operational conditions with and without aerobic sludge return to the anaerobic reactor. To assess the influence of the return of aerobic sludge on the treatment system, physical-chemical analyzes will be carried out to monitor organic matter (COD), nutrients (ammoniacal nitrogen and fractions) and solids. In addition, the physical and biological characteristics of the sludge will also be analyzed, through the settleability and kinetic constants of the aerobic sludge. At the end of the research, it is intended to identify the problems associated with the use of this anaerobic-aerobic system, as well as to present suitable alternatives for monitoring sewage treatment plants with this conception.

BANKING MEMBERS:
Presidente - 3057847 - SILVÂNIA LUCAS DOS SANTOS
Interna - 3919045 - JULIANA DELGADO TINOCO
Externo à Instituição - ADRIANUS CORNELIUS VAN HAANDEL - UFCG