Banca de DEFESA: TAMIL SAKTHI SILVA SELVAM

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : TAMIL SAKTHI SILVA SELVAM
DATE: 30/07/2020
TIME: 09:00
LOCAL: Sala de videoconferência
TITLE:

PERFORMANCE EVALUATION OF A SOLAR SELF-SUFFICIENT TWO-STAGE RBS-AS SYSTEM IN HOT CLIMATE REGIONS.

KEY WORDS:

Two-stage RBS. Activated sludge. Solar energy. Intermittent aeration. Hot climate.

PAGES: 36
BIG AREA: Engenharias
AREA: Engenharia Sanitária
SUMMARY:

A solar self-sufficient two-stage RBS-AS system submitted to long non-aerated periods (intermittent aeration) was studied to evaluate its performance in removing MO, nitrogen and phosphorus from domestic wastewater. The influence of aeration time on battery life was also evaluated. The system was subjected to daily inflows of 3, 4.5 and 6m³/day, and sludge ages of 32 ± 2 and 21 ± 2 days. The results indicated a high efficiency and stability of the system in the domestic wastewater treatment, reaching efficiencies of 93 ± 2%, 86 ± 4% and 93 ± 6%, in the removal of BOD, N and P, respectively. The biomass of the system is robust in relation to long-term operation with low DO concentration (without aeration for 80% of the batch time). However, the presence of a solids concentration limit (4.3 gSST / l), above which sedimentation is impaired, was evidenced. The durations of the aeration fases can be adjusted as a strategy to extend the life of the photovoltaic system's batteries.

BANKING MEMBERS:
Presidente - 1759924 - HELIO RODRIGUES DOS SANTOS
Interna - 3057847 - SILVÂNIA LUCAS DOS SANTOS
Externo à Instituição - UWE BERND MENZEL
Externo à Instituição - ANDRE LUIS CALADO ARAUJO