Banca de DEFESA: GABRIELA MENTA ALVIM

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : GABRIELA MENTA ALVIM
DATE: 18/10/2021
TIME: 09:00
LOCAL: plataforma teams
TITLE:
KEY WORDS:

Keywords: Pharmaceutical effluent; PRECEND; Anaerobic treatment; Environmental risk assessment; Cost analysis

PAGES: 90
BIG AREA: Ciências Exatas e da Terra
AREA: Química
SUBÁREA: Química Analítica
SPECIALTY: Análise de Traços e Química Ambiental
SUMMARY:

Rapid population growth and global industrialization have resulted in the progressive generation of industrial effluents with significant concentrations of emerging contaminants or micropollutants such as drugs, personal care products, hormones, and surfactants. These pollutants are considered persistent and difficult to degrade in Wastewater Treatment Plants (WWTP), reaching the aquatic environments after treatment and being found in freshwater. The pharmaceutical wastewaters, in addition to persistence, can cause toxicity to aquatic organisms and inhibit biological activity in wastewater treatment reactors. The research aims to characterize real pharmaceutical wastewater, assessing the efficiency of its current treatment and, if necessary, propose improvements to obtain cost reduction and compliance with the disposal rules. An environmental risk assessment will be carried out to assess the effluent toxicity. The industrial effluent characterization was carried out by compiling historical data of quality parameters contained in laboratory reports of 2019. Historical production data were used to understand the type and quantities of drugs manufactured, the active ingredients and excipients used and, thus, infer about the wastewater's toxicity and biodegradability. The greatest consumption of industrial input was in July and August 2019, with the most consumed principles: anhydrous glucose (33.9%), paracetamol (20.6%), dipyrone (13.9%), benzoate benzyl (8.2%), sodium chloride (6.6%), sodium citrate (4.9%) and potassium chloride (2.6%). The treated effluent at the company's WWTP presented low compliance for COD and pH, being characterized as slightly acidic and, therefore, it was outside the ideal range for the anaerobic treatment used. The effluent temperature, despite following the established limit, was also below the ideal range for the applied treatment. It was possible to infer that the anaerobic reactor used is operating in an acidogenic phase, presenting reduced efficiency when compared to the methanogenic phase, which would be preferable. The treatment has not been effective when presenting COD values higher than the established limit, in addition to the production of bad smell in the area. Starting errors and reactor conditions seem to imply unwanted costs and reduced efficiency.

 

BANKING MEMBERS:
Interno - ILDEFONSO BINATTI
Externa ao Programa - LUZIA SERGINA DE FRANCA NETA
Externa à Instituição - MIRIAM CRISTINA SANTOS AMARAL MORAVIA - UFMG
Interno - PATTERSON PATRICIO DE SOUZA