Banca de QUALIFICAÇÃO: MAIARA BARBOSA FERREIRA

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
DISCENTE : MAIARA BARBOSA FERREIRA
DATA : 21/10/2019
HORA: 09:00
LOCAL: Auditório do NUPPRAR
TÍTULO:

Treatment of hazardous effluents by using electrochemical technologies combined with other advanced oxidation processes

PALAVRAS-CHAVES:

anodic oxidation, soil remediation, photolysis, ZVI, biodegradability

PÁGINAS: 100
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Química
SUBÁREA: Físico-Química
ESPECIALIDADE: Eletroquímica
RESUMO:

The treatment of hazardous polluted liquid waste is a topic of great interest worldwide, as environmental pollution issues are promulgated annually, especially in hazardous waste, air pollution and wastewater. Wastewater can be result from overuse of pesticides and fertilizers on farmland, infiltration of livestock dams, accidental discharge of harmful pollutants, industrial wastewater, landfill leachate, oil spill and oil rigging, improper waste disposal and stocks, among others. Faced with this problem, many studies have appeared that aim to reduce or eliminate the damage caused by these contaminants. One of the alternatives more widely used in recent years is the combination of existing technologies in order to enhance the efficiency in the decontamination processes or to propose a pre-treatment prior to the use of conventional alternatives, including the biological treatments. In this work, we initially propose the study of the use of a electrochemical technology coupled with soil and wastewater remediation. The use of anodic oxidation combined with advanced oxidative processes has also been investigated using nine AOP-ZVI combinations to determine the best combination to be used as a pre-treatment for biological degradation processes of organochlorine pollutants. This was achived assesing the changes in short-term respiratory behavior, toxicity and biodegradability. Clopyralid has been used as a chlorinated hydrocarbon model. Three AOPs were studied: AO-MMO, AO-BDD and photolysis in three different modes: no ZVI addition, ZVI dehalogenation as pretreatment and ZVI dehalogenation concurrent with AOP treatment. The results showed that technologies can successfully treat Clopyralid-polluted residues and the observed effects are significantly improved by de-halogenating the residues with ZVI prior to treatment or simultaneously with AOP treatment.

MEMBROS DA BANCA:
Presidente - 1645110 - CARLOS ALBERTO MARTINEZ HUITLE
Interno - 348475 - DJALMA RIBEIRO DA SILVA
Externa à Instituição - DANYELLE MEDEIROS DE ARAUJO - IFRN
Externo à Instituição - MARCO ANTONIO QUIROZ ALFARO - udlap