Banca de QUALIFICAÇÃO: JONUHEY FERREIRA DA COSTA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : JONUHEY FERREIRA DA COSTA
DATE: 18/12/2023
TIME: 08:00
LOCAL: on line
TITLE:

Treatment of textile effluent with reactive dye 195 by ionic flocculation using coconut surfactant and partially hydrolyzed polyacrylamide

KEY WORDS:

Surfactant, polymer, reactive red dye 195, flocculation.

PAGES: 60
BIG AREA: Engenharias
AREA: Engenharia Química
SUBÁREA: Tecnologia Química
SPECIALTY: Tratamentos e Aproveitamento de Rejeitos
SUMMARY:

The dumping of highly colored industrial effluents is a global environmental concern. The annual production of dyes reaches approximately 8x105 tons, 25% of which originates from the textile industry. Textile effluents contaminated with dyes can contain dangerous substances such as acids, teratogens, carcinogens and xenobiotics, posing a threat to human health and the environment. Azo dyes, when left untreated, can alter pH, reduce oxygen levels and harm photosynthesis in aquatic ecosystems. Several wastewater treatment methods have been developed, including coagulation/flocculation, which involves the use of coagulating and flocculant agents to facilitate the removal of dissolved and suspended solids. Partially hydrolyzed polyacrylamide (PHPA) is a water-soluble polymer with great potential as a coagulating agent. Saponified coconut oil (OCS) is a highly water-soluble anionic surfactant that easily aggregates into micelles when in the presence of available ions. This study aims to investigate the action of PHPA and OCS in the treatment of highly colored effluent through a coagulation/flocculation process. Flocculation tests will be carried out on synthetic effluents with Reactive Red 195 dye in different conditions and concentrations of OCS, with and without the addition of PHPA. The research seeks to determine the effectiveness of OCS in dye flocculation and also whether PHPA can simplify or optimize the treatment process.

COMMITTEE MEMBERS:
Presidente - 1308273 - EDUARDO LINS DE BARROS NETO
Externo ao Programa - 1566922 - LINDEMBERG DE JESUS NOGUEIRA DUARTE - UFRNExterno à Instituição - FRANCISCO WENDELL BEZERRA LOPES - UDS
Externo à Instituição - RICARDO PAULO FONSECA MELO - UFERSA