Banca de QUALIFICAÇÃO: YAGO NECO TEIXEIRA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : YAGO NECO TEIXEIRA
DATA : 07/03/2022
HORA: 09:30
LOCAL: Centro de Ciências Agrárias e Biodiversidade - Campus Crato
TÍTULO:

REMOVAL OF PHOSPHORUS FROM EFFLUENTS USING BIOADSORBENT MATERIAL ORIGINATED FROM VEGETABLE ASH AND ITS USE AS A SOURCE OF NUTRIENT FOR SOILS

PALAVRAS-CHAVES:

Phosphor; adsorption; Bioadsorbents; Eutrophication; ashes.

PÁGINAS: 55
GRANDE ÁREA: Outra
ÁREA: Ciências Ambientais
RESUMO:

The entry of pollutants into aquatic systems causes the degradation of rivers, lakes and coastal areas, reducing the availability of good quality water and increasing costs for later use. High concentrations of phosphorus in water are capable of disturbing the ecological balance, deteriorating water quality and raising issues from eutrophication to the intelligent and sustainable use of this resource in human activities. Therefore, the objective of this work was to study the adsorptive capacity of pequi peel ash and its efficiency in the removal of phosphorus from aqueous solutions, determine the ideal conditions for such a process, stipulate the parameters of inetics of the process. The pequi of the species Caryocar coriaceum Wittm is a fruit widely found in the region of Cariri, Ceará, Brazil. The pequi extractivism generates a large amount of waste, especially the fruit peels that do not have a specific destination. ogo, these peels were used as raw material for the production of the bioadsorbent used in this study. The pequi bark ash was produced at 5000C in a oxidative atmosphere. Analysis by x-ray fluorescence and energy dispersive spectroscopy confirmed the adsorption of phosphorus by the ash. Elovic's model adequately described the kinetics of the process. The highest removal efficiency was 98.88% at 30 oc for a phosphorus concentration of 100 mg L-l. Therefore, pequi ash has the potential to be used as an excellent bioadsorbent. As significant scientific contributions, it is expected: to make viable the use of plant residues as raw material for the development of new bioadsorbents; generate original knowledge; contribute to sustainable regional development.

MEMBROS DA BANCA:
Interno - 1549937 - CELME TORRES FERREIRA DA COSTA
Presidente - 1513585 - FRANCISCO JOSE DE PAULA FILHO
Externo à Instituição - HENRIQUE DOUGLAS MELO COUTINHO - URCA
Externo à Instituição - RAIMUNDO NONATO PEREIRA TEIXEIRA - URCA