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Quitosana funcionalizada com líquidos iônicos para adsorção de corantes
(Universidade Federal de Santa Maria, 2024-04-19)
This work presents the synthesis and characterization of chitosan derivatives containing imidazolium groups in their structure. The characterization was carried out using nuclear magnetic resonance (NMR), infrared spectroscopy ...
Determinação multiclasse de fármacos e produtos de cuidado pessoal em água empregando SPE e UHPLC-MS/MS para avaliação de risco ambiental
(Universidade Federal de Santa Maria, 2024-03-28)
Pharmaceuticals and personal care products (PPCPs) are substances found in medicines, cosmetics, personal care products and cleaning products. These substances can enter the aquatic environment through excretion and/or ...
Utilização de carvão ativado de produção de sílica biogênica para adsorção de fenol e tratamento de água produzida de petróleo
(Universidade Federal de Santa Maria, 2024-03-28)
This study aimed to present viable alternatives for the treatment of produced water (PW)
using a purification method to convert sodium silicate-impregnated activated carbon (CA-
SodSi), obtained at no cost as a byproduct ...
Estabelecimento de método multirresíduo de agrotóxicos em água para avaliação da potabilidade
(Universidade Federal de Santa Maria, 2024-02-26)
Water is an essential resource for life, playing a fundamental role in controlling organism temperature, dissolving essential substances, and facilitating physiological and biochemical processes such as nutrient transportation ...
Avaliação do emprego da radiação micro-ondas para a pirólise de casca de arroz e obtenção de produtos com maior valor agregado
(Universidade Federal de Santa Maria, 2024-03-28)
In the present study a microwave-assisted pyrolysis system was used for the production of bio-oil, biochar, and biogas using rice husk as raw material. A domestic microwave oven was employed, whose cavity was adapted ...