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Itens para a visualização no momento 31-40 of 43
Íons fluoreto em águas subterrâneas: monitoramento e remoção por eletrocoagulação-flotação e adsorção com resíduos de tabaco
(Universidade Federal de Santa Maria, 2020-01-27)
The excess of fluoride ions (F-) is a problem in the quality of water supply because they can trigger
human health problems such as dental and skeletal fluorosis. Removal of F- to concentrations predicted
by potability ...
Utilização de resíduos aluminosilicatos como catalisadores foto-Fenton e adsorventes no tratamento de efluentes
(Universidade Federal de Santa Maria, 2023-01-31)
The management of Water Treatment Plant (WTP) sludge and coal fly ash waste is one of the
biggest problems faced by many sanitation and thermoelectric companies, with landfill being the
main destination of these materials. ...
Desenvolvimento e caracterização de um compósito HDL/biocarvão para adsorção de corante vermelho do Congo
(Universidade Federal de Santa Maria, 2022-08-29)
In this work the utilization of activated lychee peel biochar (ALPB) and Ca-Cr layered double
hydroxide for production of a composite was investigated. The CaCr/HDL-ALPB was
synthetized by coprecipitation and characterized ...
Avaliação das características de bio-óleo e biochar produzidos por pirólise a partir de biomassas lignocelulósicas
(Universidade Federal de Santa Maria, 2023-03-09)
Lignocellulosic biomass is considered one of the alternative renewable resources with the
potential to supply the high world energy demand, by reducing dependence on fossil fuels. The
use of this valuable resource as raw ...
Desenvolvimento de materiais carbonáceos a partir de subprodutos do processamento de butiá (Butia spp.) e aplicação como adsorventes de fenol e CO2
(Universidade Federal de Santa Maria, 2023-03-09)
Waste generation and environmental pollution contention are challenges to modern society.
Liquid effluents pollute water sources and gaseous can aggravate the greenhouse effect.
Adsorption highlights among the technologies ...
Adsorção de corante alaranjado de metila aplicando hidróxidos duplos lamelares de Ca/Fe suportado em biochar de serragem de eucalipto
(Universidade Federal de Santa Maria, 2023-02-28)
Contamination of water resources is a topic much discussed by society due to the serious
problems it entails for public health. Among several pollutants, dyes represent the largest
group of organic contaminants. In view ...
Preparação e caracterização de carvão ativado magnético obtido a partir da serragem de madeira sapelli (Entandrophragma cylindricum) para adsorção do corante azul brilhante
(Universidade Federal de Santa Maria, 2023-03-10)
The contamination of water bodies by dyes has been a problem to be fought because the large
amounts of effluents released into water bodies are harmful to the environment and living
beings. Thus, it is necessary to develop ...
Modificações na casca de arroz para a adsorção de azul de metileno em batelada e leito fixo
(Universidade Federal de Santa Maria, 2016-08-12)
In this work, rice husk and its modifications were investigated as methylene blue adsorbents, using discontinuous (batch) and continuous (fixed bed) adsorption operations. The rice husk was modified through alternative ...
Desenvolvimento de nanofibras a partir de polímeros reciclados para remoção de metais pesados
(Universidade Federal de Santa Maria, 2023-08-17)
Contamination of water resources by heavy metals and the increasing generation of polymeric
waste are aggravating problems in modern society, capable of causing diverse and severe
impacts on the environment and human ...
Desenvolvimento e aplicação de unidades de desfluoretação para tratamento de água
(Universidade Federal de Santa Maria, 2023-08-29)
Fluoride is an element present in groundwater and is associated with health benefits, however,
in concentrations, generally above 1.5 mg L-1, these benefits can become risks. So that water
with excess fluoride can be ...