In this work we have assessed the decolorization of textile effluents throughout their treatment in a solid-state fermentation (SSF) system. SSF assays were conducted with peach-palm (Bactris gasipaes) residue using the white rot fungus Ganoderma lucidum EF 31. The influence of the dye concentration and of the amounts of peach-palm residue and liquid phase on both the discoloration efficiency and enzyme production was studied. According to our results, independently of experimental conditions employed, laccase was the main ligninolytic enzyme produced by G. lucidum. The highest laccase activity was obtained at very low effluent concentrations, suggesting the existence of an inhibitory effect of higher concentrations on fungal metabolism. The highest percentage of color removal was reached when 10 grams of peach palm residue was moistened with 60 mL of the final effluent. In control tests carried out with the synthetic dye Remazol Brilliant Blue R (RBBR) decolorization efficiencies about 20% higher than that achieved with the industrial effluent were achieved. The adsorption of RBBR on peach-palm residue was also investigated. Equilibrium tests showed that the adsorption of this dye followed both Langmuir and Freundlich isotherms. Hence, our experimental results indicate that peach-palm residue is suitable substrate for both laccase production and color removal in industrial effluents.

No abstract

No abstract

No abstract

Filter Backwash Water (FBW) from water treatment plants (WTP) is composed of raw water waste, chemicals and microorganisms. Inappropriate disposal of this residue impacts negatively in the environment and in the health of human populations. Aiming to characterize the FBW from one WTP of Blumenau-SC, physiochemical, microbiological and parasitological assessments and tests with different flocculants polymers were performed in order to propose strategies for treatment and reuse of this residue. Subsequently treated liquid is discharged into the Itajaí-Açu River (Class 2). Physicochemical and microbiological analyses showed results higher than those permitted by CONAMA Resolution n° 430/2011 and Giardia duodenalis (Assembly B) cysts and Cryptosporidium spp. oocyst positivity was observed, characterizing as polluted and contaminated residue that shouldn't be released in the hydric body.  The anionic flocculant polymer showed satisfactory results in the turbidity sample reduction (99.49%), which may be a promising alternative in the treatment of this residue.

a b s t r ac tA waste material in the form of discarded solid bleached sulfate (SBS) paperboard coated with polyethylene terephthalate (PET) was characterized by Fourier transform infrared spectroscopy and scanning electron microscopy. The aim was to investigate its use as an adsorbent for the removal of the reactive dye Remazol Brilliant Blue R (RBBR) from aqueous solutions in batch mode. The effects of pH, agitation speed and adsorbent dosage were determined using the response surface methodology. Sorption of RBBR onto SBS paperboard coated with PET was found to be efficient at pH 2. The optimum conditions were adsorbent dose of 4.5 g and agitation speed of 100 rpm. With regard to the kinetics, four different isotherm models were tested and the pseudo-second-order model best described the sorption mechanism (R 2 = 0.999). The equilibrium data were analyzed using Freundlich, Langmuir, Temkin and Dubinin-Radushkevich isotherms. The Freundlich adsorption capacity (Q o ) was found to be 1.21 mg g -1 with R 2 = 0.995. Thermodynamic studies showed a negative ΔH° value, indicating that the sorption process is exothermic.

RESUMO O progresso em tecnologias da informação em saúde oferece novas oportunidades, bem como novos cenários de aplicação, trazendo benefícios em qualidade dos serviços médicos e redução dos custos de saúde. As organizações de saúde, consideram a aplicação da Tecnologia da Informação como uma chave fundamental para melhorar a gestão de saúde, porém poucos trabalhos analisam o impacto de sistemas de informação em termos econômicos e de qualidade dos cuidados aos pacientes, além da escassez de estudos que considerarem as características da tecnologia da informação em saúde e as relações que vinculam a informação ao seu ambiente para tomada de decisão. A literatura relacionada com a Avaliação da Tecnologia da Informação em saúde parece ser ainda muito dispersa e fragmentada, demandando novos estudos. Assim, o objetivo geral deste trabalho consiste em propor um framework de avaliação de tecnologia da informação em saúde na perspectiva do custo efetividade, combinando diferentes modelos de adoção de tecnologia. A pesquisa buscou preencher a lacuna e examinar um modelo de avaliação abrangente e documentar o seu impacto sobre o processo decisório dos hospitais em adotar tecnologias em saúde e de fato alavancar resultados tanto para o paciente como uma forma de melhorar a gestão. Para o desenvolvimento do estudo foi aplicado o método Design Science Research (DSR) e avaliação do framework foi feito através de três estudos de caso realizados em hospitais público e público-privado. Os resultados indicam que a avaliação da tecnologia em saúde demanda um framework abrangente, sendo necessário abordar problemas de tecnologia, humanos, organização e aspecto econômico (custo-efetividade).

Refrigeration and coating of active biopolymers are two potential approaches to extending the shelf life of fresh fruits. Thus, the aim of this study was to test the influence of storage temperature (5 and 10 °C ± 1 °C) and whey concentration (edible coating), on functional, physical-chemical, and microbiological characteristics of acerola stored for 12 days. Edible coatings were produced using whey (30% and 60%) and glycerol. Samples were compared to a control (no coating), during storage at both temperatures. Storage at 10 °C improved the maintenance of the acerola color, while storage at 5 °C increased the stability of vitamin C and decreased microbial growth (p ≤0.05). The application of edible coating reduced the total color variation and degradation (a*) at both temperatures. The concentration of whey influenced significantly (p≤0.05) on the vitamin C content (A10-60), and on the mesophilic (A5-60 and A10-60) and psychrotrophic bacteria (A10-60) counts.