Iron and steel are valuable commodities worldwide. Pig iron is produced mainly by blast furnaces, being the primary raw material used in manufacturing. The ironmaking sector intensive energy use greenhouse gas emission; however, detailed information on further environmental impacts concerning blend of sources co-product utilization as well a rigorous application life cycle assessment (LCA) method scarce. This study aimed to assess performance production 1.0 t pig from cradle-to-gate via LCA....

This study compares the logistics of decommissioning wind turbine blades for energy recovery in a cement kiln (proposed scenario) to industrial landfill site disposal and coke fuel combined (base check financial cost operation each scenario. The farm coordinates, blade mass, costs 760 farms Northeast Brazil were used determine location material processing center (MPC) waste. findings showed that proposed scenario was higher than base when single MPC considered serve region. However,...

A large variety of organic and inorganic compounds may be found in wastewater which can contribute to environmental contamination. Oxidation processes with ozone (O3; O3/UV; O3/H2O2; O3/TiO2; O3/Mn+2) the use pre- or post-treatment combined biological has been extensively studied for treatment effluents. The aim this work was evaluate potential ozonation process several industrial wastewaters, namely effluents from paper mills, textile, whey (dairy industry), pharmaceutic sand pesticides plants.

There are only a few established methods to determine the concentration of encapsulated viruses, such as SARS-CoV-2, in water matrices, limiting application wastewater-based epidemiology (WBE)-an important tool for public health research. The present study compared four that commonly used concentrate non-encapsulated enteric viruses determining SARS-CoV-2 wastewater and wastewater-enriched river samples. tested were electronegative membrane with Mg

The treatment of paper mill effluent for COD, TOC, total phenols and color removal was investigated using combined activated sludge-ozonation processes single processes. sludge-O3/pH 10 able to remove around 80% TOC from Kraft E1 effluent. For the phenols, efficiency 70%. ozonation post carried out at pH 8.3 also showed better results than process. obtained were 75.5, 59.1, 77 52.3%, respectively. difference in concentrations free radical produced by affected mainly phenol values.

Masonry wall is a key construction subsystem, but it embodies significant environmental and energy burdens within the life cycle of buildings. Soil-cement bricks blocks stand as an alternative low-cost masonry material, despite widespread claim to be environmentally friendly, more systematic investigation lacking. This study aimed assess performance 1.0 m2 soil-cement brick from cradle-to-construction in terms carbon, energy, water footprints, fossil mineral resource use, well compare with...

Wastewater-based epidemiology (WBE) becomes an interesting epidemiological approach to monitoring the prevalence of SARS-CoV-2 broadly and non-invasively. Herein, we employ for first time WBE, associated or not with PEG 8000 precipitation method, detection in samples raw treated wastewater from 22 municipal treatment stations (WWTPs) located Salvador, fourth most populous city Brazil. Our results demonstrate success application WBE detecting both types evaluated samples, regardless usage...

A siderurgia de ferro e aço tem sofrido pressões transformações determinantes nos últimos anos em função dos impactos ambientais gerados pelo setor. O gusa, principal matéria-prima do aço, é produzido majoritariamente por meio alto-fornos, uma tecnologia intensiva consumo energia, recursos primários e, também, emissão gases efeito estufa (GEE). Ao passo que o setor se vê pressionado com a escassez matérias-primas as repercussões da mudança climática, rotas tecnológicas processo...

Objective: To analyze the environmental performance of biosurfactants in comparison to synthetic surfactant based on literature. Theoretical Framework: Surfactants are used various sectors, ranging from domestic uses industrial applications. Their surface tension reduction properties make them efficient cleaning and versatile, however they come predominantly fossil sources. In contrast, constitute a variety surfactants obtained by microorganisms, including yeasts, bacteria fungi, renewable...

Human interference in the aquatic ecosystem has created an unideal environment fpo-ooor creatures, emphasizing accident fuel and oil leaks from offshore cargo ships drilling, respectively. In this context, a preliminary study was conducted to analyze further effects that spill causes water environment. The methodology used standard method of conducting ecotoxicological essays using Daphnia similis but adapted for fewer resources obtain primary analysis. results indicate spills are still...

This study aims to assess different priority scenarios for developing Green Hydrogen (GH2) projects in Bahia, considering input conditions a mathematical model. analysis supports the decision-making process regarding implementing GH2 production units, especially those utilizing water electrolysis technique and electricity from renewable sources. Using Analytic Hierarchy Process (AHP) method, eight hypothetical were modeled, use of on-grid off-grid energy, intended meet local or external...

This study presents a comparative life cycle assessment (LCA) of two manufacturing scenarios for camera housing: Powder Bed Fusion (PBF) using polyamide 12 (PA-12) and Computer Numeric Control (CNC) machining aluminum, cradle-to-gate boundary. The selected impact categories were cumulative energy demand (CED) global warming potential (GWP). key findings indicate that the PA-12 PBF part outperformed aluminum CNC one in terms environmental performance, showing significant reduction...

Lean Six Sigma (LSS) is recognized as a continuous improvement methodology that enhances operational processes by reducing waste, variability, and costs, while increasing the quality of products services. Originating in industrial manufacturing sectors, it has been implemented healthcare over past three decades to improve performance, costs excellence. In animal research facilities, LSS was first reported at Seattle Children’s Hospital, where tools methods were applied administrative support...

This study endeavors to promote the responsible disposal of solid waste within a student environment, addressing concerns regarding sustainability our planet. The level sensitivity and awareness among academic community proper practices was assessed. As an intervention strategy, collection point established at center UFRB. While most respondents exhibited knowledge subject, over 80% highlighted lack access points. Furthermore, 84% believe that initiatives like this one foster habits, yet...

In the context of Product Development Process (PDP), particularly during development phase, there is growing recognition importance waste management in producing components used industry. This increased awareness has led to a progressive interest formulating approaches understand and mitigate possible resulting environmental impacts. Within this context, considering substantial increase application Additive Manufacturing techniques oil gas industry, especially deposition polymeric layers,...

The Joanes I Reservoir is responsible for 40% of the drinking water supply Metropolitan Region Salvador, Bahia, Brazil. For sources such as this, there concern regarding proliferation potentially toxin-producing cyanobacteria, which can cause environmental and public health impacts. To evaluate presence cyanobacteria their cyanotoxins in this reservoir, were identified by microscopy; genes cyanotoxin-producing was detected molecular methods (polymerase chain reaction (PCR)/sequencing);...

Abstract This study aims to analyze the energy and environmental performance of manufacture two models wind turbine blades for a 300 MW farm. Material flow analysis (MFA) was used prepare mass balance, while life cycle assessment (LCA), based on ISO-14044, evaluate three impact categories, considering sensitivity replacement blade materials. Results showed that manufacturing causes 10% loss material impregnated with fiberglass epoxy resin. Fiberglass input highest contribution water...

<p>Com a reformulação da norma ISO14001, em 2015, surgiram novos desafios para as organizações implementarem o Sistemas de Gestão Ambiental (SGA). O objetivo deste trabalho foi analisar alterações dos requisitos apresentados na versão ISO 14001:2015 e propor recomendações implantação do SGA. Os procedimentos metodológicos adotados foram realizar análise documental comparativa das versões (2004 2015) utilizá-la como base um estudo exploratório, por meio aplicação questionários...

O Estado da Bahia ocupa o primeiro lugar em geração de energia eólica no Brasil. Em outubro 2020, a tinha 177 parques eólicos operação com capacidade instalada 4.406 MW e 1,95 TW/h. crescimento na trouxe diversos benefícios, exemplo diversificação matriz energética do estado, segurança atração investimentos, bem como desafios relacionados à destinação dos componentes, as pás eólicas, após período vida útil. Estas das turbinas eólicas são construídas materiais compósitos, tendo base fibra...

Neste trabalho, analisamos a aplicação do Diagrama de Fontes Água (DFA), um método otimização uso da água em processos industriais, e comparamos com os resultados balanço massa realizado por programação matemática estudo caso uma indústria petroquímica brasileira partir dos mesmos dados. A rede proposta através DFA no software MINEA 2.0 minimizaria sensivelmente o consumo (< 1%) relação à integração mássica artigo referência e, forma mais expressiva, reduziria 3% planta real operação;...