Abstract：
:Hydrogen (H2) is considered a clean valuable energy source and its worldwide demand has increased in recent years. The Water-Gas Shift (WGS) Reaction is one of the major routes for hydrogen production and uses different catalysts depending on the operating process conditions. A catalyst is usually composed of an active phase and a support for its dispersion. There are currently an increasing number of researches on catalytic field focusing on transition metals nanoparticles supported on different compounds. In order to predict optimal catalyst compositions for the WGS reaction, Artificial Neural Networks (ANNs) were used to build a model from the literature catalytic data. A three-layer feedforward neural network was employed with active phase composition and support type as some of the input variables, and Carbon Monoxide (CO) conversion as output variable. The insertion of properties such as surface area, calcination temperature and time allowed predicting the reaction performance based on intrinsic catalyst variables not commonly used in phenomenological kinetic models. Also, unlike previous studies, a detailed sensitivity analysis was carried out to observe useful trends. An important outcome of this work is the proposition of ceria-supported catalysts for the WGS reaction that present larger surface areas, with Ru, Ni or Cu as active phases conducted at moderate temperatures (≈300 °C) and with reasonable space velocities (2000-6000 h-1). In addition, it was possible to predict the most relevant variables for the process: the temperature and the surface area. Thus, the results show the power of ANNs for predicting better catalysts and conditions for this important process in the environmental field.
journal_name
J Environ Managejournal_title
Journal of environmental managementauthors
Cavalcanti FM,Schmal M,Giudici R,Brito Alves RMdoi
10.1016/j.jenvman.2019.02.092subject
Has Abstractpub_date
2019-05-01 00:00:00pages
585-594eissn
0301-4797issn
1095-8630pii
S0301-4797(19)30243-9journal_volume
237pub_type
杂志文章abstract：:Cropping of maize (Zea mays L.) on sandy soil in wet climates involves a significant risk for nitrogen (N) losses, since nitrate added in fertilizers or produced from residues and manure may be lost outside the period with active crop N uptake. This one-year lysimeter experiment investigated the potential of Vizura®, ...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2020.110165
更新日期：2020-04-15 00:00:00
abstract：:Microbial communities play key roles in remediation and reclamation of contaminated environments via biogeochemical cycling of organic and inorganic components. Understanding the trends in in situ microbial community abundance, metabolism and carbon sources is therefore a crucial component of effective site management...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2016.11.029
更新日期：2017-03-01 00:00:00
abstract：:Zn(II) and Cd(II) removal by biosorption using Undaria pinnatifida was studied in batch and dynamic systems. The kinetic uptake follows a pseudo second order rate equation indicating that the rate limiting step is a chemical reaction. The equilibrium data are described by the Langmuir isotherm in mono-component soluti...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2013.07.011
更新日期：2013-11-15 00:00:00
abstract：:Changes in agricultural policy have traceable effects on landscape aesthetics. For the catchment area of Lake Greifensee, an economic land-use model predicted land-use changes caused by agricultural policy. Three scenarios implementing different direct payment schemes show that land-use intensity will decrease by 2011...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2007.01.060
更新日期：2008-11-01 00:00:00
abstract：:The present study explores a novel application of Huma-K, a commercially available, unrefined humic substance, as a promising low-cost source of organic matter for in situ remediation of contaminated acidic groundwater plumes. This can be achieved by creating a humic-rich coating on the surface of minerals which can e...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2018.02.017
更新日期：2018-04-15 00:00:00
abstract：:In this study, ten bacterial strains were found to be mercury resistant after their isolation from Qatari coastal sediments. Tolerance was found to be up to 100-150 ppm for five strains. Those strains had optimum growth conditions at salinity level of 10 ppm NaCl and pH 7-8. Starting from a concentration 7.9 ppm of me...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2019.02.066
更新日期：2019-05-01 00:00:00
abstract：:This paper describes a comparative analysis of alternative methods of constructing composite indicators to measure the sustainability of the agricultural sector. The three methods employed were Principal Component Analysis, the Analytic Hierarchy Process and a Multi-Criteria technique. The comparison focused on the ir...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2009.05.023
更新日期：2009-08-01 00:00:00
abstract：:Microbial fuel cell (MFC) technology has emerged as a new and attractive bioelectrochemical approach in the last one and a half decade that offers an alternative to conventional treatment methods to remove and recover heavy metals and organics from wastewaters with simultaneous energy production. This technique has ad...
journal_title：Journal of environmental management
pub_type： 杂志文章,评审
doi：10.1016/j.jenvman.2020.110826
更新日期：2020-09-15 00:00:00
abstract：:Phosphorus (P) recovery from wastewater has been recognized as a critical technology for solving the sustainable supply of this indispensable and non - renewable natural resource. In this study, the cost - free magnesium and calcium sources of using the cooling water system effluent (CWSE) in two thermal power plants ...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2019.05.057
更新日期：2019-08-15 00:00:00
abstract：:The concept of soil health refers to specific soil properties and the ability to support and sustain crop growth and productivity, while maintaining long-term environmental quality. The key components of healthy soil are high populations of organisms that promote plant growth, such as the plant growth promoting rhizob...
journal_title：Journal of environmental management
pub_type： 杂志文章,评审
doi：10.1016/j.jenvman.2020.111118
更新日期：2020-11-01 00:00:00
abstract：:Lipid production in microalgae under nitrogen (N) starved condition can be enhanced by excess phosphorus (P) supply in the second stage of two-stage cultivation strategy. However, implementing two-stage cultivation is difficult in large-scale cultivation system as it requires high energy of transferring large algal bi...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2020.111041
更新日期：2020-10-01 00:00:00
abstract：:Information on historical landslides and floods - collectively called "geo-hydrological hazards - is key to understand the complex dynamics of the events, to estimate the temporal and spatial frequency of damaging events, and to quantify their impact. A number of databases on geo-hydrological hazards and their consequ...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2017.11.022
更新日期：2018-02-01 00:00:00
abstract：:Magnetic nanoparticles have been successfully used to recovery oil from oil spilled on water. Two different methods, floating and vortex, were employed to promote the interaction of four oil samples with different API (e.g., 10, 20, 28 and 45) spilled on seawater and deionized water with three magnetic materials, name...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2019.04.106
更新日期：2019-07-15 00:00:00
abstract：:This review paper focuses on various gas processing technologies and materials that efficiently capture trace levels of carbon dioxide (CO2). Fundamental separation mechanisms such as absorption, adsorption, and distillation technology are presented. Liquid amine-based carbon capture (C-capture) technologies have been...
journal_title：Journal of environmental management
pub_type： 杂志文章,评审
doi：10.1016/j.jenvman.2019.109874
更新日期：2020-02-01 00:00:00
abstract：:To meet the needs of a fast growing global population, agriculture and livestock production have been intensified, resulting in environmental pollution, climate change, and soil health declining. Closing the nutrient circular loop is one of the most important sustainability factors that affect these issues. Apart from...
journal_title：Journal of environmental management
pub_type： 杂志文章,评审
doi：10.1016/j.jenvman.2018.09.030
更新日期：2019-01-15 00:00:00
abstract：:The aim of this work is to study the effects of different simulated mechanical recycling processes on the structure and properties of PLA. A commercial grade of PLA was melt compounded and compression molded, then subjected to two different recycling processes. The first recycling process consisted of an accelerated a...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2017.05.020
更新日期：2018-06-15 00:00:00
abstract：:Assessing the driving forces of sandy desertification is fundamental and important for its control. It has been widely accepted that both climatic conditions and land use have great impact on sandy desertification in northern China. However, the relative role and synergistic effect of each driving force of sandy deser...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2013.02.033
更新日期：2013-07-15 00:00:00
abstract：:Receptor and dispersion models both provide important information to help understand the emissions of volatile organic compounds (VOCs) and develop effective management strategies. In this study, differences between the predicted concentrations of two models and the associated impacts on the estimated health risks due...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2015.10.050
更新日期：2016-01-15 00:00:00
abstract：:Fire behaviour under experimental conditions is described in nine Mediterranean gorse shrublands ranging from 3-12 years of age with different fuel loads. Significant differences in the fire-line intensity, fuel load and rate of fire spread have been found to be related to the stage of development of the communities. ...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1006/jema.2002.0545
更新日期：2002-06-01 00:00:00
abstract：:Globally, much weight is currently being placed on agriculture to provide food for the growing population as well as feedstock for the bioenergy industry. Unfortunately, the intensification of agricultural operations to satisfy these growing needs has been associated with a number of environmental and human health ris...
journal_title：Journal of environmental management
pub_type： 杂志文章,评审
doi：10.1016/j.jenvman.2014.11.024
更新日期：2015-03-15 00:00:00
abstract：:The present work undertakes an examination and comparison of electro-Fenton (EF), electro-peroxi-coagulation (EPC) and electrocoagulation (EC) applied to the E. coli inactivation in batch reactor. Indeed, platinum (Pt (anode), EF), stainless steel (SS (cathode), EF, EPC) and ordinary steel (Fe (anode), EPC) and alumin...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2018.08.038
更新日期：2018-11-15 00:00:00
abstract：:For most water treatment plants, a significant number of performance data variables are attained on a time series basis. Due to the interconnectedness of the variables, it is often difficult to assess over-arching trends and quantify operational performance. The objective of this study was to establish simple and reli...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2017.02.027
更新日期：2017-05-15 00:00:00
abstract：:Releasing and mixing of pollutants in rivers can cause serious threats for downstream users. Longitudinal dispersion is an important factor in describing pollutant transport process in rivers. The focus of this study is on the effect of floodplain rigid vegetation characteristics including its arrangement, density and...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2018.03.084
更新日期：2018-07-01 00:00:00
abstract：:The objective of this study was to experimentally probe the mechanism of chloride ions specifically affecting aniline oxidation by Fenton's reagent. Batch experiments were carried out to investigate the effects of pH, Fe2+, H2O2 and chloride concentration on the oxidation reaction. Results show that the inhibition cau...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2004.12.003
更新日期：2005-04-01 00:00:00
abstract：:This paper assess the mechanical an environmental behaviour of cement mortars manufactured with addition of fly ash (FA) and bottom ash (BA), as partial cement replacement (10%, 25% and 35%). The environmental behaviour was studied by leaching tests, which were performed under several temperature (23 °C and 60 °C) and...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2013.12.009
更新日期：2014-01-15 00:00:00
abstract：:This paper evaluates the processes and mechanisms available for integrating different types of knowledge for environmental management. Following a review of the challenges associated with knowledge integration, we present a series of questions for identifying, engaging, evaluating and applying different knowledges dur...
journal_title：Journal of environmental management
pub_type： 杂志文章,评审
doi：10.1016/j.jenvman.2010.03.023
更新日期：2010-08-01 00:00:00
abstract：:The immediate effects of prescribed burning, shrub clearing and shrub mastication on runoff, infiltration and erosion were evaluated in two contrasting shrubland areas in northern Spain. Rainfall simulations (67 mm h(-1) for 30 min) were conducted immediately after fuel reduction treatments in each runoff plot. Compar...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2012.03.048
更新日期：2012-08-30 00:00:00
abstract：:In recent years, considerable efforts have been devoted to minimizing the environmental consequences from building industry globally, as the industry is notorious for its significant resource consumption and environmental emissions. However, due to a lack of data representativeness in many parts of the world, consider...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2020.110230
更新日期：2020-05-01 00:00:00
abstract：:Tourist numbers in northern Fennoscandia outweigh those in other northern boreal - arctic regions, which creates a specific need to evaluate the impacts of tourism. This review 1) identifies patterns and trends in the vegetation and wildlife of northern Fennoscandian terrestrial ecosystems as a consequence of tourism ...
journal_title：Journal of environmental management
pub_type： 杂志文章,评审
doi：10.1016/j.jenvman.2015.12.011
更新日期：2016-03-15 00:00:00
abstract：:As in most mature crude oil producing regions, asset divestment has commenced in Nigeria. Decommissioning and associated environmental liabilities are expected to become important problems requiring attention. Public and government engagement on decommissioning will be ineffective without information on cost of decomm...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2017.08.036
更新日期：2017-12-15 00:00:00
