Abstract：
:A direct alkali-hydrothermal induced transformation process was adopted to prepare nepheline from raw kaolinite (shortened form RK in this paper) and NaOH solution in this paper. Structure and morphology characterizations of the synthetic product showed that the nepheline possessed high degree of crystallinity and uniform surface morphology. Specific surface area of nepheline is 18 m2/g, with a point of zero charge at around pH 5.0-5.5. The fluoride (F- ions) adsorption by the synthetic nepheline (shortened form SN in this paper) from aqueous solution was also investigated under different experimental conditions. The adsorption process well matched the Langmuir isotherm model with an amazing maximum adsorption capacity of 183 mg/g at 323 K. The thermodynamic parameters (ΔG0, ΔH0, and ΔS0) for adsorption on SN were also determined from the temperature dependence. The adsorption capacities of fluoride on SN increased with increasing of temperature and initial concentration. Initial pH value also had influence on adsorption process. Adsorption of fluoride was rapidly increased in 5-60 min and thereafter increased slowly to reach the equilibrium in about 90-180 min under all conditions. The adsorption followed a pseudo-second order rate law.
journal_name
J Environ Managejournal_title
Journal of environmental managementauthors
Wang H,Feng Q,Liu K,Li Z,Tang X,Li Gdoi
10.1016/j.jenvman.2017.03.015subject
Has Abstractpub_date
2017-07-01 00:00:00pages
72-79eissn
0301-4797issn
1095-8630pii
S0301-4797(17)30213-Xjournal_volume
196pub_type
杂志文章abstract：:A two-stage inexact joint-probabilistic programming (TIJP) method is developed for planning a regional air quality management system with multiple pollutants and multiple sources. The TIJP method incorporates the techniques of two-stage stochastic programming, joint-probabilistic constraint programming and interval ma...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2010.10.027
更新日期：2011-03-01 00:00:00
abstract：:To preserve the quality of surface water, official French regulations require farmers to keep a minimum acreage of grassland, especially bordering rivers. These agro-environmental measures do not account for the circulation of water within the catchment. This paper examines whether it is possible to design with the fa...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2011.11.001
更新日期：2012-04-15 00:00:00
abstract：:In this study, bone char (BC) from pleco fish (Pterygoplichthys spp.) was synthesized, and their textural and physicochemical properties, as well as its adsorption capacity towards fluoride and Cd(II) from single and binary aqueous solutions, were determined. The results showed that the properties of the BCs were inde...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2019.109956
更新日期：2020-02-15 00:00:00
abstract：:The present study deals with bioavailability of trace metals in the Doce river continental shelf, southeast of Brazil. The bottom sediments of the study area were firstly sampled a few weeks before the biggest environmental disaster of Brazil, the collapse of the Fundão dam in November of 2015. The disaster released a...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2020.111086
更新日期：2020-10-15 00:00:00
abstract：CONTEXT:Leachate is the liquid formed when waste breaks down in the landfill and water filters through that waste. This liquid is highly toxic and can pollute the land, ground water and water ways. It is mandatory for landfills to protect against leachate in most countries worldwide. Controlling the pollutant loading, ...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2014.04.037
更新日期：2014-12-15 00:00:00
abstract：:In areas of varying geology, it is difficult to infer water quality from specific conductance or electrical conductivity (EC) data without an understanding of the expected range of EC values based on local bedrock composition. This paper describes a user-friendly graphical screening method that addresses this issue by...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2006.01.014
更新日期：2007-03-01 00:00:00
abstract：:Decentralized urban runoff management requires detailed information about pollutant sources and pathways. However, scarce data of local water quality compel simplified approaches in water quality modelling. This study investigated the use of constant source concentrations in modelling pollutant loads. The source area ...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2018.12.061
更新日期：2019-03-01 00:00:00
abstract：:One of the main challenges in industrial wastewater treatment and recovery is the removal of sulfate, which usually coexists with Ca2+ and Mg2+. The effect of Mg2+ on sulfate removal by ettringite precipitation was investigated, and the process was optimized in the absence and presence of Mg2+. In the absence of Mg2+,...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2017.03.054
更新日期：2017-07-01 00:00:00
abstract：:This article examines the characteristics of and reasons for Norwegian farmers' ceasing or planning to cease certified organic production. We gathered cross-sectional survey data in late 2007 from organic farmers deregistering between January 2004 and September 2007 (n=220), and similar data from a random sample of fa...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2010.07.026
更新日期：2010-12-01 00:00:00
abstract：:Early warning systems have been widely deployed to safeguard water security. Many contamination detection methods have been developed and evaluated in the past decades. Although encouraging detection performance has been obtained and reported, these evaluations mainly used artificial or laboratory data. The evaluation...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2015.07.026
更新日期：2015-09-15 00:00:00
abstract：:Protected area management agencies are increasingly using management effectiveness evaluation (MEE) to better understand, learn from and improve conservation efforts around the globe. Outcome assessment is the final stage of MEE, where conservation outcomes are measured to determine whether management objectives are b...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2014.10.023
更新日期：2015-02-01 00:00:00
abstract：:The way in which disturbances from human land use are patterned in space across scales can have important consequences for efforts to govern human/environment with regard to, but not only, invasive spread-dispersal processes. In this context, we explore the potential of disturbance patterns along a continuum of scales...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2013.05.006
更新日期：2013-10-15 00:00:00
abstract：:One of the main actions of sustainability that is applicable to residential, commercial, and public buildings is the rational use of water that contemplates the reuse of greywater as one of the main options for reducing the consumption of drinking water. Therefore, this research aimed to study the efficiencies of simp...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2016.03.035
更新日期：2016-07-01 00:00:00
abstract：:The best-estimate plus uncertainty method has been widely used in safety analysis for nuclear power plants. In this method, it is very important to have a sound uncertainty propagation method which should model the propagation of both epistemic and aleatory uncertainties and provide clear interpretation of the result....
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2019.01.050
更新日期：2019-04-01 00:00:00
abstract：:The benefits of strategic environmental considerations in the process of siting a repository for low- and intermediate-level radioactive waste (LILW) are presented. The benefits have been explored by analyzing differences between the two site selection processes. One is a so-called official site selection process, whi...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2010.08.010
更新日期：2011-01-01 00:00:00
abstract：:A protocol was developed with the purpose of assessing the main costs implied in the set-up, operation and maintenance of a waste gas-treating conventional biofilter. The main operating parameters considered in the protocol were the empty bed residence time and the gas flow rate. A wide variety of investment and opera...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2009.01.022
更新日期：2009-06-01 00:00:00
abstract：:One of the major advances of this research is to produce porous glass ceramics (PGCs) via a feasible and cost-effective powder forming chemistry to convert solid wastes, extracted titanium tailing (ETT) and waste glass (WG) into the value-added PGCs. The maximum handling amount of ETT (30%) is determined from systemat...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2020.110197
更新日期：2020-05-01 00:00:00
abstract：:Mechanisms underlying the loss of ecological resilience and a shift to an alternate regime with lower ecosystem service provisioning continues to be a leading debate in ecology, particularly in cases where evidence points to human actions and decision-making as the primary drivers of resilience loss and regime change....
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2019.02.073
更新日期：2019-06-15 00:00:00
abstract：:Biohydrogen production from dark fermentation of lignocellulosic materials represents a huge potential in terms of renewable energy exploitation. However, the low hydrogen yield is currently hindering its development on industrial scale. This study reviewed various technologies that have been investigated for enhancin...
journal_title：Journal of environmental management
pub_type： 杂志文章,评审
doi：10.1016/j.jenvman.2015.04.006
更新日期：2015-07-01 00:00:00
abstract：:Habitat fragmentation is the focus of much conservation concern and associated research. In some countries, such as Britain, the main phase of fragmentation occurred centuries ago and the focus of conservation management is now on restoration and recovery. Scenario studies have suggested that spatial targeting is pref...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2007.09.002
更新日期：2009-01-01 00:00:00
abstract：:Catchments are complex social-ecological systems involving multiple, and often competing, interests. Water governance and management regimes are increasingly embracing pluralistic, participatory, and holistic norms as a means to engage with issues of complexity, uncertainty, and value-conflicts. Integrated, participat...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2018.06.054
更新日期：2018-10-01 00:00:00
abstract：:Guidance values are used to regulate exposure to surface soil contamination. In the United States, element guidance values have been promulgated by at least 6 federal agencies, 46 states, and several regional, city, county, territorial, and autonomous Native American jurisdictions. Guidance values have also been promu...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2013.05.062
更新日期：2013-10-15 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：:China is a country with one of the highest concentrations of airborne particulate matter smaller than 2.5 μm (PM2.5) in the world, and it has obvious spatial-distribution characteristics. Areas of concentrated population tend to be regions with higher PM2.5 concentrations, which further aggravate the impact of PM2.5 p...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2019.109564
更新日期：2019-12-01 00:00:00
abstract：:Participatory processes in general and also in relation to managing landscape issues are gathering importance mostly due to arguments surrounding legitimacy and effectiveness in decision-making. The main aim of this research, based on a transaction costs perspective, is to present an integrated analytical framework in...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2010.12.005
更新日期：2011-04-01 00:00:00
abstract：:Guangzhou city in South China has experienced an accelerated urban development since the 1980s. This paper examines the impact of the urban development on urban heat islands through a historical analysis of urban-rural air temperature differences. Remote sensing techniques were applied to derive information on land us...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2003.11.006
更新日期：2004-02-01 00:00:00
abstract：:Agave tequilana bagasse is the main solid waste of the tequila manufacturing and represents an environmental issue as well as a potential feedstock for biofuel production due to its lignocellulosic composition and abundance. In this contribution, this feedstock was subjected to pretreatments with HCl and H2SO4 for sug...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2018.07.053
更新日期：2018-10-15 00:00:00
abstract：:The aim of this work is (1) to discuss approaches and tools to set management goals using operational indicators for coastal management (i.e., indicators that are easy to measure, understand and predict) and validated predictive models and (2) to discuss remedial strategies for sustainable coastal management regarding...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2006.12.006
更新日期：2008-02-01 00:00:00
abstract：:The chemical evolution of brines resulting from an inactive phosphogypsum pond derived of fertilizer industry located in Huelva (Spain, SW Europe) has been studied based on a weekly sampling from 2014 to 2017. Long-range time variation of metals and ions concentrations in brines are expected to depend on environmental...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2019.109832
更新日期：2020-01-15 00:00:00
abstract：:Worldwide water quality is degrading and most of the water bodies are now being contaminated by heavy load of pollutants from various industries. Aquatic ecosystems are also disrupted affecting various flora and fauna adversely. Water bodies dominated with aquatic plants have high yielding capacity. These plants are c...
journal_title：Journal of environmental management
pub_type： 杂志文章,评审
doi：10.1016/j.jenvman.2019.109550
更新日期：2019-12-01 00:00:00
