Abstract:
:Galvanizing dross-a waste product from steel industries but it can be a potential secondary resource for zinc through urban mining and recycling. In this concern, a novel and scalable recycling route with zero effluent strategy is developed for the recovery of zinc from galvanizing dross as high grade zinc salts along with value-added products through hydrometallurgical processing. In particular, as-such dross block was leached in 9% (v/v) sulphuric acid medium, wherein strong hydrogen gas effervescence results in alleviating the pulverization and stirring requirements; which are material and energy intensive. Leached zinc is purified and recovered as high purity ZnSO4.(H2O/7H2O) and Zn3(PO4)2.4H2O through controlled crystallization and phosphate precipitation respectively; which find application in fertilizers and anti-corrosive paints. Temperature difference method was opted for the crystallization of zinc sulfate salts, wherein 70 °C and 30 °C were found to be stability range of crystallization of ZnSO4.H2O and ZnSO4.7H2O respectively. ZnSO4-H2O phase diagram is developed using Factsage calculations to corroborate crystallization study. Moreover, exhaustive thermodynamic analysis of Zn2+-PO43--H2O system at 303 K on precipitation of zinc phosphate using di-ammonium hydrogen phosphate (80-240 g/L) is conducted and the results reveal that with increasing pH (3-6), intermediate hydrogen phosphate species (H3PO4, H2PO4- and H2PO42-) decompose to produce stable PO43- ions leading to zinc phosphate precipitation. Impurity like Iron and supernatant solution left after crystallization are recovered as hydrated iron-calcium sulfate mixture and ammonium sulfate salt respectively. This explored route is economical and easily adaptable with zero effluents, therefore, transcends serious challenges in terms of energy requirement, scale-up and effluent generation.
journal_name
J Environ Managejournal_title
Journal of environmental managementauthors
Sinha S,Choudhari R,Mishra D,Shekhar S,Agrawal A,Sahu KKdoi
10.1016/j.jenvman.2019.109985subject
Has Abstractpub_date
2020-02-15 00:00:00pages
109985eissn
0301-4797issn
1095-8630pii
S0301-4797(19)31703-7journal_volume
256pub_type
杂志文章abstract::Many firms generate large amounts of carbon dioxide and other greenhouse gases when they burn fossil fuels in their production processes. In addition, production of raw materials and other inputs the firms procure for their operations also generates greenhouse gases indirectly. These direct and indirect greenhouse gas...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2006.10.002
更新日期:2007-10-01 00:00:00
abstract::Regulatory guidance values are used worldwide to control residential exposure to surface soil contamination. A total of 1,991 values used in 44 United Nations member states plus 4 territories or administrative regions to control exposure to seven polycyclic aromatic hydrocarbons (PAH) generally considered to be carcin...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2012.05.015
更新日期:2012-11-15 00:00:00
abstract::Organobentonites used as absorbents to remove amoxicillin from wastewater have been investigated here because they are effective in removing organic pollutants. It is evident that bentonite modified with hexadecyl trimethyl ammonium (DK1) can effectively remove amoxicillin from aqueous solution. Batch experiments show...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2013.08.032
更新日期:2013-11-15 00:00:00
abstract::In the existing paradigm for waste management, landfills are the final disposal site for waste with no control over the waste being sent to the sites. However, the expanding number of landfills that are at the end of their lifespans and the increasing amount of waste disposed of to landfills have presented a growing n...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2019.01.101
更新日期:2019-07-15 00:00:00
abstract::A method was developed for estimating and mapping flood hazard probability along roads using road and catchment characteristics as physical catchment descriptors (PCDs). The method uses a Geographic Information System (GIS) to derive candidate PCDs and then identifies those PCDs that significantly predict road floodin...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2013.11.032
更新日期:2014-01-15 00:00:00
abstract::Current microalgal based photobioreactors focus on the secondary treated effluent while limited researches attempted for treating the raw domestic wastewater. This study aimed to assess the microalgal biomass production, removal performance, and fouling characteristics of microalgal membrane bioreactors (MMBRs) for tr...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2020.111548
更新日期:2021-01-15 00:00:00
abstract::Conservation agriculture (CA) practices of reduced soil tillage, permanent organic soil coverage and intercropping/crop rotation, are being advocated globally, based on perceived benefits for crop yields, soil carbon storage, weed suppression, reduced soil erosion and improved soil water retention. However, some have ...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2016.09.076
更新日期:2017-06-15 00:00:00
abstract::During the past decades numerous environmental performance evaluation programs have been developed and implemented on different geographic scales. This paper develops a taxonomy of environmental management behavioral patterns in order to provide a practical comparison tool for environmental performance evaluation prog...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2016.07.085
更新日期:2016-11-01 00:00:00
abstract::In order to predict the effects of climate change on the global carbon cycle, it is crucial to understand the environmental factors that affect soil carbon storage in grasslands. In the present study, we attempted to explain the relationships between the distribution of soil carbon storage with climate, soil types, so...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2019.109810
更新日期:2020-01-15 00:00:00
abstract::Laboratory-scale experiments were performed on the dry digestion of solid swine manure in a semi-continuous mode using 4.5 L down plug-flow anaerobic reactors with an organic loading rate of 3.46 kg volatile solids (VS) m(-3) d(-1) to evaluate the effects of temperature (15, 25 and 35 °C). At 15 °C, biogas production ...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2016.04.029
更新日期:2016-07-15 00:00:00
abstract::Large, continuous forest provides critical habitat for some species of forest dependent wildlife. The rapid expansion of shale gas development within the northern Appalachians results in direct loss of such habitat at well sites, pipelines, and access roads; however the resulting habitat fragmentation surrounding such...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2017.03.045
更新日期:2017-07-15 00:00:00
abstract::World trends toward the modern dairies intensification on large production units cause massive animal manure production and accumulation. Improper handling of manure produced by industrial farm operation greatly deteriorates the major environmental media including air, water and soil. The black soldier fly utilizes or...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2017.03.047
更新日期:2017-07-01 00:00:00
abstract::This study analyzed the overall adsorption rate of metronidazole, dimetridazole, and diatrizoate on activated carbons prepared from coffee residues and almond shells. It was also elucidated whether the overall adsorption rate was controlled by reaction on the adsorbent surface or by intraparticle diffusion. Experiment...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2015.12.001
更新日期:2016-03-15 00:00:00
abstract::Current global economic activities are increasingly being perceived as unsustainable. Despite the high number of publications, sustainability science remains highly dispersed over diverse approaches and topics. This article aims to provide a structured overview of sustainability performance evaluation related publicat...
journal_title:Journal of environmental management
pub_type: 杂志文章,评审
doi:10.1016/j.jenvman.2018.03.064
更新日期:2018-07-01 00:00:00
abstract::It is well known that soils are influenced by the plant species that grow in them. Here we consider the effects of management-induced changes to plant communities and their soils during restoration within a 20-year manipulative experiment where the aim was to change a late-successional community dominated by the weed,...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2017.11.013
更新日期:2018-02-01 00:00:00
abstract::Severe environmental and health impacts have been experienced in the Western Lake Erie Basin (WLEB) because of eutrophication and associated proliferation of harmful algae blooms. Efforts to improve water quality within the WLEB have been on-going for several decades. However, water quality improvements in the basin h...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2017.09.063
更新日期:2018-01-01 00:00:00
abstract::The service life of lubricating oil produced in the United Arab Emirates (UAE) was examined using a car fueled with leaded or unleaded gasoline of the same grade in harsh local conditions. In addition, the economic impact of using leaded vs. unleaded gasoline via the effects on the useful life of engine oil was invest...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2006.09.002
更新日期:2007-10-01 00:00:00
abstract::This study assessed the feasibility of an in situ well-based denitrification bio-barrier (WDB) for managing groundwater contaminated with high-strength nitrate. To evaluate the efficacy of WDB using fumarate as a carbon source and/or electron donor, three sequential single-well push-pull tests (SWPPTs) were conducted ...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2019.110004
更新日期:2020-03-15 00:00:00
abstract::Autochthonous halophilic biomass was cultivated in a sequencing batch reactor (SBR) aimed at analyzing the potential use of autochthonous halophilic activated sludge in treating saline industrial wastewater. Despite the high salt concentration (30 g NaCl L-1), biological oxygen demand (BOD) and total suspended solids ...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2017.11.055
更新日期:2018-02-15 00:00:00
abstract::The present study successfully demonstrates greener methodology of hydrodynamic cavitation using rotational flows for disinfection of water. Disinfection of two model microbial strains-gram- negative (Escherichia coli) and gram-positive (Staphylococcus aureus) using vortex diode was evaluated. The removal efficacy was...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2019.04.057
更新日期:2019-07-15 00:00:00
abstract::Sludge is nutrient and mineral rich residue of anaerobic treatment that is often utilized as a fertilizer. Sludge management is crucial to maintain the function of anaerobic treatment lagoons and ensure efficient nutrient utilization. Intensive livestock production has resulted in accumulation of sludge residue in reg...
journal_title:Journal of environmental management
pub_type: 杂志文章,评审
doi:10.1016/j.jenvman.2020.110949
更新日期:2020-10-01 00:00:00
abstract::Fire management agencies in Canada are mandated with protecting multiple forest values from wildfire. Deciding where to reduce fire hazard and how to allocate resources and fire suppression efforts requires an understanding of the values-at-risk from wildfire. The protection of recreation infrastructure is often assum...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2006.10.011
更新日期:2007-10-01 00:00:00
abstract::Traditional olive orchards account for a large share of the area under olives in the EU, particularly in marginal areas, like those analysed in the OLIVERO project. In general, traditional olive growing can be described as a low-intensity production system, associated with old (sometimes very old) trees, grown at a lo...
journal_title:Journal of environmental management
pub_type: 杂志文章,评审
doi:10.1016/j.jenvman.2007.05.024
更新日期:2008-11-01 00:00:00
abstract::The revised Bathing Water Directive (2006/7/EC) requires EU member states to minimise the risk to public health from faecal pollution at bathing waters through improved monitoring and management approaches. While increasingly sophisticated measurement methods (such as microbial source tracking) assist in the managemen...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2015.10.046
更新日期:2016-02-01 00:00:00
abstract::Most chemical companies consume a lot of steam, water and electrical resources in the production process. Given recent record fuel costs, utility networks must be optimized to reduce the overall cost of production. Environmental concerns must also be considered when preparing modifications to satisfy the requirements ...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2009.09.033
更新日期:2010-01-01 00:00:00
abstract::The potential of devolved conservation to empower people, reduce poverty and protect forest resources has yet to be realized in much of the developing world. This is particularly evident in the Philippines where the central state paradoxically recentralizes political power through devolution at the policy, program and...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2009.08.007
更新日期:2009-10-01 00:00:00
abstract::The conversion of poultry litter to hydrochar has been proposed for stabilization of the soils and to eliminate pathogens. Still, research on the hydrochar's effect on soil properties as a function of production temperature, and its direct use with plants is limited in general and even less so on poultry litter. We ch...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2020.110959
更新日期:2020-10-01 00:00:00
abstract::Functional traits reflect plant responses to disturbance, including from visitor impacts. The impacts of mountain biking and hiking on functional composition were compared using a common experimental protocol in a subalpine grassland in the Australian Alps. The overlapping cover of all species was recorded two weeks a...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2015.07.003
更新日期:2015-12-01 00:00:00
abstract::Due to the anaerobic nature of aquatic sediments, the anaerobic treatment of sediments utilizing already present microflora represents an interesting treatment option. Contaminated sediment can contain a variety of organic contaminants, with easily degradable organics usually present in the higher amounts, along with ...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2018.02.029
更新日期:2018-05-15 00:00:00
abstract::This work investigates the production of the native microalgae strain Scenedesmus sp. in semi-continuous mode at lab scale in open raceway-simulating reactors and using centrate as the culture medium. The biomass productivity and nutrient removal capacity of Scenedesmus sp. at different dilution rates were investigate...
journal_title:Journal of environmental management
pub_type: 杂志文章
doi:10.1016/j.jenvman.2018.01.043
更新日期:2018-04-01 00:00:00