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Book
Environmental Sustainability of Current Waste Management Practices
Authors: --- ---
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Environmentally sustainable and economic waste management is of significant importance to various fields, including the healthcare, mining, industrial, metal-processing, municipal and commercial sectors. This book provides a global perspective and covers a wide range of state-of-the-art topics on waste management, recycling, material and energy recovery, industrial waste, etc. Information in the form of in-depth reviews and research articles will be a valuable resource for academics, professionals and regional as well as international organizations.


Periodical
Resources, conservation & recycling advances.
ISSN: 26673789 Year: 2021 Publisher: [Amsterdam] : Elsevier B.V.,

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Book
Medicinal Plants and Foods
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Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Medicinal plants or medicinal herbs have been identified and used since ancient times to improve the sensory characteristics of food. The main compounds found in plants correspond to four major biochemical classes: Polyphenols, terpenes, glycosides and alkaloids. Plants synthesize these compounds for a variety of purposes, including protection of the plant against fungi and bacteria, defense against insects and attraction of pollinators and dispersal agents to favor the dispersion of seeds and pollens.

Développement durable de l'agriculture urbaine en Afrique francophone : Enjeux, concepts et méthodes.
Authors: --- --- ---
ISBN: 2876145510 1552501345 128071767X 9786610717675 9781552501344 9782876145511 Year: 2004 Publisher: Montpellier : Ottawa : Cirad ; Crdi,

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Les pays en développement vont connaître dans les années à venir une explosion démographique, qui sera particulièrement sensible dans les villes. La production alimentaire devra doubler dans les trente prochaines années et, parallèlement, la production de déchets et d'effluents sera multipliée par quatre. L'agriculture urbaine, qui utilise les ressources de la ville et approvisionne ses marchés, peut apporter des réponses à ces défis alimentaires et écologiques. Mais elle est souvent négligée par les chercheurs comme par les responsables locaux, qui se trouvent démunis fac à son caractère dyn

Keywords

Agriculture périurbaine --- Suburban agriculture --- Classification --- classification --- Relation ville campagne --- Rural urban relations --- Jardin familial --- Domestic gardens --- Élevage --- animal husbandry --- Méthode d'élevage --- animal husbandry methods --- Ressource alimentaire --- Food resources --- Élimination des déchets --- Waste disposal --- Gestion des déchets --- Waste management --- Utilisation des déchets --- Waste utilization --- Sénégal --- Senegal --- Cameroon --- Democratic Republic of the Congo --- Gabon --- Sustainable agriculture --- Agriculture --- Low-input agriculture --- Low-input sustainable agriculture --- Lower input agriculture --- Resource-efficient agriculture --- Sustainable farming --- Alternative agriculture --- Urban agriculture --- CIRAD (Organization) --- Urban farming --- Land use, Urban --- C.I.R.A.D. --- Centre de coopération internationale en recherche agronomique pour le développement --- Centre for International Cooperation in Agronomical Research for Development --- Centre international de recherche en agronomie pour le développement --- Centro de Cooperação Internacional de Pesquisa Agronômica para o Desenvolvimento --- Centro de Cooperação Internacional em Pesquisa Agronômica para o Desenvolvimento --- Centro de Cooperación Internacional en Investigación Agronómica para el Desarrollo --- International Co-operation Centre of Agricultural Research for Development --- Trung tâm hợp tác quó̂c té̂ vè̂ nghiên cứu nông nghiệp cho phát triẻ̂n --- France. --- classification. --- Senegal.


Book
Sustainable Utilization of Metals: Processing, Recovery and Recycling
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ISBN: 3039288865 3039288857 Year: 2020 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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The high demand for advanced metallic materials raises the need for an extensive recycling of metals and such a sustainable use of raw materials. ""Sustainable Utilization of Metals - Processing, Recovery and Recycling"" comprises the latest scientific achievements in efficient production of metals and such addresses sustainable resource use as part of the circular economy strategy. This policy drives the present contributions, aiming on the recirculation of EoL-streams such as Waste Electric and Electronic Equipment (WEEE), multi-metal alloys or composite materials back into metal production. This needs a holistic approach, resulting in the maximal avoidance of waste. Considering both aspects, circular economy and material design, recovery and use of minor metals play an essential role, since their importance for technological applications often goes along with a lack of supply on the world market. Additionally, their ignoble character and low concentration in recycling materials cause an insufficient recycling rate of these metals, awarding them the status of “critical metals”. In order to minimize losses and energy consumption, this issue explores concepts for the optimization concerning the interface between mechanical and thermal pre-treatment and metallurgical processes. Such new approaches in material design, structural engineering and substitution are provided in the chapters.

Keywords

n/a --- tramp element --- reuse --- titanium recovery --- smartphone --- electrolytic manganese --- chemical equilibrium diagram --- thermodynamics --- displays --- selective extraction --- negative activation energy --- rare earths --- precipitation --- yttrium --- melting behavior --- zinc --- Bayer process --- silver leaching --- lanthanum --- steel scrap --- waste utilization --- super-gravity --- solvent extraction --- scandium --- magnesium --- gravity separation --- dynamic material flow model --- electrolytic lodes and scrapings --- enrichment of Ti --- ammonium scandium hexafluoride --- carbothermal reduction --- simultaneous recovery --- karst bauxite --- fines --- vanadium --- silver --- oxygen-depolarized cathodes --- ionic liquids --- flotation --- steelmaking dust --- aluminium purification --- zinc recycling --- physical separation --- manganese --- intermetallic formation --- gold --- aluminum alloy --- copper --- slag valorization --- reduction of Co --- NMC batteries --- process development --- REE–Nb–Fe ore --- bauxite residue --- hydrometallurgy --- Zinc --- polythermal section --- alkaline leaching --- electric arc furnace --- neodymium --- environmentally friendly process --- electrodeposition --- volatilization --- characterization --- rheorefining --- Li-ion battery --- anti-solvent crystallization --- basic oxygen furnace --- Bayan Obo --- selective precipitation --- pyrolysis --- WPCBs --- cold-bonded briquettes --- separation --- battery pre-treatment --- dysprosium --- dust --- metal recovery --- pyrometallurgy --- thermal treatment --- jarosite --- lifetime of steel --- leaching --- rare-earths --- sustainable development --- industry sector --- closed-loop circulation --- circular economy --- iron removal --- kinetics --- polishing waste --- material flow analysis --- cerium --- rare earth elements --- recycling potential --- halogenation --- ultra-high purity --- cryogenic pre-treatment --- Tin recovery --- refining --- WPCB --- desulfurization --- spent catalysts --- trace elements --- dimethyl sulfoxide --- vacuum distillation --- industrial residue --- condensation --- glass polishing waste --- flash smelting --- red mud --- microwave assisted pyrolysis --- NdFeB magnets --- cavitation --- sludge --- cementation --- indium --- metallurgy --- recycling --- gallium --- copper removal --- jarosite residue --- preparation for recovery --- laterites --- scandium recovery --- blast furnace --- circulation --- recycling rate --- REE-Nb-Fe ore


Book
Green Low-Carbon Technology for Metalliferous Minerals
Author:
ISBN: 3036557989 3036557970 Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Metalliferous minerals play a central role in the global economy. They will continue to provide the raw materials we need for industrial processes. Significant challenges will likely emerge if the climate-driven green and low-carbon development transition of metalliferous mineral exploitation is not managed responsibly and sustainably. Green low-carbon technology is vital to promote the development of metalliferous mineral resources shifting from extensive and destructive mining to clean and energy-saving mining in future decades. Global mining scientists and engineers have conducted a lot of research in related fields, such as green mining, ecological mining, energy-saving mining, and mining solid waste recycling, and have achieved a great deal of innovative progress and achievements. This Special Issue intends to collect the latest developments in the green low-carbon mining field, written by well-known researchers who have contributed to the innovation of new technologies, process optimization methods, or energy-saving techniques in metalliferous minerals development.

Keywords

Technology: general issues --- History of engineering & technology --- Mining technology & engineering --- metallurgical slag-based binders --- solidification/stabilisation --- As(III) --- As(V) --- calcium hydroxide --- sublevel caving --- numerical simulation --- physical model --- structural parameter --- green mining --- limestone --- high temperature --- confining pressure --- SHPB --- constitutive model --- open-pit mine --- PLAXIS 3D --- dynamic load --- safety factor --- acceleration --- particle sedimentation --- filling mining --- degree of influence --- pipeline transportation --- solid waste utilization --- tailings --- reclamation risk --- hazard identification --- complex network --- hazard management --- digital mine --- mine short-term production planning --- haulage equipment dispatch plan --- ABCA --- NSGA --- settlement velocity measurement --- K-means --- tailings backfill --- unsupervised learning --- cemented paste backfill --- ESEM --- picture processing --- floc networks --- pumping agent --- fractal dimension --- backfill slurry --- strength of cemented backfill --- inhomogeneity of cemented backfill --- cemented tailings backfill --- copper --- zinc --- recovery --- sulfide concentrate --- artificial microbial community --- granular backfill --- bearing characteristics --- numerical model --- particle size --- surface subsidence --- blasting dust movement --- dust concentration --- particle size distribution --- blasting dust reduction --- backfill --- metal mine --- log-sigmoid --- tailings pond --- regional distribution --- dam break --- accident statistics --- causation analysis --- backfilling --- increasing resistance and reducing pressure --- computational fluid dynamics --- spiral pipe --- stowing gradient --- coal-based solid waste --- orthogonal experiment --- strength development --- regression analysis --- engineering performance --- n/a


Book
Sustainable Recycling Techniques of Pavement Materials
Authors: --- --- --- ---
ISBN: 3036562001 3036561994 Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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This book focuses on experimental and applied research on sustainable recycling techniques for pavement materials. The recycling of waste materials in pavement infrastructures could be successfully facilitated based on such techniques. Sustainability in civil engineering has attracted more attention in recent decades, the lack of natural resources, serious environmental pollution, and high carbon dioxide emissions are the main issues regarding traditional infrastructure materials. This book provides the most recent innovations and applications of recycling wastes as high-performance pavement materials, aiming to provide methods for producing green low-carbon and durable pavement structures. In particular, several treatment methods and 3D construction techniques are proposed for the efficient recycling of waste materials.

Keywords

Technology: general issues --- History of engineering & technology --- lignin --- waste engine oil --- modified asphalt --- high-temperature performance --- low-temperature performance --- recycled waste plastic --- asphalt binder and mixture --- composite modification --- performance --- compatibility --- asphalt mortar --- asphalt mixture --- fly ash --- high temperature performance --- low temperature property --- moisture susceptibility --- coarse aggregate --- 3D printing --- natural aggregate --- cement-based aggregate --- sustainable construction --- building demolition waste --- unbound granular materials --- shear strength --- resilient modulus --- gradation --- prediction model --- porous asphalt pavement --- high-viscosity modified asphalt --- functional group index --- aging kinetics --- 3D concrete printing --- curing conditions --- mechanical capacity --- solid waste --- anisotropy --- sustainability --- dredged sediment --- cement-stabilized --- NMR --- permeability --- strength --- pore structure --- water transformation --- cement stabilized soil --- fiber-reinforced soil --- mechanical strength --- waste utilization --- Back Propagation Neural Network --- Random Forest --- beetle antennae search --- diversion tunnel --- corrosion --- cement-based materials --- carbonation --- experimental study --- steel slag --- oxalic acid --- expansion --- water erosion --- road performance --- influence mechanism --- road engineering --- stability --- molecular dynamic --- bio-oil asphalt/water emulsion --- particle size --- infrared spectrum analysis --- asphalt pavement --- seashell powder --- high- and low-temperature performance --- water stability --- n/a


Book
Recycling and Resource Recovery from Polymers
Authors: --- ---
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Environmental challenges posed by wrong end of lifeplastic management drive the plastics recycling schemes for energy recovery and cutting emissions, penalties, energy consumption, non-renewable resources, and manufacturing costs. Plastic recycling has the lowest environmental impact on global warming potential and total energy use. However, under-utilised plastic wastes due to low value issues with sorting/contamination pose major challenges. Novel technologies drive innovation in a circular economy model for plastics and employ reuse, recycling and responsible manufacture solutions, support the development of new industries and jobs, reduce emissions and increase efficient use of natural resources (including energy, water and materials). Many economies are working towards achieving a zero plastic waste economy. This Special Issue covers the applications of recycled plastics in the areas of energy recovery/alternative fuels, economic analyses, bitumen additives, flame retardants, recycled polymer nanocomposites to enhance the mechanical property, thermomechanical recycling to improve physical properties, mechano-chemical treatment, cryogenic waste tyre recycling, application in decarbonizing technology, e.g., cement industry, waste characterization, improving agricultural soil quality, as smart fertilizers. The Editors express their appreciation to all the contributors across the world in the development of this reprint. This reprint gives different perspectives and technical ideas for the transformation of plastic wastes into value-added products and to achieve higher recycling rates in the coming years.

Keywords

lignin --- bituminous modifier --- lignin modified bitumen --- chemical analysis --- rheological behavior --- mechanical properties --- road engineering --- open graded friction course --- viscoelastic properties --- creep compliance --- relaxation modulus --- dynamic modulus --- linear correlation --- polymer-modified asphalt --- Hamburg wheel-tracking --- indirect tensile strength --- co-pyrolysis --- synergy --- kinetics --- plastic waste --- animal manure --- cement decarbonization --- waste utilization --- co-pyro-gasification --- carbon conversions --- non-soot catalysts --- clean energy --- polymer --- rubber --- recycling --- cryoagent --- liquid nitrogen --- waste tire --- thermal conductivity --- post-consumer waste --- mechanical recycling --- polyethylene --- polypropylene --- contamination --- composition --- tensile properties --- impact properties --- compatibilisation --- polymer based post-consumer waste --- mechano-chemical treatment --- ball milling --- thiol-ene --- carbon nanotubes --- polysilicone --- functionalization --- flame retardancy --- dispersion --- epoxy resin --- silicone --- thermal degradation --- activation energy --- poly (l-lactic acid) --- poly (3-hydroxybutyrate-co-3-hydroxyvalerate) --- non-isothermal crystallisation kinetics --- circular economy --- circo-economics --- material circularity indicator --- packaging --- recycled opaque PET --- reactive extrusion --- chain extension --- long-chain branching --- polyethylene-modified bitumen --- wax-based additives --- rutting --- linear viscoelastic properties --- combustion --- automotive shredder residue --- solid recovered fuel --- alternative fuels --- sustainable energy --- waste-to-energy --- n/a

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