4.5 Review

Status of Coal-Based Thermal Power Plants, Coal Fly Ash Production, Utilization in India and Their Emerging Applications

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Environmental Sciences

Isolation and Characterization of Siderophores Producing Chemolithotrophic Bacteria from the Coal Samples of the Aluminum Industry

Deepak Singh et al.

Summary: Siderophores are important for their ability to scavenge iron and make it accessible to cells. This study isolated and characterized two bacteria strains capable of producing siderophores from coal samples. The strains were identified as Bacillus sp. and Vibrio sp. These strains have potential applications in industries and research.

GEOMICROBIOLOGY JOURNAL (2023)

Article Materials Science, Multidisciplinary

A Noble and Economical Method for the Synthesis of Low Cost Zeolites From Coal Fly Ash Waste

Virendra Kumar Yadav et al.

Summary: Fly ash, a major global pollutant, was successfully transformed into zeolite product through acid and alkali treatment in this study. The confirmation of the final product's nature and structure was achieved through various analytical methods, providing a new approach for the safe and environmentally friendly disposal of fly ash waste.

ADVANCES IN MATERIALS AND PROCESSING TECHNOLOGIES (2022)

Article Chemistry, Applied

Remediation of Azure A Dye from Aqueous Solution by Using Surface-Modified Coal Fly Ash Extracted Ferrospheres by Mineral Acids and Toxicity Assessment

Virendra Kumar Yadav et al.

Summary: Indian coal fly ash can be used to recover ferrous particles through wet magnetic separation. The extracted ferrous particles are spherical in shape, with varying sizes and a crystalline structure consisting of a mixture of hematite and magnetite. Surface-modified ferrospheres show potential as an economical and reusable adsorbent for dye remediation.

ADSORPTION SCIENCE & TECHNOLOGY (2022)

Article Thermodynamics

Effects of exhaust tube vortex on the in-furnace phenomena in a swirl-stabilized pulverized coal flame

Minsung Choi et al.

Summary: This paper presents an experimental investigation on the effects of the exhaust tube vortex (ETV) on pollutant emissions and carbon burnout performance. The results show that under the co-swirl condition, the ETV structure can reduce CO emissions and improve carbon burnout performance. Among the air staging positions, position 3 maintains the ETV structure in the primary combustion zone better and results in the lowest CO emissions, relatively low NOx emissions, and the highest carbon burnout performance.

ENERGY (2022)

Article Green & Sustainable Science & Technology

Assessment of the structure, composition, and agrochemical properties of fly ash and ash-and-slug waste from coal-fired power plants for their possible use as soil ameliorants

A. D. Kotelnikova et al.

Summary: Coal combustion byproducts, such as fly ash, bottom ash, and ash and slag waste, have potential for application as soil ameliorants. This research investigated the possibility of using fly ash and bottom ash as soil ameliorants and assessed their impact on soil quality indicators. The findings suggest that these waste materials can help normalize soil acidity and contribute to agrophysically valuable aggregates. Moreover, the concentration of potentially toxic elements in the ash and slag waste samples did not exceed legislatively established standards, indicating their safety for use.

JOURNAL OF CLEANER PRODUCTION (2022)

Article Engineering, Environmental

Synthesis of nano-crystalline zeolite-A and zeolite-X from Indian coal fly ash, its characterization and performance evaluation for the removal of Cs+ and Sr2+ from simulated nuclear waste

Mahima Kumar Murukutti et al.

Summary: Phase pure zeolite-A and zeolite-X were successfully synthesized using coal fly ash obtained from Indian thermal power plants through alkali fusion method followed by hydrothermal technique. The zeolites showed high specific surface area and excellent ion exchange capacity, making them suitable for adsorbing pollutants.

JOURNAL OF HAZARDOUS MATERIALS (2022)

Article Environmental Sciences

Early solidification/stabilization mechanism of heavy metals (Pb, Cr and Zn) in Shell coal gasification fly ash based geopolymer

Yuchi Chen et al.

Summary: The use of SFA-based geopolymer for immobilizing heavy metals from MSWIFA can effectively address energy and environmental challenges. The early immobilization mechanisms involve heavy metals retention in aluminosilicates, trapping of Pb and Zn by gel structure, as well as reduction of Cr and its involvement in geopolymerization process.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

Article Green & Sustainable Science & Technology

Why do some countries receive more international financing for coal-fired power plants than renewables? Influencing factors in 23 countries

Achmed Edianto et al.

Summary: The construction of new coal-fired power plants continues globally, posing a threat to climate change mitigation efforts. Developing countries heavily rely on public finance from richer nations due to high costs and technological barriers, with recent financing favoring coal-fired electricity over renewables. This study examines 23 countries and identifies two combinations of factors that explain why some countries receive more investment for coal plants than renewables. The factors include bilateral agreements promoting coal industry development, weak or absent carbon pricing, and weak policy support for renewable energy. The findings have significant policy implications.

ENERGY FOR SUSTAINABLE DEVELOPMENT (2022)

Article Economics

The effect of foreign investment on Asian coal power plants

Qinrui Xiahou et al.

Summary: Asia has constructed a large portion of new coal power plants in the past 20 years with significant foreign investment. A study finds that foreign-funded coal power plants have, on average, 3.4% lower carbon dioxide emissions intensity compared to domestically funded plants, mainly due to better technology and cleaner coal. However, this foreign investment does not significantly impact the performance of domestically funded plants. Despite reducing CO2 emissions per unit of electricity, foreign investment in coal power plants increases global reliance on coal and undermines global efforts to reduce greenhouse gas emissions.

ENERGY ECONOMICS (2022)

Review Green & Sustainable Science & Technology

Fly ash application in soil for sustainable agriculture: an Indian overview

Ayushi Varshney et al.

Summary: Fly ash, a challenging solid waste generated from coal combustion, has caused various environmental problems worldwide. However, it has been recognized as a valuable material for soil amendment in agriculture as it improves the physical and chemical properties of soil and enhances crop growth. This review explores the Indian scenario of fly ash incorporation in different soils for improved crop production and sustainable agriculture.

ENERGY ECOLOGY AND ENVIRONMENT (2022)

Article Energy & Fuels

A sustainable method for germanium, vanadium and lithium extraction from coal fly ash: Sodium salts roasting and organic acids leaching

Homa Rezaei et al.

Summary: This paper proposed an environmentally friendly process for recovering germanium, lithium, and vanadium from coal fly ash (CFA) using thermal pretreatment and hydrometallurgy. Three sets of experiments were conducted to screen parameters, optimize the dissolution process, and model the kinetics. The results showed that acid type had the most significant effect on the leaching process, while the salt/CFA ratio had the least effect on metal recoveries. The optimum conditions for maximum recoveries were determined using response surface methodology. Kinetic modeling revealed that interfacial transfer and diffusion across the product layer controlled the leaching kinetics.
Article Environmental Sciences

Heavy Metal Removal from Aqueous Solutions Using Fly-Ash Derived Zeolite NaP1

Archibald Frank Ankrah et al.

Summary: Fly-ash derived zeolites are effective adsorbents for removing heavy metals from water, with high adsorption capacity and selectivity.

INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH (2022)

Article Chemistry, Physical

Unraveling the role of agro waste-derived graphene quantum dots on dielectric and mechanical property of the fly ash based polymer nanocomposite

Ashish Kumar Chaturvedi et al.

Summary: Crystalline graphene quantum dots (GQDs) were prepared using agro waste of paddy straw, and GQDs reinforced fly ash polymer nanocomposites were fabricated for the first time. The nanocomposites exhibited significant improvements in dielectric constant and flexural strength, which were attributed to the increased electric dipoles and improved interfacial and chemical bonding between the GQDs and fly ash and epoxy.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

Article Chemistry, Physical

Tensile Strength of Class F Fly Ash and Fly Ash with Bentonite Addition as a Material for Earth Structures

Mariola Wasil et al.

Summary: This study investigated the influence of bentonite addition on the plastic properties of compacted fly ash. The results showed that bentonite significantly affects the tensile strength of fly ash, and the addition of bentonite can improve the tensile strength of fly ash.

MATERIALS (2022)

Review Chemistry, Applied

Trends and advances in the development of coal fly ash-based materials for application in hydrogen-rich gas production: A review

Kang Gao et al.

Summary: This review explores the potential utilization of coal fly ash in catalytic and sorption processes to promote sustainable development and reduce solid waste. Coal fly ash offers attractive opportunities as catalysts and sorbents for hydrogen production, however, high processing costs present a challenge in achieving this goal.

JOURNAL OF ENERGY CHEMISTRY (2022)

Review Energy & Fuels

A review on natural gas ecosystem in India: Energy scenario, market, pricing assessment with the developed part of world and way forward

Mousumi Nandi et al.

Summary: This paper reviews the natural-gas ecosystem in India through a statistical outlook, presenting the current status of natural gas in India, comparing it with major players like China and Russia in terms of energy and economy. It examines gas allocation and pricing systems, highlights the existing problems, and discusses policy options, challenges, recommendations, and future prospects for India's vision of increasing the contribution of natural gas in the primary energy mix.

JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING (2022)

Article Construction & Building Technology

Assessment of environmental and chemical properties of coal ashes including fly ash and bottom ash, and coal ash concrete

Mahdi Rafieizonooz et al.

Summary: Coal power plant wastes and coal ash concrete have the potential to replace cement and fine aggregate, allowing for the production of sustainable and environmentally friendly concrete with reduced cost and natural resource utilization.

JOURNAL OF BUILDING ENGINEERING (2022)

Article Biochemistry & Molecular Biology

Biological Activity of Picrorhiza kurroa: A Source of Potential Antimicrobial Compounds against Yersinia enterocolitica

Anju Thapa et al.

Summary: Yersiniosis, a zoonotic disease caused by Yersinia enterocolitica, is prevalent in Europe and known for its high antibiotic resistance. This study evaluated the antimicrobial activity of an extract from Picrorhiza kurroa against Yersinia enterocolitica. The extract showed effective antimicrobial activity and potential bioactive compounds were identified. Picroside-1 exhibited higher antimicrobial potential and lysed Yersinia enterocolitica cells. Docking analysis revealed its interaction with the dihydrofolate reductase protein, suggesting it as a possible drug candidate for Yersinia enterocolitica.

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (2022)

Article Energy & Fuels

Amelioration of acidic soil using fly Ash for Mine Revegetation in Post-Mining Land

Akihiro Hamanaka et al.

Summary: This paper discusses the use of fly ash for soil amelioration of acidic soils to promote plant growth. The results show that moderate addition of fly ash can improve plant growth, but the impact on metal ions leached from acidic soils needs to be considered.

INTERNATIONAL JOURNAL OF COAL SCIENCE & TECHNOLOGY (2022)

Review Environmental Sciences

Deleterious Effect of Air Pollution on Human Microbial Community and Bacterial Flora: A Short Review

Nishant Gupta et al.

Summary: Air pollution can disrupt the composition of various microbiotas in the human body and potentially pose health risks to multiple organs.

INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH (2022)

Article Chemistry, Physical

Construction of Pingdingshan coal molecular model based on FT-IR and 13C-NMR

Zha Wei et al.

Summary: The microscopic structure of coal samples from the Pingdingshan mining area in China was studied using FT-IR and C-13-NMR, and a periodic structure model of coal was constructed based on molecular mechanics and molecular dynamics. The model was found to accurately represent the structural information of the coal sample, and the simulated methane adsorption curves showed good agreement with the experimental results.

JOURNAL OF MOLECULAR STRUCTURE (2022)

Review Energy & Fuels

Coal fly ash: an emerging material for water remediation

N. B. Singh et al.

Summary: Coal fly ash, a byproduct of thermal power plants, is a versatile material with applications in environmental remediation and water treatment. Its physical and chemical properties make it an effective material for wastewater treatment, and it can also be converted into adsorbents and photocatalysts.

INTERNATIONAL JOURNAL OF COAL SCIENCE & TECHNOLOGY (2022)

Article Construction & Building Technology

Application of ternary cementless hybrid binders for pervious concrete

Kae-Long Lin et al.

Summary: In this study, alkali-free activator-type ternary cementless binders were developed using GGBS, CFA, and DG. The addition of CFA increased the setting times, while DG shortened the setting time. By adjusting the proportions, the optimum compressive strength and setting times can be achieved.

CONSTRUCTION AND BUILDING MATERIALS (2022)

Article Construction & Building Technology

Coal bottom ash concrete: Mechanical properties and cracking mechanism of concrete subjected to cyclic load test

Abdul Muiz Hasim et al.

Summary: This study investigates the mechanical properties and cracking mechanism of concrete containing coal waste. The results show that the use of coal waste in concrete reduces splitting tensile and flexural strengths. The failure of beams is mainly influenced by the porous structure and high crushing index of coarse coal waste.

CONSTRUCTION AND BUILDING MATERIALS (2022)

Article Thermodynamics

Comparative thermal analysis of coal fuels, biomass, fly ash and polyamide

Agnieszka Kijo-Kleczkowska et al.

Summary: This paper presents a comparative analysis of different fuels and waste materials using thermal analysis techniques. The aim is to explore the potential use of these materials in polymer composites, thermal co-utilization, and energy recovery. The results show that changes in DSC, TG, and DTG values are mainly influenced by the composition of the materials. Quartz sand with organic substance and fly ash exhibit the lowest exothermic effects, while coal has the highest carbon content and calorific value.

ENERGY (2022)

Article Energy & Fuels

Coal fly ash activated by NaOH roasting: Rare earth elements recovery and harmful trace elements migration

Guoqiang Wu et al.

Summary: Coal fly ash (CFA) is considered an important alternative resource for rare earth elements (REEs) and other critical metals, but concerns about the migration and transformation of harmful trace elements (HTEs) are crucial. Research showed that during the recovery of REEs from CFA activated by NaOH roasting, HTEs were transformed into compounds that were easier to be leached out, providing insights into the behavior of these elements during the recovery process.
Review Nanoscience & Nanotechnology

Recent Advances in Methods for Synthesis of Carbon Nanotubes and Carbon Nanocomposite and their Emerging Applications: A Descriptive Review

Amel Gacem et al.

Summary: Nanomaterials, specifically carbon nanotubes and carbon nanocomposite materials, have gained significant attention in various industries due to their wide applications in electronics, medicine, research, and environmental cleanup. This review article focuses on the synthesis methods and controlled organization and assembly of nanotube materials, as well as the potential of agrowaste and industrial waste in the synthesis of nanomaterials.

JOURNAL OF NANOMATERIALS (2022)

Article Environmental Sciences

Green Synthesis and Characterization of LED-Irradiation-Responsive Nano ZnO Catalyst and Photocatalytic Mineralization of Malachite Green Dye

Brijesh Pare et al.

Summary: The green synthesis of ZnO nanoparticles was successfully achieved and characterized in this study. The synthesized nanoparticles showed desirable photocatalytic activity for the remediation of malachite green from aqueous solutions under LEDs irradiation.
Review Environmental Sciences

A Recent and Systemic Approach Towards Microbial Biodegradation of Dyes from Textile Industries

Heli Patel et al.

Summary: The textile industry produces synthetic dyestuffs that pose a threat to the environment, with azo dyes being the most commonly used. Current effluent treatment methods cannot effectively remove these dyes, but bacteria can decolourize and degrade them. However, textile plant wastewater can contain other pollutants and dyes. This study aims to fill the knowledge gap in dye remediation and provide the latest trends, which is important for industries and researchers involved in dyestuffs.
Proceedings Paper Materials Science, Multidisciplinary

Effectiveness of fly ash, zeolite, and unburnt rice husk as a substitute of cement in concrete

Mahadeb Das et al.

Summary: This experimental study analyzed the effects of unburnt rice husk, fly ash, and zeolite on the strength of concrete with added glass powder. The results showed that increasing the concentration of glass powder decreased the compressive strength of the concrete. Additionally, using unburnt rice husk, fly ash, and zeolite powder as replacements for cement, in combination with glass powder, further decreased the compressive strength of the concrete.

MATERIALS TODAY-PROCEEDINGS (2022)

Article Construction & Building Technology

Application of ternary cementless hybrid binders for pervious concrete

Kae-Long Lin et al.

Summary: Alkali-free activator-type ternary cementless binders were developed using GGBS, CFA, and DG. The addition of CFA increased the setting times, while DG promoted the production of AFt and increased compressive strength. The optimum proportion for setting times was 70% GGBS, 25% CFA, and 5% DG, achieving a maximum compressive strength of 79% of the cement group.

CONSTRUCTION AND BUILDING MATERIALS (2022)

Article Environmental Sciences

Co-sintering MSWI fly ash with electrolytic manganese residue and coal fly ash for lightweight ceramisite

Xinyuan Zhan et al.

Summary: The study discussed the co-recycling of MSWI fly ash, electrolytic manganese residue, and other materials to produce lightweight ceramisites, determining the optimal mixture and sintering conditions. It also explored the volatilization rates and residual fractions of heavy metals in the ceramisites, providing a feasible method for producing green lightweight aggregates.

CHEMOSPHERE (2021)

Article Chemistry, Applied

Experimental and Computational Approaches for the Structural Study of Novel Ca-Rich Zeolites from Incense Stick Ash and Their Application for Wastewater Treatment

Virendra Kumar Yadav et al.

Summary: In this study, a novel method for synthesizing Ca-based zeolite from incense stick ash waste through alkali-treatment was reported for the first time. Characterization of the synthesized zeolites using various instruments confirmed their microstructure, crystalline nature, and aggregation properties. Computational simulations were utilized to evaluate structural, electronic, and density of states' characteristics of the zeolite structures. The research demonstrated the potential of transforming incense stick ash waste into value-added mineral for wastewater treatment.

ADSORPTION SCIENCE & TECHNOLOGY (2021)

Article Economics

Implication of emission regulation on cost and tariffs of coal-based power plants in India: A system modelling approach

Roshna Nazar et al.

Summary: Coal-based thermal power plants are a major contributor to deteriorating air quality globally. The Indian government revised emission standards for these plants in 2015, but high upfront costs have caused delays in implementation. A total investment of $59 billion is needed to meet the new standards, leading to a 9%-25% increase in electricity tariffs. Challenges in installing and operating the new controls are also identified.

ENERGY POLICY (2021)

Article Construction & Building Technology

Green reaction-type nucleation seed accelerator prepared from coal fly ash ground in water environment

Jin Yang et al.

Summary: The novel WFA seed, prepared from coal fly ash, significantly enhances the compressive strength and hydration process of Portland cement. It also improves the microstructure of cement by increasing the main chain length and Al/Si ratio of C-S-H gel while refining the pore structure.

CONSTRUCTION AND BUILDING MATERIALS (2021)

Article Energy & Fuels

Studies on the CO2 Capture by Coal Fly Ash Zeolites: Process Design and Simulation

Silviya Boycheva et al.

Summary: Currently, reducing carbon emissions from energy production and industrial processes is crucial to limit climate change. Research suggests that coal fly ash zeolites could be cost-effective adsorbents for CO2 capture, but further studies are needed to determine their applicability on a pilot and industrial scale.

ENERGIES (2021)

Review Crystallography

Recent Advances in Methods for the Recovery of Carbon Nanominerals and Polyaromatic Hydrocarbons from Coal Fly Ash and Their Emerging Applications

Javed Alam et al.

Summary: Coal fly ash is a key pollutant worldwide due to its toxic heavy metal content, but advancements in technology have led to its importance in emerging fields. Recovering carbonaceous nanoparticles from coal fly ash using trending techniques allows for the development of carbon-derived value-added materials and nanocomposites in various industries. The latest applications of carbon particles from coal fly ash are emphasized in industry.

CRYSTALS (2021)

Review Construction & Building Technology

Fly ash-based eco-friendly geopolymer concrete: A critical review of the long-term durability properties

Mugahed Amran et al.

Summary: Fly ash (FA) is widely available globally and can be used to produce green concrete with high strength and durability, making it environmentally friendly.

CONSTRUCTION AND BUILDING MATERIALS (2021)

Article Construction & Building Technology

Properties of mortar and pervious concrete with co-utilization of coal fly ash and waste glass powder as partial cement replacements

Sangchul S. Hwang et al.

Summary: By optimizing the composition of cement mortar mix, the study produced pervious concrete with good flowability and high compressive strength. The use of prediction models identified the impact of coal fly ash and milled waste glass powder on the properties of the mixture, demonstrating that the co-utilization of waste materials FA and GP can enhance the rate and extent of compressive strength development.

CONSTRUCTION AND BUILDING MATERIALS (2021)

Article Environmental Sciences

Variations and similarities in structural, chemical, and elemental properties on the ashes derived from the coal due to their combustion in open and controlled manner

Virendra Kumar Yadav et al.

Summary: Coal fly ash (CFA) and coal-based incense sticks ash (ISA) have similarities and differences due to the presence of coal, with CFA generated from coal combustion in thermal power plants and ISA from incense sticks burning. Analysis showed that CFA contains well-organized spherical particles while ISA particles are irregular and aggregated, with different mineral compositions and structures.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2021)

Article Engineering, Chemical

Mining value from waste: Scandium and rare earth elements selective recovery from coal fly ash leach solutions

Mehdi Mostajeran et al.

Summary: Global demand for rare earth elements (REEs) has increased due to rapid technological advancements, leading to attention on recovery from secondary sources. Selective separation techniques like ion exchange are required to overcome challenges in recovering REEs with low metal concentration from mine wastes and tailings. This study demonstrates the first attempt at selective recovery of Sc from coal fly ash using ion exchange separation technique.

MINERALS ENGINEERING (2021)

Article Materials Science, Ceramics

Geopolymerization of class C fly ash: Reaction kinetics, microstructure properties and compressive strength of early age

Rosnita Mohamed et al.

Summary: This study aims to elucidate the geopolymerization of Class C fly ash at different solid-to-liquid ratios through heat evolution analysis. The nucleation mechanism was found to be governed by heterogeneous nucleation with rod-like growth. A solid-to-liquid ratio of 2.5 was identified as optimal, with the contribution of calcium and iron confirmed through various analyses.

JOURNAL OF NON-CRYSTALLINE SOLIDS (2021)

Article Multidisciplinary Sciences

Energy use and the role of per capita income on carbon emissions in African countries

Bosede Ngozi Adeleye et al.

Summary: The study found that energy use has a significant impact on carbon emissions, but per capita income can attenuate this impact. There are differences across sub-regions, and African countries face a dilemma in balancing economic growth and reducing carbon emissions, suggesting more investment in renewable energy.

PLOS ONE (2021)

Article Chemistry, Physical

Preparation of Synthetic Zeolites from Coal Fly Ash by Hydrothermal Synthesis

David Langauer et al.

Summary: This paper explores the zeolitization process of coal fly ash and the synthesis of various zeolite phases through hydrothermal treatment, optimizing the best conditions such as NaOH concentration, silica-alumina ratio, temperature, and processing time.

MATERIALS (2021)

Article Engineering, Environmental

Mechanochemical stabilization of heavy metals in fly ash from coal-fired power plants via dry milling and wet milling

Qixin Yuan et al.

Summary: Fly ash from coal-fired power plants is a major solid waste pollutant globally, and the mechanochemical method is effective in stabilizing heavy metals present in it. Both dry milling and wet milling methods can reduce the leaching rate of heavy metals significantly. Wet milling results in smaller fly ash particles, suggesting water weakens the agglomeration of fine particles.

WASTE MANAGEMENT (2021)

Article Construction & Building Technology

Consideration of strength development by three-dimensional visualization of porosity distribution in coal fly ash concrete

Kengo Nakamura et al.

Summary: Coal fly ash mixed with cement in concrete can significantly improve the physical properties and compressive strength. X-ray CT visualization of the 3D porosity distribution is crucial for evaluating the performance. Findings suggest that the moisture ratio plays a vital role in the porosity structure and long-term strength development of concrete containing coal fly ash.

JOURNAL OF BUILDING ENGINEERING (2021)

Review Crystallography

A Short Review on the Utilization of Incense Sticks Ash as an Emerging and Overlooked Material for the Synthesis of Zeolites

Virendra Kumar Yadav et al.

Summary: Incense sticks ash can serve as a potential candidate for zeolite synthesis due to its economical, reliable, and eco-friendly characteristics, which can help reduce the environmental impact of solid waste.

CRYSTALS (2021)

Review Green & Sustainable Science & Technology

Contemporary applications of natural and synthetic zeolites from fly ash in agriculture and environmental protection

Justyna Szerement et al.

Summary: Zeolites are extensively studied materials for adsorption and ion exchange with wide applications in agriculture and environmental protection. Natural zeolites are widely researched as soil conditioners and fertilizer additives in agriculture, while synthesized zeolites are gaining attention in environmental remediation. Despite numerous studies on zeolites' applications in environmental protection, their full potential is yet to be fully explored.

JOURNAL OF CLEANER PRODUCTION (2021)

Article Green & Sustainable Science & Technology

Synthesis of geopolymers derived from fly ash with an addition of perlite

Pawel Baran et al.

Summary: The study found that adding perlite during the synthesis of geopolymers can control material elasticity and improve thermal insulation properties, while reducing compressive strength.

JOURNAL OF CLEANER PRODUCTION (2021)

Article Microbiology

Biochemical Characterization of a Novel Bacterial Laccase and Improvement of Its Efficiency by Directed Evolution on Dye Degradation

Shuang Dai et al.

Summary: This study successfully generated mutant laccase lac2-9 with higher enzyme activity through error-prone PCR modification, showing improved performance in degrading industrial dyes. The addition of small molecular mediators Ca2+ and ABTS significantly enhanced the degradation ability of laccase, providing a feasible approach for improving laccase activity in environmental pollutant degradation.

FRONTIERS IN MICROBIOLOGY (2021)

Article Engineering, Chemical

Suppression of methane/coal dust deflagration flame propagation by CO2/fly ash as a flue gas layer

Dengke Li et al.

Summary: The study reveals the significant suppression effect of flue gas layer on coal dust deflagration flame propagation, with flame velocity, height, temperature, and ion current decreasing as the thickness and fly ash concentration of the flue gas layer increase. Methods such as CO2 asphyxiation, heat absorption, and insulation of fly ash are the main mechanisms for suppressing coal dust deflagration flame.

ADVANCED POWDER TECHNOLOGY (2021)

Article Construction & Building Technology

Effect of coal ash and rice husk ash partial replacement in ordinary Portland cement on pervious concrete

Fang-Chen Lo et al.

Summary: The study explored the reuse of coal fly ash, coal bottom ash, and rice husk ash as partial replacements of ordinary Portland cement in pervious concrete. The results showed that the replacement of ash materials improved the compressive strength and water permeability of the pervious concrete, meeting the regulatory standards of Taiwan.

CONSTRUCTION AND BUILDING MATERIALS (2021)

Article Energy & Fuels

Recycling of Coal Fly Ash as an Example of an Efficient Circular Economy: A Stakeholder Approach

Oksana Marinina et al.

Summary: This paper examines the issue of coal fly ash recycling from the perspective of stakeholders, assessing the economic benefits and conflicts of interest in such projects and highlighting the reasons for the low interest of the Russian private sector, which include a lack of market incentives and high risks associated with clean coal technologies.

ENERGIES (2021)

Review Environmental Sciences

Fly ash-based nanocomposites: a potential material for effective photocatalytic degradation/elimination of emerging organic pollutants from aqueous stream

Vishal Gadore et al.

Summary: Fly ash, as a by-product of the combustion of organic matter, is readily available and cheaply generated. Researchers have studied the use of fly ash as a support for photocatalysts in wastewater treatment due to its good adsorption capacities. Fly ash-based nanocomposites have shown excellent degradation efficiencies, with SiO2, TiO2, and Al2O3 present in fly ash playing a crucial role in the degradation of dyes. Factors affecting degradation, kinetic studies, and methods to enhance photodegradation efficiency have also been discussed.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2021)

Article Green & Sustainable Science & Technology

Fly-ash based geopolymer mortar for high-temperature application - Effect of slag addition

Izabela Hager et al.

Summary: Geopolymers have the potential to be an alternative to Portland cement due to their ability to incorporate by-products and waste for a cleaner environment. The study evaluated the impact of temperature exposure on the microstructure and mechanical properties of geopolymers, finding that mortar without slag addition showed better performance at high temperatures. Additionally, the research demonstrated the potential of fly ash geopolymers as high-temperature application materials with compressive strength recovery of up to 90% at 1000 degrees C.

JOURNAL OF CLEANER PRODUCTION (2021)

Article Engineering, Environmental

Coal beneficiation technology to reduce hazardous heavy metals in fly ash

Hangil Park et al.

Summary: Fly ash emitted from coal-fired power plants is a major contributor to outdoor airborne particulate matter (PM) pollution. Coal beneficiation is a cost-effective and sustainable technology for reducing the emission of hazardous trace metals by improving the quality of raw coal. Case studies over the past 20 years have shown that coal beneficiation processes can effectively reduce heavy metal content in fly ash, thereby promoting the use of clean coal to reduce pollutant emissions.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Review Thermodynamics

Advanced modeling approaches for CFD simulations of coal combustion and gasification

Christian Hasse et al.

Summary: Research on clean coal technologies requires experimental methods and computational tools, especially 3D computational fluid dynamics (CFD) simulations which can provide detailed information on complex systems.

PROGRESS IN ENERGY AND COMBUSTION SCIENCE (2021)

Review Crystallography

Recent Advances in Methods for Recovery of Cenospheres from Fly Ash and Their Emerging Applications in Ceramics, Composites, Polymers and Environmental Cleanup

Virendra Kumar Yadav et al.

Summary: Coal fly ash (CFA) is a major global pollutant produced during the generation of electricity by thermal power plants. CFA contains value-added components such as cenospheres, which are widely utilized in ceramics, fireproofing materials, and wastewater treatment due to their lightweight nature and high mechanical strength.

CRYSTALS (2021)

Review Multidisciplinary Sciences

Fly ash properties, characterization, and applications: A review

Seham S. Alterary et al.

Summary: Fly ash is an industrial waste byproduct from burning solid fuels, mainly composed of unburned carbon, metal oxides, and other inorganic substances. It is commonly utilized for wastewater treatment and has promising beneficial applications in the construction industry, particularly in cement and concrete production.

JOURNAL OF KING SAUD UNIVERSITY SCIENCE (2021)

Review Multidisciplinary Sciences

Fly ash-based geopolymers: an emerging sustainable solution for heavy metal remediation from aqueous medium

Piyush Gupta et al.

Summary: Heavy metal contamination in water resources is a global issue caused by industrial activities, posing threats to the environment and human health. Utilizing adsorption methods to remove heavy metals from water is a simple, cost-effective, efficient, and eco-friendly solution.

BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES (2021)

Proceedings Paper Materials Science, Multidisciplinary

Flexural behaviour of fly ash based geopolymer concrete

P. M. Rameshwaran et al.

Summary: The study found that Fly Ash Based Geopolymer Concrete can be used in the construction industry due to its eco-friendly nature, and encourages the use of fly ash waste from coal based power plants. This helps to solve the problem of fly ash dumping.

MATERIALS TODAY-PROCEEDINGS (2021)

Proceedings Paper Materials Science, Multidisciplinary

Durability properties of oil palm shell lightweight aggregate concrete containing fly ash as partial cement replacement

Khairunisa Muthusamy et al.

Summary: The study investigates the effect of fly ash as partial cement replacement on the compressive strength, porosity, and acid resistance of OPS lightweight aggregate concrete. Results show that increased use of fly ash leads to strength reduction and higher porosity, while concrete with less fly ash experiences lower mass loss and strength drop in acidic environments.

MATERIALS TODAY-PROCEEDINGS (2021)

Article Green & Sustainable Science & Technology

Processing of Coal Fly Ash for the Extraction of Alumina Values

Ashwini Kumar et al.

JOURNAL OF SUSTAINABLE METALLURGY (2020)

Article Environmental Sciences

Is Disposal of Unused Pharmaceuticals as Municipal Solid Waste by Landfilling a Good Option? A Case Study in China

Qingwei Bu et al.

BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY (2020)

Article Construction & Building Technology

Influence of recycled concrete aggregates and Coal Bottom Ash on various properties of high volume fly ash-self compacting concrete

Pawan Kumar et al.

JOURNAL OF BUILDING ENGINEERING (2020)

Review Materials Science, Ceramics

Advances in Methods for Recovery of Ferrous, Alumina, and Silica Nanoparticles from Fly Ash Waste

Virendra Kumar Yadav et al.

CERAMICS-SWITZERLAND (2020)

Review Environmental Sciences

Processing and uses of fly ash addressing radioactivity (critical review)

Jadambaa Temuujin et al.

CHEMOSPHERE (2019)

Review Environmental Sciences

Possible applications of coal fly ash in wastewater treatment

Farwa Mushtaq et al.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2019)

Article Energy & Fuels

Exhaust gas purification process using fly ash-based sorbents

A. Sciubidlo et al.

Article Engineering, Chemical

Reaction kinetics of fly ash geopolymerization: Role of particle size controlled by using ball mill

S. K. Nath et al.

ADVANCED POWDER TECHNOLOGY (2019)

Article Materials Science, Multidisciplinary

Composition and Structure of Block-Type Ferrospheres Isolated from Calcium-Rich Power Plant Ash

N. N. Anshits et al.

INORGANIC MATERIALS (2018)

Article Green & Sustainable Science & Technology

Hydrothermal synthesis of zeolite production from coal fly ash: A heuristic approach and its optimization for system identification of conversion

Zhandos Tauanov et al.

JOURNAL OF CLEANER PRODUCTION (2018)

Article Engineering, Environmental

Environmental impact and potential use of coal fly ash and sub-economical quarry fine aggregates in concrete

Roy Nir Lieberman et al.

JOURNAL OF HAZARDOUS MATERIALS (2018)

Article Green & Sustainable Science & Technology

Synthesis of high quality zeolites from coal fly ash: Mobility of hazardous elements and environmental applications

Wei Feng et al.

JOURNAL OF CLEANER PRODUCTION (2018)

Article Engineering, Chemical

Fly-Ash-Modified Calcium-Based Sorbents Tailored to CO2 Capture

Huichao Chen et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2017)

Article Environmental Sciences

Potassium-based sorbents from fly ash for high-temperature CO2 capture

Aimaro Sanna et al.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2016)

Article Environmental Sciences

CO2 capture using fly ash from coal fired power plant and applications of CO2-captured fly ash as a mineral admixture for concrete

Chaichan Siriruang et al.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2016)

Review Engineering, Environmental

Fly ash zeolites for water treatment applications

Nevin Koshy et al.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2016)

Review Engineering, Chemical

Application of Coal Fly Ash in Air Quality Management

M. Ahmaruzzaman et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2012)

Article Environmental Sciences

Removal of Anionic Pollutants from Waters and Wastewaters and Materials Perspective for Their Selective Sorption

Patricia F. Lito et al.

WATER AIR AND SOIL POLLUTION (2012)

Article Materials Science, Ceramics

The effect of fluidized fly ash on the properties of dry pressed ceramic tiles based on fly ash-clay body

Radomir Sokolar et al.

CERAMICS INTERNATIONAL (2011)

Review Environmental Sciences

An appraisal of the potential use of fly ash for reclaiming coal mine spoil

Lal C. Ram et al.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2010)

Review Thermodynamics

A review on the utilization of fly ash

M. Ahmaruzzaman

PROGRESS IN ENERGY AND COMBUSTION SCIENCE (2010)

Article Engineering, Environmental

Sorbents for CO2 capture from high carbon fly ashes

M. Mercedes Maroto-Valer et al.

WASTE MANAGEMENT (2008)

Article Engineering, Environmental

Submerged membrane bioreactor using fly ash filters: trials with distillery wastewater

R. Gupta et al.

WATER SCIENCE AND TECHNOLOGY (2008)

Article Engineering, Environmental

Recovery of gallium and vanadium from gasification fly ash

Oriol Font et al.

JOURNAL OF HAZARDOUS MATERIALS (2007)

Article Engineering, Chemical

CO2 capture by amine-enriched fly ash carbon sorbents

ML Gray et al.

SEPARATION AND PURIFICATION TECHNOLOGY (2004)

Article Engineering, Chemical

Effect of CaSO4 on the structure and use of Ca(OH)2/fly ash sorbents for SO2 removal

J Fernández et al.

POWDER TECHNOLOGY (2001)