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Journal articles on the topic 'Fly ash liquid'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Rachman, Susila Arita, Devi Kristianti, and Yuanita Windusari. "HISTOLOGY TEST OF TILAPIA (Oreochromis niloticus) ON ADSORBENT PERFORMANCE RESULTS IN LIQUID TREATMENT OF INDUSTRY PULP AND PAPER WASTE." BIOVALENTIA: Biological Research Journal 8, no. 1 (2021): 14–21. http://dx.doi.org/10.24233/biov.8.1.2022.228.

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Pulp and paper industry fly ash is categorized as B3 waste, namely hazardous and toxic waste. Liquid waste produced by the pulp and paper industry contains pollutants that are toxic and can cause pathological and histopathological changes in important tissues such as the gills of fish that live in the waters around the disposal. The purpose of this study was to analyze the histology of tilapia on the performance results of fly ash adsorbents in the management of liquid waste in the pulp and paper industry. The research method has 6 treatments, namely the ratio of fly ash to pulp and paper liqu

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2

Chi, Mao Chieh, and Yen Chun Liu. "Effects of Fly Ash/Slag Ratio and Liquid/Binder Ratio on Strength of Alkali-Activated Fly Ash/Slag Mortars." Applied Mechanics and Materials 377 (August 2013): 50–54. http://dx.doi.org/10.4028/www.scientific.net/amm.377.50.

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The purpose of this study is to investigate the effects of fly ash/slag ratio and liquid/binder ratio on strength of alkali-activated fly ash/slag (AAFS) mortars. Three liquid/binder ratios of 0.35, 0.5 and 0.65 and three fly ash/slag ratios of 100/0, 50/50, and 0/100 were selected as variables to design and produce mixes of AAFS mortars. The compressive strength and flexural strength of alkali-activated fly ash/slag mortars were discussed and compared with reference mortars produced using ordinary Portland cement (OPC) mortars. Based on the results, both fly ash/slag ratio and the liquid/bind

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3

Kuang, Jing Zhong, Xiang Chuan Zhao, Fang Shi, and Hai Ying Cao. "Study on Influence Factors of Fly Ash and Metakaolin Based Geopolymer." Advanced Materials Research 538-541 (June 2012): 2322–28. http://dx.doi.org/10.4028/www.scientific.net/amr.538-541.2322.

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Gepolymeric material is a new building material, which not only has the characteristics of organic polymer, ceramic and cement but also unique properties. The effects of four factors on the strength of fly ash and metakaolin based geopolymer were discussed with the orthogonal tests in this study, including fly ash content, NaOH solution concentration, solid-liquid ratio and the content of sodium silicate in the liquid phase. The results show that: content of fly ash 30%, NaOH solution concentration 12mol/L, solid-to-liquid ratio 4.5 and the content of sodium silicate in the liquid phase 65% is

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4

Sonawane, Y. B., M. R. Shindikar, and M. Y. Khaladkar. "Effect of Fly Ash in Pyrolysis of HDPE, LDPE and PP Plastic Waste." Nature Environment and Pollution Technology 23, no. 3 (2024): 1735–42. http://dx.doi.org/10.46488/nept.2024.v23i03.046.

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Fly ash is generally obtained as a by-product from the combustion of coal and other waste materials. It is used for making bricks, but it has few limitations. The fly ash consists of Silica, Alumina, and other metal oxide components in minor quantities. Fly ash particles are observed in the range of nanometers to micrometers and can act as a catalyst in various reactions. The use of low-cost catalysts in the pyrolysis of thermoplastic waste would achieve a high percentage of low molecular weight fractions in liquid form which increases its applicability in commercial sectors. Hence, there is a

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5

Fang, Ji Hui, Xian Li, Jianping Zhou, et al. "Experimental Study on the Removal of Flue Gas Mercury by Coal Fly Ash under UV Light Conditions." Advanced Materials Research 610-613 (December 2012): 210–14. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.210.

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The mercury removal performance of the 150 mesh coal fly ash was evaluated through multiphase flow reactor designed by Shanghai University of Electric Power and different types of fly ash and absorption liquid were analyzed with HYDRA AA. The results showed that UV light almost had no oxidation capacity for gaseous mercury without fly ash, but the removal efficiency was significantly improved from 38.5% to 66.1% in the UV light by adding fly ash into the simulated flue gas. The fly ash after exposure to UV irradiation can improve the removal efficiency of Hg and the capture capacity of oxidize

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6

Osmanlioglu, Ahmet Erdal. "Utilization of coal fly ash in solidification of liquid radioactive waste from research reactor." Waste Management & Research: The Journal for a Sustainable Circular Economy 32, no. 5 (2014): 366–70. http://dx.doi.org/10.1177/0734242x14523664.

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In this study, the potential utilization of fly ash was investigated as an additive in solidification process of radioactive waste sludge from research reactor. Coal formations include various percentages of natural radioactive elements; therefore, coal fly ash includes various levels of radioactivity. For this reason, fly ashes have to be evaluated for potential environmental implications in case of further usage in any construction material. But for use in solidification of radioactive sludge, the radiological effects of fly ash are in the range of radioactive waste management limits. The re

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7

Xie, Wenxia, Chunmin Tu, Jun Zhang, and Chengwei Xu. "Effect of Fly Ash on the Mass Transfer Performance of CO2 Removal Using MEA and DEA Solutions in a Packed Tower." Separations 11, no. 1 (2024): 20. http://dx.doi.org/10.3390/separations11010020.

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The accumulation of uncollected fly ash from flue gas in post-combustion CO2 capture processes is a significant concern in current coal-fired power plants due to its potential impact on the performance of CO2 absorbent and absorption towers. In order to determine the effect of fly ash on the mass transfer performance of CO2 absorption into monoethanolamine (MEA) and diethanolamine (DEA) aqueous solutions, experimental studies were carried out using a small-sized packed tower equipped with θ-ring random packing. These studies were conducted under various operating parameters, including solution

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8

Talekar, Publisher: P. R. "Experimental Study on Potential of Flyash in Soil Stabilization." International Journal of Advance and Applied Research 5, no. 14 (2024): 38–41. https://doi.org/10.5281/zenodo.11173942.

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<strong>Abstract:</strong> The present investigation explores the effectiveness of fly ash as a stabilizing agent by an analysis of its influence on soil consistency limits, compaction behavior, and strength characteristics. The study demonstrates notable reductions in the liquid limit and plasticity index of soil as the amount of fly ash replacement increases (3%, 6%, and 9%), as observed through Atterberg limit tests conducted in accordance with the IS 2720 criteria. The liquid limit exhibits a continuous decrease as the replacement of fly ash increases, with greater replacements leading to

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9

P., R. Talekar. "Experimental Study on Potential of Flyash in Soil Stabilization." International Journal of Advance and Applied Research 5, no. 9 (2024): 38–41. https://doi.org/10.5281/zenodo.11197038.

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<strong>Abstract:</strong> The present investigation explores the effectiveness of fly ash as a stabilizing agent by an analysis of its influence on soil consistency limits, compaction behavior, and strength characteristics. The study demonstrates notable reductions in the liquid limit and plasticity index of soil as the amount of fly ash replacement increases (3%, 6%, and 9%), as observed through Atterberg limit tests conducted in accordance with the IS 2720 criteria. The liquid limit exhibits a continuous decrease as the replacement of fly ash increases, with greater replacements leading to

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10

Chinara Abinawa and Alieftiyani Paramita Gobel. "Studi Pengolahan Limbah Fly Ash Batubara dalam Upaya Peningkatan Konsentrasi Silika Menggunakan Asam Sitrat." INSOLOGI: Jurnal Sains dan Teknologi 3, no. 3 (2024): 288–96. http://dx.doi.org/10.55123/insologi.v3i3.3519.

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The combustion of coal produces two types of waste, namely light ash (Fly Ash) and heavy ash (Bottom Ash). Fly ash is the waste generated by power plants, contributing to environmental pollution. According to data from the Ministry of Industry of the Republic of Indonesia in 2022, the current amount of fly ash and bottom ash in Indonesia continues to increase in line with the development and growth of the manufacturing industry as well as the increasing demand for electricity supplied by power plants. The combined fly ash and bottom ash generated from power plants alone in 2021 are estimated t

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11

Peng, Xu. "Dynamic hydrothermal synthesis of xonotlite fibers by alkali silica extraction of fly ash." Journal of Engineered Fibers and Fabrics 14 (January 2019): 155892501989034. http://dx.doi.org/10.1177/1558925019890340.

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The silica leached from coal fly ash using alkali, via the hydrothermal method, can be used as the raw material for the synthesis of xonotlite fibers through the hydrothermal synthesis method. This investigation was made to examine how the fly ash desilicated liquid influences the crystal growth and microstructure of xonotlite fibers. The obtained samples were characterized by X-ray diffraction and scanning electron microscope techniques to investigate their mineralogical composition and morphological characteristics. The results indicated that the pure desilication liquid leached from coal fl

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12

Liyana, J., Abdullah Mohd Mustafa Al Bakri, Kamarudin Hussin, C. M. Ruzaidi, and A. Rashid Azura. "Effect of Fly Ash/Alkaline Activator Ratio and Sodium Silicate/NaOH Ratio on Fly Ash Geopolymer Coating Strength." Key Engineering Materials 594-595 (December 2013): 146–50. http://dx.doi.org/10.4028/www.scientific.net/kem.594-595.146.

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Fly ash geopolymer coating material potential used to protect surface used in exposure conditions. Ratio of fly ash/alkaline activator and Na2SiO3/NaOH play important parameter on determining the best flexural strength of geopolymer coating material. Fly ash and alkali activator (Al2O3/Na2SiO3) were mixed with the solids-to-liquid ratios in range of 1.0-3.0 and different ratios of Na2SiO3/NaOH (1.0-3.0) to prepare geopolymer coating material at constant NaOH concentration of 10 M. Effect of fly ash/alkaline activator ratio and Na2SiO3/NaOH on geopolymer coating was determined with respect to t

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13

Hussein H. Karim, Zeena W. Samueel, and Adel H. Jassem. "Influence of Fly Ash Addition on Behavior of Soft Clayey Soil." Engineering and Technology Journal 38, no. 5A (2020): 698–706. http://dx.doi.org/10.30684/etj.v38i5a.426.

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This paper investigates the impact of the fly Ash addition on the Geotechnical properties of soft soil as well as chooses the optimum percentage added of fly ash. To understand the behavior of fly ash mixed with soil, a number of laboratory experiments testing conducted on clayey soil-fly ash mixture in several percentages (5,10,15,20,25, and 30%) as Atterberg test, Specific gravity test, compaction test, California Bearing Ratio (C.B.R) Test, Unconfined Compressive Strength (UCS) Test, Consolidation Test. Test results indicate rising in plastic limit and liquid limit as fly ash adding. Specif

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14

Nath, Bayshakhi Deb, Md Keramat Ali Molla, and Grytan Sarkar. "Study on Strength Behavior of Organic Soil Stabilized with Fly Ash." International Scholarly Research Notices 2017 (September 11, 2017): 1–6. http://dx.doi.org/10.1155/2017/5786541.

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The aim of this study is to investigate the effect of fly ash on the consistency, compactness, acidic properties, and strength of organic soil. The presence of organic content in the soil has detrimental impacts on the physical and strength behavior of soil. To investigate the effectiveness of fly ash in the stabilization of organic soil, two types of fly ashes (Type I and Type II) at different percentages were used. It is found that fly ash significantly reduces the plasticity index of the organic soil, whereas the liquid and plastic limits increase. The dry density of the fly ash-soil mixtur

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15

Zou, Dezhi, Xiaona Wang, Chuanfu Wu, et al. "Dechlorination of Municipal Solid Waste Incineration Fly Ash by Leaching with Fermentation Liquid of Food Waste." Sustainability 12, no. 11 (2020): 4389. http://dx.doi.org/10.3390/su12114389.

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Cement kiln collaborative disposal of municipal solid waste incineration (MSWI) fly ash (referred to as fly ash) can achieve harmless recycling of fly ash. However, because of high chlorine (Cl) content in fly ash, the practical application of this technology is seriously restricted. In order to find a suitable leaching solvent for dechlorination of fly ash, this study compared the effect of lactic acid fermentation liquid (FL) and sludge FL of food waste on dechlorination. Results show that 90% of water-insoluble Cl in fly ash can be removed by a three-step leaching process with lactic acid F

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16

Zhang, Hai Ying, Guo Liang Yuan, and Guo Xian Ma. "Basic Physicochemical Characteristics of Fly Ash from One Shanghai Municipal Solid Waste Incineration (MSWI) Plant." Advanced Materials Research 531 (June 2012): 362–65. http://dx.doi.org/10.4028/www.scientific.net/amr.531.362.

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Fly ash collected from municipal solid waste (MSW) incinerator have been characterized in terms of chemical constituents, mineralogical components, acid neutralizing capacity and total salt content. It was found that the fly ash is rich in SiO2, Al2O3, CaO, Fe2O3 and MgO, which may act as glass-formers (SiO2 and Al2O3), melting (Fe2O3) and stabilizing agents (Fe2O3) during thermal treatment process. Major mineralogical components of fly ash involve SiO2, CaCl2, Ca3Si2O7, Ca2SiO40.35H2O, Ca9Si6O21H2O, K2Al2Si2O83.8H2O and AlCl34Al(OH)34H2O. Aqueous solution of fly ash is alkaline with pH o

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17

Ramin Hosseini Kupaei, U.Johnson Alengaram, and Mohd Zamin Bin Jumaat. "A Review on Fly Ash-Based Geopolymer Concrete." Electronic Journal of Structural Engineering 13, no. 2 (2013): 1–6. http://dx.doi.org/10.56748/ejse.131652.

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Ordinary Portland cement (OPC) is conventionally used as the primary binder to produce concrete. The environmental issues associated with the production of OPC are well known. Binders could be produced by a polymeric reaction of alkaline liquids with the silicon and the aluminium in source materials of geological origin or by-product materials such as fly ash. Low-calcium fly ash-based geopolymer is used as the binder, instead of Portland or other hydraulic cement paste, to produce concrete. The manufacture of geopolymer concrete is carried out using the usual concrete technology methods. As i

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18

Priyam, Bhowmik, Ridwanul Hoque Md., and Samonta Susmita. "Stabilization of Expansive Soil by Using Fly Ash and Coir Fiber." Journal of Advances in Geotechnical Engineering 7, no. 3 (2024): 25–55. https://doi.org/10.5281/zenodo.13841417.

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<em>Expansive soil presents considerable difficulties in building and geotechnical engineering due to its adverse volume alterations in response to moisture fluctuations. This research examines the application of coir fiber and fly ash as stabilizers for expanding soils. Coir fiber, a natural and biodegradable substance, and fly ash, a byproduct of coal combustion, were evaluated for their capacity to mitigate soil expansion. Comprehensive soil samples obtained from the Korean Export Processing Zone (KEPZ) underwent laboratory analysis. Per USCS classification, the soil is categorized as inorg

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Jiang, Zhiqiang, Bai Xue, Xiaoping Mai, et al. "Integrating Fly Ash-Controlled Surface Morphology and Candle Grease Coating: Access to Highly Hydrophobic Poly (L-lactic Acid) Composite for Anti-Icing Application." Nanomaterials 13, no. 7 (2023): 1230. http://dx.doi.org/10.3390/nano13071230.

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New ways of recycling fly ash are of great significance for reducing the environmental pollution. In this work, biodegradable hydrophobic poly (L-lactic acid)/fly ash composites for anti-icing application were successfully fabricated via a facile solvent-volatilization-induced phase separation approach. A silane coupling agent of 3-(Trimethoxysilyl) propyl methacrylate was used to decorate a fly ash surface (FA@KH570) for strengthening the interface bonding between fly ash and poly (L-lactic acid). Moreover, FA@KH570 could obviously enhance the crystallinity of poly (L-lactic acid) (PLLA)/FA@K

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20

Li, Minjie, Jie Chen, Xiaoqing Lin, et al. "Study on Three-Stage Counter-Current Water Washing Desalination Characteristics and Mechanism of High Chlorine Waste Incineration Fly Ash." Processes 10, no. 12 (2022): 2540. http://dx.doi.org/10.3390/pr10122540.

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The high chloride content of municipal solid waste incineration (MSWI) fly ash and hazardous waste incineration (HWI) fly ash has considerably affected their disposal. This study focused on investigating the three-stage counter-current (TSC) water-washing process to reduce the chlorine content efficiently under the premise of low water consumption. The liquid–solid ratio (LSR) and washing time were investigated, a chloride migration model was established, and the characteristics of the water-washing solution (WWS) and washed fly ash were investigated. The results showed that the dechlorination

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Durga Vara Prasada Rao, Kollu Kanaka, and Mundru Raghavendra. "Study on Influence of Various Factors on the Properties of Geopolymer Concrete Produced from Industrial By-Products." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 04 (2025): 1–9. https://doi.org/10.55041/ijsrem43502.

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Large amounts of carbon dioxide and other gases are produced during the Portland cement manufacturing process. When these gases are released into the atmosphere, pollution results, which leads to environmental deterioration. For environmental sustainability, it is crucial to find a viable alternative solution to lessen the environmental damage caused by the usage of Portland cement. Conversely, fly ash, a waste product of coal-based thermal power plants, is widely accessible but presents disposal challenges. Using a cementitious substance like fly ash instead of Portland cement in concrete has

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Myllymäki, Pekka, Janne Pesonen, Henrik Romar, Tao Hu, Pekka Tynjälä, and Ulla Lassi. "The Use of Ca- and Mg-Rich Fly Ash as a Chemical Precipitant in the Simultaneous Removal of Nitrogen and Phosphorus—Recycling and Reuse." Recycling 4, no. 2 (2019): 14. http://dx.doi.org/10.3390/recycling4020014.

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The European Union’s circular economy strategy aims to increase the recycling and re-use of products and waste materials. According to the strategy, the use of industry waste material should be more effective. A chemical precipitation method to simultaneously remove phosphorus and nitrogen from synthetic (NH4)2HPO4 solution and the liquid phase of anaerobic digestate using fly ash as a precipitant was tested. Fly ash is a waste material formed in the power plant process. It mainly contains calcium oxide (CaO) and magnesium oxide (MgO). Saturated precipitant solution was prepared from fly ash,

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Song, Hui Ping, Fang Bin Xue, Fang Qin Cheng, Yan Xia Guo, and Huai Gang Cheng. "The Influence of Modification Conditions on Activation of Coal Fly Ash." Advanced Materials Research 813 (September 2013): 471–74. http://dx.doi.org/10.4028/www.scientific.net/amr.813.471.

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The sodium hydroxide calcination-hydrothermal treatment was used to modify the fly ash in this paper. The mount of alkali, the ratio of solid and liquid and the temperature of calcination were respectively studied in the process of modification. The best modified condition is that the ratio of sodium hydroxide and fly ash was 0.4:1, the ratio of solid and liquid was 1:1, and the temperature of calcination was 400°C. The zeolite-like structure was generated after modification. The modified fly ash in this paper was cheap and effective, providing a theoretical basis for wastewater treatment.

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Wu, Si, Kai Wang, and Liping Li. "Study on geotechnical performance of high-grade highway subgrade applied with fly ash." Vibroengineering Procedia 51 (October 20, 2023): 101–6. http://dx.doi.org/10.21595/vp.2023.23503.

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The subgrade filling of high-grade highways requires a lot of earth and stone. If the use of fly ash is used for filling, the purpose of reducing the weight of the subgrade and consuming a large amount of industrial solid waste can be achieved. In order to ensure that fly ash has the possibility of filling, it is necessary to systematically study the road geotechnical properties of fly ash. In this paper, the low liquid limit silty silica-alumina fly ash is taken as the research object, and the road geotechnical properties of fly ash are studied through laboratory tests. The results of the com

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Telaumbanua, Juang Jaya Putra. "Using Fly Ash And Bottom Ash Boiler Of Palm Oil Factories As Adsorbents For Adsorption Of Color In Artificial Liquid Waste." Jurnal Mekintek : Jurnal Mekanikal, Energi, Industri, Dan Teknologi 11, no. 2 (2020): 59–67. http://dx.doi.org/10.35335/mekintek.v11i2.15.

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This study aims to determine the ability of battom ash and fly ash in adsorbing artificial wastewater dye (PtCo) and chemical oxygen demand (COD) with three variations of adsorbent used in adsorption column. This research begins with the process of washing, drying and sieving adsorbent. Then proceed with the activation process of adsorbent using HCl 1 M which is heated at 90 0C for 1 hour accompanied by stirring. The adsorption system used is continuous (column) with up-flow flow pattern and using the pump to provide pressure so that the influent can pass through the adsorbent contained in the

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Bach, Trong Phuc, Trong Phuc Bach, Thanh Liem Nguyen, and Thi Huong Pham. "Effect of Grafted Silane on Fly Ash Pha Lai - Vietnam to Properties of Polymer Composite Materials Based on Bisphenol A Type Epoxy Resin." International Journal of Trend in Scientific Research and Development 3, no. 6 (2019): 163–68. https://doi.org/10.5281/zenodo.3587664.

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Recently, there has been much research on fly ash and its use as a filler in polymer composite materials. However, interfacial adhesion of fly ash with polymer matrix is weak. So, fly ash must be treated to improve interfacial adhesion. This paper reports effect of surface treatments of fly ash particles to mechanical, thermal properties and structure of polymer composites based on DER 331 epoxy resin matrix. The fly ash was treated by silane coupling agent GF 80 and GF 82. The results showed that the mechanical properties of silane GF 80 and GF 82 treated fly ash epoxy resin composites were h

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Salman, Ruaa A., and Naser K. Zedin. "Effect Multiple Addition (TiO₂ and Fly Ash) on Wear Behavior and Hardness of 2024 Al Alloy." Materials Science Forum 1039 (July 20, 2021): 201–8. http://dx.doi.org/10.4028/www.scientific.net/msf.1039.201.

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This research is devoted to study the effect of addition (2%) TiO2 with different weight percent of fly ash particulate (0, 2, 4, 6%) to 2024 Al alloy on the wear behavior and hardness. The alloy was fabricated by the liquid metallurgy method. The results founds that the wear rate decreased from 0.55 with 0% fly ash to 0.18 at addition percentage of 6% fly ash. Also, the results reveal increasing the samples wear rate with increasing the load and loaded time. The rate of wear was decreased with increasing the sliding speed. Also, the values of hardness increased from 120VH to 160VH with rising

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Manasikana, Arina, and Arnesya Ramadhani. "Filtration of Kutawaru Cilacap batik waste using fly ash activated by sulfuric acid." Jurnal Rekayasa Proses 19, no. 1 (2025): 25–30. https://doi.org/10.22146/jrekpros.11219.

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The batik industry is one of the largest contributors to liquid waste. Batik liquid waste if not treated properly has the potential to increase disease and pollute the environment. Pollutant levels contained in the waste can be degraded by using fly ash as an adsorbent. Fly ash is obtained from Steam Power Plant waste. The purpose of this study was to determine the best concentration of sulfuric acid between 1M and 3M added to activate fly ash to reduce COD, BOD, TSS, color change and pH of Kutawaru batik waste. The research consisted of three stages: the first stage was the activation of fly

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Jaya, Danang, Anisa Anisa, Dian Prasetyani Basuki, and Tunjung Wahyu Widayati. "Leaching SiO₂ On Coal Fly Ash As Ammonium Adsorbent In Tofu Liquid Waste Using Hydrothermal Method." Eksergi 19, no. 3 (2022): 155. http://dx.doi.org/10.31315/e.v19i3.8204.

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Soybean is one of the main food commodities in Indonesia. One of the soybean processing that is often consumed is tofu. Inappropriate treatment of tofu liquid waste is very dangerous for life. It is noted that the ammonia content in tofu liquid waste is 23.3-23.5 mg/l which can cause odors that disturb the residents' comfort. One alternative solution for purifying tofu liquid waste is to carry out an adsorption process using coal fly ash. Fly ash contains metal oxides in the form of SiO₂, Al₂O₃, Fe₂O₃, CaO, MgO, K₂O, and Na₂O. The content of SiO₂ as much as 60-70% in it causes fly ash to be ve

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Goryacheva, Natalya I., Alexey V. Poltavets, Alexander R. Bogomolov, and Elena Yu Temnikova. "Approaches to the method of granulation of fly ash of power plants." Bulletin of the Tomsk Polytechnic University Geo Assets Engineering 335, no. 11 (2024): 210–18. http://dx.doi.org/10.18799/24131830/2024/11/4557.

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Relevance. The research is aimed at reducing the impact of deficiencies (dusting) when involving in circulation fly ash, which prevents the wider use of valuable secondary raw materials in the production of demanded products. The direction of work corresponds to the Comprehensive Waste Disposal Plan for coal-fired power plants and boiler houses, approved by the Decree of the Government of the Russian Federation dated 06/15/2022 No. 1557-R. Aim. Development of an optimal technology for the production of granules from fly ash of Kemerovo GRES using two types of substances of a similar nature as

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Yang, Dong, Zhiqin Xi, Qiang Chen, and Shuisheng Li. "Mechanical Properties of Tunnel Muck with Fly-Ash Geopolymer." Advances in Civil Engineering 2020 (February 12, 2020): 1–10. http://dx.doi.org/10.1155/2020/7247134.

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The tunnel muck has a great potential to be used as a recyclable engineering material in transit and other civil work projects instead of being deposited as construction waste. In this work, the geopolymer is generated by alkali-activated fly ashes, which act as cementitious materials to strengthen the tunnel muck. The tunnel muck has to be dehydrated, grinded, and screened before being treated by alkali-activated fly ash. The effect of the mass ratio between fly ash and tunnel muck (Mfa/Mtm), the mass ratio between Na2SiO3 solution and NaOH solution (MNa2SiO3/MNaOH), the ratio between liquid

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Al Bakri Abdullah, Mohd Mustafa, H. Kamarudin, Omar A. K. A. Abdulkareem, Che Mohd Ruzaidi Ghazali, A. R. Rafiza, and M. N. Norazian. "Optimization of Alkaline Activator/Fly ASH Ratio on the Compressive Strength of Manufacturing Fly ASH-BASED Geopolymer." Applied Mechanics and Materials 110-116 (October 2011): 734–39. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.734.

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Fly ash and a mixture of alkaline activators namely sodium silicate (Waterglass) and sodium hydroxide (NaOH) solution were used for preparing geopolymer. The aim of this research is to determine the optimum value of the alkaline activator/fly ash ratio. The effect of the oxide molar ratios of SiO2/Al2O3, water content of the alkaline activator and the Waterglass% content were studied for each Alkaline activator/fly ash ratio. The geopolymers were synthesized by the activation of fly ash with alkaline solution at three different alkaline activator/fly ash ratios which were 0.3, 0.35, and 0.4 at

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Szabó, R., I. Gombkötő, M. Svéda, and G. Mucsi. "Effect of Grinding Fineness of Fly Ash on the Properties of Geopolymer Foam." Archives of Metallurgy and Materials 62, no. 2 (2017): 1257–61. http://dx.doi.org/10.1515/amm-2017-0188.

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AbstractPresent paper deals with the development of geopolymer foam prepared from ground F class power station fly ash. The effect of the fly ash fineness on the rheology of the geopolymer paste and the foam properties have been investigated. The raw fly ash was ground in a ball mill for various duration, 5, 10, 20, 30, 60 and 120 min. Geopolymer paste was prepared from the raw and ground fly ash with NaOH – sodium silicate mixture as alkaline activator. Geopolymer foam production was made using H2O2as foaming agent. Additionally, the geopolymer material structure was investigated by Fourier t

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Erlangga, Irfani Faiq, Sylvia Ayu Pradanawati, Azzah Dyah Pramata, and Nur Laila Hamidah. "Corn Starch-Sodium Acetat Composite Material from Industrial Waste Fly Ash for Solid Electrolyte Polymer Ionic Conductivity in Supercapacitor Application." Engineering Chemistry 5 (January 19, 2024): 19–25. http://dx.doi.org/10.4028/p-kqn5dt.

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Solid polymer electrolyte (SPE) is a safer alternative to use than liquid electrolytes. This research focuses on the highest conductivity with fly ash filler in solid polymer electrolyte (SPE) based on corn starch, using the solution casting method. The crystallinity and interaction between fly ash and Na+ ions of solid polymer electrolyte were seen by X-ray Diffraction (XRD), then Fourier Transform Infra-Red (FTIR), showing a shift in functional groups due to the interaction of SiO2 in fly ash and Na+ ions, and surface morphology forms was observed by Scanning Electron Microscopy (SEM). Ionic

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Bai, Guang Hui, Lin Lv, Tong Song Wang, Peng Cheng Li, and Cai Ling He. "Study on the Method of Lime Cream to Remove Sodium from Fly Ash Red Mud by Soda-Lime Sintering Process." Advanced Materials Research 726-731 (August 2013): 2790–94. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.2790.

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It is the first time to remove sodium from the fly ash red mud by soda-lime sintering process to determine whether the fly ash red mud can be used in cement production. This paper studies the effects of the reaction time, the reaction temperature, the ratio of liquid to solid, and the amount of sodium removal agent on the removal of milk of lime method of fly ash red mud in sodium. The optimal reaction conditions are that: the reaction time is 120min, the reaction temperature is 90°C, the ratio of liquid to solid ratio is 6:1, and the ratio of sodium removal agent Ca (OH) 2 to the red mud of N

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Zhao, Xiao Min, and Li Wen Cao. "The Influence of the Clay's Geotechnical Behaviors with the Fly Ash." Applied Mechanics and Materials 170-173 (May 2012): 164–68. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.164.

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In this paper, the different proportion and different time of fly ash soil mixed soil properties， mainly the plastic liquid limit and compressive strength were analyzed. The results showed that soil plasticity index was decreased with the increase of the content of fly ash and the plastic liquid limit decrease with the extension of time. The compressive strength of the three kinds mixing with the different water content was increase following the water content decrease. Moisture content is less than the best water content, compressive strength changes with the water content, water content is g

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Nguyen, Tam Thanh, Cheng-Kuo Tsai, and Jao-Jia Horng. "Sustainable Recovery of Valuable Nanoporous Materials from High-Chlorine MSWI Fly Ash by Ultrasound with Organic Acids." Molecules 27, no. 7 (2022): 2289. http://dx.doi.org/10.3390/molecules27072289.

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The new technology development for municipal solid waste incineration fly ash treatment and reuse is urgent due to landfill shortage and environmental effect of leached hazardous substances. Chlorine (Cl) is worth considering due to its high levels in fly ash. In this study, a treatment process of ultrasound combined with organic acid was used to eliminate Cl from fly ash to enhance its properties for reuse. Taguchi methodology was implemented to design the experiments by controlling four impact factors and the contribution of each factor was evaluated by the ANOVA analysis of variance. Follow

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Wongkeo, Watcharapong. "Effect of Calcium Carbonate on Compressive Strength and Physical Properties of Alkali-Activated Lightweight Concrete." Key Engineering Materials 751 (August 2017): 550–55. http://dx.doi.org/10.4028/www.scientific.net/kem.751.550.

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This study presents the compressive strength and physical properties of alkali-activated lightweight concrete. Alkali-activated lightweight concrete was synthesized with fly ash, calcium carbonate and sodium hydroxide solution. Calcium carbonate was designed to replace part of fly ash at 5 and 10 wt.%. Sodium hydroxide solution at 5, 7.5 and 10 M was used as a liquid solution. Liquid to ash ratio (L/A ratio) at 0.45 was designed and aluminium powder was used as a foaming agent. The results showed that, the compressive strength of alkali-activated lightweight concrete made with fly ash was incr

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Verma, Saraswati, and Mayank Kumar. "Behaviour of Fly Ash and Rice Husk Ash Based Geopolymer Concrete." Key Engineering Materials 775 (August 2018): 596–602. http://dx.doi.org/10.4028/www.scientific.net/kem.775.596.

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Geopolymer Concrete (GPC) is a novel concrete which has evolved in recent decades. It uses industrial waste products like fly ash (FA), ground granulated blast slag (GGBS), Rice husk ash (RHA), micro-silica, and red mud etc., from industries, with alkaline liquids to replace cement in concrete by 100%, thereby developing an eco-friendly and sustainable construction material and simultaneously reducing waste disposal problem of fly ash and rice husk ash. GPC not only possesses excellent mechanical properties it also have very good durability properties. This paper presents the effect of partial

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Kumar, Satish, Jashanpreet Singh, and S. K. Mohapatra. "Role of particle size in assessment of physico-chemical properties and trace elements of Indian fly ash." Waste Management & Research: The Journal for a Sustainable Circular Economy 36, no. 11 (2018): 1016–22. http://dx.doi.org/10.1177/0734242x18804033.

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In this paper, the effect of particle size on the physico-chemical, mineralogical, and leaching behavior of Indian fly ash was studied. Experiments were carried out to study the leaching of different elements such as Mg, Cr, Zn, Pb, Mn, Fe, Cu, Co, Mo, and Ni from Indian fly ash. During the experiments, the liquid-to-solid (L/S) ratio of the fly ash was taken as 9/1, 8/2, 7/3, 3/2, 1/1, and 2/3. The effect of four different particle size ranges (below 53, 53–75, 75–106, and 106–150 μm) of fly ash was analyzed. The ASTMD-3987 method was used to analyze the presence of trace elements from fly as

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Luo, Biwei, Pengfei Li, Yan Li, et al. "Feasibility of fly ash as fluxing agent in mid- and low-grade phosphate rock carbothermal reduction and its reaction kinetics." Green Processing and Synthesis 10, no. 1 (2021): 157–68. http://dx.doi.org/10.1515/gps-2021-0008.

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Abstract The feasibility of industrial waste fly ash as an alternative fluxing agent for silica in carbothermal reduction of medium-low-grade phosphate ore was studied in this paper. With a series of single-factor experiments, the reduction rate of phosphate rock under different reaction temperature, reaction time, particle size, carbon excess coefficient, and silicon–calcium molar ratio was investigated with silica and fly ash as fluxing agents. Higher reduction rates were obtained with fly ash fluxing instead of silica. The optimal conditions were derived as: reaction temperature 1,300°C, re

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Shi, Peng, Yuan Zhang, Qingfu Sun, and Xupeng Ta. "Eluviation and Leaching of Elements from Broken Fly-Ash-Based Porous Geopolymer." Materials 14, no. 22 (2021): 6884. http://dx.doi.org/10.3390/ma14226884.

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The fly ash from powerplants used for coal mine end backfilling can effectively reduce the impact of ground fly ash accumulation on the environment. However, due to the long-term action of the overlying strata and groundwater, when the backfilling body is broken, heavy metals will also be leached, thus having an impact on the groundwater. Therefore, in this paper, the eluviation and leaching of elements from a broken fly-ash-based porous geopolymer is studied. The fly-ash-based geopolymer material was prepared to perform a dynamic eluviation and static leaching test, and it was found that the

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Yunus, Muhammad, and Muhammad Aswan. "Pengaruh Penambahan Abu Batu (Fly Ash) Terhadap Plastisitas Tanah Lempung Di Kabupaten Fakfak." Jurnal Poli-Teknologi 19, no. 1 (2020): 79–86. http://dx.doi.org/10.32722/pt.v19i1.2731.

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The road conditions in the Fakfak Regency area have suffered a lot of damage, this is related to the subgrade condition of the road in the form of clay. One method that is widely used to improve the characteristics of clay that does not fulfill the requirements as a road subgrade material is to add fly ash. Aim of this study was to determine the value of clay plasticity before and after adding rock ash with the percentage of stone ash 8%, 16%, 32%. From the results of testing on clay soaked for 7 days can reduce the liquid limit value where the largest decrease is 15,24% of the original soil o

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Indrawati, Titik, Nunung Isnaini Dwi Ningsih, and Padya Sumarwanto. "Penyisihan Krom Dalam Limbah Cair Laboratorium Dengan Metode Adsorpsi dan Fitoremediasi." Jurnal Pengelolaan Laboratorium Pendidikan 5, no. 2 (2023): 83–90. http://dx.doi.org/10.14710/jplp.5.2.83-90.

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The laboratory is one of the units that produce liquid waste which in addition to having infectious properties is also toxic, which if not managed properly will have the potential to damage the ernvironment and living things. Laboratory wastewater treatment is important because the treament and procurement of WWTPs that meet the requirements are very high cost, therefore it is neceessary to do research to find a simple but effective liquid waste treatment technology to reduce the level of liquid waste parameters, easy to make, using local materials, and the price is affordable. This study aims

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Pan, Si Wei, Nian Tang, Jiang Jun Hu, Ji Fu Kuang, Min Qi, and Kai Ye. "Experimental Study on the Spray of Mercury Removal Performance of Flue Gas Desulfurization Wastewater." Advanced Materials Research 807-809 (September 2013): 1483–88. http://dx.doi.org/10.4028/www.scientific.net/amr.807-809.1483.

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For coal-fired power plant boiler flue gas desulfurization wastewater’s actual spraying proposed combination bag house dust while mercury removal process. Experimental study of the coal-fired boiler flue gas spraying chlorine ions and other halogens desulfurization wastewater modified fly ash flue gas mercury performance. Studies showed that desulfurization wastewater fly ash on chloride ion enhanced oxidation of elemental mercury, with the increase in the amount sprayed desulfurization wastewater, flue gas mercury capacity increased. Desulfurization wastewater add another halogen element can

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Zhang, Hai Ying, and Shu Zhen Li. "Chemical Extraction of Heavy Metals from the Ash Using Perchloric Acid." Applied Mechanics and Materials 459 (October 2013): 3–6. http://dx.doi.org/10.4028/www.scientific.net/amm.459.3.

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Elementary compositions of municipal solid waste incineration (MSWI) fly ash was analyzed. In addition, influence of perchloric acid concentration and liquid to solid ratio on removal efficiency of the four heavy metals was investigated. It was found that there are 11 major elements in fly ash, with content over 1%, and content of them follows sequence of O > Ca > Si > Cl > Al > Fe > Na > S > C > Mg. These major elements account for around 97.5~98.7% of the ash. Removal ratio of Zn, Pb, Cd and Cu followed the decreasing sequence of Zn > Pb > Cd >Cu for acid

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Hidayati, Nur, Titik Pujiati, Elfrida B. Prihandini, and Herry Purnama. "Synthesis of Solid Acid Catalyst from Fly Ash for Eugenol Esterification." Bulletin of Chemical Reaction Engineering & Catalysis 14, no. 3 (2019): 683. http://dx.doi.org/10.9767/bcrec.14.3.4254.683-688.

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A series of fly ash-based heterogeneous acid catalysts were prepared by chemical and thermal treatment. Fly ash was chemically activated using sulfuric acid and followed by thermal activation. Characterization methods of XRD, BET, SEM-EDX, and the performance in esterification of eugenyl acetate production was carried out to reveal the physical and chemical characteristics of prepared catalysts. Activated catalyst showed high silica content (96.5%) and high BET surface area of 70 m2.g-1. The catalyst was proven to be highly active solid acid catalyst for liquid phase esterification of eugenol

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Lu, Cheng-Gong, Chu-Jie Jiao, Xiu-Cheng Zhang, Wen-Cong Lin, and Xue-Fei Chen. "Fly Ash-Supported Photocatalysts: Synthesis, Applications, and Advances in Modification Technology." Crystals 15, no. 3 (2025): 223. https://doi.org/10.3390/cryst15030223.

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Fly ash, a primary solid waste product of coal combustion, poses severe threats to human health and the environment due to its massive accumulation. Leveraging the modified porous structure and engineered adsorptive properties of fly ash, its integration with nano-photocatalytic materials can achieve dispersion and stabilization of the photocatalyst, significantly enhancing photocatalytic activity while enabling a synergistic effect between adsorption and photocatalysis. This paper focuses on the issue of agglomeration in semiconductor photocatalytic materials and briefly reviews the preparati

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Bautista-Ruiz, J., W. A. Bautista-Ruiz, M. Diaz-Lagos, and S. A. Martinez-Ovalle. "Fly ash as to solidify liquid radioactive waste." Journal of Physics: Conference Series 1708 (December 2020): 012014. http://dx.doi.org/10.1088/1742-6596/1708/1/012014.

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Zhang, Qiang, and Gao Hui Wu. "Microstructure and Compression Behavior of Cenosphere Filled Aluminum Syntactic Foams." Materials Science Forum 706-709 (January 2012): 704–8. http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.704.

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Aluminum syntactic foams were fabricated by pressure-inﬁltrating liquid pure aluminum into packed preforms of cenosphere fly ash. The morphology, true density and porosity of fly ash microballoons were characterized. The microstructure of the syntactic foams demonstrated uniform distribution of the microballoons in the aluminum matrix and seldom infiltration of cenosphere fly ash. These foams were subjected to quasi-static uniaxial compression tests and behaved like high strength aluminum foams under compressive deformation, exhibiting an extended plateau region in the stress–strain curves. Wi

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