Synthesis of Zeolites from Coal Fly Ash for Removal of Harmful Gaseous Pollutants: A Review

Ren, Xiaoyu; Qu, Ruiyang; Liu, Shaojun; Zhao, Haitao; Wu, Weihong; Song, Hao; Zheng, Chenghang; Wu, Xuecheng; Gao, Xiang

doi:10.4209/aaqr.2019.12.0651

Cited by 78 publications

(33 citation statements)

References 143 publications

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“…Researchers have identified key applications for FA in the future based on the yearly time series data by recognizing a pattern of development using regression analysis [ 274 , 275 ] and the amount of FA to be used in choice and specific applications have been predicted, as shown in Figure 17 [ 92 , 276 ]. The greatest use of ash, to the amount of 44.19%, was anticipated in the concrete and cement industries in 2020–2021.…”

Section: Utilizations Of Famentioning

confidence: 99%

Fly Ash-Based Eco-Efficient Concretes: A Comprehensive Review of the Short-Term Properties

et al. 2021

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Development of sustainable concrete as an alternative to conventional concrete helps in reducing carbon dioxide footprint associated with the use of cement and disposal of waste materials in landfill. One way to achieve that is the use of fly ash (FA) as an alternative to ordinary Portland cement (OPC) because FA is a pozzolanic material and has a high amount of alumina and silica content. Because of its excellent mechanical properties, several studies have been conducted to investigate the use of alkali-activated FA-based concrete as an alternative to conventional concrete. FA, as an industrial by-product, occupies land, thereby causing environmental pollution and health problems. FA-based concrete has numerous advantages, such as it has early strength gaining, it uses low natural resources, and it can be configurated into different structural elements. This study initially presents a review of the classifications, sources, chemical composition, curing regimes and clean production of FA. Then, physical, fresh, and mechanical properties of FA-based concretes are studied. This review helps in better understanding of the behavior of FA-based concrete as a sustainable and eco-friendly material used in construction and building industries.

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Section: Utilizations Of Famentioning

confidence: 99%

Fly Ash-Based Eco-Efficient Concretes: A Comprehensive Review of the Short-Term Properties

et al. 2021

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“…SOx, NOx, COx, volatile organic compounds (VOCs), and Hg vapor directly and indirectly harm the atmospheric environment and human health by contributing to the formation of photochemical smog, acid rain, and haze and posing risks of potential toxicity (e.g., carcinogenicity) [ 20 ]. Wang and Yuan tested the impact of air pollution control on ecological total factor energy efficiency and the moderating effect of ownership structure by using panel data of 37 subindustries of China's industrial sectors from 2003 to 2014.…”

Section: Literature Reviewmentioning

confidence: 99%

A Cost Allocation Decision Model for Air Pollution Control

Qin

Chang-yuan

2022

Computational Intelligence and Neuroscience

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Air pollution control as the background of a cost allocation method is based on the Shapley value to determine the core stakeholder, so fair pollution control projects and the establishment of the atmospheric pollution of governance cost allocation model are put forward for the solution of air pollution coordinated by the government supervision and the atmospheric pollution control collaborative group. The results show that the cost allocation model of air pollution control based on Shapley value is more reasonable, and the cost of stakeholders is reduced to a certain extent, and the risk of the participants is reduced so that it maximizes social benefits.

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“…In order to assess the effect of fly ash quality on the zeolite made, the use of various starting materials was investigated. The hydrothermal process includes the dissolution of fly ash in an alkaline solution and the synthesis by thermal treatment of zeolite materials [17]. Formation of zeolite performed according to the following chemical reaction:…”

Section: Zeolite Synthesis Conditionmentioning

confidence: 99%

Synthesized Zeolite from Coal Fly Ash: Effect of Furnace and Acidic Pretreatment on the Characteristic

Herpi¹,

Yunarti²,

Saefumillah³

2021

Proceedings of the 6th Asia-Pacific Education and Science Conference, AECon 2020, 19-20 December 2020, Purwokerto, Indonesia

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Waste management is a widespread problem all across the world. Fly ash is one of the wastes generated in a large amount, where disposal of fly ash by landfill takes up agricultural lands and also causes serious problems in the respiratory system. Meanwhile, fly ash contains high silica-alumina, so that it can be used as a raw material to synthesize zeolite. In this work, fly ash from industrial synthesized into zeolite type NaP1, and the effectiveness of furnace and acidic pretreatment was studied. The synthesis of class F fly ash from Indonesia was subjected to a 36-hour hydrothermal reaction with sodium hydroxide. Synthesized zeolite was characterized by X-ray diffractometry to obtain the crystal structure of the zeolite, X-ray fluorescence to obtain the mineral composition, and SEM to obtain morphological study XRF data shows that pretreatment of fly ash has no significant effect on the content of fly ash itself, however, when fly ash was converted into zeolites, the resulting zeolites had a higher crystallinity compared to fly ash without pretreatment. It was found that the most effective pretreatment was when zeolite formed from fly ash with acidic pretreatment using 20 wt% HCl at 80 oC for 2 hours.

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Synthesis of Zeolites from Coal Fly Ash for Removal of Harmful Gaseous Pollutants: A Review

Cited by 78 publications

References 143 publications

Fly Ash-Based Eco-Efficient Concretes: A Comprehensive Review of the Short-Term Properties

Fly Ash-Based Eco-Efficient Concretes: A Comprehensive Review of the Short-Term Properties

A Cost Allocation Decision Model for Air Pollution Control

Synthesized Zeolite from Coal Fly Ash: Effect of Furnace and Acidic Pretreatment on the Characteristic

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