Feasibility study on using incineration fly ash from municipal solid waste to develop high ductile alkali-activated composites

Kan, Lili; Shi, Ruo-xin; Zhao, Yujing; Duan, Xinzhi; Wu, Min

doi:10.1016/j.jclepro.2020.120168

Cited by 60 publications

(9 citation statements)

References 43 publications

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“…Any more replacement of the fly ash with MSWIFA caused clear reduction in the compressive strength, the reduction reached up to 46% compared to the control specimen in the case of 20% replacement ratio. Similar results were reported in the literature [4,5]. On the other hand, replacement 5% of the fly ash content with MSWIBA marginally reduced the compressive strength of the binder by 3%.…”

Section: Mechanical Strengthssupporting

confidence: 91%

“…Accordingly, an effective way to recycle these wastes become necessary all over the world. The traditional treatment solutions of the MSW include recycling, landfilling, or incineration [3][4][5]. Among the aforementioned solutions, landfilling is the conventional technique that globally used to deal with these wastes.…”

Section: Introductionmentioning

confidence: 99%

“…Among the aforementioned solutions, landfilling is the conventional technique that globally used to deal with these wastes. However, landfilling MSW owns many drawbacks, such as possible contaminating water and soil, greenhouse gas emission, and limited available spaces for landfill in most countries [4]. These drawbacks and the environmental awareness encourage the nations to look for more practical and sustainable techniques to get rid of these wastes.…”

Section: Introductionmentioning

confidence: 99%

“…As the alkali-activated (geopolymer) materials showed excellent potential to serve as heavy metals immobilizing agent, most of the studies focused on investigating the ability of these composites to stabilize these hazardous materials. Little focus has been given to investigate the mechanical properties of the produced geopolymers [3,4]. Moreover, the MSWI ashes have been mainly used as source materials and the attention was paid to investigate the effect of the synthesis parameters on the heavy metal solidification and stabilization efficiency.…”

Section: Introductionmentioning

confidence: 99%

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Sustainable alkali-activated binders with municipal solid waste incineration ashes as sand or fly ash replacement

Irshidat

Al‐Nuaimi

Rabie

2022

J Mater Cycles Waste Manag

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The present study investigates the feasibility of using two types of municipality solid wastes incineration ashes, namely, fly ash and bottom ash in the production of sustainable alkali-activated binder. The ashes are collected from the incineration plant and characterized to determine their particle size distribution, specific gravity, chemical composition, and heavy metals content. The ashes are then used as either fly ash or sand replacement with five replacement ratios 0%, 5%, 10%, 15%, and 20% to produce the binder. The produced binder are characterized in terms of strength, workability, density, water absorption, thermal conductivity and stability, chemical composition, and heavy metals content. The results reflect the ability of producing sustainable alkali-activated binder with small dosage of MSWI ashes as either fly ash or sand replacement without negatively affecting its strength, workability, density, and water absorption. The ashes enhance the thermal insulation capability of the binder.

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Section: Mechanical Strengthssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Sustainable alkali-activated binders with municipal solid waste incineration ashes as sand or fly ash replacement

Irshidat

Al‐Nuaimi

Rabie

2022

J Mater Cycles Waste Manag

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“…Recently, various researches showed great capacity of fly ash (FA) based adsorbent for the removal of methylene blue dye, and metals such as Cu 2+ , Cr 3+ , Cd 2+ and Pb 2+ [17,32,33]. Yet very few articles have investigated the utilization of geopolymers based on MSW on the removal of dyes from aqueous media [25,[34][35][36][37][38][39][40][41][42].…”

Section: Introductionmentioning

confidence: 99%

Application of geopolymers synthesized from incinerated municipal solid waste ashes for the removal of cationic dye from water

et al. 2020

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In this study, municipal solid waste bottom ash (MSW-BA) and fly ash (MSW-FA) were used as a source of aluminosilicate to prepare geopolymer (GEO) adsorbents (GEO-MSWBA and GEO-MSWFA) for the removal of methylene blue (MB) from water. The effects of temperature, pH, and initial concentration on the MB adsorption onto GEO-MSWBA and GEO-MSWFA were evaluated. The adsorption isotherms parameters and thermodynamics were also determined. Detailed physical and chemical characterizations of the prepared adsorbents were carried out to further understand their impact on MB adsorption. The results from the scanning electron microscopy revealed a uniform granule-sphere like structure on both prepared geopolymers, which would facilitate the MB adsorption onto the adsorbents. The X-ray diffraction allowed observation of the microstructural transformations that occur after the alkaline activation. The surface areas of the GEO-MSWBA and the GEO-MSWFA were recorded as 32.78 m2/g and 4.5 m2/g, respectively. From the Fourier transform infrared, a stretching vibration of the aluminosilicate tetrahedral was observed, which indicated the success of geopolymerization. The prepared geopolymers showed a high capability of MB adsorption from an aqueous solution. The adsorption process was best suited and explained using the Langmuir isotherm model with a maximum adsorption capacity of 666.7 mg/g for the GEO-MSWBA (at 25°C) and 769.2 mg/g for the GEO-MSWFA (at 35°C). The positive value of the enthalpy (ΔHo) for the GEO-MSWBA suggested the reaction favored endothermic reaction while the negative value of entropy (ΔSo) indicated a solid/liquid random interaction. On the other hand, the negative ΔHo value for the GEO-MSWFA indicated the reaction followed an exothermic reaction causing energy to be released, the positive ΔSo value indicated a good affinity at the solid-liquid surface. The overall negative value for Gibbs free energy (ΔGo) for both adsorbents suggested the adsorption was spontaneous and feasible. It was also inferred that n- π interaction, direct and indirect hydrogen bond, and electrostatic interaction between the MB and the prepared geopolymers facilitated the adsorption process. The current study shows that the GEO-MSWBA and the GEO-MSWFA have a great potential of removing MB as a cationic dye from water without performing any sort of laborious pretreatments.

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Role of Microbes and Microbial Consortium in Solid Waste Management

Jain

Pattanaik

Padhi

et al. 2021

Environmental and Agricultural Microbiology

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Feasibility study on using incineration fly ash from municipal solid waste to develop high ductile alkali-activated composites

Cited by 60 publications

References 43 publications

Sustainable alkali-activated binders with municipal solid waste incineration ashes as sand or fly ash replacement

Sustainable alkali-activated binders with municipal solid waste incineration ashes as sand or fly ash replacement

Application of geopolymers synthesized from incinerated municipal solid waste ashes for the removal of cationic dye from water

Role of Microbes and Microbial Consortium in Solid Waste Management

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