Recycling of waste glass extracted from a WTP into ceramic materials

Busch, Pâmela de Faria; Marvila, Markssuel Teixeira; Delaqua, Geovana Carla Girondi; Vieira, Carlos Maurício Fontes

doi:10.1007/s10163-022-01358-0

Cited by 8 publications

(4 citation statements)

References 45 publications

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“…Water absorption is mainly affected by firing temperatures and followed by the amount of UGW addition. The water absorption decreases with increasing UGW addition as a result of liquid phase formation and vitrification which is responsible for the closing of open pores 38 . At a low firing temperature of 1050 °C, it is observed that the water absorption is slightly decreasing at different percentages of waste addition due to the low intensity of liquid phase formation ranging from 12.19% to 9.59%.…”

Section: Resultsmentioning

confidence: 95%

“…The water absorption decreases with increasing UGW addition as a result of liquid phase formation and vitrification which is responsible for the closing of open pores. 38 At a low firing temperature of 1050 • C, it is observed that the water absorption is slightly decreasing at different percentages of waste addition due to the low intensity of liquid phase formation ranging from 12.19% to 9.59%. On the other hand, increasing the firing temperature decreases the water absorption for blank ceramic tiles at temperatures of 1050, 1100 and 1120 • C were found to be 12.19%, 10.79% and 9.97%, respectively.…”

Section: Water Absorption and Porositymentioning

confidence: 97%

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Recycling of urban glass waste in ceramic floor tiles toward sustainability

Hamid,

Maher,

Ahmed

et al. 2024

Vietnam Journal of Chemistry

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Around 21.7 million tons of urban solid waste are produced in North Africa and the Middle East. The amount of glass waste produced is 0.87 million tons. The amount of urban glass waste (UGW) produced in Egypt was 2280.8 tons per day. This paper aims to study the effect of partial replacement of UGW in the production of ceramic floor tiles to save the production cost and raw materials. The characteristics of the basic raw mixture of floor tiles and UGW were studied. The waste was collected, crushed and ground to be blended with the basic mixture in different percentages that ranged from 0 to 35%. The specimens were molded under uniaxial pressure followed by drying and firing at temperatures ranging from 1050 to 1120 °C. The characteristics of the fired specimens have been determined and compared with the International Standard Limits. The results showed that specimens containing waste ranging from 25% to 35%, fired at 1100 °C with a soaking time of 15 min have a modulus of rupture of 18.9 to 19.7 MPa, breaking strength of 600 to 613N and water absorption of 9.78% to 8.2% respectively that fulfilled the lowest requirements for the ISO 13006 for dry pressed tiles Group BIIb.

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Section: Resultsmentioning

confidence: 95%

Section: Water Absorption and Porositymentioning

confidence: 97%

Recycling of urban glass waste in ceramic floor tiles toward sustainability

Hamid,

Maher,

Ahmed

et al. 2024

Vietnam Journal of Chemistry

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“…However, the long-term leaching test indicates a potential risk to soil and groundwater [ 68 ]. As has been demonstrated in various studies, it is possible to immobilize heavy metals of solid wastes from wastewater treatment plants [ 4 , 69 ], red sludge from bauxite processing plants [ 70 ], and blast furnace slag [ 71 – 73 ] in the structure of glass [ 74 ], glass ceramics [ 75 ], and ceramic materials [ 76 ]. Likewise, introducing fly ash to ceramic production is a potential solution to lock the heavy metals of fly ash in the ceramic network.…”

Section: Properties Of Coal-fired Power Plant Fly Ashmentioning

confidence: 99%

Firing-Associated Recycling of Coal-Fired Power Plant Fly Ash

Minh

Pham

Tung

et al. 2023

Journal of Analytical Methods in Chemistry

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Coal-fired power plant fly ash is a global environmental concern due to its small particle size, heavy metal content, and increased emissions. Although widely used in concrete, geopolymer, and fly ash brick production, a large amount of fly ash remains in storage sites or is used in landfills due to inadequate raw material quality, resulting in a waste of a recoverable resource. Therefore, the ongoing need is to develop new methods for recycling fly ash. The present review differentiates the physiochemical properties of fly ash from two coal combustion processes: fluidized bed combustion and pulverized coal combustion. It then discusses applications that can consume fly ash without strict chemical requirements, focusing on firing-associated methods. Finally, the challenges and opportunities of fly ash recycling are discussed.

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“…During the sintering process, the organic matter reacts with oxygen to liberate gas product. The waste glass powders generated a large amount of liquid phase at high temperature, which wrap the gas to form porous structure [28,29]. As the temperature increased, the silicon oxide and alumina oxide combined to produce Kyanite, which constitutes the basic skeleton of ceramsite.…”

Section: Mechanism Of Porous Ceramsite Formationmentioning

confidence: 99%

Preparation of porous ceramsite from municipal sludge and its structure characteristics

Meng,

Cui,

Srinivasakannan

et al. 2023

Advances in Applied Ceramics: Structural, Functional and Biocer

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In this paper, the municipal sludge was used as the main raw material to prepare a kind of porous ceramsite. The porous ceramsite composition of 50 wt-% of municipal sludge, 10 wt-% of municipal solid waste incineration bottom ash, 45 wt-% of waste glass powders, sintering temperature of 900°C and holding duration of 30 min. The best of the ceramsite synthesised had 1-h water absorption capacity of 51.53%, apparent porosity of 64.14% and pore volume 0.671 mL g −1 . During the sintering process, the waste glass powders generated a large amount of liquid phase, wrapt the gas produced by organic matter, and formed a porous structure inside the ceramic particles. At the same time, the silica and aluminium were combined to form Kyanite, which constitutes the basic skeleton of the ceramic particles showing a certain strength. Besides, silicon oxide and calcium silicate generated Wollastonite improving the corrosion resistance of ceramic particles as well. The adsorption capacity of the prepared porous ceramsite modified by acid combined with sodium citrate was 3.1 mg g −1 using the prepared porous ceramsite as substrate. The adsorption kinetics of ammonia nitrogen by porous ceramics conforms to the quasi-second-order kinetic model, and the adsorption isotherm model conforms to the Langmuir model. The findings lay a theoretical foundation for the integration of resource utilisation of solid waste and later application.

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Recycling of waste glass extracted from a WTP into ceramic materials

Cited by 8 publications

References 45 publications

Recycling of urban glass waste in ceramic floor tiles toward sustainability

Recycling of urban glass waste in ceramic floor tiles toward sustainability

Firing-Associated Recycling of Coal-Fired Power Plant Fly Ash

Preparation of porous ceramsite from municipal sludge and its structure characteristics

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