利用海滨废物生物炭生产可持续水泥和地聚合物砂浆,用于人工鱼礁

IF 5.8 2区 生物学 Q1 AGRICULTURAL ENGINEERING
Tanaporn Thapsamut , Attawut Khantavong , Wachirah Jaingam , Thon Thamrongnawasawat , Teerapong Duangdee , Prysathryd Sarabhorn , Chinnathan Areeprasert
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引用次数: 0

摘要

生物质废弃物的可持续管理是一个日益重要的问题,海滨废弃物的问题及其价值潜力仍未得到充分探讨。本研究通过评估BSW产生的生物炭作为人工礁应用中水泥和地聚合物砂浆的部分替代材料来探索这一差距。炭化过程中BSW炭的产率为43.47%。在试验配方中,含有90%粉煤灰(FA)和10%粉煤灰(90FA10BSW)的地聚合物砂浆抗压强度最高,达到37.73 MPa,显著优于对照水泥砂浆(CM100, 22.51 MPa)和粉煤灰水泥砂浆(90CM10BSW, 16.29 MPa)。堆积密度也有类似的趋势(分别为2250、2120和2080 kg/m3)。90FA10BSW在28天内的强度增加幅度为24.56%。与水泥基砂浆(10.2-10.7)相比,地聚合物砂浆在海水中的pH值也更低(7-8),突出了更强的环境相容性。90CM10BSW的初始定殖量最高,90FA10BSW在12周后观察到。尽管BSW具有异质性,但这些研究结果表明,BSW炭可能是一种可行的低影响添加剂,不仅可以提高机械性能,还可以促进海洋栖息地的形成,支持循环经济原则和沿海废物增值的蓝碳策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Sustainable cement and geopolymer mortars production incorporating beachside waste biochar for artificial reef applications
The sustainable management of biomass waste is a growing priority, problem of beachside waste (BSW) and its valorization potential remains underexplored. This study explored this gap by evaluating biochar produced from BSW as a partial replacement material in cement and geopolymer mortars for artificial reef applications. The carbonization process yielded 43.47 % of BSW char. Among the tested formulations, a geopolymer mortar comprising 90 % coal fly ash (FA) and 10 % BSW char (90FA10BSW) achieved the highest compressive strength at 37.73 MPa—significantly outperforming both control cement mortar (CM100, 22.51 MPa) and cement mortar with BSW char (90CM10BSW, 16.29 MPa). Bulk densities followed a similar trend (2250, 2120, and 2080 kg/m3, respectively). Strength gains with curing was evident, with a 24.56 % increase observed in 90FA10BSW over 28 day. Geopolymer mortars also exhibited lower pH levels in seawater (7–8) compared to cement-based mortars (10.2–10.7), highlighting greater environmental compatibility. Initial microbial colonization was highest in 90CM10BSW was observed on 90FA10BSW after 12 weeks. Despite the heterogeneity of BSW, these findings suggested that the BSW char could be a viable, low-impact additive that not only enhanced mechanical performance but also promoted marine habitat formation, supporting circular economy principles and blue carbon strategies in coastal waste valorization.
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来源期刊
Biomass & Bioenergy
Biomass & Bioenergy 工程技术-能源与燃料
CiteScore
11.50
自引率
3.30%
发文量
258
审稿时长
60 days
期刊介绍: Biomass & Bioenergy is an international journal publishing original research papers and short communications, review articles and case studies on biological resources, chemical and biological processes, and biomass products for new renewable sources of energy and materials. The scope of the journal extends to the environmental, management and economic aspects of biomass and bioenergy. Key areas covered by the journal: • Biomass: sources, energy crop production processes, genetic improvements, composition. Please note that research on these biomass subjects must be linked directly to bioenergy generation. • Biological Residues: residues/rests from agricultural production, forestry and plantations (palm, sugar etc), processing industries, and municipal sources (MSW). Papers on the use of biomass residues through innovative processes/technological novelty and/or consideration of feedstock/system sustainability (or unsustainability) are welcomed. However waste treatment processes and pollution control or mitigation which are only tangentially related to bioenergy are not in the scope of the journal, as they are more suited to publications in the environmental arena. Papers that describe conventional waste streams (ie well described in existing literature) that do not empirically address ''new'' added value from the process are not suitable for submission to the journal. • Bioenergy Processes: fermentations, thermochemical conversions, liquid and gaseous fuels, and petrochemical substitutes • Bioenergy Utilization: direct combustion, gasification, electricity production, chemical processes, and by-product remediation • Biomass and the Environment: carbon cycle, the net energy efficiency of bioenergy systems, assessment of sustainability, and biodiversity issues.
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