Poultry litter ash potential as a replacement material in cementitious systems: a state-of-the-art review

IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Journal of Material Cycles and Waste Management Pub Date : 2024-09-11 DOI:10.1007/s10163-024-02058-7
J. R. Nahuat-Sansores, J. C. Cruz, M. Z. Figueroa-Torres, M. P. Gurrola, C. A. Ramírez-Pinto, K. Garcia-Uitz
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Abstract

Poultry litter (PL) disposal is a major concern for poultry farms around the world, it is estimated that millions of metric tons of this waste are generated globally and as consumption rates increase so does the associated waste; the usual means of disposal include soil fertilization and livestock feeding, however, these disposal strategies are linked with hazardous environmental consequences: eutrophication, ammonia (NH3) emissions and leaching of heavy metals. New environmentally friendly processes have been developed in order to reduce the impact of poultry litter and provide new means of revalorization: proper management and selection, elemental recovery (P, K and N) and its use as biomass for energy generation. One of the most promising revalorization opportunities for this ash residue lies in the development of greener cementitious composites in the pursuit of net-zero energy projects by reducing the carbon footprint of the modified concrete by replacing cement or aggregates, given the typical chemical composition (> 40% CaO) of poultry litter ash (PLA). The present review deals with PLA potential to replace cement or fine aggregates in cementitious composites, how this substitution affects the transport properties of the resultant composite and the effects on strength development and future considerations to be further investigated.

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禽粪灰作为水泥基系统替代材料的潜力:最新进展综述
家禽粪便(PL)处理是全球家禽养殖场关注的一个主要问题,据估计,全球产生的家禽粪便达数百万吨,随着消耗量的增加,相关废物也在增加;通常的处理方式包括土壤施肥和牲畜饲养,然而,这些处理策略都会对环境造成危害:富营养化、氨(NH3)排放和重金属浸出。为了减少家禽粪便的影响,人们开发了新的环保工艺,并提供了新的再资源化手段:适当的管理和选择、元素回收(P、K 和 N)以及将其用作生物质能源。鉴于家禽粪便灰烬(PLA)的典型化学成分(CaO 占 40%),这种灰烬残渣最有前景的再利用机会之一在于开发更环保的水泥基复合材料,通过替代水泥或集料来减少改性混凝土的碳足迹,从而实现净零能耗项目。本综述探讨了聚乳酸在水泥基复合材料中替代水泥或细集料的潜力、这种替代如何影响最终复合材料的运输特性、对强度发展的影响以及今后有待进一步研究的问题。
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来源期刊
CiteScore
5.30
自引率
16.10%
发文量
205
审稿时长
4.8 months
期刊介绍: The Journal of Material Cycles and Waste Management has a twofold focus: research in technical, political, and environmental problems of material cycles and waste management; and information that contributes to the development of an interdisciplinary science of material cycles and waste management. Its aim is to develop solutions and prescriptions for material cycles. The journal publishes original articles, reviews, and invited papers from a wide range of disciplines related to material cycles and waste management. The journal is published in cooperation with the Japan Society of Material Cycles and Waste Management (JSMCWM) and the Korea Society of Waste Management (KSWM).
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