Mapping Recyclability of Industrial Waste for Anthropogenic Circularity: A Circular Economy Approach

Kanwal, Qudsia; Li, Jinhui; Zeng, Xianlai

doi:10.1021/acssuschemeng.1c04139

Cited by 31 publications

(15 citation statements)

References 81 publications

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“…Emergy analysis is an emerging metric used for an industrial park (Liu et al, 2016b) and industry system (Song et al, 2013). Recyclability is adopted to measure the recycling difficulty of solid waste and helps in product eco-design (Anctil and Fthenakis, 2013;Kanwal et al, 2021;Teseletso and Adachi, 2022). A circular economy indicator system was proposed to measure the progress of one country or city (Bîrgovan et al, 2022;Geng et al, 2019).…”

Section: Metric Of Anthropogenic Circularitymentioning

confidence: 99%

Win-Win: Anthropogenic circularity for metal criticality and carbon neutrality

Zeng

2022

Front. Environ. Sci. Eng.

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Resource depletion and environmental degradation have fueled a burgeoning discipline of anthropogenic circularity since the 2010s. It generally consists of waste reuse, remanufacturing, recycling, and recovery. Circular economy and “zero-waste” cities are sweeping the globe in their current practices to address the world’s grand concerns linked to resources, the environment, and industry. Meanwhile, metal criticality and carbon neutrality, which have become increasingly popular in recent years, denote the material’s feature and state, respectively. The goal of this article is to determine how circularity, criticality, and neutrality are related. Upscale anthropogenic circularity has the potential to expand the metal supply and, as a result, reduce metal criticality. China barely accomplished 15 % of its potential emission reduction by recycling iron, copper, and aluminum. Anthropogenic circularity has a lot of room to achieve a win-win objective, which is to reduce metal criticality while also achieving carbon neutrality in a near closed-loop cycle. Major barriers or challenges for conducting anthropogenic circularity are deriving from the inadequacy of life-cycle insight governance and the emergence of anthropogenic circularity discipline. Material flow analysis and life cycle assessment are the central methodologies to identify the hidden problems. Mineral processing and smelting, as well as end-of-life management, are indicated as critical priority areas for enhancing anthropogenic circularity.

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Section: Metric Of Anthropogenic Circularitymentioning

confidence: 99%

Win-Win: Anthropogenic circularity for metal criticality and carbon neutrality

Zeng

2022

Front. Environ. Sci. Eng.

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“…过去研究发现, 可回收性(recyclability)反映了固体废物中有价资源回收的难易程度, 表征了固体废物的资源属性 [10] . 基于统计熵理论建立的资源属性评估模型, 成功应用于评价电子废物 [10] 、塑料废物 [11,12] 及光伏设备 [13] 可回收性, 或有价资源(如铜)全生命周期回收性评估 [14] 中. Kanwal等人 [15] 采用可回收性模型对工业废物中有价资源回收潜力进行评估, 将典型工业废物按回收性难易度进行分类, 用于有价资源回收优先级评价参考. 在废物环境属性研究中, Rechberger :…”

Section: 固体废物具有鲜明的资源属性和环境属性特征unclassified

“…POPs种类及含量数据来源于Zhang等人 [8] 和李强 [23] 的研究, 主要有害物质类别包括多环芳烃(polycyclic aromatic hydrocarbons, PAHs)、邻苯二甲酸酯(phthalic acid esters, PAEs)和酚类. 针对结果的敏感性分析, 本研究对可去除性方程进行蒙特卡洛模拟, 模拟次数为10000次, 所得结果为方差贡献的敏感性 [15] . 然后, 评估可去除性对统计熵、可去除等级和物质组成3种因素的敏感度 [24] : [25] .…”

Section: 固体废物具有鲜明的资源属性和环境属性特征unclassified

Accurately quantifying the detoxication of solid waste and its scientific insights: The case of typical industrial waste

Huang¹,

Li²,

Zeng³

2022

Chin. Sci. Bull.

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“…In the meantime, these wastes contain similar chemical ingredients with the raw materials in cement clinker production . Therefore, the technology of using copper tailings to prepare cement clinker is proposed, turning untreatable tailings into treasures and providing alternative raw materials for the cement industry. − Furthermore, it has been proved that this new technology can effectively improve the burnability of raw materials and reduce the calcination temperature, which is beneficial to reduce the energy consumption. , …”

Section: Introductionmentioning

confidence: 99%

Influence of Cu Doping on the Hydration of Dicalcium Silicate: A First-Principles Study

Hou

Ding

Wang

et al. 2022

ACS Sustainable Chem. Eng.

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Using copper tailings to produce cement clinker can result in Cu-doping and affects the hydration characteristics of dicalcium silicate (C 2 S). In this work, density functional theory static calculation and ab initio molecular dynamics (AIMD) simulation are used to investigate the hydration properties of Cudoping β-C 2 S. The static calculation shows that Cu-doping influences the crystal and electronic structure of β-C 2 S and leads to charge localization. Cu-doping also promotes the dissociation adsorption on the surface around the Cu atom and weakens the chemical constraint on Ca−O W and H W −O S . The AIMD simulation shows that water molecules on the Cu-doped β-C 2 S(1 0 0) surface prefer dissociation adsorption and maintain the dissociated state for a long lifetime. The local weak interactions between water and the Cu atom are enhanced, and the bond concentration of Ca/Cu−O W on the whole surface decreases. This higher hydration reactivity by introducing Cu atoms would promote the application of copper tailings and the C 2 S phase for cement green production.

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Mapping Recyclability of Industrial Waste for Anthropogenic Circularity: A Circular Economy Approach

Cited by 31 publications

References 81 publications

Win-Win: Anthropogenic circularity for metal criticality and carbon neutrality

Win-Win: Anthropogenic circularity for metal criticality and carbon neutrality

Accurately quantifying the detoxication of solid waste and its scientific insights: The case of typical industrial waste

Influence of Cu Doping on the Hydration of Dicalcium Silicate: A First-Principles Study

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