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Frontiers of Environmental Science & Engineering

ISSN 2095-2201

ISSN 2095-221X(Online)

CN 10-1013/X

邮发代号 80-973

2018 Impact Factor: 3.883

Frontiers of Environmental Science & Engineering  2023, Vol. 17 Issue (2): 23   https://doi.org/10.1007/s11783-023-1623-2
  本期目录
Win-Win: Anthropogenic circularity for metal criticality and carbon neutrality
Xianlai Zeng()
State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
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Abstract

● Anthropogenic circularity science is an emerging interdisciplinary field.

● Anthropogenic circularity was one effective strategy against metal criticality.

● Carbon neutrality is becoming the new industry paradigm around the world.

● Growing circularity could potentially minimize the CO2 emission.

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.

Key wordsAnthropogenic circularity    Material flow analysis    Criticality    Carbon neutrality    Solid waste    Circular economy
收稿日期: 2022-05-02      出版日期: 2022-09-08
Corresponding Author(s): Xianlai Zeng   
 引用本文:   
. [J]. Frontiers of Environmental Science & Engineering, 2023, 17(2): 23.
Xianlai Zeng. Win-Win: Anthropogenic circularity for metal criticality and carbon neutrality. Front. Environ. Sci. Eng., 2023, 17(2): 23.
 链接本文:  
https://academic.hep.com.cn/fese/CN/10.1007/s11783-023-1623-2
https://academic.hep.com.cn/fese/CN/Y2023/V17/I2/23
Fig.1  
Fig.2  
Fig.3  
Fig.4  
Fig.5  
Fig.6  
Year Old scrap generation (Mt) (Glöser et al., 2013) Old scrap generation (Mt) (Ali et al., 2017) Total production (Mt)* Ratio 1 (%) Ratio 2 (%)
1960 1.5 1.5 4.64 32 32
1965 1.9 1.8 5.59 34 32
1970 2.3 2.1 6.633 35 32
1975 3 2.5 7.867 38 32
1980 3.5 3 7.656 46 39
1985 4.3 3.5 8.088 53 43
1990 5.2 4.5 8.95 58 50
1995 6.1 5.5 10 61 55
2000 7.2 6.5 13.2 55 49
2005 8.5 7.8 15 57 52
2010 10 9.5 15.9 63 60
Tab.1  
  
Terminology Definition
Anthropogenic circularity Anthropogenic circularity is the human activity to enclose the material circular utilization, which is mainly consisting of reuse, remanufacturing, recycling, and recovery.
Anthropocene The anthropocene is the current geological age, viewed as the period during which human activity has been the dominant influence on our earth.
Anthroposphere The anthroposphere (also referred as technosphere) is that part of the environment that is made or modified by human for use in human activity and human habitats.
Carbon neutrality Carbon neutrality is a state of net-zero carbon dioxide emissions.
Circular economy A circular economy is an economic model designed to minimize resource input, as well as waste and emission production.
Criticality Criticality is the quality, state, or degree of being of the highest importance.
Emergy analysis Emergy analysis is a type of embodied energy analysis that can provide common units for comparison of environmental and economic goods by summing the energy of one type required directly or indirectly for production of goods.
Home scrap Home scrap is the originated scrap that is utilized within the plant.
New scrap New scrap is the solid waste generated from manufacturing process.
Old scrap Old scrap is the solid waste generated from product consumption.
Recyclability Recyclability is the theoretical probability of an item's being recycled.
Urban mining Urban mining is the process of reclaiming raw materials from waste products sent to landfill.
  
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