Accelerating circular economy solutions to achieve the 2030 agenda for sustainable development goals

Khajuria, Anupam; Atienza, Vella A.; Chavanich, Suchana; Wilts, Henning; Islam, Ishrat; Kral, Ulrich; Li, Meng; Liu, Xiao; Murthy, Indu K.; Oyedotun, Temitope D. Timothy; Verma, Prabhat; Xu, Ganlin; Zeng, Xianlai; Li, Jinhui

doi:10.1016/j.cec.2022.100001

Cited by 92 publications

(55 citation statements)

References 8 publications

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“…Such wastewater is rich in pigments, varnishes as well as solvents, which are based on polymers and coagulants. Due to the high content of chemicals, an environmental hazard arises and this requires special wastewater management [41]. In the experiments, it was estimated that during the effective consumption of chemicals in the process, the content of chemicals in the finished product is 15% and thus up to 85% goes into the wastewater [42].…”

Section: Sewage Generated During Tanning Processesmentioning

confidence: 99%

The Circular Economy in the Management of Waste from Leather Processing

et al. 2023

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The tanning industry generates significant amounts of solid waste and post-production wastewater, which should be managed in accordance with the principles of the circular economy. Waste is generated at various technological stages of production. This comprises mainly solid waste and leachate. A comprehensive solution to the problem of disposal of this waste is very important from economic and environmental points of view. This work presents research for a technological production line designed for the comprehensive processing of post-production residues. In the present paper, the authors present an analysis related to the possibility of processing leather flesh side (mizdra) as a substrate for methane fermentation. The study showed an increased biogas production from solid waste after enzymatic hydrolysis up to 248 Nm3/Mg. Preliminary research on the system designed for pre-treatment of sewage from the technological line is also presented. The study showed a COD reduction of more than 30%. The possibility of energy management of the solid fraction directly from the processes carried out is demonstrated.

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Section: Sewage Generated During Tanning Processesmentioning

confidence: 99%

The Circular Economy in the Management of Waste from Leather Processing

et al. 2023

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“…When comparing the take-make-consume-dispose policy of the linear economy model, the made-to-be-made-again policy of the CE model has several opportunities to not only reduce the requirement of virgin resources drastically but also to rethink the whole process of managing the resources and wastes, redesign the product in such a manner that it eventually becomes cost-effective, create jobs and facilitates new and innovative technologies that produce environmentally-friendly exercises. CE approaches focus on the sustainable management of resources in which the components of the materials are reused, shared, refurbished, repaired, recycled, and remanufactured to establish a closed-loop system and reduce the use of natural resources (Khajuria et al, 2022).…”

Section: Circular Economy and Implementation Of Sdgmentioning

confidence: 99%

Contribution of Circular Economy on Achieving Sustainable Development

Elimam¹

2023

IBR

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Being the world’s largest oil states and highest per capita income recorded, Qatar and Kuwait are the two most developing countries in the world but the situation of the Circular Economy and its implementation is not taken into consideration. The study aims to estimate the impact of the contribution of the circular economy (CE) on sustainability development. In this research, A self-generated questionnaire was sent to 300 companies situated in Qatar and Kuwait. This is a closed-ended survey. A Random Sampling technique is used to collect the data. The findings indicate that awareness on the subject of circular economy policies is not sufficient while the policies and laws to maintain sustainability are present. The communities are sufficiently using some of the strategies to implement CE for maintaining sustainability but recycling is not done properly. The study implies that the betterment of law-and-order situations in the community is required and awareness campaigns and tactics should be focused on.

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“…[4] These impacts should be alleviated through circular economy approaches that require efficient recycling of retired battery materials. [5,6] The recycling technologies for EVs batteries, however, are still in their infancy, which may pose a challenge in achieving circularity goals. The use of EVs is increasing rapidly worldwide.…”

Section: Introductionmentioning

confidence: 99%

Challenges in Recycling Spent Lithium‐Ion Batteries: Spotlight on Polyvinylidene Fluoride Removal

Wang

Liu

et al. 2023

Global Challenges

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In the recycling of retired lithium‐ion batteries (LIBs), the cathode materials containing valuable metals should be first separated from the current collector aluminum foil to decrease the difficulty and complexity in the subsequent metal extraction. However, strong the binding force of organic binder polyvinylidene fluoride (PVDF) prevents effective separation of cathode materials and Al foil, thus affecting metal recycling. This paper reviews the composition, property, function, and binding mechanism of PVDF, and elaborates on the separation technologies of cathode material and Al foil (e.g., physical separation, solid‐phase thermochemistry, solution chemistry, and solvent chemistry) as well as the corresponding reaction behavior and transformation mechanisms of PVDF. Due to the characteristic variation of the reaction systems, the dissolution, swelling, melting, and degradation processes and mechanisms of PVDF exhibit considerable differences, posing new challenges to efficient recycling of spent LIBs worldwide. It is critical to separate cathode materials and Al foil and recycle PVDF to reduce environmental risks from the recovery of retired LIBs resources. Developing fluorine‐free alternative materials and solid‐state electrolytes is a potential way to mitigate PVDF pollution in the recycling of spent LIBs in the EV era.

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Accelerating circular economy solutions to achieve the 2030 agenda for sustainable development goals

Cited by 92 publications

References 8 publications

The Circular Economy in the Management of Waste from Leather Processing

The Circular Economy in the Management of Waste from Leather Processing

Contribution of Circular Economy on Achieving Sustainable Development

Challenges in Recycling Spent Lithium‐Ion Batteries: Spotlight on Polyvinylidene Fluoride Removal

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