One-pot wet ball-milling for waste wire-harness recycling

Kumar, Harendra; Kumagai, Shogo; Kameda, Tomohito; Saito, Yuko; Yoshioka, Toshiaki

doi:10.1007/s10163-020-01163-7

Cited by 10 publications

(5 citation statements)

References 15 publications

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“…Meanwhile, by screening different solvents 54 , butyl acetate is preferred not for the highest efficiency, but for the non-toxic and non-hazardous properties 55 . Herein, a one-pot process was successfully developed for reducing the exposure of organic solvent 9 .…”

Section: Discussionmentioning

confidence: 99%

Neural network based prediction of the efficacy of ball milling to separate cable waste materials

Han

Kumagai

et al. 2023

Commun Eng

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Material recycling technologies are essential for achieving a circular economy while reducing greenhouse gas emissions. However, most of them remain in laboratory development. Machine learning (ML) can promote industrial application while maximising yield and environmental performance. Herein, an asynchronous-parallel recurrent neural network was developed to predict the dynamic behaviour when separating copper and poly(vinyl chloride) components from the cable waste. The model was trained with six datasets (treatment conditions) at 3600 epochs. High accuracy was confirmed based on a mean-square error of 0.0015–0.0145 between the prediction and experimental results. The quantitative relationship between the input features and the separation yield was identified using sensitivity analysis. The charged weight of cables and impact energy were determined as the critical factors affecting the separation efficiency. The ML framework can be widely applied to recycling technologies to reveal the process mechanism and establish a quantitative relationship between process variables and treatment outputs.

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Section: Discussionmentioning

confidence: 99%

Neural network based prediction of the efficacy of ball milling to separate cable waste materials

Han

Kumagai

et al. 2023

Commun Eng

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“…In terms of recovery efficiency, both dry and wet milling can result in the complete stripping of PVC and copper from the 20 cm cable within 60 minutes, and wet milling further saves time. Ball milling has also been carried out at the same time when swelling was in progress, 35 and complete separation of 20 cm long cables was achieved in 40 min of wet grinding (although at a higher speed than rod milling: 25 rpm and 15 rpm), with 100% recovery of de-plasticized PVC and 85% recovery of solvent (acetone).…”

Section: Mechanical Recyclingmentioning

confidence: 99%

“…VinyLoop uses a closed-loop process, while the swelling/milling method uses distillation to recover solvents and plasticizers. Because VinyLoop is commercialized, it is ahead of the expansion/ball mill method reported by Kumar et al 35 in terms of the scale of recovery. Although both are non-traditional methods of mechanical recycling, there is no comparison between the two methods in terms of the types of waste recycling.…”

Section: Mechanical Recyclingmentioning

confidence: 99%

An overview on the recycling of waste poly(vinyl chloride)

Jiang¹,

Zhu²,

Zhu³

2023

Green Chem.

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“…To foster an environment where industries are encouraged and motivated to adopt waste utilization practices, it's imperative to have transparent and straightforward guidelines. These should be complemented by regular audits, incentives for adherence, and penalties for non-compliance, ensuring that industries have both the carrot and the stick approach to motivate waste reduction and utilization [28][29][30][31]. List of challenges and potential solutions for industrial waste utilization is tabulated (Table 5).…”

Section: Regulatory Frameworkmentioning

confidence: 99%

Waste to Wealth: A Futuristic Outlook for Waste Utilization in India

Balaganesh,

Vasudevan,

Natarajan

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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India, having one of the largest agro-basedeconomies in the world, produces a significant amount of wastes, both from farming activities and agro-based industries. These wastestreams pose critical environmental and public health challenges that necessitate efficient management strategies.The present review examines the current status and future perspectives of waste utilization in India. We have attempted to criticallyidentify the most prominent features of effective waste management and the constraints in resource recovery for achieving the sustainable development goals. This review provides an overview of the prevailing practices in waste utilization, highlighting various methods employed and the types of industries that can benefit from this approach. In particular, techniques such as co-processing, recycling, waste-to-energy conversion, and industrial symbiosis to be extensivley made accessible to maximize the value derived from wastes. Some of the major challenges we identified include limited awareness, inadequate infrastructure, and regulatory gaps, which can significantly hinder the optimal utilization plans. To address these challenges, the review proposes potential strategies such as awareness campaigns, infrastructure development, technology transfer, and policy strengthening both at community and organizational levels. The findings of this review canshed light on the current landscape of waste utilization in India and present pathways for a more sustainable and efficient approach in the near future.

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One-pot wet ball-milling for waste wire-harness recycling

Cited by 10 publications

References 15 publications

Neural network based prediction of the efficacy of ball milling to separate cable waste materials

Neural network based prediction of the efficacy of ball milling to separate cable waste materials

An overview on the recycling of waste poly(vinyl chloride)

Waste to Wealth: A Futuristic Outlook for Waste Utilization in India

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