Body fluid absorbent article processing device and body fluid absorbent article processing method

The treatment device and method for bodily fluid-absorbing articles address the challenge of high water usage and shape maintenance in plastic recycling by incorporating a collection, shape adjustment, separation, and circulation system, thereby enhancing the efficiency and sustainability of plastic reuse.

JP2025050042APending Publication Date: 2025-04-04SUMITOMO HEAVY INDUSTRIES ENVIRONMENT CO LTD +1
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Patent Information

Application Number
JP2023158613
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-09-22
Publication Date
2025-04-04

AI Technical Summary

Technical Problem

The increasing use of bodily fluid-absorbing articles, such as diapers, leads to significant water consumption during the recycling process of plastics, and there is a challenge in maintaining the appropriate shape of plastics for resource conversion.

Method used

A treatment device and method that includes a collection unit for recovering plastic, a shape adjuster for wet-based shape adjustment, a separation unit for separating solids from the treatment liquid, and a circulation unit that recirculates the fine grain side separation liquid to reduce water usage and facilitate smooth processing.

Benefits of technology

The solution reduces water consumption and ensures smooth processing of plastics in the recycling process, promoting the reuse of plastics as new resources rather than waste.

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Abstract

To provide a body fluid absorbent article processing device and a body fluid absorbent article processing method that reduce the amount of water used and facilitate smooth processing when separating and recovering plastic from the components of used body fluid absorbent products and reusing it as a resource.SOLUTION: A body fluid absorbent article processing device includes a recovery section that recovers plastic from used body fluid absorbent articles, a shape adjustment section that wet-adjusts the shape of the plastic separated in the recovery section, a separation section that separates solids contained in the processing liquid treated in the shape adjustment section, and a circulation section that supplies the fine particle separation liquid separated in the separation section to the shape adjustment section. A body fluid absorbent article processing method using this device is also provided. This will enable cost reduction and smooth processing associated with the separation, recovery and recycling of plastic from body fluid absorbent products, thereby promoting the use of plastic as a new resource.SELECTED DRAWING: Figure 2
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