{"id":205,"date":"2020-09-18T21:31:08","date_gmt":"2020-09-19T04:31:08","guid":{"rendered":"http:\/\/wordpress.kpu.ca\/birkzukowsky\/?p=205"},"modified":"2020-10-21T23:07:08","modified_gmt":"2020-10-22T06:07:08","slug":"pla-recycling-mechanical-vs-chemical-vs-compost","status":"publish","type":"post","link":"https:\/\/wordpress.kpu.ca\/birkzukowsky\/2020\/09\/18\/pla-recycling-mechanical-vs-chemical-vs-compost\/","title":{"rendered":"PLA Recycling: Mechanical vs. Chemical vs. Compost"},"content":{"rendered":"\n

After PLA is 3D printed, it can be recycled and used to 3D print again, providing it has not been combined with another substance like super glue or non-water based paint. There are three methods of recycling PLA: mechanical recycling, chemical recycling, and composting. In order to quantify and compare these methods, two different systems are used to compare the three methods of PLA recycling; the restitution product system and the credit product system. <\/p>\n\n\n\n\n\n\n\n

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PLA Life Cycle<\/em>
Cosate De Andrade, M. F., Souza, P. M. S., Cavalett, O., & Morales, A. R., 2016<\/em><\/figcaption><\/figure><\/div>\n\n\n\n
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There are three routes for PLA after being used by the consumer: recycling for reuse, recycling for composting, or the landfill. This project will focus on the Product System aspect of this diagram, from the collection and transportation of post-consumer plastic (PCP) to the recycled PLA product.<\/p>\n\n\n\n

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Mechanical Recycling<\/strong><\/p>\n\n\n\n

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Mechanical Recycling Process
Cosate De Andrade, M. F., Souza, P. M. S., Cavalett, O., & Morales, A. R., 2016<\/figcaption><\/figure><\/div>\n\n\n\n

Chemical Recycling<\/strong><\/p>\n\n\n\n

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Chemical Recycling Process<\/em> (Stage 1: Hydrolysis)
Cosate De Andrade, M. F., Souza, P. M. S., Cavalett, O., & Morales, A. R., 2016<\/em><\/figcaption><\/figure><\/div>\n\n\n\n
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Chemical Recycling Process (Stage 2: Polymerization)<\/em>
Cosate De Andrade, M. F., Souza, P. M. S., Cavalett, O., & Morales, A. R., 2016<\/em><\/figcaption><\/figure><\/div>\n\n\n\n

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Composting<\/strong><\/p>\n\n\n\n

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Composting Process<\/em>
Cosate De Andrade, M. F., Souza, P. M. S., Cavalett, O., & Morales, A. R., 2016<\/em><\/figcaption><\/figure><\/div>\n\n\n\n
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Restitution Product System<\/strong><\/p>\n\n\n\n

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Restitution Product System<\/em>
Cosate De Andrade, M. F., Souza, P. M. S., Cavalett, O., & Morales, A. R., 2016<\/em><\/figcaption><\/figure><\/div>\n\n\n\n

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Credit Product System<\/strong><\/p>\n\n\n\n

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Credit Product System<\/em>
Cosate De Andrade, M. F., Souza, P. M. S., Cavalett, O., & Morales, A. R., 2016<\/em><\/figcaption><\/figure><\/div>\n\n\n\n

Summary<\/strong><\/p>\n\n\n\n

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Environmental Relative Impact (Restitution Product System)
Cosate De Andrade, M. F., Souza, P. M. S., Cavalett, O., & Morales, A. R., 2016<\/em><\/figcaption><\/figure><\/div>\n\n\n\n

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Environmental Relative Impact (Credit Product System)
Cosate De Andrade, M. F., Souza, P. M. S., Cavalett, O., & Morales, A. R., 2016<\/em><\/figcaption><\/figure><\/div>\n\n\n\n

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Electricity Consumption – Mechanical (a) vs. Chemical (b)<\/em>
Cosate De Andrade, M. F., Souza, P. M. S., Cavalett, O., & Morales, A. R., 2016<\/em><\/figcaption><\/figure><\/div>\n\n\n\n

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Energy Depletion Comparison<\/em>
Cosate De Andrade, M. F., Souza, P. M. S., Cavalett, O., & Morales, A. R., 2016<\/em><\/figcaption><\/figure><\/div>\n\n\n\n

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My Two Sent.’s:<\/strong> I prefer the restitution product system because it instills the mentality of recycling as the default process, whereas the credit product system aligns with the throw it away<\/em> mentality as the default and recycling as a bonus. We need to shift from the credit product system mentality to the restitution product mentality to create more awareness about the biodegradable and recyclable options of PLA.<\/p>\n\n\n\n

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Cosate De Andrade, M. F., Souza, P. M. S., Cavalett, O., & Morales, A. R. (July, 2016). Life Cycle Assessment of Poly(Lactic Acid) (PLA): Comparison Between Chemical Recycling, Mechanical Recycling and Composting. Journal of Polymers and the Environment, 24<\/em>(4), 372-384. https:\/\/doi.org\/10.1007\/s10924-016-0787-2<\/a><\/p>\n\n\n\n

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THIS POST IS A WORK IN PROGRESS<\/p>\n","protected":false},"excerpt":{"rendered":"

After PLA is 3D printed, it can be recycled and used to 3D print again, providing it has not been combined with another substance like super glue or non-water based paint. There are three methods of recycling PLA: mechanical recycling, chemical recycling, and composting. In order to quantify and compare these methods, two different systems … <\/p>\n

Continue reading “PLA Recycling: Mechanical vs. Chemical vs. Compost”<\/span><\/a><\/p>\n","protected":false},"author":371,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,10,9,23,7],"tags":[22,14,11,12,15,16,13,20,6],"class_list":["post-205","post","type-post","status-publish","format-standard","hentry","category-pla","category-plarecycling","category-research","category-systems","category-technology","tag-collecting","tag-extruding","tag-pla","tag-pla-recycling","tag-recycling","tag-research","tag-shredding","tag-systems","tag-technology"],"_links":{"self":[{"href":"https:\/\/wordpress.kpu.ca\/birkzukowsky\/wp-json\/wp\/v2\/posts\/205","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.kpu.ca\/birkzukowsky\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wordpress.kpu.ca\/birkzukowsky\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wordpress.kpu.ca\/birkzukowsky\/wp-json\/wp\/v2\/users\/371"}],"replies":[{"embeddable":true,"href":"https:\/\/wordpress.kpu.ca\/birkzukowsky\/wp-json\/wp\/v2\/comments?post=205"}],"version-history":[{"count":27,"href":"https:\/\/wordpress.kpu.ca\/birkzukowsky\/wp-json\/wp\/v2\/posts\/205\/revisions"}],"predecessor-version":[{"id":717,"href":"https:\/\/wordpress.kpu.ca\/birkzukowsky\/wp-json\/wp\/v2\/posts\/205\/revisions\/717"}],"wp:attachment":[{"href":"https:\/\/wordpress.kpu.ca\/birkzukowsky\/wp-json\/wp\/v2\/media?parent=205"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wordpress.kpu.ca\/birkzukowsky\/wp-json\/wp\/v2\/categories?post=205"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wordpress.kpu.ca\/birkzukowsky\/wp-json\/wp\/v2\/tags?post=205"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}