{"title":"通过基于密度的废塑料分离优化城市固体废物回收","authors":"Prashant Shukla, Pankaj Kumar Sharma, Shyam Pandey, Ram Kunwer","doi":"10.1007/s10163-024-01971-1","DOIUrl":null,"url":null,"abstract":"<div><p>Municipal solid waste (MSW) management poses significant environmental and health risks due to lack of source segregation, and reliance on landfills. To address these challenges, a prototype segregator is designed to process MSW, eliminating the need for a bio-drying process. A lab-scale density media separator (DMS) is developed for pre-experimentation and feasibility analysis of nine samples ranging from 100 to 500 g. Feasibility analysis indicates the possibility of the proposed process being implemented as a prototype and also creates the baseline considerations for designing the prototype segregator. Performance analysis of the prototype reveals the segregation of mixed MSW into plastic waste (lower specific density, larger particle size: 30–50 mm) with recovery of 81%, while Inert waste (higher specific density, smaller particle size: 5–45 mm) with recovery of 42%; and degradable waste (specific density closer to water and particle size 5–20 mm) with recovery of 78%. Furthermore, parametric optimization redefines the recovery of plastic by 78% (at 55 mm particle size, 300–400 L water), degradable by 48% (at 40 mm particle size, 250–375 L water, agitation 21.8–10.9 min). Thus the proposed system offers promising solutions to improve MSW management and alleviate environmental impact.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Optimizing municipal solid waste recovery through density-based waste plastic segregation\",\"authors\":\"Prashant Shukla, Pankaj Kumar Sharma, Shyam Pandey, Ram Kunwer\",\"doi\":\"10.1007/s10163-024-01971-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Municipal solid waste (MSW) management poses significant environmental and health risks due to lack of source segregation, and reliance on landfills. To address these challenges, a prototype segregator is designed to process MSW, eliminating the need for a bio-drying process. A lab-scale density media separator (DMS) is developed for pre-experimentation and feasibility analysis of nine samples ranging from 100 to 500 g. Feasibility analysis indicates the possibility of the proposed process being implemented as a prototype and also creates the baseline considerations for designing the prototype segregator. Performance analysis of the prototype reveals the segregation of mixed MSW into plastic waste (lower specific density, larger particle size: 30–50 mm) with recovery of 81%, while Inert waste (higher specific density, smaller particle size: 5–45 mm) with recovery of 42%; and degradable waste (specific density closer to water and particle size 5–20 mm) with recovery of 78%. Furthermore, parametric optimization redefines the recovery of plastic by 78% (at 55 mm particle size, 300–400 L water), degradable by 48% (at 40 mm particle size, 250–375 L water, agitation 21.8–10.9 min). Thus the proposed system offers promising solutions to improve MSW management and alleviate environmental impact.</p></div>\",\"PeriodicalId\":643,\"journal\":{\"name\":\"Journal of Material Cycles and Waste Management\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2024-05-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Material Cycles and Waste Management\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10163-024-01971-1\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Material Cycles and Waste Management","FirstCategoryId":"93","ListUrlMain":"https://link.springer.com/article/10.1007/s10163-024-01971-1","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Optimizing municipal solid waste recovery through density-based waste plastic segregation
Municipal solid waste (MSW) management poses significant environmental and health risks due to lack of source segregation, and reliance on landfills. To address these challenges, a prototype segregator is designed to process MSW, eliminating the need for a bio-drying process. A lab-scale density media separator (DMS) is developed for pre-experimentation and feasibility analysis of nine samples ranging from 100 to 500 g. Feasibility analysis indicates the possibility of the proposed process being implemented as a prototype and also creates the baseline considerations for designing the prototype segregator. Performance analysis of the prototype reveals the segregation of mixed MSW into plastic waste (lower specific density, larger particle size: 30–50 mm) with recovery of 81%, while Inert waste (higher specific density, smaller particle size: 5–45 mm) with recovery of 42%; and degradable waste (specific density closer to water and particle size 5–20 mm) with recovery of 78%. Furthermore, parametric optimization redefines the recovery of plastic by 78% (at 55 mm particle size, 300–400 L water), degradable by 48% (at 40 mm particle size, 250–375 L water, agitation 21.8–10.9 min). Thus the proposed system offers promising solutions to improve MSW management and alleviate environmental impact.
期刊介绍:
The Journal of Material Cycles and Waste Management has a twofold focus: research in technical, political, and environmental problems of material cycles and waste management; and information that contributes to the development of an interdisciplinary science of material cycles and waste management. Its aim is to develop solutions and prescriptions for material cycles.
The journal publishes original articles, reviews, and invited papers from a wide range of disciplines related to material cycles and waste management.
The journal is published in cooperation with the Japan Society of Material Cycles and Waste Management (JSMCWM) and the Korea Society of Waste Management (KSWM).