Alana Teresa Griggs , Anthony Roulier , Nelson A. Granda , Jasmina Burek
{"title":"大麻二酚生产中残留大麻生物质的生命周期评估,重点是处置途径和通过厌氧消化的生物甲烷回收","authors":"Alana Teresa Griggs , Anthony Roulier , Nelson A. Granda , Jasmina Burek","doi":"10.1016/j.resconrec.2025.108525","DOIUrl":null,"url":null,"abstract":"<div><div>About 90 % of residual hemp biomass from cannabidiol (CBD) production is treated as waste through landfilling incineration, or composting. This study conducted a screening-level life cycle assessment (LCA) to compare the environmental impacts of these conventional end-of-life options with anaerobic digestion (AD). AD was also evaluated for its circular economy potential by substituting biomethane for traditional fossil fuels (natural gas and propane) used in CBD production. The LCA assumed a realistic operational AD efficiency of 60 %, yielding 286.7 mL CH₄/g volatile solids, comparable to other organic substrates. Among the waste treatment scenarios, AD exhibited the lowest environmental impacts. However, when examining fuel substitution, natural gas remained the lowest impact option compared to biomethane and propane. These results highlight trade-offs between waste treatment and fuel replacement strategies and emphasize the need for future work to assess the broader feasibility and benefits of integrating circular bioenergy systems within the CBD industry.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"223 ","pages":"Article 108525"},"PeriodicalIF":10.9000,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Life cycle assessments of residual hemp biomass from cannabidiol production focusing on disposal pathways and biomethane recovery via anaerobic digestion\",\"authors\":\"Alana Teresa Griggs , Anthony Roulier , Nelson A. Granda , Jasmina Burek\",\"doi\":\"10.1016/j.resconrec.2025.108525\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>About 90 % of residual hemp biomass from cannabidiol (CBD) production is treated as waste through landfilling incineration, or composting. This study conducted a screening-level life cycle assessment (LCA) to compare the environmental impacts of these conventional end-of-life options with anaerobic digestion (AD). AD was also evaluated for its circular economy potential by substituting biomethane for traditional fossil fuels (natural gas and propane) used in CBD production. The LCA assumed a realistic operational AD efficiency of 60 %, yielding 286.7 mL CH₄/g volatile solids, comparable to other organic substrates. Among the waste treatment scenarios, AD exhibited the lowest environmental impacts. However, when examining fuel substitution, natural gas remained the lowest impact option compared to biomethane and propane. These results highlight trade-offs between waste treatment and fuel replacement strategies and emphasize the need for future work to assess the broader feasibility and benefits of integrating circular bioenergy systems within the CBD industry.</div></div>\",\"PeriodicalId\":21153,\"journal\":{\"name\":\"Resources Conservation and Recycling\",\"volume\":\"223 \",\"pages\":\"Article 108525\"},\"PeriodicalIF\":10.9000,\"publicationDate\":\"2025-07-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Resources Conservation and Recycling\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0921344925004033\",\"RegionNum\":1,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ENVIRONMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Resources Conservation and Recycling","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0921344925004033","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
Life cycle assessments of residual hemp biomass from cannabidiol production focusing on disposal pathways and biomethane recovery via anaerobic digestion
About 90 % of residual hemp biomass from cannabidiol (CBD) production is treated as waste through landfilling incineration, or composting. This study conducted a screening-level life cycle assessment (LCA) to compare the environmental impacts of these conventional end-of-life options with anaerobic digestion (AD). AD was also evaluated for its circular economy potential by substituting biomethane for traditional fossil fuels (natural gas and propane) used in CBD production. The LCA assumed a realistic operational AD efficiency of 60 %, yielding 286.7 mL CH₄/g volatile solids, comparable to other organic substrates. Among the waste treatment scenarios, AD exhibited the lowest environmental impacts. However, when examining fuel substitution, natural gas remained the lowest impact option compared to biomethane and propane. These results highlight trade-offs between waste treatment and fuel replacement strategies and emphasize the need for future work to assess the broader feasibility and benefits of integrating circular bioenergy systems within the CBD industry.
期刊介绍:
The journal Resources, Conservation & Recycling welcomes contributions from research, which consider sustainable management and conservation of resources. The journal prioritizes understanding the transformation processes crucial for transitioning toward more sustainable production and consumption systems. It highlights technological, economic, institutional, and policy aspects related to specific resource management practices such as conservation, recycling, and resource substitution, as well as broader strategies like improving resource productivity and restructuring production and consumption patterns.
Contributions may address regional, national, or international scales and can range from individual resources or technologies to entire sectors or systems. Authors are encouraged to explore scientific and methodological issues alongside practical, environmental, and economic implications. However, manuscripts focusing solely on laboratory experiments without discussing their broader implications will not be considered for publication in the journal.