Yanfei Lin , Hanqiao Liu , Guoxia Wei , Tong Li , Qianlong Han , Zilu Liu , Xinrui Su , Yifan Chen
{"title":"污泥衍生燃料在垃圾焚化炉中共焚烧的制备:工业试验和生命周期评估","authors":"Yanfei Lin , Hanqiao Liu , Guoxia Wei , Tong Li , Qianlong Han , Zilu Liu , Xinrui Su , Yifan Chen","doi":"10.1016/j.spc.2025.08.004","DOIUrl":null,"url":null,"abstract":"<div><div>The co-incineration of sludge using the surplus processing capacity of waste incineration plants provides a viable strategy for sludge treatment in China. An innovative project of mixing sludge with straw for preparing sludge derived fuel and then sending it to waste incinerators for co-incineration was developed in this paper. Additionally, the environmental and economic performances of new sludge derived fuel co-incineration system with flue gas/solar aided drying were evaluated through life cycle assessment and life cycle costing method. The pilot-scale drying results showed that the optimum conditions for flue gas combined solar drying of sludge are a straw/sludge ratio of 15 %, a sludge layer thickness of 6 cm, and a flipping interval of 60 min. The moisture content of the sludge cake was reduced from 76.8 % to 22.0 % after 7.5 h of drying under the optimum conditions. The industrial-scale co-incineration tests found that the recommended addition rates of sludge derived fuel were 1.5 and 2.0 t/h in a 300 t/d fluidized bed incinerator and 400 t/d grate furnace incinerator, respectively. Life cycle assessment results demonstrated that, compared to sludge and waste mono-incineration, the innovative project involving co-incineration with sludge derived fuel in grate furnace incinerator after flue gas/solar drying gained environmental benefits in 8 categories, exhibiting the best environmental sustainability, while co-incineration after steam drying showed the highest economic benefit with 18.01 USD/t. These results provide references for sustainable co-treatment approach of municipal solid waste and sludge in the future.</div></div>","PeriodicalId":48619,"journal":{"name":"Sustainable Production and Consumption","volume":"59 ","pages":"Pages 99-111"},"PeriodicalIF":9.6000,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Preparation of sludge derived fuels for co-incineration in waste incinerators: Industrial tests and life cycle assessment\",\"authors\":\"Yanfei Lin , Hanqiao Liu , Guoxia Wei , Tong Li , Qianlong Han , Zilu Liu , Xinrui Su , Yifan Chen\",\"doi\":\"10.1016/j.spc.2025.08.004\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The co-incineration of sludge using the surplus processing capacity of waste incineration plants provides a viable strategy for sludge treatment in China. An innovative project of mixing sludge with straw for preparing sludge derived fuel and then sending it to waste incinerators for co-incineration was developed in this paper. Additionally, the environmental and economic performances of new sludge derived fuel co-incineration system with flue gas/solar aided drying were evaluated through life cycle assessment and life cycle costing method. The pilot-scale drying results showed that the optimum conditions for flue gas combined solar drying of sludge are a straw/sludge ratio of 15 %, a sludge layer thickness of 6 cm, and a flipping interval of 60 min. The moisture content of the sludge cake was reduced from 76.8 % to 22.0 % after 7.5 h of drying under the optimum conditions. The industrial-scale co-incineration tests found that the recommended addition rates of sludge derived fuel were 1.5 and 2.0 t/h in a 300 t/d fluidized bed incinerator and 400 t/d grate furnace incinerator, respectively. Life cycle assessment results demonstrated that, compared to sludge and waste mono-incineration, the innovative project involving co-incineration with sludge derived fuel in grate furnace incinerator after flue gas/solar drying gained environmental benefits in 8 categories, exhibiting the best environmental sustainability, while co-incineration after steam drying showed the highest economic benefit with 18.01 USD/t. These results provide references for sustainable co-treatment approach of municipal solid waste and sludge in the future.</div></div>\",\"PeriodicalId\":48619,\"journal\":{\"name\":\"Sustainable Production and Consumption\",\"volume\":\"59 \",\"pages\":\"Pages 99-111\"},\"PeriodicalIF\":9.6000,\"publicationDate\":\"2025-08-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Sustainable Production and Consumption\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2352550925001605\",\"RegionNum\":1,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENVIRONMENTAL STUDIES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sustainable Production and Consumption","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2352550925001605","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL STUDIES","Score":null,"Total":0}
Preparation of sludge derived fuels for co-incineration in waste incinerators: Industrial tests and life cycle assessment
The co-incineration of sludge using the surplus processing capacity of waste incineration plants provides a viable strategy for sludge treatment in China. An innovative project of mixing sludge with straw for preparing sludge derived fuel and then sending it to waste incinerators for co-incineration was developed in this paper. Additionally, the environmental and economic performances of new sludge derived fuel co-incineration system with flue gas/solar aided drying were evaluated through life cycle assessment and life cycle costing method. The pilot-scale drying results showed that the optimum conditions for flue gas combined solar drying of sludge are a straw/sludge ratio of 15 %, a sludge layer thickness of 6 cm, and a flipping interval of 60 min. The moisture content of the sludge cake was reduced from 76.8 % to 22.0 % after 7.5 h of drying under the optimum conditions. The industrial-scale co-incineration tests found that the recommended addition rates of sludge derived fuel were 1.5 and 2.0 t/h in a 300 t/d fluidized bed incinerator and 400 t/d grate furnace incinerator, respectively. Life cycle assessment results demonstrated that, compared to sludge and waste mono-incineration, the innovative project involving co-incineration with sludge derived fuel in grate furnace incinerator after flue gas/solar drying gained environmental benefits in 8 categories, exhibiting the best environmental sustainability, while co-incineration after steam drying showed the highest economic benefit with 18.01 USD/t. These results provide references for sustainable co-treatment approach of municipal solid waste and sludge in the future.
期刊介绍:
Sustainable production and consumption refers to the production and utilization of goods and services in a way that benefits society, is economically viable, and has minimal environmental impact throughout its entire lifespan. Our journal is dedicated to publishing top-notch interdisciplinary research and practical studies in this emerging field. We take a distinctive approach by examining the interplay between technology, consumption patterns, and policy to identify sustainable solutions for both production and consumption systems.