{"title":"Investigation on specific evaporation rates during biosolid air drying process","authors":"Fangtian Li, Xin Zhang, Yun Ji","doi":"10.1002/ep.14538","DOIUrl":null,"url":null,"abstract":"<p>Biosolids, inevitable by-products of wastewater treatment processes, can be potentially used as a biomass feedstock for energy and resource applications. These by-products have a high moisture content, which must be reduced before they can be used for further applications. Natural air drying is an energy saving and sustainable approach, but it highly depends on local climatic conditions. We conducted biosolid air drying experiments under room temperature and winter outdoor temperature. The biosolid air drying experiment under room temperature was designed to screen four factors: wind speed, solid content, layer thickness and pan location. Wind speed and solid content were identified as primary factors, and the specific evaporation rate increased as the wind speed increased and decreased as solid content increased. The developed regression model can effectively predict the specific evaporation rate. Under winter outdoor temperature, the results revealed the surrounding temperature has a great effect on the sublimation rate.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 2","pages":""},"PeriodicalIF":2.1000,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Progress & Sustainable Energy","FirstCategoryId":"93","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/ep.14538","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Biosolids, inevitable by-products of wastewater treatment processes, can be potentially used as a biomass feedstock for energy and resource applications. These by-products have a high moisture content, which must be reduced before they can be used for further applications. Natural air drying is an energy saving and sustainable approach, but it highly depends on local climatic conditions. We conducted biosolid air drying experiments under room temperature and winter outdoor temperature. The biosolid air drying experiment under room temperature was designed to screen four factors: wind speed, solid content, layer thickness and pan location. Wind speed and solid content were identified as primary factors, and the specific evaporation rate increased as the wind speed increased and decreased as solid content increased. The developed regression model can effectively predict the specific evaporation rate. Under winter outdoor temperature, the results revealed the surrounding temperature has a great effect on the sublimation rate.
期刊介绍:
Environmental Progress , a quarterly publication of the American Institute of Chemical Engineers, reports on critical issues like remediation and treatment of solid or aqueous wastes, air pollution, sustainability, and sustainable energy. Each issue helps chemical engineers (and those in related fields) stay on top of technological advances in all areas associated with the environment through feature articles, updates, book and software reviews, and editorials.