Ash characteristics during co-incineration with industrial organic solid waste in a large-scale municipal solid waste incinerator
Shuai Li1
Lu Dong2
Hongyun Hu3
Yongda Huang1
Yipeng Wang4
Lifang Gong5
Mingmei Zhang1
Sihua Xu1
Hong Yao1
1.State Key Laboratory of Coal Combustion,School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,China2.State Key Laboratory of Low Carbon Catalysis and Carbon Dioxide Utilization,School of Petroleum Engineering,Yangtze University,Wuhan 430100,China3.State Key Laboratory of Coal Combustion,School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Research Institute of Huazhong University of Science and Technology in Shenzhen,Shenzhen 518000,China4.Universtar Science & Technology(Shenzhen)Co.,Ltd,Shenzhen 518057,China5.State Key Laboratory of Coal Combustion,School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Grandblue(Foshan)Green Electricity Solid Waste Management Co.,Ltd,Foshan 528200,China
摘要：In recent years,the co-incineration with industrial organic solid waste(IOSW)in municipal solid waste(MSW)incinera-tors has been an effective method for addressing MSW volume deficiencies and expediting IOSW disposal.However,co-incinerating IOSW raises several concerns,particularly regarding the altered characteristics of incineration ash.This study investigated the impact on ash characteristics at co-incineration ratios of 20％,30％,and 40％in a 500 t/d MSW incinerator.IOSW consisted mainly of plastic,fabric,and leather,and it contained relatively high levels of chlorine,sulfur,and heavy metals.The findings indicated that co-incineration marginally affected the crystalline structure of ashes but altered the chemical composition of part ashes.Higher IOSW ratios reduced the Ca content to 5.80％and increased the concentrations of Cl,Na,and K in particulate matter(PM).The use of calcium-based agents to reduce acid gas concentra-tions lowered Cl,Na,and K in baghouse fly ash(BHFA).Heavy metal concentrations in superheater and economizer ash remained relatively stable,whereas the elevated levels of As,Cd,Pb,Zn,and Cu in PM with rising co-incineration ratios were attributed to increased temperatures and HCl concentrations.BHFA displayed reduced heavy metal content,likely due to dilution by deacidification agents.The leaching concentrations of Cr,Pb,Zn,and Cu in BHFA slightly increased,while those of As and Se decreased due to higher pH and reduction reactions.Most heavy metals in the leachate,except Pb,complied with regulatory limits.This investigation provides insights into ash characteristics at IOSW co-incineration ratios of up to 40％and offers guidance for subsequent treatment and disposal of fly ash.
机标关键词：characteristicsindustrialsolidorganicwithco-incinerationduringincinerator
论文发表日期：2025-12-31
在线出版日期：2026-01-30（本平台首次上网日期，不代表文献的发表时间）
页数：21( 260-280 )
英文信息