Co-processing of solid waste in industrial kilns: a review

doi:10.16085/j.issn.1000-6613.2021-1789

Abstract

Abstract:

Industrial kiln co-processing solid waste technology is an effective way to scientifically dispose of solid waste. The high temperature environment of industrial kilns is conducive to the thorough transformation and decomposition of solid waste, and effectively controls secondary pollution such as dioxins and heavy metals. At the same time, it can save the investment and operating costs of special solid waste disposal facilities and replace part of the fossil fuels or production raw materials needed for industrial production. In this paper, the co-processing technology of solid waste in industrial kilns, such as cement kilns, steel smelting kilns, coal-fired boilers in power plants and coal-water slurry gasifiers, are introduced. The technical research and engineering application status of co-processing solid waste in industrial kilns is reviewed. Combining the properties of solid waste and the characteristics of industrial kilns in various industries, the applicability of solid waste is analyzed. Comparing the common non-heat treatment technology of solid waste and heat treatment technology of solid waste, it is pointed out that the industrial kiln co-processing solid waste technology had the advantages of high potential of solid waste elimination, high level of resource utilization, good environmental benefits and no neighbor avoidance effect. Finally, the future development of the field of solid waste co-processing is prospected. The industry standards, technical specifications, laws and regulations for the co-processing of solid waste in cement kilns are becoming mature, while there is still more technology optimization space and development potential in the co-processing of solid waste technology in steel smelting kilns, coal-fired boilers in power plants and coal-water slurry gasifiers.

Key words: waste treatment, resource utilization, industrial kiln, circular economy, environment, recovery

摘要：

采用工业窑炉协同处置固废技术，借助工业窑炉的高温环境彻底转化分解固废，有效控制二英、重金属等二次污染，同时可节省固废专用处置设施的投资及运行费用，为工业生产替代部分所需化石燃料或生产原料，是一种科学处置固废的有效途径。本文介绍了水泥窑、钢铁冶炼窑炉、电厂燃煤锅炉、水煤浆气化炉等工业窑炉协同处置固废技术，综述了工业窑炉协同处置固废的技术研究和工程应用现状，结合固废自身特征与各行业工业窑炉特性分析其固废适用性。对比常见的固废非热处理技术、固废热处理技术，指出工业窑炉协同处置固废技术具有固废消纳潜力大、资源化利用水平高、环保效益好、无邻避效应等优点。最后对固废协同处置领域的未来发展作出了展望，水泥窑协同处置固废是率先实现行业标准、技术规范、法律法规等规定走向成熟的固废协同处置技术，而钢铁冶炼窑炉、电厂燃煤锅炉、水煤浆气化炉协同处置固废技术则更具技术优化空间和发展潜力。

关键词: 废物处理, 资源化利用, 工业窑炉, 循环经济, 环境, 回收

CLC Number:

X705

WANG Jianbin, CHEN Yun, WANG Kehua, YU Xuepeng, CHEN Cong, LIU Jianzhong. Co-processing of solid waste in industrial kilns: a review[J]. Chemical Industry and Engineering Progress, 2022, 41(3): 1494-1502.

王建斌, 陈云, 王可华, 于学鹏, 陈聪, 刘建忠. 工业窑炉协同处置固废研究进展[J]. 化工进展, 2022, 41(3): 1494-1502.

Figures/Tables 4

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