工业水处理 ›› 2025, Vol. 45 ›› Issue (9): 174-184. doi: 10.19965/j.cnki.iwt.2024-0891

• 可持续发展 • 上一篇    

基于不同处理处置路径的污泥碳排放预测

魏秀丽(), 郭小平(), 王珍   

  1. 北京林业大学水土保持学院,北京 100083
  • 收稿日期:2025-02-28 出版日期:2025-09-20 发布日期:2025-11-20
  • 通讯作者: 郭小平
  • 作者简介:

    魏秀丽(1999— ),硕士,E-mail:

  • 基金资助:
    国家重点研发计划项目(2017YFC0504406); 内蒙古自治区科技重大专项(2020ZD0021)

Prediction of sludge carbon emissions based on different treatment paths

Xiuli WEI(), Xiaoping GUO(), Zhen WANG   

  1. School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China
  • Received:2025-02-28 Online:2025-09-20 Published:2025-11-20
  • Contact: Xiaoping GUO

摘要:

为客观预测我国污泥处理处置碳排放的发展趋势及选择最佳处理处置方案,基于我国污泥特征对厌氧消化+土地利用(S1)、好氧堆肥+土地利用(S2)、焚烧(S3)、填埋(S4) 4种污泥处理处置路径进行碳排放核算,并结合ARIMA预测模型,开展碳排放预测研究。结果表明,S1~S4的净碳排放量分别为89.72、485.48、1 487.74、1 700.97 kg/t,主要碳排放分别来自热干化热耗、脱水药耗、焚烧CO2释放和填埋CH4逸散,而碳补偿来源于污泥替代肥料、CH4及热量回收发电。通过增加污泥有机质含量、调整堆肥温度和曝气频率、控制化石燃料使用及填埋场CH4产生等措施可有效实现碳减排。受污泥产量影响,4种路径的碳排放整体表现为高排放特征,并保持逐年上升趋势,预测截至2030年碳排放总量分别达到170.96万、925.16万、2 835.13万、3 241.47万t,并以S1路径最为低碳。面对污泥处理处置的高碳排放,基于“因地制宜、绿色低碳、资源循环、环境友好”的发展理念,持续推进污泥处理处置技术的创新和升级是促进污泥低碳化发展的重要举措。

关键词: 污泥处理处置, ARIMA预测模型, 碳排放, 碳补偿, 发展策略

Abstract:

To objectively predict the development trend of carbon emissions of sludge treatment and disposal in China and choose the best treatment and disposal scheme, the carbon emissions of four sludge treatment and disposal technical paths, namely anaerobic digestion+land use (S1), aerobic composting+land use (S2), incineration (S3) and landfill (S4), were calculated based on the characteristics of sludge in China, and combined with ARIMA prediction model. The results showed that the net carbon emissions from S1 to S4 were 89.72, 485.48, 1 487.74 and 1 700.97 kg/t, respectively. The main carbon emissions were from the heat consumption of thermal drying, dehydration agent consumption, incineration CO2 release and landfill CH4 emission, while carbon compensation was from sludge replacing fertilizer, CH4 and heat recovery for power generation. Carbon emission reduction could be effectively achieved by increasing the organic matter content of sludge, adjusting composting temperature and aeration frequency, controlling the use of fossil fuels and the generation of CH4 in landfills. Due to the influence of sludge production, the carbon emissions of the four paths were generally characterized by high emissions, and kept increasing year by year. By 2030, the total carbon emissions would reach 170.96×104, 925.16×104, 2 835.13×104 and 3 241.47×104 t respectively, and S1 path was the lowest carbon. Facing the high carbon emission of sludge treatment and disposal, based on the development concept of “adapting to local conditions, being green and low-carbon, recycling resources and being environment-friendly”, it was an important measure to continuously promote the innovation and upgradation of sludge treatment and disposal technology.

Key words: sludge treatment and disposal, ARIMA prediction model, carbon emissions, carbon compensation, development strategy

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