热解和焚烧的环境影响评价，包括废污泥副产品

IF 9.7 1区环境科学与生态学 Q1 AGRICULTURAL ENGINEERING

Bioresource Technology Pub Date : 2025-07-01 DOI:10.1016/j.biortech.2025.132929

Ga-Been Lee , Chae-Eun Ahn , Won-Gune Jeong , Yiu Fai Tsang , Kitae Baek

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引用次数: 0

摘要

提出了焚烧和热解两种污泥处理方法。然而，大多数研究都忽视了热过程副产物对环境的影响。本研究比较了焚烧和热解的适用性，并对副产品进行了详细的环境影响评价。通过加速老化过程研究了灰分和生物炭中重金属的长期稳定性，并从磷有效性和其他功能方面评价了它们作为肥料的潜力。焚烧灰和热解生物炭在老化后也表现出较高的重金属稳定性，具有替代化肥的潜力。因此，生命周期评估确定焚烧的环境影响比热解更严重，因为焚烧过程中生物源性CO2排放量增加，重金属的流动性更大。因此，考虑到环境影响和副产品影响，热解被认为是污水污泥处理的更环保的可持续选择。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Environmental impact assessment of pyrolysis and incineration including end-of-life of sewage sludge by-products

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Environmental impact assessment of pyrolysis and incineration including end-of-life of sewage sludge by-products

Incineration and pyrolysis have been proposed for sewage sludge treatment. However, most studies have overlooked the environmental impacts of by-products from thermal processes. This study compared the applicability of incineration and pyrolysis, with a detailed environmental impact assessment of by-products. The long-term stability of heavy metals in ash and biochar was investigated through an accelerated aging process, while their potential as fertilizers was evaluated in terms of phosphorus availability and other functions. Both incineration ash and pyrolyzed biochar demonstrated high heavy metal stability even after aging and exhibited potential as substitutes for chemical fertilizers. Consequently, the life cycle assessment determined that the environmental impacts of incineration were more severe than those of pyrolysis due to increased biogenic CO₂ emissions and greater mobility of heavy metals during incineration. Therefore, pyrolysis is suggested as the more environmentally sustainable option for sewage sludge treatment, considering both environmental impacts and by-product implications.

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来源期刊

Bioresource Technology 工程技术-能源与燃料

CiteScore

20.80

自引率

19.30%

发文量

2013

审稿时长

12 days

期刊介绍： Bioresource Technology publishes original articles, review articles, case studies, and short communications covering the fundamentals, applications, and management of bioresource technology. The journal seeks to advance and disseminate knowledge across various areas related to biomass, biological waste treatment, bioenergy, biotransformations, bioresource systems analysis, and associated conversion or production technologies. Topics include: • Biofuels: liquid and gaseous biofuels production, modeling and economics • Bioprocesses and bioproducts: biocatalysis and fermentations • Biomass and feedstocks utilization: bioconversion of agro-industrial residues • Environmental protection: biological waste treatment • Thermochemical conversion of biomass: combustion, pyrolysis, gasification, catalysis.