智利水热碳化与厌氧消化联合处理污泥和城市生活垃圾的技术经济和环境评价

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy Pub Date : 2025-06-24 DOI:10.1016/j.biombioe.2025.108105

Jhosané Pagés-Díaz , Cesar Huiliñir , Junior Lorenzo-Llanes , Lisbeth Mailin López Gónzalez , Ernesto L. Barrera

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引用次数: 0

摘要

本研究旨在比较单独的水热碳化工艺（HTC）与厌氧消化（AD）在技术、经济和环境性能方面的处理。评估了三种方案：(i)独立HTC，（ii） HTC与AD集成（HTC + AD_1），（iii） HTC与使用碳氢化合物的改进AD集成（HTC + AD_2）。工业流程是根据先前获得的城市生活垃圾有机部分和污水污泥共处理的实验数据设计和建模的。结果表明，由于沼气产生的额外能量，综合方案下的净热能（HTC = 53 kWh/种原料，HTC + AD_1 = 120 kWh/种原料，HTC + AD_2 = 84 kWh/种原料）和净电能（HTC = 149 kWh/种原料，HTC + AD_1 = 187 kWh/种原料，HTC + AD_2 = 187 kWh/种原料）分别比单机方案增加了126%和26%。然而，由于添加碳氢化合物而增加的甲烷产量（58 NmLCH4/gVS . 153 NmLCH4/gVS .）并没有提供发电厂直接燃烧碳氢化合物的贡献。与独立的HTC相比，由于合并了AD厂，热电联产机组的废物处理成本增加了62%。年化总成本范围为101 （HTC）至127 （HTC + AD_1）美元/原料，通过增加工厂产能（高达10万吨/年），预计在所有情况下都将降低（高达31美元/原料）。与独立的HTC相比，集成的配置减少了总环境影响点（高达85%），这是由于HTC工艺水的价格稳定和煤炭燃料的替代。

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Techno-economic and environmental assessment of hydrothermal carbonization coupled with anaerobic digestion for sewage sludge and municipal solid waste co-treatment in Chile

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Techno-economic and environmental assessment of hydrothermal carbonization coupled with anaerobic digestion for sewage sludge and municipal solid waste co-treatment in Chile

This work aimed to compare the stand-alone hydrothermal carbonization process (HTC) coupled with anaerobic digestion (AD) for the treatment of HTC-process water in terms of technical, economic, and environmental performance. Three scenarios were evaluated: (i) Stand-alone HTC, (ii) HTC integrated with AD (HTC + AD_1), and (iii) HTC integrated with an improved AD that uses hydrochar (HTC + AD_2). The industrial process was designed and modeled based on experimental data previously obtained for the co-treatment of the organic fraction of municipal solid waste and sewage sludge. The results show that net thermal energy (HTC = 53 kWh/t_{raw material}, HTC + AD_1 = 120 kWh/t_{raw material}, HTC + AD_2 = 84 kWh/t_{raw material}) and net electrical energy (HTC = 149 kWh/t_{raw material}, HTC + AD_1 = 187 kWh/t_{raw material}, HTC + AD_2 = 187 kWh/t_{raw material}) increased in the integrated scenarios by up to 126 % and 26 % respectively, compared to the stand-alone HTC due to extra energy from biogas. Nevertheless, the increase in methane production (58 vs. 153 NmLCH₄/gVS) owing to the hydrochar addition did not supply the contribution of direct hydrochar combustion in power plants. Compared to the stand-alone HTC, the waste treatment cost with the cogeneration unit increased by 62 % due to the annexed AD plant. The total annualized cost ranges from 101 (HTC) to 127 (HTC + AD_1) USD/t_{raw material,} which is expected to decrease in all scenarios (up to 31 USD/t_{raw material}) by increasing the plant capacity (up to 100,000 t/year). The integrated configurations reduce the total environmental impact points (up to 85 %) compared to the stand-alone HTC due to the valorization of the HTC-process water and the replacement of coal fuel.

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来源期刊

Biomass & Bioenergy 工程技术-能源与燃料

CiteScore

11.50

自引率

3.30%

发文量

258

审稿时长

60 days

期刊介绍： Biomass & Bioenergy is an international journal publishing original research papers and short communications, review articles and case studies on biological resources, chemical and biological processes, and biomass products for new renewable sources of energy and materials. The scope of the journal extends to the environmental, management and economic aspects of biomass and bioenergy. Key areas covered by the journal: • Biomass: sources, energy crop production processes, genetic improvements, composition. Please note that research on these biomass subjects must be linked directly to bioenergy generation. • Biological Residues: residues/rests from agricultural production, forestry and plantations (palm, sugar etc), processing industries, and municipal sources (MSW). Papers on the use of biomass residues through innovative processes/technological novelty and/or consideration of feedstock/system sustainability (or unsustainability) are welcomed. However waste treatment processes and pollution control or mitigation which are only tangentially related to bioenergy are not in the scope of the journal, as they are more suited to publications in the environmental arena. Papers that describe conventional waste streams (ie well described in existing literature) that do not empirically address ''new'' added value from the process are not suitable for submission to the journal. • Bioenergy Processes: fermentations, thermochemical conversions, liquid and gaseous fuels, and petrochemical substitutes • Bioenergy Utilization: direct combustion, gasification, electricity production, chemical processes, and by-product remediation • Biomass and the Environment: carbon cycle, the net energy efficiency of bioenergy systems, assessment of sustainability, and biodiversity issues.