Sewage Sludge Plasma Gasification: Characterization and Experimental Rig Design

Author:

Pacheco Nuno1ORCID,Ribeiro André1ORCID,Oliveira Filinto2,Pereira Filipe3,Marques L.4ORCID,Teixeira José C.5ORCID,Vilarinho Cândida5,Barbosa Flavia V.5ORCID

Affiliation:

1. CVR—Centre for Waste Valorization, University of Minho, 4800-042 Guimarães, Portugal

2. NEL—New Energy Level, Lda., 4760-758 Vila Nova de Famalicão, Portugal

3. Ambitrevo—Soluções Agrícolas e Ambientais, Lda., 2100-011 Coruche, Portugal

4. CF-UM-UP—Physics Center of Minho and Porto Universities, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal

5. MEtRICs I&D Centre, School of Engineering, University of Minho, 4800-042 Guimarães, Portugal

Abstract

The treatment of wastewater worldwide generates substantial quantities of sewage sludge (SS), prompting concerns about its environmental impact. Various approaches have been explored for SS reuse, with energy production emerging as a viable solution. This study focuses on harnessing energy from domestic wastewater treatment (WWT) sewage sludge through plasma gasification. Effective syngas production hinges on precise equipment design which, in turn, depends on the detailed feedstock used for characterization. Key components of plasma gasification include the plasma torch, reactor, heat exchanger, scrubber, and cyclone, enabling the generation of inert slag for landfill disposal and to ensure clean syngas. Designing these components entails considerations of sludge composition, calorific power, thermal conductivity, ash diameter, and fusibility properties, among other parameters. Accordingly, this work entails the development of an experimental setup for the plasma gasification of sewage sludge, taking into account a comprehensive sludge characterization. The experimental findings reveal that domestic WWT sewage sludge with 40% humidity exhibits a low thermal conductivity of approximately 0.392 W/mK and a calorific value of LHV = 20.78 MJ/kg. Also, the relatively low ash content (17%) renders this raw material advantageous for plasma gasification processes. The integration of a detailed sludge characterization into the equipment design lays the foundation for efficient syngas production. This study aims to contribute to advancing sustainable waste-to-energy technologies, namely plasma gasification, by leveraging sewage sludge as a valuable resource for syngas production.

Funder

European Regional Development Fund

Publisher

MDPI AG

Reference51 articles.

1. Sustainability assessment of alternative waste-to-energy technologies for the management of sewage sludge;Ronda;Waste Manag.,2023

2. (2023, May 19). Database-Eurostat. Available online: https://ec.europa.eu/eurostat/data/database?node_code=env_ww_spd.

3. Fifty years of sewage sludge management research: Mapping researchers’ motivations and concerns;Bagheri;J. Environ. Manag.,2023

4. Thermal Plasma: A Technology for Efficient Treatment of Industrial and Wastewater Sludge;Ali;IOSR J. Environ. Sci.,2016

5. Sewage Sludge-Derived Producer Gas Valorization with the Use of Atmospheric Microwave Plasma;Wnukowski;Waste Biomass-Valorization,2020

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3