Review of the application of gasification and combustion technology and waste-to-energy technologies in sewage sludge treatment

Quan, Le Minh; Kamyab, Hesam; Yuzir, Ali; Ashokkumar, Veeramuthu; Hosseini, Seyed Ehsan; Balasubramanian, Balamuralikrishnan; Kirpichnikova, Irina

doi:10.1016/j.fuel.2022.123199

Cited by 112 publications

(32 citation statements)

References 137 publications

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“…In the last two decades, studies on the thermal treatment of sewage sludge, such as by gasification (Quan et al, 2022), pyrolysis (Ghodke et al, 2021), and combustion (Ahn et al, 2020), have been conducted to reduce the waste volume, obtain new products, or recover valuable materials. However, these technologies required large amounts of energy, and also required pre-drying of the feedstock and strict control of gas emissions (Bolan et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Acid-Mediated Hydrothermal Treatment of Sewage Sludge for Nutrient Recovery

Sarrión¹,

Rubia²,

Coronella³

et al. 2022

SSRN Journal

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Section: Introductionmentioning

confidence: 99%

Acid-Mediated Hydrothermal Treatment of Sewage Sludge for Nutrient Recovery

Sarrión¹,

Rubia²,

Coronella³

et al. 2022

SSRN Journal

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“…Less than 1 ppmv H 2 S concentration is also achieved. 30 Also 95% CO 2 recovery and 100% sulfur recovery are achieved by Selexol process. 31 Gatti et al, 32 in a study presented the multi-objective optimization for Selexol process, which exhibited the simultaneous optimization of process, utility design, and heat integration for selective capture of H 2 S and CO 2 .…”

Section: Introductionmentioning

confidence: 94%

Pre‐combustioncarbon dioxide capture: A thermo‐economic comparison for dual‐stage Selexol process and combinedSulfinol‐Selexolprocess

Ramzan

Rizwan

Zaman

et al. 2022

Intl J of Energy Research

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Summary The emission of greenhouse gases from fossil‐fueled power plants is a major concern in power generation sector. Carbon dioxide (CO2) emissions constitute the major portion of the greenhouse gases. Among several opportunities available to reduce CO2, carbon capture and sequestration (CCS) is considered to be a possible option for CO2 mitigation. However, implementation of CCS increases the cost of power generation significantly. The main effort of this study is to explore the technical and economic aspects of a dual‐stage Selexol process and a proposed process named combined Sulfinol‐Selexol process, for pre‐combustion capture. The combined CO2 capture process utilizes Sulfinol‐M solvent‐based process for the selective capture of hydrogen sulfide and dimethyl ether of polyethylene glycol solvent‐based Selexol process for CO2 capture. The performance of both processes is assessed and compared in terms of energy consumptions, operating cost, and capital cost by simulating in Aspen HYSYS V.11. Sensitivity analysis for lean solvent inlet temperature, pressures of multi‐flash system and number of stages of the absorption columns is performed to improve both processes. The proposed combined process is 5.8% more economical than the baseline dual‐stage Selexol process as well as its overall process is simpler. However, after sensitivity analysis, both processes improved, and the dual‐stage Selexol process is found to be 3.31% more economical than the combined Sulfinol‐Selexol process.

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“…Today, factors such as the increase in the population of communities, the increase in water consumption, the production of sewage, and the increase in the amount of collected and treated sewage produce a large volume of sludge, making its proper management one of the challenges of the present century [ 1 ]. Sewage sludge (SS) is a byproduct of urban sewage treatment processes, which can threaten human life due to the presence of pathogenic biological agents, viruses like SARS-CoV-2, and chemical compounds, including heavy metals.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Carbonization of Sewage Sludge with Sawdust and Corn Stalk: Optimization of Process Parameters and Characterization of Hydrochar

et al. 2023

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Disposal of sewage sludge (SS) is one of the problems in treatment plants; however, SS has a high-water volume and lacks some compounds and can be mixed with other biomass. The present study analyzed co-hydrothermal carbonization of sewage sludge with sawdust and corn stalk. This research aimed to optimize the process parameters, the temperature in the range of 180–300 °C, the reaction time in the range of 30–60 min, and pH in the range of 5–9 on the mass yield, energy yield, and high heat value (HHV) to increase the quality of hydrochar, and to analyze the effect of hydrothermal carbonization (HTC) on the characteristics of raw materials and hydrochar. The response surface method and Benken’s box model were conducted using Design Expert 10 software. The optimal conditions for HHV, mass yield, and energy yield were 15.802 MJ/kg, 63.754%, and 67.415% respectively which occurred in the 205.358 °C, 30 min reaction time, and pH of 5. The temperature was the most influential parameter. The morphological, physicochemical, thermal, and crystalline properties of the hydrochar with the maximum HHV, mass yield and energy yield were evaluated as well. These results demonstrate that HTC is a suitable process to produce hydrochar, which can be used as a direct solid fuel. Highlights • Hydrothermal carbonization of sewage sludge with sawdust and cornstalk was investigated. • Response surface optimization hydrothermal carbonization process was studied. • The morphological, physicochemical, thermal, and crystalline properties of the hydrochar are reported. • The optimal HHV was 15.802 MJ/kg. • The process can produce hydrochar which can be used for direct combustion or activated carbon. Graphical abstract

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Review of the application of gasification and combustion technology and waste-to-energy technologies in sewage sludge treatment

Cited by 112 publications

References 137 publications

Acid-Mediated Hydrothermal Treatment of Sewage Sludge for Nutrient Recovery

Acid-Mediated Hydrothermal Treatment of Sewage Sludge for Nutrient Recovery

Pre‐combustioncarbon dioxide capture: A thermo‐economic comparison for dual‐stage Selexol process and combinedSulfinol‐Selexolprocess

Hydrothermal Carbonization of Sewage Sludge with Sawdust and Corn Stalk: Optimization of Process Parameters and Characterization of Hydrochar

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