Characterization of Malaysian domestic sewage sludge for conversion into fuels for energy recovery plants

Abbas, Ali; Ibrahim, A.; Nor, M Faizairi M; Aris, Mohd Shiraz

doi:10.1109/natpc.2011.6136402

Cited by 7 publications

(6 citation statements)

References 6 publications

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“…The mean heating value of the DDWS was found to be 16.84 MJ/kg, and it is observed this HHV is higher than the values reported in previous work [22]. The DWS samples were found to contain 34.29% carbon on the average, which is in good agreement with the values reported in the literature [21]. The mean percentage of Hydrogen in DWS was found to be 5.20%, and when compared to previous work, as reported in [23,24], the value of hydrogen in the current work is higher.…”

Section: Fuel Characterizationsupporting

confidence: 88%

“…During the drying process, the moisture content in DDWS was reduced, and the initial moisture content of the as-received DDWS samples was about 84.64%, after 7h of the drying process. By comparing the current samples with another Malaysian DDWS samples, it's found the initial moisture content of the current samples within the range 84% [21]. The mean heating value of the DDWS was found to be 16.84 MJ/kg, and it is observed this HHV is higher than the values reported in previous work [22].…”

Section: Fuel Characterizationmentioning

confidence: 52%

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Fuel Characterization Study and Simulation of Dewatered Domestic Wastewater Sludge Gasification Using ASPEN Plus

Ali¹,

Akıllı²

2019

acperpro

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Dewatered domestic wastewater sludge (DDWS) is one of the largest contributors of waste material in the world, and it immediately elevates local environmental problems, especially in the urban area. The conversion of this material into a usable form of green energy, such as syngas through gasification, can be a vital solution. Hence, this method not only solves the environmental issues related to DDWS disposal but also participates as an energy source. To achieve this goal, the essential fuel characterization, which includes initial moisture content, high heating value, ultimate analysis, and proximate analysis, were carried out to assess the potential energy in DDWS. Due to the high expenses of the successful design of the gasifier reactor, and there are no efficient methods to predict the gasification performance, the model of the DDWS gasification process using ASPEN Plus software was developed. As ASPEN Plus software does not contain a built-in gasifier reactor model, a combination of various reactors is used to simulate the gasification processes. These processes were divided out into two stages. In the first stage, DDWS was decomposed into its element by specifying yield distribution. By using Gibbs free energy minimization approach, the gasification reactions were modeled. The current model was validated with the previously published work. From the characterization findings, DDWS showed high initial moisture content 84.64% and potential energy with 16.84 MJ/kg high heating value. The proximate analysis based on the dry base of DDWS exhibited that more than 55.42 % of their mass is composed of volatile materials, and ash content is found to be less than 25.79%. The elemental of carbon, hydrogen, nitrogen, sulfur, and oxygen component in the DDWS sample was 34.29%, 5.20%, 5.80%, 3.12%, and 25.80%, respectively. By applying operating parameters, which include reaction temperature, reaction pressure, airflow rate, and moisture content, it's found that the increase in reaction temperature (673-1673K) enhanced the production of CO and H2 while increasing reaction pressure adversely affected the generation of H2 and CO. The increase in the airflow rate increases CO2 mole fraction in syngas and shift the gasification process to combustion. The heating value of syngas sharply decreased with the increase in the DDWS moisture content. From the simulation results, ASPEN Plus simulator software is presented with the high capability to be used as a predictive tool for optimization of the gasifier performance.

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Section: Fuel Characterizationsupporting

confidence: 88%

Section: Fuel Characterizationmentioning

confidence: 52%

Fuel Characterization Study and Simulation of Dewatered Domestic Wastewater Sludge Gasification Using ASPEN Plus

Ali¹,

Akıllı²

2019

acperpro

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“…The current state of sewage sludge treatment sees it primarily being used for landfill. Several studies had reported using sewage sludge to produce clay bricks (Liew et al, 2004), compost (Kala et al, 2009), as well as fuels (Abbas et al, 2011). Nevertheless, there are very few focused on anaerobic digestion.…”

Section: Characteristics Of Sewage Sludge In Malaysiamentioning

confidence: 99%

“…In an anaerobic digester, proper carbon to nitrogen (C/N) ratio is essential for efficient digestion (Kim et al, 2012). Characterization of sewage sludge from wastewater treatment plants in Malaysia can be seen in Table 3 (Abbas et al, 2011). The C/N ratio of sewage sludge is 6.…”

Section: Characteristics Of Sewage Sludge In Malaysiamentioning

confidence: 99%

Treatment of Sewage Sludge Using Anaerobic Digestion in Malaysia: Current State and Challenges

et al. 2019

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“…Furthermore, in supporting further our findings, this study also benefits from a vast range of data gathered from various valid references. All the supporting evidence extracted from (Mohd Din, 2010;Abbas et al, 2011;Abd, Wan and Presenter, 2011;Tuan Mat, Shaari and Kok How, 2011;Rebitanim et al, 2013;Akademi Sains Malaysia, 2015;Kumaran, 2016;Ellen MacArthur Foundation (EMF), 2016;Esa, Halog and Rigamonti, 2017;Mustapa, 2018;Sabeen et al, 2018;Carayannis et al, 2018;Hishammuddin et al, 2018;Hanum et al, 2019;IEA, 2019b;Priyadarshini and Abhilash, 2020;Durán-Romero et al, 2020 │ 17…”

Section: Methodsmentioning

confidence: 99%

Linking Circular Economy and Sustainable Energy Technology through Quintuple Helix Perspective

Ishak

Mustapa

Mohammad

et al. 2021

JGRCS

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Sustainable energy development had been signified as the pathways for the global energy transition, that drive important changes in how energy is being generated, transmitted, and consumed. The concept of Circular Economy (CE) has been proposed to address the environmental problem by minimizing the resource inputs and emission generation, reuse the waste and refuse from the conventional production process to obtain a further benefit. However, the contribution of CE to sustainable energy development and its link to Quintuple Helix (QH) elements is still ambiguous. This paper intends to fulfil this gap by examining the five main elements of the QH that contribute to the CE ecosystem, namely academia, companies, environment, government, and society. Innovative technologies from sludge management in urban wastewater sectors are discussed as the case study. A framework relating the QH with CE and innovation are proposed for future research. Practical recommendations associated with CE and sustainable energy policies are also provided.

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Characterization of Malaysian domestic sewage sludge for conversion into fuels for energy recovery plants

Cited by 7 publications

References 6 publications

Fuel Characterization Study and Simulation of Dewatered Domestic Wastewater Sludge Gasification Using ASPEN Plus

Fuel Characterization Study and Simulation of Dewatered Domestic Wastewater Sludge Gasification Using ASPEN Plus

Treatment of Sewage Sludge Using Anaerobic Digestion in Malaysia: Current State and Challenges

Linking Circular Economy and Sustainable Energy Technology through Quintuple Helix Perspective

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