Effects of pressure densification on strength and properties of cassava waste briquettes

Granado, Marcos Paulo Patta; Suhogusoff, Yuri Valentinovich Machado; Santos, Lídia; Yamaji, Fábio Minoru; Conti, Andrea Cressoni de

doi:10.1016/j.renene.2020.11.087

Cited by 49 publications

(22 citation statements)

References 18 publications

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“…Commonly, drying processes are performed to reduce the moisture of the biomass, this process can be done in the sun and in ambient conditions [29,31,39] or in a greenhouse [13,28]. Another common procedure is the grinding or crushing of the biomass in machines, such as hammer and knife mills [13,40] before particle size classification through sieves. The reduction and homogenization of the particles allow for better compaction of the feedstock, influencing its physical and mechanical characteristics [41].…”

Section: Briquetting 21 Biomass and Pre-treatments Used In The Production Of Briquettesmentioning

confidence: 99%

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Empirical Studies on Biomass Briquette Production: A Literature Review

et al. 2021

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The densification of raw material into fuel briquettes is one of the routes to convert biomass into energy. This method provides uniformity to the solid fuel, better physical and energy properties, facilitating its storage and transport, in addition to more homogeneous combustion. Given the importance of these characteristics, this work presents a literature review, emphasizing the experimental levels of the variables of the briquetting process, as well as on the most relevant quality parameters for obtaining briquettes. We also carry out a survey of the main technologies used in the production of briquettes, as well as the experimental methodologies and statistical analysis used in the planning and validation of processes. It was observed among the studies that the raw material granulometry, followed by pressure, initial moisture, compaction time and binder are the most used process variables for the production of briquettes. Other factors, such as the proportion of biomass, process temperature and thermal pre-treatments are used to obtain greater energetic and physical responses. Among the works, divergences were observed regarding the relevance and interaction of some process variables on the quality variables of the briquettes, indicating the need for the experiments to be mathematically modeled.

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Section: Briquetting 21 Biomass and Pre-treatments Used In The Production Of Briquettesmentioning

confidence: 99%

“…Despite the diversity of materials composing the briquettes, most of the research made use of hydraulic presses (manual, automated, bench and experimental). As the model in Figure 4, used in at least three of the works [34,40,46]. Piston presses, screw extruders and others were also used.…”

Section: Main Briquette Production Processesmentioning

confidence: 99%

Empirical Studies on Biomass Briquette Production: A Literature Review

et al. 2021

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“…We sought an idea from a professional with at least 20 years of working experience in construction management and who has participated in many construction projects in which he experienced construction first-hand information. [37,38] Time pressure [39,40] Difficulties for delivery vehicles accessing construction sites [41,42] 2 Transportation problem [43,44] Lack of supervision [45] Inefficient method of unloading [46,47] 3 Incorrect Procurement [48,49] Lack of on-site waste management plans [50,51] Insufficient protections during unloading [50,52] 4 Lack of design standards for reducing construction waste [53,54] Use of incorrect material requiring replacement [54,55] Waste resulting from cutting uneconomical shapes [56,57] 5 Low cost for construction waste disposal [58,59] Poor craftsmanship [60,61] Damage to materials on-site [62] 6…”

Section: Waste Reduction Hierarchy On 3r (Reduce Reuse and Recycle)mentioning

confidence: 99%

Modeling of 3R (Reduce, Reuse and Recycle) for Sustainable Construction Waste Reduction: A Partial Least Squares Structural Equation Modeling (PLS-SEM)

et al. 2021

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There is a lack of awareness and knowledge among the Malaysian construction industry about waste management reduction. Numerous nations worldwide have understood and have incorporated the concept of the 3R (reduce, reuse, and recycle) in waste management, and it has worked out well. This study investigated construction waste issues and developed a model for sustainable reduction by applying 3R using a partial least squares structural equation modeling PLS-SEM in Malaysia. The research methodology adopted the quantitative and qualitative approaches by sending a survey questionnaire to the relevant stakeholders to obtain their views or perceptions and interviewing an expert in the related field about waste reduction in the Malaysian construction industry. Three hundred thirty questionnaires were collected within six months of submission. The significant factors are determined using mean ranking for the reduce, reuse and recycle elements. Based on the results, the exploratory power of the study model is considered sustainable with R2 values of 0.83%. At the same time, the results of relationships between improving factors, policy-related factors, construction waste generated, and sustainable construction waste reduction were significant. Also, the findings revealed that the top factors for waste generation on reducing, reusing, and recycling are lack of design and documentation, and lack of guidance for effective construction waste-collecting. The paper will explore different and dynamic practices, such as recycling, reuse of construction waste management cost reduction, enabling stakeholders and managers to estimate and quantify the actual size of CWM costs and benefits for sustainable development goals.

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“…The cassava root is the main reason for cassava planting, where people in Asian countries consume it as food with a high carbohydrate source [10]. Meanwhile, given the abundant amount of cassava stem left to decay after harvesting, only a tiny amount of them was used for replanting purposes [11]. It was estimated that, for each mass of root production, 50% of the amount of the stem was produced based on weight [12].…”

Section: Introductionmentioning

confidence: 99%

Kinetics, Thermodynamics, and Isotherms of Methylene Blue Adsorption Study onto Cassava Stem Activated Carbon

Sulaiman

Amini

Danish

et al. 2021

Water

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Water treatment using activated carbon is widely accepted, despite its high production cost. Therefore, this study was aimed to investigate the potential of cassava stem in activated carbon form for methylene blue (MB) dye uptake from water. Raw cassava stem (RCS) was also utilized to evaluate the difference between cassava stem in its raw form and after being converted to the activated carbon (ACS). The MB adsorption from water using the RCS and ACS was done in this study. The batch adsorption study showed fast MB uptake by ACS at 60 min contact time, while higher adsorbent dosage and higher pH contributed to higher adsorption percentage. The thermodynamic study showed positive values of ∆H° of ACS, indicating that the adsorption process of MB was endothermic. Meanwhile, the negative value of ∆G° showed that the adsorption processes of MB were spontaneous. The thermodynamic study showed higher fitting to Langmuir isotherm, with data from the kinetic study showing better pseudo-second-order equation fitting, which suggests the chemisorption process had happened. The highest adsorption recorded by ACS was 384.61 mg/g, indicating the possibility of cassava stem as the lower cost raw material for activated carbon production with excellent adsorption characteristics.

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Effects of pressure densification on strength and properties of cassava waste briquettes

Cited by 49 publications

References 18 publications

Empirical Studies on Biomass Briquette Production: A Literature Review

Empirical Studies on Biomass Briquette Production: A Literature Review

Modeling of 3R (Reduce, Reuse and Recycle) for Sustainable Construction Waste Reduction: A Partial Least Squares Structural Equation Modeling (PLS-SEM)

Kinetics, Thermodynamics, and Isotherms of Methylene Blue Adsorption Study onto Cassava Stem Activated Carbon

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