Sustainable biochar production from shrimp pond algal waste: Optimization of pyrolysis parameters using the L9 Taguchi method

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy Pub Date : 2025-09-18 DOI:10.1016/j.biombioe.2025.108401

Shushree Prachi Palai , Soumyaranjan Senapati , Sthitiprajna Muduli , Alok Kumar Panda , Tapan Kumar Bastia , Pankaj Kumar Parhi

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Abstract

Algal blooms (Spirogyra), a common environmental challenge in shrimp farming, offer a valuable opportunity for sustainable waste conversion into biochar. This study evaluates the feasibility of producing biochar from algal biomass through pyrolysis, focusing on optimizing three key process parameters: temperature, residence time, and heating rate. An L9 Taguchi orthogonal array was used to design the experiments. Biochar yield and quality were analyzed using advanced characterization techniques, including PXRD, FESEM, EDAX, CHNS, RAMAN, FTIR, BET, XPS, analysis, particle density, and pH measurement, to understand the physicochemical properties of the resulting biochar. From the characterization data, the optimization of biochar yield in the context of the functional group's perspective and surface area is 70.5 % and 66.1 %, respectively. The pyrolyzed product, pristine biochar, demonstrated that processing conditions significantly influence biochar structure and properties quantitatively and qualitatively. These findings provide insight into optimal pyrolysis parameters for enhancing biochar quality, with potential applications in environmental remediation and agricultural sustainability.

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利用虾池藻类废弃物可持续生产生物炭：L9田口法优化热解参数

藻华（Spirogyra）是虾类养殖中常见的环境挑战，为将废物可持续转化为生物炭提供了宝贵的机会。本研究评估了藻类生物质热解生产生物炭的可行性，重点优化了三个关键工艺参数：温度、停留时间和加热速率。采用L9田口正交阵列设计试验。利用先进的表征技术，包括PXRD、FESEM、EDAX、CHNS、RAMAN、FTIR、BET、XPS、分析、颗粒密度和pH测量，分析了生物炭的产率和质量，以了解所得生物炭的物理化学性质。从表征数据来看，从官能团角度和比表面积角度优化的生物炭产率分别为70.5%和66.1%。热解产物——原始生物炭表明，加工条件对生物炭的结构和性质有显著的定量和定性影响。这些发现为提高生物炭质量提供了最佳热解参数，在环境修复和农业可持续性方面具有潜在的应用前景。

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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.