水热预处理：利用棕榈油厂废水生产生物氢的可持续方法

IF 7.1 2区工程技术 Q1 ENERGY & FUELS

Sustainable Energy Technologies and Assessments Pub Date : 2024-11-01 DOI:10.1016/j.seta.2024.104062

Bidattul Syirat Zainal , Kai Ling Yu , Hassan Mohamed , Hwai Chyuan Ong , T.M. Indra Mahlia

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引用次数: 0

摘要

在马来西亚，棕榈油厂废水（POME）对环境构成了重大挑战，需要进行有效的废水管理。本研究探索了处理 POME 的创新方法，重点是可持续生物制氢。因此，本研究旨在调查使用水热法进行基质预处理的最佳条件，这是生物质生物转化为氢的重要步骤。通过暗发酵过程确定生物制氢量，采用 Box-Behnken 设计优化基质预处理温度、保温时间和 POME 百分比的效率。该研究发现，水热预处理的最佳条件是温度为 212 °C，保温时间为 30 分钟，并使用 100% 的 POME。在这些条件下，该研究的化学需氧量去除率（CODrem.eff）达到了 78%。此外，该工艺还产生了 242 毫升生物氢总量，最终 pH 值稳定在 6.7。微生物分析表明，在最佳样品中，氯菌门占主导地位，同时还存在 T78 和梭状芽孢杆菌。这项研究开创了生物制氢的水热预处理方法，证明了该方法在提高 CODrem.eff 和氢气产量方面的有效性，从而为棕榈油废物管理提供了一种可持续的解决方案。

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Hydrothermal pretreatment: A sustainable approach to biohydrogen production from palm oil mill effluent

Palm oil mill effluent (POME) poses a significant environmental challenge in Malaysia, necessitating effective wastewater management. This study explores innovative methods for treating POME, focusing on sustainable biohydrogen production. Therefore, this research aims to investigate the optimum conditions for substrate pretreatment using hydrothermal, a vital step in the bioconversion of biomass to hydrogen. Biohydrogen production was determined through a dark fermentation process using a Box-Behnken design to optimise the efficiency of substrate pretreatment temperature, holding time and POME percentage. This study found that the optimal conditions for hydrothermal pretreatment were achieved at 212 °C, with a 30 min holding time, and utilising 100 % POME. Under these conditions, the study performed a notable 78 % of chemical oxygen demand removal efficiency (COD_rem.eff). Additionally, the process yielded 242 ml of total biohydrogen volume, with the final pH stabilised at 6.7. Microbial analysis showed that Chloroflexota phylum is dominant in the optimum sample, with the presence of T78 and Clostridia species. This research pioneers the hydrothermal pretreatment method for biohydrogen production, demonstrating its effectiveness in enhancing COD_rem.eff and hydrogen yield, thus providing a sustainable solution to palm oil waste management.

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来源期刊

Sustainable Energy Technologies and Assessments Energy-Renewable Energy, Sustainability and the Environment

CiteScore

12.70

自引率

12.50%

发文量

1091

期刊介绍： Encouraging a transition to a sustainable energy future is imperative for our world. Technologies that enable this shift in various sectors like transportation, heating, and power systems are of utmost importance. Sustainable Energy Technologies and Assessments welcomes papers focusing on a range of aspects and levels of technological advancements in energy generation and utilization. The aim is to reduce the negative environmental impact associated with energy production and consumption, spanning from laboratory experiments to real-world applications in the commercial sector.