4.7 Article

Enhanced waste hot-pot oil (WHPO) anaerobic digestion for biomethane production: Mechanism and dynamics of fatty acids conversion

期刊

CHEMOSPHERE
卷 307, 期 -, 页码 -

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2022.135955

关键词

Anaerobic digestion; Biomethane; Fatty acids; Green energy; Waste-to-Energy

资金

  1. National Natural Science Foundation of China [52050410328, NSFC11572057, NSFC11832007]
  2. Start-up Funds of Chengdu University [2081920048, 2081921089]

向作者/读者索取更多资源

Resource depletion and climate changes have driven the exploration of alternatives to fossil fuels. This study found that waste hot-pot oil (WHPO) can be effectively used as a lipidic waste for anaerobic digestion, producing biogas as a clean energy resource. The results show that WHPO can be efficiently converted and utilized in anaerobic digestion, with the highest conversion efficiency recorded at the highest WHPO treatment.
Resource depletion and climate changes due to human activities and excessive burning of fossil fuels are the driving forces to explore alternatives clean energy resources. Anaerobic digestion of bio-waste provides a unique opportunity to fulfil this objective through biogas production. The present study aimed to evaluate waste hot-pot oil (WHPO) at different feeding ratios as a novel lipidic waste for anaerobic mono-digestion. The highest recorded maximum biomethane potential (M-max) was 274.1 L kg(-1) VS at 1.2% WHPO, which showed significant differences with those of 0.8% and 1.6% (227.09 and 237.62 L kg(-1) VS, respectively). The changes in volatile fatty acids (VFAs), medium chain fatty acids (MCFAs), and long-chain fatty acids (LCFAs) as intermediates of WHPO decomposition were investigated before and after anaerobic digestion. Results showed efficient production and utilization of VFAs at all studied WHPO ratios, whereas the maximum utilization of VFAs (90-95%) was recorded in the reactors with up to 1.2 %WHPO. Although lipid conversion efficiency decreased by increasing the WHPO ratio, 81.2% lipid conversion efficiency was recorded at the highest applied WHPO treatment, which confirms the potential of WHPO as a promising feedstock for anaerobic digestion. The present results will have major implications towards efficient energy recovery and biochemical management of lipidicwaste through efficient anaerobic digestion.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据