利用生物降解抑制剂实现清洁能源:探索百里香酚和氟化钠在猪粪可持续管理中的应用

IF 3.2 4区 工程技术 Q2 CHEMISTRY, MULTIDISCIPLINARY
Yun-Ju Jeon, Tae-Hoon Kim, Eun-Sol Kim, Siyoung Seo, Yeo-Myeong Yun
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引用次数: 0

摘要

本研究评估了百里香酚和氟化钠(NaF)作为生物降解抑制剂(BIs)减少猪粪氨排放的有效性及其对厌氧消化(AD)能量回收过程的影响。结果表明,百里香酚和NaF均能显著降低猪粪中氨含量,且NaF的效果更佳。与对照组(15.9±0.6 mg NH4+-N)相比,施用50 mg百里香酚/g挥发性固体(VS)和50 mg NaF/g VS分别使氨氮减少62.1%和46.7%。对甲烷产量的探索突出表明,在浓度高达200 mg/L时,百里香酚和NaF都不会对AD产生负面影响,这突出了BIs浓度与AD性能之间的剂量依赖关系。通过动力学分析,确定百里香酚和NaF的抑制浓度(IC)分别为462.4 mg百里香酚/L和335.8 mg NaF/L时为IC30。BIs还显著改变了微生物多样性及其丰度,对甲烷生产潜力产生了关键影响。该研究表明,通过AD优化能量回收过程,在不影响甲烷产量的情况下平衡氨排放控制的需要,需要仔细管理猪粪中BIs残留水平。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Harnessing Biodegradation Inhibitors for Cleaner Energy: Exploring Thymol and Sodium Fluoride in Sustainable Swine Manure Management

This study evaluated the effectiveness of thymol and sodium fluoride (NaF) as biodegradation inhibitors (BIs) in mitigating ammonia emissions from swine manure and their implications on anaerobic digestion (AD) for energy recovery processes. The core findings revealed that both thymol and NaF markedly lowered ammonia levels in swine manure during the 10 days of storage with NaF showing superior efficacy. The application of 50 mg of thymol/g volatile solids (VS) and 50 mg of NaF/g VS resulted in ammonia reductions of 62.1% and 46.7%, respectively, compared to that in the control (15.9 ± 0.6 mg NH4+-N). The exploration of methane production highlighted that at concentrations up to 200 mg/L, neither thymol nor NaF negatively influenced AD, highlighting a dose-dependent relationship between BIs concentration and AD performance. By applying kinetic analysis, the inhibitory concentrations (IC) for thymol and NaF were determined to be IC30 at 462.4 mg thymol/L and 335.8 mg NaF/L, respectively. BIs also significantly altered microbial diversity and its abundance, crucially affecting methane production potential. This research indicated the importance of carefully managing residual levels of BIs in swine manure to optimize the energy recovery process through AD, balancing the need for ammonia emission control without compromising methane output.

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来源期刊
Korean Journal of Chemical Engineering
Korean Journal of Chemical Engineering 工程技术-工程:化工
CiteScore
4.60
自引率
11.10%
发文量
310
审稿时长
4.7 months
期刊介绍: The Korean Journal of Chemical Engineering provides a global forum for the dissemination of research in chemical engineering. The Journal publishes significant research results obtained in the Asia-Pacific region, and simultaneously introduces recent technical progress made in other areas of the world to this region. Submitted research papers must be of potential industrial significance and specifically concerned with chemical engineering. The editors will give preference to papers having a clearly stated practical scope and applicability in the areas of chemical engineering, and to those where new theoretical concepts are supported by new experimental details. The Journal also regularly publishes featured reviews on emerging and industrially important subjects of chemical engineering as well as selected papers presented at international conferences on the subjects.
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