Biohydrogen production: strategies to improve process efficiency through microbial routes.
Biohydrogen production: strategies to improve process efficiency through microbial routes.
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DOI：
10.3390/ijms16048266
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发表时间：
2015-04-14
影响因子：
5.6
通讯作者：
Lee DW
中科院分区：
文献类型：
--
作者：
Chandrasekhar K;Lee YJ;Lee DW
目前以化石燃料为基础的能源生产已经导致了大规模的工业发展。然而，对化石燃料的依赖导致埋藏的可燃地质沉积物的自然资源的显著消耗，并导致温室气体排放对全球气候的负面影响。因此，巨大的努力是针对从化石燃料过渡到无污染和可再生能源。一个潜在的替代品是生物氢（H2），一种具有高能量产量的清洁能源载体;在H2燃烧时，H2O是唯一的主要副产品。近几十年来，H2的吸引力和可再生特性使我们开发了各种生物途径来生产H2。根据产氢方式的不同，生物制氢途径可分为光生物发酵、厌氧发酵、酶法和微生物电解以及这些方法的组合。因此，本次审查主要集中在生物生产H2的路线的评价。特别是，我们评估这些生物过程的效率和可行性方面的影响操作的因素，我们描绘的局限性。此外，替代方案，如生物强化，多个过程集成，微生物电解，以提高工艺效率进行了讨论，以解决工业级的应用。
The current fossil fuel-based generation of energy has led to large-scale industrial development. However, the reliance on fossil fuels leads to the significant depletion of natural resources of buried combustible geologic deposits and to negative effects on the global climate with emissions of greenhouse gases. Accordingly, enormous efforts are directed to transition from fossil fuels to nonpolluting and renewable energy sources. One potential alternative is biohydrogen (H2), a clean energy carrier with high-energy yields; upon the combustion of H2, H2O is the only major by-product. In recent decades, the attractive and renewable characteristics of H2 led us to develop a variety of biological routes for the production of H2. Based on the mode of H2 generation, the biological routes for H2 production are categorized into four groups: photobiological fermentation, anaerobic fermentation, enzymatic and microbial electrolysis, and a combination of these processes. Thus, this review primarily focuses on the evaluation of the biological routes for the production of H2. In particular, we assess the efficiency and feasibility of these bioprocesses with respect to the factors that affect operations, and we delineate the limitations. Additionally, alternative options such as bioaugmentation, multiple process integration, and microbial electrolysis to improve process efficiency are discussed to address industrial-level applications.
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