气候变化领域集成服务门户(CCPortal): Low carbon hydrogen production from a waste-based biorefinery system and environmental sustainability assessment

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DOI	10.1039/d0gc03063e
	Low carbon hydrogen production from a waste-based biorefinery system and environmental sustainability assessment
	Sarkar O.; Katakojwala R.; Venkata Mohan S.
发表日期	2021
ISSN	14639262
起始页码	561
结束页码	574
卷号	23 期号:1
英文摘要	Production of low carbon biofuels and biochemicals from renewable feedstocks using a biological process is considered a sustainable alternative to the fossil-fuel-based linear economy. This study demonstrated the pilot-scale (10 m3) production of biohydrogen (bio-H2) and volatile fatty acids/carboxylic acids (VFA) through acidogenic fermentation (AF) using food waste (FW) as renewable feedstock. Bio-H2 production of 54 288 L (155.10 LH2 per kg COD) along with 25.77 g L-1 of VFA composed of acetic (HAc: 15.2 ± 1.98 g L-1), propionic (HPr: 4.89 ± 1.26 g L-1) and butyric (HBu 5.67 ± 0.96 g L-1) acids was achieved within 48 h of the fermentation period. The further acidogenic process was integrated with a biorefinery platform (methanogenesis + photosynthesis) in a circular loop strategy which helped derive multiple biobased products (CH4, algal biomass, O2 and treated water for reuse) from fatty acid-rich acidogenic effluent and untreated COD of AF. The whole bio-manufacturing unit (acidogenesis + methanogenesis + photosynthesis) converted the renewable feedstock (waste/wastewater) into fuels and platform chemicals, in analogy to a conventional oil refinery with a maximized resource recovery. The life cycle assessment (LCA) tool was employed to study the environmental impact of both the bio-H2 (standalone, ST) and waste biorefinery (WB) processes, and the results depicted that the WB approach offered a relatively low impact (approx. 3.5 fold less than ST). The approach helped determine the flow of carbon and its conversion to products; this aided the reduction of carbon emissions as well as minimized the burden on natural resources with the biosynthesis of green H2 and other value-added products, addressing carbon neutrality with bioeconomy. © The Royal Society of Chemistry.
scopus关键词	Biochemistry; Bioconversion; Bioeconomy; Biofuels; Butyric acid; Carbon; Effluents; Feedstocks; Fermentation; Food waste; Fossil fuels; Fuel economy; Hydrogen production; Life cycle; Oils and fats; Photosynthesis; Propionic acid; Refining; Water conservation; Water treatment; Acidogenic fermentation; Biofuels and biochemicals; Carbon neutralities; Environmental sustainability; Fermentation periods; Life Cycle Assessment (LCA); Renewable feedstocks; Value added products; Volatile fatty acids
来源期刊	Green Chemistry
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177134
作者单位	Bioengineering and Environmental Sciences Lab, Department of Energy and Environmental Engineering (DEEE), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
推荐引用方式 GB/T 7714	Sarkar O.,Katakojwala R.,Venkata Mohan S.. Low carbon hydrogen production from a waste-based biorefinery system and environmental sustainability assessment[J],2021,23(1).
APA	Sarkar O.,Katakojwala R.,&Venkata Mohan S..(2021).Low carbon hydrogen production from a waste-based biorefinery system and environmental sustainability assessment.Green Chemistry,23(1).
MLA	Sarkar O.,et al."Low carbon hydrogen production from a waste-based biorefinery system and environmental sustainability assessment".Green Chemistry 23.1(2021).