Techno-economic analysis of a food waste valorization process via microalgae cultivation and co-production of plasticizer, lactic acid and animal feed from algal biomass and food waste

被引：104

作者：

Kwan, Tsz Him ^{[1
]}

Pleissner, Daniel ^{[1
,2
]}

Lau, Kin Yan ^{[1
]}

Venus, Joachim ^{[2
]}

Pommeret, Aude ^{[1
]}

Lin, Carol Sze Ki ^{[1
]}

机构：

[1] City Univ Hong Kong, Sch Energy & Environm, Kowloon, Hong Kong, Peoples R China

[2] Leibniz Inst Agr Engn Potsdam Bornim, Dept Bioengn, Potsdam, Germany

来源：

BIORESOURCE TECHNOLOGY | 2015年 / 198卷

关键词：

Food waste valorization; Microalgae; Plasticizer; Lactic acid; Animal feed; FERMENTATION; CHEMICALS; FEASIBILITY; ETHANOL; FUELS; COST;

D O I：

10.1016/j.biortech.2015.09.003

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

A techno-economic study of food waste valorization via fungal hydrolysis, microalgae cultivation and production of plasticizer, lactic acid and animal feed was simulated and evaluated by Super-Pro Designer (R). A pilot-scale plant was designed with a capacity of 1 metric ton day(-1) of food waste with 20 years lifetime. Two scenarios were proposed with different products: Scenario (I) plasticizer & lactic acid, Scenario (II) plasticizer & animal feed. It was found that only Scenario I was economically feasible. The annual net profits, net present value, payback period and internal rate of return were US$ 422,699, US$ 3,028,000, 7.56 years and 18.98%, respectively. Scenario II was not economic viable due to a deficit of US$ 42,632 per year. Sensitivity analysis showed that the price of lactic acid was the largest determinant of the profitability in Scenario I, while the impact of the variables was very close in Scenario II. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：292 / 299

页数：8

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