食品废弃物的经济评估增值及其有价值副产物的生成。
Valorisation of food waste for valuable by-products generation with economic assessment.
机构信息
College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China.
College of Horticulture, Northwest A&F University, Xi'an 712100, China.
出版信息
J Environ Manage. 2023 Jul 15;338:117762. doi: 10.1016/j.jenvman.2023.117762. Epub 2023 Mar 30.
This study assessed the techno-economic feasibility of a biorefinery for valuable by-products (mainly hydrogen, ethanol and fertilizer) generation from food waste. The plant was designed to be built in Zhejiang province (China) with a processing capacity of 100 t food waste per day. It was found that the total capital investment (TCI) and annual operation cost (AOC) of the plant were US$ 7625549 and US$ 2432290.7 year, respectively. After the tax, US$ 3141867.6 year of net profit could be reached. The payback period (PBP) was 3.5 years at a 7% discount rate. The internal rate of return (IRR) and return on investment (ROI) were 45.54% and 43.88%, respectively. Shutdown condition could happen with the feed of food waste less than 7.84 t day (2587.2 t year) for the plant. This work was beneficial for attracting interests and even investment for valuable by-products generation from food waste in large scale.
本研究评估了从食品废物中生产有价值的副产品（主要是氢气、乙醇和肥料）的生物炼制的技术经济可行性。该工厂设计建在浙江省（中国），日处理能力为 100 吨食品废物。研究发现，该工厂的总资本投资（TCI）和年运营成本（AOC）分别为 7625549 美元和 2432290.7 美元。在纳税后，每年可获得 3141867.6 美元的净利润。在 7%的折现率下，投资回收期（PBP）为 3.5 年。内部收益率（IRR）和投资回报率（ROI）分别为 45.54%和 43.88%。当工厂的食品废物进料量低于 7.84 吨/天（2587.2 吨/年）时，可能会出现停产情况。这项工作有助于吸引对大规模从食品废物中生产有价值副产品的兴趣，甚至投资。
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