عنوان
پدید آورنده
موضوع
رده
کتابخانه
محل استقرار
TL51041
انگلیسی
Comparative Assessment of the Economic and Environmental Impacts of Food Waste Fermentation on Value-added Products
[Thesis]
Muhammad, Noor Intan Shafinas
Rosentrater, Kurt A.
Iowa State University
2019
151 p.
Ph.D.
Iowa State University
2019
The increasing amount of food waste (FW) is one of the most challenging problems around the world. The remarkable amount of FW produced is driven by various factors such as population growth, modernization, safety policy, culture, lifestyle, and human behavior. FW commonly will end up in the landfills and create more problems to the environment, ecosystem, human health, and economy. This organic waste is easy to decompose and emits greenhouse gases which will increase the global warming effect. Additionally, leachate from the landfill has the potential to contaminate nearby groundwater systems. It is important to divert FW from landfills and find a better option such as utilizing it to produce other value-added products. Depending on the FW composition, this waste has the potential to be used in fermentation technology and to be converted into ethanol as a primary product. Ethanol has a demand in different industries such as transportation fuel, cosmetic, pharmaceutical, and food. Additionally, waste from the fermentation process can be used as fertilizer in both liquid and solid form as it has a market value. In particular, solid waste stream can be burnt and converted into energy through combined heat and power (CHP) processes. In this study, the main focus was to make a comparative assessment of the economic and environmental impact of FW fermentation on three value-added products: ethanol, liquid fertilizer, and bio-compost or energy. SuperPro Designer V9.0 simulation software was used to model the FW fermentation plant with commercial scale. Techno-economic analysis (TEA) and life cycle assessment (LCA) were used to determine the impact of this process. A TEA study was conducted on five scenarios: (a) FW fermentation process with hydrolysis enzymes and 2-step distillation system, (b) FW fermentation process without enzymes and 2-step distillation system, (c) FW fermentation process without enzymes and 1-step distillation system (d) FW fermentation process without enzymes and membrane distillation, and (e) combined heat process (CHP) integrated with FW fermentation process. Discounted cash flow analysis was used to estimate the minimum selling ethanol (MSE) price when a net present value (NPV) is equal to zero, and the internal rate of return (IRR) is 10%. Results from this analysis showed that the lowest MSE was
Agricultural economics
Agricultural engineering
Agriculture
Alternative energy
Economics
Energy
Environmental justice
Muhammad, Noor Intan Shafinas
Rosentrater, Kurt A.
Iowa State University
مطالعه متن کتاب p
[Thesis]
276903
a
Y
