Household food waste in Serbia – Attitudes, quantities and global warming potential

2019 ◽  
Vol 229 ◽  
pp. 44-52 ◽  
Author(s):  
Ilija Djekic ◽  
Zorana Miloradovic ◽  
Sofija Djekic ◽  
Igor Tomasevic
Keyword(s):  
Global Warming ◽  
Food Waste ◽  
Global Warming Potential ◽  
Household Food

scholarly journals Environmental impact analysis of food waste anaerobic digestion and products utilization process

2019 ◽  
Vol 118 ◽  
pp. 04025
Author(s):  
Tao Wang ◽  
Fei Wang ◽  
Yangqing Hu
Keyword(s):  
Global Warming ◽  
Anaerobic Digestion ◽  
Environmental Impacts ◽  
Food Waste ◽  
Global Warming Potential ◽  
Impact Analysis ◽  
Combustion Engine ◽  
High Energy ◽  
Market Demand ◽  
Fuel Gas

Anaerobic digestion technology is a widely used technology for food waste treatment. It can produce clean fuel gas and realize harmless treatment of waste. Different ways of utilizing the digestion products vary depending on the market demand and production technology. In this paper, life cycle assessment (LCA) was conducted to analyse the environmental impacts of different processes in food waste anaerobic digestion treatment and compare different utilization strategies of digestion products especially the digestate. The results of this study indicated that the incineration of digestate had advantages in most environmental impacts except global warming potential (GWP), compared with composting as fertilizers. Besides that, incineration had the lower energy efficiency due to drying heat demand. The high energy conversion efficiency of internal combustion engine contributed much to reducing environmental impacts. It’s worth mentioning that the sufficient combustion performance of micro-turbine resulted in smaller global warming potential (GWP) and eutrophication potential (EP).

Quantities, environmental footprints and beliefs associated with household food waste in Bosnia and Herzegovina

2019 ◽  
Vol 37 (12) ◽  
pp. 1250-1260 ◽  
Author(s):  
Ilija Djekic ◽  
Sabina Operta ◽  
Nermina Djulancic ◽  
Jose M Lorenzo ◽  
Francisco J Barba ◽  
...  
Keyword(s):  
Global Warming ◽  
Bosnia And Herzegovina ◽  
Food Waste ◽  
Quality Function Deployment ◽  
Food Packaging ◽  
Plastic Packaging ◽  
Environment Model ◽  
Household Food ◽  
Environmental Footprints ◽  
Waste Food

The objectives of this research were to identify the quantities and global warming, acidification and eutrophication potentials associated with household food waste in Bosnia and Herzegovina. In parallel, this study investigated perceptions related to food waste and using the quality function deployment for environment model, correlated reasons for discarding food waste and beliefs associated with food waste. Based on this study, it is estimated that around 2.8 kg of food waste is disposed of by the average household every week. Global warming, acidification and eutrophication potentials associated with household food waste are, on average, 3.49 kg CO2e/week, 2.42 g SO2e/week and 8.70 g PO4e/week, respectively. Also, Bosnian households discard over 80 different pieces of food packaging waste weekly, where plastic packaging is the most dominant packing type. The highest ranked reason for discarding food is linked to plate leftovers. In general, Bosnian citizens feel guilty when they waste food.

Upcycling food waste using black soldier fly larvae: Effects of further composting on frass quality, fertilising effect and its global warming potential

2021 ◽  
Vol 288 ◽  
pp. 125664
Author(s):  
Shuang Song ◽  
Alvin Wei Liang Ee ◽  
Jonathan Koon Ngee Tan ◽  
Jia Chin Cheong ◽  
Zhongyu Chiam ◽  
...  
Keyword(s):  
Global Warming ◽  
Food Waste ◽  
Global Warming Potential ◽  
Black Soldier Fly ◽  
Black Soldier Fly Larvae ◽  
Fly Larvae

scholarly journals Decision-Making Process in the Circular Economy: A Case Study on University Food Waste-to-Energy Actions in Latin America

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2291
Author(s):  
Laura Brenes-Peralta ◽  
María F. Jiménez-Morales ◽  
Rooel Campos-Rodríguez ◽  
Fabio De Menna ◽  
Matteo Vittuari
Keyword(s):  
Decision Making ◽  
Global Warming ◽  
Anaerobic Digestion ◽  
Food Waste ◽  
Global Warming Potential ◽  
Waste To Energy ◽  
Life Cycle Thinking ◽  
Analytic Hierarchy ◽  
Trade Offs

Economies have begun to shift from linear to circular, adopting, among others, waste-to-energy approaches. Waste management is known to be a paramount challenge, and food waste (FW) in particular, has gained the interest of several actors due to its potential impacts and energy recovery opportunities. However, the selection of alternative valorization scenarios can pose several queries in certain contexts. This paper evaluates four FW valorization scenarios based on anaerobic digestion and composting, in comparison to landfilling, by applying a consistent decision-making framework through a combination of linear programming, Life Cycle Thinking (LCT), and Analytic Hierarchy Process (AHP). The evaluation was built upon a case study of five universities in Costa Rica and portrayed the trade-offs between environmental impacts and cost categories from the scenarios and their side flows. Results indicate that the landfill scenario entails higher Global Warming Potential and Fresh Water Eutrophication impacts than the valorization scenarios; however, other impact categories and costs are affected. Centralized recovery facilities can increase the Global Warming Potential and the Land Use compared to semi-centralized ones. Experts provided insights, regarding the ease of adoption of composting, in contrast to the potential of energy sources substitution and economic savings from anaerobic digestion.

Quantifying global warming potential of alternative biorefinery systems for producing fuels from Chinese food waste

2021 ◽  
Vol 130 ◽  
pp. 38-47
Author(s):  
Hanwen Guo ◽  
Yan Zhao ◽  
Anders Damgaard ◽  
Qian Wang ◽  
Hongtao Wang ◽  
...  
Keyword(s):  
Global Warming ◽  
Food Waste ◽  
Global Warming Potential ◽  
Chinese Food

scholarly journals Composting Process and Gas Emissions during Food Waste Composting under the Effect of Different Additives

2020 ◽  
Vol 12 (18) ◽  
pp. 7811 ◽  
Author(s):  
Hyun Young Hwang ◽  
Seong Heon Kim ◽  
Jaehong Shim ◽  
Seong Jin Park
Keyword(s):  
Global Warming ◽  
Food Waste ◽  
Global Warming Potential ◽  
Ghg Emissions ◽  
Control Treatment ◽  
Gas Emissions ◽  
Global Warming Impact ◽  
Composting Process ◽  
Mature Compost ◽  
Higher Temperature

This study investigated the effects of adding mature compost (MC) and vermicompost (VC) on controlling gas emissions and compost quality during food waste (FW) composting. In addition to a control treatment (only food waste), four treatments were designed to mix the initial FW with varying rates of MC and VC (5.0% and 7.5%). The composting process was monitored for 84 days. Results indicate that the addition of MC and VC resulted in higher temperature, prolonged the thermophilic stage and reduced NH3 and greenhouse gas (GHG) emissions. Compared to the control, the loss of NH3-N was decreased by 29–69%, and the global warming impact was also mitigated by 49–61%. The largest reductions in NH3 and global warming potential (GWP) were found for 7.5% VC and 5% MC, respectively. The treatments with additives more rapidly achieved the required maturity value. This research suggests that the addition of 7.5% MC and VC is suitable for food waste composting.

scholarly journals Variation in Soil Properties Regulate Greenhouse Gas Fluxes and Global Warming Potential in Three Land Use Types on Tropical Peat

Atmosphere ◽  
2018 ◽  
Vol 9 (12) ◽  
pp. 465 ◽  
Author(s):  
Kiwamu Ishikura ◽  
Untung Darung ◽  
Takashi Inoue ◽  
Ryusuke Hatano
Keyword(s):  
Global Warming ◽  
Soil Moisture ◽  
Groundwater Level ◽  
Global Warming Potential ◽  
C:N Ratio ◽  
Co2 Flux ◽  
Nitrate Content ◽  
N2o Flux ◽  
Ch4 Flux ◽  
In The Beginning

This study investigated spatial factors controlling CO2, CH4, and N2O fluxes and compared global warming potential (GWP) among undrained forest (UDF), drained forest (DF), and drained burned land (DBL) on tropical peatland in Central Kalimantan, Indonesia. Sampling was performed once within two weeks in the beginning of dry season. CO2 flux was significantly promoted by lowering soil moisture and pH. The result suggests that oxidative peat decomposition was enhanced in drier position, and the decomposition acidify the peat soils. CH4 flux was significantly promoted by a rise in groundwater level, suggesting that methanogenesis was enhanced under anaerobic condition. N2O flux was promoted by increasing soil nitrate content in DF, suggesting that denitrification was promoted by substrate availability. On the other hand, N2O flux was promoted by lower soil C:N ratio and higher soil pH in DBL and UDF. CO2 flux was the highest in DF (241 mg C m−2 h−1) and was the lowest in DBL (94 mg C m−2 h−1), whereas CH4 flux was the highest in DBL (0.91 mg C m−2 h−1) and was the lowest in DF (0.01 mg C m−2 h−1), respectively. N2O flux was not significantly different among land uses. CO2 flux relatively contributed to 91–100% of GWP. In conclusion, it is necessary to decrease CO2 flux to mitigate GWP through a rise in groundwater level and soil moisture in the region.

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