scholarly journals A review of economic and environmental consequences from waste-based power generation: Evidence from Taiwan

2020 ◽  
pp. 014459871990028
Author(s):  
Liguo Zhang ◽  
Yunling Hu ◽  
Liang Cai ◽  
Chih-Chun Kung
Keyword(s):  
Modern Society ◽  
Clean Energy ◽  
Energy Conversion Efficiency ◽  
Economic Benefits ◽  
Policy Implications ◽  
Waste To Energy ◽  
Energy Technology ◽  
Municipal Solid Wastes ◽  
Environmental Consequences ◽  
Regional Population

Energy sustainability is keyed to social development, and thus finding renewable and clean energy sources is crucial to modern society. Waste to energy technology is of particular interest in recent years because the feedstock supply is relatively stable and the technology is less influenced by climate and geographic conditions. This study first reviews this technology, and then provides a case study to explore the potential investment, economic benefits, and environmental consequences associated with such an application. The results indicate that the energy conversion efficiency and net social benefits are highly dependent on the composition of the wastes, the transportation costs, and the distribution of regional population. The results imply that for the application of waste to energy technology to be efficient and effective, the locations of refuse plants play an important role, as well as the recycled rates of municipal solid wastes. Policy implications regarding these points are also discussed in detail.

scholarly journals Utilization of Biodegradable Wastes as a Clean Energy Source in the Developing Countries: A Case Study in Myanmar

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 3183 ◽  
Author(s):  
Maw Tun ◽  
Dagmar Juchelková ◽  
Helena Raclavská ◽  
Veronika Sassmanová
Keyword(s):  
Energy Source ◽  
Developing Countries ◽  
Greenhouse Gas ◽  
Clean Energy ◽  
Economic Benefits ◽  
Current Situation ◽  
Energy Utilization ◽  
Waste To Energy ◽  
Ghg Emission ◽  
Clean Energy Source

Nowadays, waste-to-energy has become a type of renewable energy utilization that can provide environmental and economic benefits in the world. In this paper, we evaluated the quality of twelve biodegradable waste samples from Myanmar by binder laboratory heating and drying oven at 105 °C. The calculation methods of the Intergovernmental Panel on Climate Change (IPCC) and Institute for Global Environmental Strategies (IGES) were used for the greenhouse gas emission estimation from waste disposal at the open dumpsites, anaerobic digestion, and waste transportation in the current situation of Myanmar. Greenhouse gas (GHG) emission and fossil fuel consumption of the improved biodegrade waste utilization system were estimated and both were found to be reduced. As a result, volume and weight of the biodegradable wastes with 100% moisture reduction were estimated at approximately 5 million cubic meters per year and 2600 kilotonnes per year, respectively, in 2021. The total GHG emissions in the current situation amounted to approximately 1500 and 1800 Gigagrams of CO2-eq per year in 2019 and 2021, respectively, while the total GHG emission avoidance from a sustainable approach amounted to 3500 and 4000 Gigagrams of CO2-eq per year, respectively. The study aimed at highlighting the utilization of biodegradable wastes as a clean energy source in developing countries.

scholarly journals Renewable Power Potential from Municipal Solid Waste: A Case Study in Jiangxi, China

SAGE Open ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 215824402110613
Author(s):  
Rafiq Muhammad Aftab ◽  
Liguo Zhang ◽  
Chih-Chun Kung
Keyword(s):  
Power Generation ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Energy Security ◽  
Emission Reduction ◽  
Fossil Fuels ◽  
Animal Feed ◽  
Modern Society ◽  
Clean Energy ◽  
Policy Implications

Development of renewable energy is important to modern society because climate change induced from fossil use has resulted in severe and possibly irreversible environmental impacts such as sea level rise, desertification, diminished land productivity, and increased possibility of extreme events. Therefore, the utilization of renewable and clean energy not only increases regional energy security but also alleviate the environmental risk. In this study, we employ the lifecycle assessment to examine the electricity generation from the use of municipal solid waste in China, and then investigate the emission reduction from this application. Different supply patterns of the wastes are also compared to make the results more robust. The results show that if recycled wastes are fully utilized, approximately 11,107 GWh can be generated, along with a profit of $1.2 billion from energy sales. In this case, the CO2 emission will reduce by 9.7 million metric tons. If the food waste is used in compositing and animal feed, the net power generation and emission reduction are about 8,216 GWh and 7.32 million metric tons, respectively. If additional 30% of recycled wastes are assumed to be utilized in their past use, the power generation, profit, and emission reduction will further decrease to 5,750 GWh, $697 million, and 5.12 metric tons, respectively. The results point out that the utilization of recycled wastes can effectively reduce the reliance on fossil fuels, improve energy security, and increase social welfare. Insights of the results and policy implications are also discussed in detail.

scholarly journals How Do Women Overcome Gender Inequality by Forming Small-Scale Cooperatives? The Case of the Agricultural Sector in Uganda

2021 ◽  
Vol 13 (4) ◽  
pp. 1797
Author(s):  
Amber Theeuwen ◽  
Valérie Duplat ◽  
Christopher Wickert ◽  
Brian Tjemkes
Keyword(s):  
Developing Countries ◽  
Gender Equality ◽  
Gender Inequality ◽  
Family Business ◽  
Agricultural Sector ◽  
Economic Benefits ◽  
Policy Implications ◽  
Small Scale ◽  
Business Relationships ◽  
Female Farmers

In Uganda, the agricultural sector contributes substantially to gross domestic product. Although the involvement of Ugandan women in this sector is extensive, female farmers face significant obstacles, caused by gendering that impedes their ability to expand their family business and to generate incomes. Gender refers to social or cultural categories by which women–men relationships are conceived. In this study, we aim to investigate how gendering influences the development of business relationships in the Ugandan agricultural sector. To do so, we employed a qualitative–inductive methodology to collect unique data on the rice and cassava sectors. Our findings reveal at first that, in the agricultural sector in Uganda, inter-organization business relationships (i.e., between non-family actors) are mostly developed by and between men, whereas intra-organization business relationships with family members are mostly developed by women. We learn that gendering impedes women from developing inter-organization business relationships. Impediments for female farmers include their restricted mobility, the lack of trust by men, their limited freedom in communication, household duties, and responsibilities for farming activities up until sales. Our findings also reveal that these impediments to developing inter-organization business relationships prevent female farmers from being empowered and from attainting economic benefits for the family business. In this context, the results of our study show that grouping in small-scale cooperatives offers female farmers an opportunity to overcome gender inequality and to become economically emancipated. Thanks to these cooperatives, women can develop inter-organization relationships with men and other women and gain easier access to financial resources. Small-scale cooperatives can alter gendering in the long run, in favor of more gender equality and less marginalization of women. Our study responds to calls for more research on the informal economy in developing countries and brings further understanding to the effect of gendering in the Ugandan agricultural sector. We propose a theoretical framework with eight propositions bridging gendering, business relationship development, and empowerment and economic benefits. Our framework serves as a springboard for policy implications aimed at fostering gender equality in informal sectors in developing countries.

Bifunctional single-atomic Mn sites for energy-efficient hydrogen production

Nanoscale ◽  
2021 ◽  
Author(s):  
Xianyun Peng ◽  
Junrong Hou ◽  
Yuying Mi ◽  
Jiaqiang Sun ◽  
Gaocan Qi ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Energy Saving ◽  
Hydrogen Evolution Reaction ◽  
Energy Efficient ◽  
Low Cost ◽  
Clean Energy ◽  
H2 Production ◽  
Energy Technology ◽  
Highly Active ◽  
Clean Energy Technology

Electrocatalytic hydrogen evolution reaction (HER) for H2 production is essential for future renewable and clean energy technology. Screening energy-saving, low-cost, and highly active catalysts efficiently, however, is still a grand...

scholarly journals Engineering of TiO2 or ZnO—Graphene Oxide Nanoheterojunctions for Hybrid Solar Cells Devices

Photonics ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 75
Author(s):  
Duarte Carreira ◽  
Paulo A. Ribeiro ◽  
Maria Raposo ◽  
Susana Sério
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Fossil Fuels ◽  
Electrical Characterization ◽  
Modern Society ◽  
Clean Energy ◽  
Zno Films ◽  
Layer By Layer ◽  
Glass Substrates ◽  
Rc Circuit

It is currently of huge importance to find alternatives to fossil fuels to produce clean energy and to ensure the energy demands of modern society. In the present work, two types of hybrid solar cell devices were developed and characterized. The photoactive layers of the hybrid heterojunctions comprise poly (allylamine chloride) (PAH) and graphene oxide (GO) and TiO2 or ZnO films, which were deposited using the layer-by-layer technique and DC-reactive magnetron sputtering, respectively, onto fluorine-doped tin oxide (FTO)-coated glass substrates. Scanning electron microscopy evidenced a homogeneous inorganic layer, the surface morphology of which was dependent on the number of organic bilayers. The electrical characterization pointed out that FTO/(PAH/GO)50/TiO2/Al, FTO/(PAH/GO)30/ZnO/Al, and FTO/(PAH/GO)50/ZnO/Al architectures were the only ones to exhibit a diode behavior, and the last one experienced a decrease in current in a low-humidity environment. The (PAH/GO)20 impedance spectroscopy study further revealed the typical impedance of a parallel RC circuit for a dry environment, whereas in a humid environment, it approached the impedance of a series of three parallel RC circuits, indicating that water and oxygen contribute to other conduction processes. Finally, the achieved devices should be encapsulated to work successfully as solar cells.

scholarly journals Relationships Between Industrialized Agriculture and Environmental Consequences: The Case of Vertical Coordination in Broilers and Hogs

1997 ◽  
Vol 29 (1) ◽  
pp. 45-56 ◽  
Author(s):  
Laura L. Martin ◽  
Kelly D. Zering
Keyword(s):  
Environmental Quality ◽  
Geographic Region ◽  
Policy Implications ◽  
Product Management ◽  
Vertical Coordination ◽  
Pork Industry ◽  
Environmental Consequences ◽  
Historical Perspectives ◽  
The North ◽  
The Relationship

AbstractThis paper examines the relationship between industrialized production in the pork and broiler industries and the natural environment. Historical perspectives are presented regarding the movement toward increasingly concentrated and coordinated pork and broiler production units in the South. The relationships between animal by-product management and environmental quality, both at the farm level and within a geographic region, are addressed. Using the North Carolina pork industry as a background, current regulations and potential policy implications to protect environmental quality are discussed.

scholarly journals Coastal and river flood risk analyses for guiding economically optimal flood adaptation policies: a country-scale study for Mexico

2018 ◽  
Vol 376 (2121) ◽  
pp. 20170329 ◽  
Author(s):  
Toon Haer ◽  
W. J. Wouter Botzen ◽  
Vincent van Roomen ◽  
Harry Connor ◽  
Jorge Zavala-Hidalgo ◽  
...  
Keyword(s):  
Climate Change ◽  
Risk Assessment ◽  
Flood Risk ◽  
Cost Benefit ◽  
Economic Benefits ◽  
Adaptation Strategies ◽  
Policy Implications ◽  
Flood Protection ◽  
Local Data ◽  
Flood Adaptation

Many countries around the world face increasing impacts from flooding due to socio-economic development in flood-prone areas, which may be enhanced in intensity and frequency as a result of climate change. With increasing flood risk, it is becoming more important to be able to assess the costs and benefits of adaptation strategies. To guide the design of such strategies, policy makers need tools to prioritize where adaptation is needed and how much adaptation funds are required. In this country-scale study, we show how flood risk analyses can be used in cost–benefit analyses to prioritize investments in flood adaptation strategies in Mexico under future climate scenarios. Moreover, given the often limited availability of detailed local data for such analyses, we show how state-of-the-art global data and flood risk assessment models can be applied for a detailed assessment of optimal flood-protection strategies. Our results show that especially states along the Gulf of Mexico have considerable economic benefits from investments in adaptation that limit risks from both river and coastal floods, and that increased flood-protection standards are economically beneficial for many Mexican states. We discuss the sensitivity of our results to modelling uncertainties, the transferability of our modelling approach and policy implications. This article is part of the theme issue ‘Advances in risk assessment for climate change adaptation policy’.

Integrated Management of Solid Wastes for New York City

2002 ◽  
Author(s):  
Nickolas J. Themelis
Keyword(s):  
New York ◽  
New York City ◽  
York City ◽  
Power Plants ◽  
Integrated Management ◽  
Solid Wastes ◽  
Waste To Energy ◽  
Advanced Technology ◽  
Municipal Solid Wastes ◽  
Energy Plant

This report presents the results of a study that examined alternatives to landfilling the municipal solid wastes (MSW) of New York City. Detailed characterization of the wastes led to their classification, according to materials properties and inherent value, to “recyclable”, “compostable”, “combustible”, and “landfillable”. The results showed that the present rates of recycling (16.6%) and combustion (12.4%) in New York City can be increased by a) implementing an automated, modern Materials Recovery Facility (MRF) that separates the blue bag stream to “recyclables” and “combustibles”, and b) combusting the non-recyclable materials in a Waste-to-Energy (WTE) facility. Combustion of wastes to produce electricity is environmentally much preferable to landfilling. An advanced technology for combustion is that used in a modern Waste-to-Energy plant (SEMASS, Massachusetts) that processes 0.9 million metric tons of MSW per year, generates a net of 610 kWh per metric ton of MSW, recovers ferrous and non-ferrous metals, and has lower emissions than many coal-fired power plants.

Re-imagine Pickering here: a vision for Pickering Nuclear Park

2021 ◽  
Author(s):  
Taylor Alicia Lena Marquis
Keyword(s):  
Power Generation ◽  
Life Cycle ◽  
Ecological Restoration ◽  
Clean Energy ◽  
Industrial Site ◽  
Energy Technology ◽  
The Future ◽  
Clean Energy Technology ◽  
Restoration Practices ◽  
Post Industrial

In 2024, all commercial operations at the Pickering Nuclear Generation Station cease and the station will begin its decommissioning process. Ontario Power Generation is currently looking developing a repurposing strategy for the site throughout the decommissioning process, which is expected to be complete by 2064. This project presents a unique opportunity to re-imagine the future of this site, while setting a precedent for the reuse of nuclear sites and facilities once they have reached the end of their life cycle – an issue that will be more prevalent in the coming years. This project proposes a vision for the site to be transformed into parkland using ecological restoration practices, and establishing a Centre for Clean Energy Technology. Using design as a form of research, the project was informed by background research that included a review of existing literature on post-industrial site redevelopment, precedent studies, and site reconnaissance.

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