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Article ; Online: Public acceptance towards plastic waste-to-energy gasification projects: The role of social trust and health consciousness.

Cudjoe, Dan / Wang, Hong

2024 Volume 356, Page(s) 120737

Abstract: Public acceptance plays an essential role in successfully constructing and operating innovative and evolving technologies that promote ecological sustainability and pollution reduction. The present study investigates the factors influencing public ... ...

Abstract	Public acceptance plays an essential role in successfully constructing and operating innovative and evolving technologies that promote ecological sustainability and pollution reduction. The present study investigates the factors influencing public acceptance of plastic waste-to-energy gasification projects. The research added social trust and health consciousness to the theory of planned behavior. Using the structural equation modeling, 513 valid survey questionnaire responses from the Beijing-Tianjin-Hebei region, China, were analyzed. The most notable results reveal that attitude, social norms, and perceived behavioral control have a major impact on the public acceptability of the initiative. There was no correlation between social trust and public support for the project. Social trust affects public acceptance of the project through attitude. Health consciousness was shown to be favorably connected with public approval of the project both directly and indirectly through attitude. This study serves policymakers and stakeholders with robust policy recommendations to promote public acceptance of plastic waste-to-energy gasification schemes and other hazardous facilities.
MeSH term(s)	Attitude ; China ; Consciousness ; Surveys and Questionnaires ; Trust ; Humans
Language	English
Publishing date	2024-03-26
Publishing country	England
Document type	Journal Article
ZDB-ID	184882-3
ISSN	1095-8630 ; 0301-4797
ISSN (online)	1095-8630
ISSN	0301-4797
DOI	10.1016/j.jenvman.2024.120737
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Article: A novel grey forecasting of greenhouse gas emissions from four industries of China and India

Javed, Saad Ahmed / Cudjoe, Dan

Institution of Chemical Engineers Sustainable Production and Consumption. 2022 Jan., v. 29

2022

Abstract: The increased greenhouse gas concentration in the atmosphere causes climate change. China and India are among the most significant contributors to global greenhouse gas emissions. The current study forecasts the emissions from the countries' four sectors ...

Abstract	The increased greenhouse gas concentration in the atmosphere causes climate change. China and India are among the most significant contributors to global greenhouse gas emissions. The current study forecasts the emissions from the countries' four sectors – Transportation, Building, Waste, and Manufacturing/Construction. By extending the classical discrete grey forecasting model DGM (1, 1), a new data-driven time-series forecasting technique, called DGM (1, 1, α), is proposed and applied to forecast the emissions in these sectors till 2028 with an accuracy of over 95%. The results show that the emissions are generally increasing. However, China continues to show a decline in the emissions from the manufacturing and construction industries. Also, the Posterior-Variance Test is introduced to test whether a given forecasting model is qualified or unqualified for a given problem. The comparative analyses with three forecasting models – DGM (1,1), Even GM (1,1), and Grey Verhulst models –revealed the proposed model's feasibility, flexibility, and accuracy. The study concludes with important recommendations for the policy-makers to develop better emission mitigation policies.
Keywords	climate change ; greenhouse gases ; models ; time series analysis ; transportation ; wastes ; China ; India
Language	English
Dates of publication	2022-01
Size	p. 777-790.
Publishing place	Elsevier Ltd
Document type	Article
ISSN	2352-5509
DOI	10.1016/j.spc.2021.11.017
Database	NAL-Catalogue (AGRICOLA)

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Article: Plasma gasification versus incineration of plastic waste: Energy, economic and environmental analysis

Cudjoe, Dan / Wang, Hong

Fuel processing technology. 2022 Dec. 01, v. 237

2022

Abstract: The rise in plastic waste production and its mismanagement poses huge environmental issues. Thermochemical techniques can minimize the amount of plastic waste discarded in landfills, reduce carbon footprints, increase conversion efficiency, and be cost- ... ...

Abstract	The rise in plastic waste production and its mismanagement poses huge environmental issues. Thermochemical techniques can minimize the amount of plastic waste discarded in landfills, reduce carbon footprints, increase conversion efficiency, and be cost-effective. Studies that compare the economic feasibility and environmental impact of treatment of mixed plastic waste for power generation via thermochemical methods are limited. The present study compares the electricity generation potential, economic feasibility, and environmental performance of plasma gasification and incineration of mixed plastic waste in China. The prominent findings show that plasma gasification's total power generation potential is 4378.6 GWh, while incineration is 491.2 GWh. The economic feasibility analysis shows that both projects are feasible with a positive net present value. Plasma gasification is highly beneficial with a higher net present value ($309.1 million), return on investment (32.1%), internal rate of return (27%), lower payback period (5.3 years), and levelized cost of energy ($0.230/kWh). The environmental assessment indicates that compared to the environmental impact, the environmental benefits of both projects are little. Relative to incineration, the environmental performance of plasma gasification is promising. This paper can give scientific guidance for optimal investment and decision-making on the environmental sustainability of mixed plastic waste treatment.
Keywords	carbon ; cost effectiveness ; decision making ; economic feasibility ; electricity generation ; environmental assessment ; environmental impact ; environmental performance ; fuels ; gasification ; power generation ; waste treatment ; wastes ; China
Language	English
Dates of publication	2022-1201
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	1483666-x
ISSN	0378-3820
ISSN	0378-3820
DOI	10.1016/j.fuproc.2022.107470
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Article ; Online: Assessing the economic and ecological viability of generating electricity from oil derived from pyrolysis of plastic waste in China.

Cudjoe, Dan / Brahim, Taouahria / Zhu, Bangzhu

Waste management (New York, N.Y.)

2023 Volume 168, Page(s) 354–365

Abstract: The increased plastic waste generation worldwide poses ponderous issues for public health and the environment. China is the highest generator of plastic waste around the world. The current treatment process (incineration) of the increased plastic waste ... ...

Abstract	The increased plastic waste generation worldwide poses ponderous issues for public health and the environment. China is the highest generator of plastic waste around the world. The current treatment process (incineration) of the increased plastic waste causes dangerous environmental consequences. Pyrolysis has recently surfaced as an ecologically friendly technique for energy and material recovery from plastic waste. The present study assesses the financial and ecological viability of power production from oil derived from the pyrolysis of mixed plastic wastes in China from 2009 to 2028. The prominent findings show that the amount of plastic waste collected in 2020 (24.16 Mt) increased by 53.19% in 2028.The pyrolysis of mixed plastic wastes during the project period yielded 359.29 Mt oil, which has a power potential of 1,060.86 GWh. The economic analysis indicated the project is viable and profitable with a positive net present value (US$8.80 million) and profitability index (1.26) greater than 1. The project has 10.6 y payback period, US$0.0752/kWh levelized cost of energy, 22.5% return on investment, and 13.0% internal rate of return. The life cycle assessment results show that conversion of mixed plastic waste to pyrolysis oil for electricity generation during the project period has a total global warming potential (GWP) of 1,311.4 kt CO
MeSH term(s)	Pyrolysis ; Plastics ; Incineration ; China
Chemical Substances	Plastics
Language	English
Publishing date	2023-06-19
Publishing country	United States
Document type	Journal Article
ZDB-ID	2001471-5
ISSN	1879-2456 ; 0956-053X
ISSN (online)	1879-2456
ISSN	0956-053X
DOI	10.1016/j.wasman.2023.06.015
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Article: Economic feasibility and environmental impact analysis of landfill gas to energy technology in African urban areas

Cudjoe, Dan / Han, Myat Su

Journal of cleaner production. 2021 Feb. 15, v. 284

2021

Abstract: Landfilling is one of the cheapest methods of municipal solid waste disposal worldwide, especially in developing countries. Disposal of municipal solid waste in landfills produce greenhouse gases, such as methane and carbon dioxide, which, if not managed ...

Abstract	Landfilling is one of the cheapest methods of municipal solid waste disposal worldwide, especially in developing countries. Disposal of municipal solid waste in landfills produce greenhouse gases, such as methane and carbon dioxide, which, if not managed properly, may cause global warming. However, landfill gas could also be a potential source of electricity in areas like Africa, where there is low electricity accessibility. Therefore, this study aims to analyze the economic feasibility and environmental impact of landfill gas to energy project in urban areas of Africa. An economic feasibility analysis was conducted using the net present value and levelized cost of energy methods. Besides, environmental impact analysis was performed using life cycle assessment method. Key findings showed that landfill gas to energy project has positive net present value in all the countries except Sudan, Uganda, Burundi, Tanzania, the Democratic Republic of the Congo, Chad, Guinea, Malawi, and Ethiopia. It was also realized that levelized cost of energy for the project in urban areas of Africa in 2012 was from $0.076/kWh to $0.870/kWh. The environmental impact analysis showed that on the average, landfill gas to electricity project could reduce global warming potential by 72.2%. However, it has been observed that electricity generation from landfill gas could increase acid gas emissions by 8.75%–9.00%. This research will guide investment and decision-making on the environmental sustainability of landfill gas to energy projects in Africa.
Keywords	carbon dioxide ; decision making ; developing countries ; economic feasibility ; electricity ; electricity generation ; environmental impact ; gas emissions ; global warming ; global warming potential ; greenhouse gases ; landfills ; life cycle assessment ; methane ; methodology ; municipal solid waste ; research ; technology ; urban areas ; waste disposal ; Burundi ; Chad ; Democratic Republic of the Congo ; Ethiopia ; Guinea ; Malawi ; Sudan ; Tanzania ; Uganda
Language	English
Dates of publication	2021-0215
Publishing place	Elsevier Ltd
Document type	Article
Note	NAL-light
ISSN	0959-6526
DOI	10.1016/j.jclepro.2020.125437
Database	NAL-Catalogue (AGRICOLA)

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Article: Thermochemical treatment of daily COVID-19 single-use facemask waste: Power generation potential and environmental impact analysis

Cudjoe, Dan / Wang, Hong / zhu, Bangzhu

Energy. 2022 June 15, v. 249

2022

Abstract: The utilization of single-use face masks as the standard PPE to minimize the spread of the COVID-19 pandemic has resulted in increased facemask waste. Improper management of the increased facemask waste has a consequential environmental impact. This ... ...

Abstract	The utilization of single-use face masks as the standard PPE to minimize the spread of the COVID-19 pandemic has resulted in increased facemask waste. Improper management of the increased facemask waste has a consequential environmental impact. This requires swift actions to invest and implement innovative technologies to manage single-use facemask waste. Thermochemical treatment of disposable face masks could minimize COVID-19 plastic waste and produce value-added products. The present study evaluates the power generation potential and environmental impact of treating estimated daily single-use facemask waste in Africa and Asia via incineration. The environmental assessment was expressed as global warming potential and acidification potential. The formulation of the model equations method was used to estimate the power generation potential. The IPCC guidelines for national greenhouse gas inventory methodology and EPA “compilation of air pollutant emissions factors” (AP-42) were used to compute greenhouse and acid gases. The key findings show that the daily single-use facemask waste produced in Asia was 19.12 million kg/day, generating 32.65 million kWh/day of electricity. In Africa, 3.53 million kg/day of single-use facemask waste was produced, generating 6.03 million kWh/day of power. The results also show Asia's total global warming potential was 787,097.6 kt CO₂eq/day, and 145,687.7 kt CO₂eq/day was recorded in Africa. Besides, the total daily acidification potential of the incineration process in Asia was 7,078,904 kg SO₂eq/day, while that in Africa was 1,308,362 kg SO₂eq/day. This study will provide scientific guidance for environmental sustainability for treating single-use facemask waste via incineration technology for power generation.
Keywords	COVID-19 infection ; acidification ; air pollutants ; carbon footprint ; electricity ; energy ; environmental assessment ; environmental impact ; face ; greenhouses ; power generation ; value added ; wastes ; Africa ; Asia
Language	English
Dates of publication	2022-0615
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	2019804-8
ISSN	0360-5442 ; 0360-5442
ISSN (online)	0360-5442
ISSN	0360-5442
DOI	10.1016/j.energy.2022.123707
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Article: Towards the realization of sustainable development goals: Benefits of hydrogen from biogas using food waste in China

Cudjoe, Dan / Zhu, Bangzhu / Wang, Hong

Journal of cleaner production. 2022 Aug. 01, v. 360

2022

Abstract: Food waste is a worldwide issue due to its significant ecological, social, and economic impacts. China's high amount of food waste has resulted in severe environmental implications. Aside from the food waste ecological concerns, China also faces high ... ...

Abstract	Food waste is a worldwide issue due to its significant ecological, social, and economic impacts. China's high amount of food waste has resulted in severe environmental implications. Aside from the food waste ecological concerns, China also faces high energy consumption and demand. The Sustainable development Goals (SDGs) task countries worldwide to design environmental, social, and human development policies. Hydrogen gas from biogas derived from food waste is considered a potential source of clean energy production. The present study assesses how the energy and environmental benefits of hydrogen from biogas using food waste in China could contribute to realizing sustainable development goals. The biogas potential of food waste in 31 provinces of China was obtained using Buswell's equation. The amount of hydrogen from biogas was calculated using the steam reforming process's stoichiometric chemical equations with water-gas shift reaction. Mathematical formulation methods were used to determine the electricity production potential, amount of coal consumption saved and avoided greenhouse gas emissions. The key findings show that a total amount of 221.13 ×109kg of hydrogen was generated in China. The hydrogen generated can produce 10,479.72 GWh of electricity. The electricity generated could contribute 0.13% to the estimated energy needs of China. It was found that a total of 616.27 Mt (2.10% of coal used for power generation during the period) of coal consumption could be avoided. The results indicate that a total of 1159.00 M kg of carbon dioxide, 159.00 M kg of methane, and 238.49 thousand kg of nitrous oxide emissions could be avoided. This study could provide scientific guidance for incorporating hydrogen to electricity plans into the national strategy for realizing SDGs related to solid waste management, clean energy, and climate action in China and other Asian countries.
Keywords	biogas ; carbon dioxide ; clean energy ; climate ; coal ; electricity ; electricity generation ; equations ; food waste ; greenhouse gases ; human development ; hydrogen ; methane ; nitrous oxide ; power generation ; solid wastes ; steam ; stoichiometry ; sustainable development ; waste management
Language	English
Dates of publication	2022-0801
Publishing place	Elsevier Ltd
Document type	Article
ISSN	0959-6526
DOI	10.1016/j.jclepro.2022.132161
Database	NAL-Catalogue (AGRICOLA)

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Article: Thermochemical treatment of daily COVID-19 single-use facemask waste: Power generation potential and environmental impact analysis.

Cudjoe, Dan / Wang, Hong / Zhu, Bangzhu

Energy (Oxford, England)

2022 Volume 249, Page(s) 123707

Abstract	The utilization of single-use face masks as the standard PPE to minimize the spread of the COVID-19 pandemic has resulted in increased facemask waste. Improper management of the increased facemask waste has a consequential environmental impact. This requires swift actions to invest and implement innovative technologies to manage single-use facemask waste. Thermochemical treatment of disposable face masks could minimize COVID-19 plastic waste and produce value-added products. The present study evaluates the power generation potential and environmental impact of treating estimated daily single-use facemask waste in Africa and Asia via incineration. The environmental assessment was expressed as global warming potential and acidification potential. The formulation of the model equations method was used to estimate the power generation potential. The IPCC guidelines for national greenhouse gas inventory methodology and EPA "compilation of air pollutant emissions factors" (AP-42) were used to compute greenhouse and acid gases. The key findings show that the daily single-use facemask waste produced in Asia was 19.12 million kg/day, generating 32.65 million kWh/day of electricity. In Africa, 3.53 million kg/day of single-use facemask waste was produced, generating 6.03 million kWh/day of power. The results also show Asia's total global warming potential was 787,097.6 kt CO
Language	English
Publishing date	2022-03-11
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	2019804-8
ISSN	0360-5442 ; 0360-5442
ISSN (online)	0360-5442
ISSN	0360-5442
DOI	10.1016/j.energy.2022.123707
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Article ; Online: Environmental impact analysis of municipal solid waste incineration in African countries.

Cudjoe, Dan / Acquah, Patience Mensah

Chemosphere

2020 Volume 265, Page(s) 129186

Abstract: Globally, proper management of solid waste has been a massive issue. Incineration is popularly used in waste treatment worldwide due to its ability to minimize waste volume and generate electricity. Despite its advantages, incineration of waste can still ...

Abstract	Globally, proper management of solid waste has been a massive issue. Incineration is popularly used in waste treatment worldwide due to its ability to minimize waste volume and generate electricity. Despite its advantages, incineration of waste can still generate large amounts of flue gas, which can be harmful if not handled properly. Therefore, the present study seeks to examine the environmental consequences of incineration in Africa. The study used the most accurate secondary data on the municipal solid waste incineration in 56 African countries from literature for the analysis. Due to data availability, the years 2012 and 2025 are considered for the study. The environmental analysis was based on global warming, acidification, and dioxin emission potentials. The emission of greenhouse gases from the incineration plant was estimated based on the method from the 2006 Intergovernmental Panel on Climate Change Guidelines for National Greenhouse Gas Inventories. The acid gases and dioxins emissions were evaluated based on the United States Environmental Protection Agency "Compilation of Air Pollutant Emission Factors" (Acidification Potential-42). Key findings show that the global warming potential of Seychelles is expected to decline from 200.10 kton CO
MeSH term(s)	Algeria ; Atlantic Islands ; Egypt ; Environment ; Incineration ; Morocco ; Nigeria ; Refuse Disposal ; Solid Waste/analysis ; South Africa
Chemical Substances	Solid Waste
Language	English
Publishing date	2020-12-02
Publishing country	England
Document type	Journal Article
ZDB-ID	120089-6
ISSN	1879-1298 ; 0045-6535 ; 0366-7111
ISSN (online)	1879-1298
ISSN	0045-6535 ; 0366-7111
DOI	10.1016/j.chemosphere.2020.129186
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Article: Determinants of energy-saving behavior of urban residents: Evidence from Myanmar

Han, Myat Su / Cudjoe, Dan

Energy policy. 2020 May, v. 140

2020

Abstract: Despite the insufficiency of accessible energy along with a steady increase in energy consumption in the least developed countries, there are still limited numbers of studies on residential energy-saving behaviors and its determinants in such countries. ... ...

Abstract	Despite the insufficiency of accessible energy along with a steady increase in energy consumption in the least developed countries, there are still limited numbers of studies on residential energy-saving behaviors and its determinants in such countries. Hence, this study investigates the determinants of urban residents’ energy-saving behaviors in Myanmar. Specifically, this study has attempted to investigate the effects of knowledge about energy issues, degree of concern, perceived energy-saving control, and sense of responsibility on energy-saving behaviors of urban residents in Myanmar. This study is empirically tested via multiple regression, using survey data collected from urban residents of Myanmar (n = 200). Results show that knowledge about energy issues, degree of concern, perceived energy-saving control, and sense of responsibility positively and significantly influence energy-saving behaviors. Among four determinants, the degree of concern has the most significant impact on urban residents’ energy-saving behaviors. Being the first empirical study that has explored the determinants of urban resident’s energy-saving behaviors in Myanmar, this study makes good recommendations for Myanmar policymakers in formulating and implementing energy-saving and environmental protection policies. Furthermore, this study intends to serve as a reference to stakeholders who are involved in enhancing energy-saving behaviors in the least developed countries like Myanmar.
Keywords	data collection ; developing countries ; empirical research ; energy ; energy conservation ; environmental protection ; issues and policy ; regression analysis ; stakeholders ; surveys ; Myanmar
Language	English
Dates of publication	2020-05
Publishing place	Elsevier Ltd
Document type	Article
ISSN	0301-4215
DOI	10.1016/j.enpol.2020.111405
Database	NAL-Catalogue (AGRICOLA)

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