Waste Management Costs Research Articles

Financial Impact of Adopting Circular Economy Practices in Waste Management at a University Hospital in Curitiba

Objective: To investigate the financial impact of CE practices on HCW management at CHC-UFPR, from 2017 to 2022. Theoretical Framework: Concepts and theories on CE and MSW, sustainable practices in the hospital area are addressed, in order to allow an understanding of the financial, environmental and social implications of these practices in the management of MSW. Method: A descriptive case study with a qualitative and quantitative approach. Secondary data from the PGRSS, from 2017 to 2022, versions 2018 and 2022. Survey of the quantification of RSS generated, cost, and the annual recycling rate. Results and Discussion: From 2017 to 2022, the generation of HSW at CHC-UFPR increased from 570,074.69 kg to 731,627.51 kg, influenced by the COVID-19 pandemic. Group D, managed at approximately R$0.78 per kilo in 2022, would have seen its costs increase by 21.65% without the segregation of recyclables. Recycling grew from 62.16 tons (2017) to 87.32 tons (2022), maintaining a recycling rate above 10%, reaching 17.20% in 2019. In 2021, the total cost of waste management was the highest, reflecting the increase in waste during the pandemic. Research Implications: Contributes to the understanding of the financial and environmental benefits of adopting sustainable practices in the management of HSW in the hospital environment. Originality/Value:The study can contribute to sustainability practices, especially recycling, in the hospital environment.

Waste-to-energy: exploring the roadmap for energy generation from commercial waste in South Africa

Purpose This study aims to investigate the adoption of waste-to-energy (WtE) technologies in South Africa (SA), focusing on identifying the key drivers, barriers and potential solutions for commercial uptake. The ultimate aim is to propose an implementation framework that promotes renewable energy while reducing landfill reliance. Design/methodology/approach A systematic literature review (SLR) of papers published between 2020 and 2023 was conducted to identify factors impacting WtE adoption in SA. The conceptual model developed from the SLR was tested using a qualitative case study approach. Data was collected through 15 semi-structured interviews with commercial entities and WtE experts from four regions of SA. Findings Anaerobic digestion and pyrolysis are identified as the most suitable waste-to-energy technologies in the South African context. Among the financial challenges of WtE in SA, the availability of cheap coal, low landfill tariffs, high capital costs, funding constraints and regressive economic incentives are critical. The lack of government support, insufficient incentives, regulatory burdens, weak policies and limited innovation capacity are considerable non-financial barriers hindering WtE technologies’ growth. The successful adoption of renewable energy also requires adequate infrastructure, increased sustainability awareness and technical expertise. Research limitations/implications Although the sample size is diverse and consists of a range of organisations, it may not capture the thoughts and experiences of other SA businesses in their entirety. It is important to note that the lack of existing research on the implementation, benefits and impacts of WtE technologies limits the authors’ ability to interpret and benchmark the findings of this study. Yet, this study contributes by developing an implementation framework to encourage WtE adoption, recommending policy actions such as regressive taxation on fossil fuels and landfills and promoting renewable energy through subsidies, awareness and energy credits. Practical implications This study provides a practical framework for businesses and policymakers to adopt WtE technologies by addressing key barriers. The research suggests that businesses could reduce waste management costs and generate new revenue streams by adopting anaerobic digestion and pyrolysis. Policymakers are encouraged to disincentivize landfills and promote WtE through financial incentives such as subsidies and energy credits. The implementation framework offers clear recommendations for integrating WtE into SA’s energy and waste management strategies, supporting both sustainability and economic goals. Social implications The main social contribution is the potential for WtE adoption to improve waste management practices and generate new job opportunities within the renewable energy and waste sectors. Originality/value This study provides a novel contribution by developing an implementation framework tailored to SA’s unique regulatory, economic and social contexts. The research highlights the importance of aligning WtE adoption with sustainability goals, reducing reliance on fossil fuels and promoting renewable energy. The framework serves as a practical guide for policymakers, businesses and industry leaders seeking to implement sustainable waste management solutions in SA.

Study of the economic consequences and phthalate emission caused by centralized and decentralized patterns of infectious waste management

The development of health services of hospitals in developing countries has led to a significant increase in the production of infectious waste, which has important economic and environmental consequences. Therefore, reducing pollutant leakage caused by disinfection and reducing infectious waste management costs are important in achieving sustainable development goals in hospital management. In this study, the centralized and decentralized patterns of infectious waste management were studied in three hospitals in Behbahan, Iran. Economic analysis was done based on the financial model. Phthalate emission from disinfection equipment was measured for investigating the level of exposure to the pollutant in the studied patterns. The results showed that the cost of waste transportation for studied hospitals in the centralized patterns increased by 12.1%. However, reductions in disinfection and transfer costs up to 32.4% were available by increasing the segregation ratio of infectious waste. The average emission of phthalates from disinfection equipment in the studied hospitals was 0.260 ng/kg. But emission of phthalate types was not the same, so that the emission of BEHP, IBP, and DBP was 35.97, 4.90, and 1.55 μg/m3, respectively. Considering the hospital waste reduction plan and increasing the segregation ratio to reduce the costs of the hospital led to economic justification of the centralized pattern of infectious waste management as a safe option.

Recycling packaging waste from residual waste reduces greenhouse gas emissions

Recycling packaging waste from residual waste can help alleviate resource pressure. However, its environmental and economic benefits remain uncertain, which hinders the widespread application of packaging waste recycling. This study assessed the greenhouse gas (GHG) emissions, environmental impacts, and external costs of a government-recommended technology for recycling packaging waste by applying Life Cycle Assessment (LCA) and ChintaxRCP model. The results showed that packaging waste recycling reduced GHG emissions by an average of 348.1 kg CO2-eq/t residual waste, and external costs by 376.7 €/t residual waste, due to the decrease in incineration. If all packaging waste in residual waste is recycled, over 60% of the total GHG emissions and about 80% of the external costs of residual waste management can be avoided. Moreover, sensitivity analysis indicated that the content of paper and plastic had a significant impact on the environmental impacts of residual waste management. This study demonstrates that recycling packaging waste instead of incineration can bring environmental and economic benefits in the long run. The study provides quantitative evidence to support policies for waste management and increases confidence in the utilization of low-value recyclables for the government.

A socio-economic assessment of an emerging technology in the mining industry

Abstract Purpose This article provides methodological insights to evaluate the socio-economic risk of an emerging froth flotation technology for the mining sector with the goal of guiding the design and development process. This technology is used to separate valuable particles based on surface properties among minerals and, if properly developed, could be used to valorize fine particles that currently existing technology cannot separate and thus become waste material. Methods The Social Hotspot assessment utilized the Product Social Impact Life Cycle Assessment (PSILCA) database to analyze social hotspots in the relevant industrial sector. In addition, a survey captured the viewpoints of technology developers regarding additional potential social risk and opportunities. The final results were defined by combining these two analyses, conducted according to the 2020 UNEP guidelines for Social Life Cycle Assessment of Products and Organizations. For the economic assessment, the Material Flow Cost Accounting (MFCA) methodology (ISO14051) was applied, considering material costs, system costs, energy costs, and waste management costs for both the current situation and a future industrial-scale scenario. Results and discussion The study emphasizes the importance of tailoring methodological approaches for case studies involving low Technology Readiness Level (TRL) technologies based on available data. The state of technology development has led to different results for the economic and social analyses, primarily due to the difficulty in accurately predicting potential social impacts at this stage. The social analysis identified potential risks and 28 subcategories of impacts across different stakeholder categories. The economic assessment found that energy costs (49%) were the highest contributor to the MFCA cost of the future scenario, followed by system costs (29%). Conclusions and recommendations The study concludes that conducting a socio-economic analysis during the developmental stage of a technology is valuable for identifying critical hotspots that require monitoring, effectively guiding the research and development phase. This application represents a unique case in the mining sector and could be a first step in defining a methodological approach suitable for low TRL technologies. Analyzing both social and economic risks provides a more comprehensive perspective on sustainability, complementing environmental risk assessments.

Environmental Cost Disclosure and Financial Performance of Oil and Gas Firms

General Background: The relationship between environmental cost disclosure and financial performance is essential in environmentally impactful sectors like oil and gas. Specific Background: This study focuses on listed oil and gas firms in Nigeria, examining health and safety costs and waste management costs as predictors of return on assets (ROA). Knowledge Gap: Existing research shows inconsistent findings on the effects of environmental disclosures on financial performance, necessitating further investigation. Aims: This study aims to clarify the impact of environmental cost disclosures on financial performance, particularly through health and safety and waste management costs. Results: Using ex-post-facto research design and secondary data analysis, the findings reveal a significant positive relationship between environmental cost disclosures and financial performance, highlighting the importance of these costs on ROA. Novelty: By applying legitimacy theory and focusing on specific environmental costs, this research fills a gap in Nigerian literature. Implications: The study recommends enhanced environmental policies for oil and gas firms, promoting accountability and aligning financial performance with ecological responsibilities. Highlights: Significant positive relationship exists between environmental cost disclosures and financial performance (ROA) in Nigerian oil and gas firms. Health and safety costs and waste management costs are critical predictors of financial performance. The study emphasizes the need for enhanced environmental policies and corporate accountability in the oil and gas sector. Keywords: Health, Safety Cost, Waste Management Cost, ROA

Environmental Management Strategies for Cost-Effective Waste Management in Hospitals

General background: Waste management in hospitals is crucial due to its environmental impact. Specific background: RSU Al Islam HM Mawardi Krian struggles with waste management while adhering to PSAP No. 1 of 2010 and maintaining efficiency. Knowledge gap: Limited research exists on applying environmental management accounting and operational strategies for hospital waste management in line with accounting standards. Aims: This study analyzes the impact of environmental management accounting and strategies on waste management costs at RSU Al Islam HM Mawardi Krian, assessing compliance with PSAP standards. Results: The hospital has implemented processes of identification, recognition, measurement, recording, presentation, and disclosure per PSAP No. 1 of 2010, managing waste effectively and incurring environmental costs. Novelty: Offers insights into aligning hospital environmental cost management with government standards. Implications: Structured environmental accounting and strategies can enhance waste management, improve hospital reputation, ensure regulatory compliance, and potentially increase revenue. Highlights: RSU Al Islam HM Mawardi complies with PSAP No. 1 of 2010 in managing waste costs. Proper environmental accounting improves transparency and operational efficiency. Structured strategies can boost hospital reputation and revenue. Keywords: Environmental Management Accounting, Operational Strategies, Waste Management Costs, Hospital Compliance

Analisis Penerapan Akuntansi Lingkungan Terhadap Pengendalian Biaya Operasional Pengelolaan Limbah pada Rumah Sakit Karya Husada

This research aims to find out how environmental accounting is applied to control operational costs for waste management at Karya Husada Hospital. This research was conducted using qualitative methods. Data sources use primary data and secondary data. The data analysis technique used is descriptive qualitative using the Miles and Huberman model. The results of this research show that Karya Husada Hospital has managed its waste well, this is proven by the absence of problems or complaints from the surrounding community regarding waste at the hospital. Karya Husada Hospital has implemented environmental accounting and carried out the process of Recognizing, Measuring, Recording, Presenting, and also Disclosure of environmental related costs. Karya Husada Hospital does not have a specific environmental cost report. Controlling operational costs for waste management at Karya Husada Hospital has not been effective, where there has been a deviation from realized costs exceeding previously budgeted costs. This deviation occurred because the amount of medical and domestic waste increased along with the increase in patient and family visits at Karya Husada Hospital.

Safety assessment of introducing radioactive waste incineration facilities in Korea: An off-site resident dose evaluation

As nuclear power technology advances, radioactive waste accumulation rises, necessitating measures to alleviate strain on disposal facilities and minimize waste management costs. Analysis of radioactive waste composition revealed that combustible waste comprised the largest proportion (45 %), with incineration demonstrating high reduction efficiency for this fraction. In order for a radioactive waste incineration facility to be introduced, it is necessary to evaluate the safety of gas radioactive effluent generated during city operation. Evaluation criteria have already been established and methodologies also exist, but these results greatly depend on the area where the incineration facilities are located, the waste to be treated, the operation method of the facilities. Accordingly, this study assumed annual throughput and radionuclide concentrations based on the radioactive waste stored and generated in Korea. The centralized operation method at a specific site was compared with the decentralized operation method employed at all sites. Post-incineration, the impact of radionuclides released from the facilities was analyzed against Nuclear Safety and Security Commission standards, confirming the discharge standards and doses for single facilities and entire sites.

Optimization of municipal solid waste management system in landfill using response surface methodology - a case study of Ogbomoso South Local Government

In this study, Solid waste generation and collection assessment within the study area was undertaken with the view of formulating an optimization model that helped identify the important variables influencing the overall cost of solid waste management and also determine their optimum values. Some of the important variables used in formulating the model include; The number of solid waste collection trips (X1), Number of manpower (Persons) (X2), Fuel consumption per day (X3), Weight of solid waste collection per trip (X4). To determine the model, Statistical design of experiment (DOE) using central composite design method (CCD) was employed. The number of experimental runs based on the CCD method was determined and thirty (30) experimental runs were thereafter generated and optimized. Result of the optimization model revealed that; the number of solid waste collection trips per month (X1 = 47), Number of manpower (persons) (X2 = 3), Fuel consumption per day (X3 = 18.20liters) and Weight of solid waste collection per trip (X4 = 6.33tons). The optimal solution of selected variables produced an overall cost of N162,300. The solution was selected by the Design Expert software with a desirability value of 1 that is 100% reliability.

Urban scavenging: vertebrates display greater sensitivity to land-cover and garden vegetation cover than invertebrates

Scavenging removes carrion or littered food waste from the environment, promoting nutrient cycling, and reducing waste management costs. These ecosystem services are important in urban environments, where high human population densities result in increased littered food waste. It is unclear how the magnitude of scavenging across urban-rural gradients is influenced by agent, land-cover type, and patch size. We investigated scavenging provision by vertebrates and invertebrates across a gradient of urbanisation, based on impervious surface cover, in woodlands and gardens in Liverpool, UK. The percentage dry weight loss of bait after 48 h, deployed within vertebrate exclusion cages or exposed to vertebrates and invertebrates, was used to quantify scavenging provision. General linear mixed effects models were used to assess the relative contributions of vertebrates and invertebrates across an urban-rural gradient, variation in scavenging between woodlands and gardens, and the effects of semi-natural vegetation cover on scavenging in gardens. We consider patch size as a preliminary assessment of how fragmentation influences scavenging. Vertebrates contributed substantially more to scavenging than invertebrates across the urbanisation gradient. Vertebrate scavenging was greater in woodlands than gardens, while invertebrate scavenging remained consistent. Scavenging increased with patch size in gardens, but not woodlands. Vertebrate scavenging increased with patch size and garden semi-natural vegetation cover. Urban woodlands and gardens make important contributions to scavenging-mediated ecosystem services. There is a need to increase the cover of semi-natural vegetation in gardens to increase their contributions, and protect and expand woodlands, especially in areas with a high demand for scavenging-mediated ecosystem services.

FEASIBILITY ANALYSIS OF ORGANIC WASTE MANAGEMENT PROGRAM AT IPB UNIVERSITY, INDONESIA

More than half of the waste produced at IPB University is organic waste and is routinely generated every day. The waste could have economic value if it has proper management. On the other hand, waste management costs money for investment and operation. Therefore, a proper project plan is needed so the management can generate profits. This research aims to (1) estimate the potential of organic waste from IPB University that can be used optimally to produce economic value and (2) analyze the economic feasibility of organic waste at IPB University. The result of this research shows that the number of potential organic waste from IPB University that can give economic value is 506,496 kg each year. Economic value and feasibility were analyzed using three criteria, which are Net Present Value (NPV), Internal Rate of Return (IRR), and Net Benefit Cost Ratio (Net B/C). In economic analysis with a project life cycle of 20 years, the organic waste management obtained an NPV value of 915,056,415 rupiahs, 1.29 for Net B/C, and 10.35% for IRR. In financial analysis with a project life cycle of 20 years, the organic waste management obtained NPV value by -695,114,013 rupiahs, 0.78 for Net B/C, and 0.12%for IRR. Based on the description above, it can be concluded that the project IPB campus organic waste management is economically feasible but not feasible financially.

Analysis of The Implementation of Environmental Costs Case Study at Banjarmasin Islamic Hospital

This study aims to uncover waste management activities and environmental costs of environmental cost reporting at the Islamic Hospital of Banjarmasin. This researcher uses a qualitative paradigm with a case study design. The research scope is the Unit of Environmental Health Sanitation with the accounting process of environmental management, hospital waste management's data focus, and expenditures for waste costs. Primary data were collected through in-depth interviews and observations; secondary data, through documentation. The results revealed that environmental management accounting systems in 2019 and 2020 found hidden environmental costs from waste management cost reports in the Financial Statements. For example, the environmental cost report applied to the SKL Unit revealed Rp. 677,646,500 and Rp. 459,521,600 not presented as an environmental cost in 2019 and 2020. The implementation of environmental cost accounting through environmental cost reporting at the Islamic Hospital of Banjarmasin revealed that special reports in environmental management accounting could be used as information by the management of the Islamic Hospital of Banjarmasin in planning and controlling environmental responsibility activities. The study results also revealed that the environmental cost report facilitated the direction of the Islamic Hospital of Banjarmasin in making decisions related to environmental costs and provided information for stakeholders that the hospital had been responsible for maintaining environmental health.

Multi-Objective Sensitivity Analysis of a Wind Turbine Equipped with a Pumped Hydro Storage System Using a Reversible Hydraulic Machine

A typical wind system captures wind energy and converts it into electricity, which is then converted to DC for battery storage using an AC/DC converter; an inverter then supplies AC electricity at the grid frequency. However, this solution involves losses in electronic components and incurs costs and environmental impacts associated with battery storage. To address these issues, a different wind system layout configuration is considered, where the energy storage duties are assumed by a hydro storage system employing a reversible hydraulic pump (referred to as a Pump as Turbine). This solution utilises an elevated reservoir connected to the Pump as Turbine to compensate for fluctuations in wind and load; this approach offers lower costs, a longer lifespan, reduced maintenance, and a smaller waste management cost. This study focuses on a comprehensive sensitivity analysis of the new wind system power layout, considering multiple objectives. Specifically, the analysis targets the net change in the mass of water (potential energy) stored in the pumped hydro system, the captured wind energy, and the torque provided in hydraulic turbine mode. On the other hand, the design variables are represented by the Pump as Turbine-specific speed, the hydraulic system gearbox ratio, and the pump head. To assess how solutions are affected by random changes in wind speed and external load, the sensitivity analysis considers the multi-objective optimisation problem showing for both the wind speed and the external load a stochastic contribution.

Plastic waste management in urban areas: Key takeaways from the “Send Plastic Home” project in Bangkok, Thailand

This study evaluates the plastic waste recycling program, named “Send Plastic Home,” tailored for urban areas in Thailand. Thirteen strategically located plastic drop-off points were implemented, and their effectiveness was assessed using the Productivity Index (PI). In-depth interviews and group discussions were conducted to identify key stakeholders and estimate the Social Return on Investment (SROI) associated with the project. Moreover, the environmental impacts of various plastic waste management scenarios were investigated and compared. To improve the PI of drop-off points, pass-through points for smaller amounts of plastic and drive-through points for bulk returns are recommended. Increasing drop-off points in highly populated areas, coupled with effective multi-channel public relations, would be beneficial. The current plastic waste management approach, combining recycling and waste-to-energy methods, yields commendable environmental benefits, particularly in mitigating marine aquatic ecotoxicity. With a collected plastic waste volume of 22,135 kg, greenhouse gas emissions and waste management costs are minimized by 27 tonCO2eq and 1803 USD, respectively. The program operates effectively, as evidenced by an impressive SROI ratio of 8.45. These findings provide a data-driven foundation and actionable insights for the design and implementation of more efficient plastic waste collection infrastructures in urban environments, aligning with the circular economy concept.

A Comprehensive Review on the Antioxidant and Anti-Inflammatory Bioactives of Kiwi and Its By-Products for Functional Foods and Cosmetics with Health-Promoting Properties

Kiwi’s increased popularity as a healthy fruit with several agro-food applications has increased the amount of bio-waste produced like leaf, peel, and seed by-products, usually combined to form a kiwi pomace, which increases the environmental footprint of kiwi fruit and waste management costs. The aim of the present study is to thoroughly review and outline the nutritional content and bioactive components of both kiwi fruit and its by-products, as well as the innovative approaches to obtain and valorize kiwi’s bioactives, phytochemicals, vitamins, and nutrients in several functional food products, nutraceuticals, and cosmetics applications with health-promoting properties. The antioxidant and anti-inflammatory properties and mechanisms of action of the extracted polyphenols, flavonoids, flavones, organic acids, and other bioactive components in both the fruit and in its functional products are also elucidated. Emphasis is given to those bioactive ingredients and extracts from kiwi by-products that can be valorized in various functional foods, supplements, nutraceuticals, nutricosmetics, cosmeceuticals, and cosmetics-related applications, with antioxidant and anti-inflammatory health-promoting properties. Characteristic examples with reported health benefits are the functional kiwi fruit jelly (FKJ),fermented kiwi fruit products like wine, starchy kiwi fruit flour (SKF), and kiwi-derived functional protein bars, cheese and flour, as well as several nutraceuticals and functional cosmetics with kiwi bioactives improving their antioxidant, antiaging, and photoprotective properties, collagen synthesis, skin density, hydration, elasticity, and the wound healing process, while beneficially reducing skin roughness, wrinkles, hyperpigmentation, keratinocyte death, and DNA and cell damage. The limitations and future perspectives for these kiwi bioactive-based applications are also discussed.

Avocado and Its By-Products as Natural Sources of Valuable Anti-Inflammatory and Antioxidant Bioactives for Functional Foods and Cosmetics with Health-Promoting Properties

Avocado (Persea americana) is a unique fruit with exceptional nutritional and technological characteristics, as well as proposed health benefits. Moreover, the commercial utilization of avocado to make guacamole and/or to extract its oil for several applications generates massive amounts of avocado bio-wastes, including peels and seeds by-products, which further impact the environment and waste management costs. Within this article, the proposed health benefits of moderate avocado consumption, as a functional component of a balanced diet against inflammation-related chronic disorders, and its potential applications are fully addressed. The numerous bioactive compounds present in avocado fruit and its by-products, such as its bioactive phenolics, dietary fiber, and lipid bioactives like unsaturated fatty acids and polar lipids, are also thoroughly outlined. The functional anti-inflammatory, antithrombotic, and antioxidant properties of each of these bioactives and avocado extracts, are then thoroughly reviewed. Emphasis is given to these avocado-derived bioactives and extracts that have the potential to be utilized in various industrial applications, such as in functional foods, supplements, nutraceuticals, and cosmetics related health-promoting applications. The limitations and future perspectives of these applications based on avocado bioactives are also discussed.

ANALISIS PENGUNGKAPAN INFORMASI LINGKUNGAN DALAM LAPORAN KEUANGAN PDAM KABUPATEN BONDOWOSO : PERSPEKTIF GREEN ECONOMI DAN TANGGUNGJAWAB SOSIAL PERUSAHAAN

This research aims to analyze the disclosure of environmental information in the financial statements of the Regional Drinking Water Company (PDAM) of Bondowoso Regency, considering the perspectives of green economy and corporate social responsibility. The disclosure of environmental information is increasingly important in the context of environmental protection and business sustainability. A qualitative approach is used to analyze the financial statements of PDAM Bondowoso Regency with a focus on environmental information disclosure elements. Findings from this research are expected to provide new insights into environmental information disclosure practices in the public sector, especially in regional companies such as PDAM. The implications of this analysis can contribute to the development of green economy and corporate social responsibility in Bondowoso Regency and encourage other companies to improve transparency and accountability in disclosing environmental information in the financial statements of PDAM Bondowoso Regency. In conclusion, the management of waste by PDAM Bondowoso Regency still has shortcomings, such as suboptimal waste treatment, gaps in handling various types of waste, technological limitations, and lack of awareness or understanding. The disclosure of environmental information in financial statements is also constrained by factors such as lack of awareness, resource constraints, and regulatory uncertainty. This results in suboptimal disclosure of prevention and detection cost allocations and environmental failure costs. Steps are needed to enhance transparency, such as improvements in disclosing cost allocations and detailed operating costs for waste management. Thus, stakeholders can better understand PDAM's efforts to maintain environmental sustainability and public health

Thermoeconomic optimization with a dissipation cost

Abstract From a finite-time thermodynamics perspective, a thermoeconomic analysis of a Novikov model employing a linear heat transfer law is carried out. A new component in the cost function is proposed to examine its relationship with waste management while operating in the maximum power, ecological, and efficient power regimes. The methodology consists of optimizing the profit function by including our new waste management cost function, leveraging the same method used by DeVos (“Endoreversible thermoeconomics,” Energy Convers. Manage., vol. 36, pp. 1–5, 1995) and Pacheco et al. (“Thermoeconomic optimization of an irreversible novikov plant model under different regimes of performance,” Entropy, vol. 19, p. 118, 2017). Searching for the optimal thermoeconomic efficiencies for the ecological case a novel numerical method developed by the corresponding author (A. M. Ares de Parga-Regalado, “Analytical approximation of optimal thermoeconomic efficiencies for a novikov engine with a Stefan–Boltzmann heat transfer law,” Results Phys., 2023) is used. Analytical expressions for the optimal efficiencies are obtained, and the impact of the proposed term on these values is investigated.

Environmental Accounting and Sustainable Development of Firms in Rivers State, Nigeria

Within the scope of the research, environmental accounting and sustainable development were explored in relation to oil and gas firms located in Rivers State, Nigeria. There was a correlational survey research design used for the investigation. A total of six oil and gas businesses that were active in the Rivers State Region of Nigeria were included in the study's research population. For this particular investigation, secondary data served as the instrument. Statistical Package for the Social Sciences (SPSS) Version 22 was used in order to do the analysis on the data. A simple bivariate regression analysis was performed at a significance level of.05. The research issues were evaluated using the mean and standard deviations, and hypotheses were assessed using the analysis. The data indicated that there is no substantial connection between the cost of waste management and the ecologically sustainable growth of oil and gas businesses in Rivers State, Nigeria. Additionally, there is a strong significant association between the cost of pollution control and the development of ecological sustainability, as well as a strong significant relationship between the cost of pollution control and the development of economic sustainability for oil and gas businesses in Rivers State, Nigeria. By adhering to social responsibility in waste management, oil and gas firms should put a premium value on initiatives that are focused towards reducing their ecological footprint and promoting sustainable growth while also reducing their environmental impact.