Keyword: waste

10 results found.

Technical Note
Uranium Mining Techniques and Waste Management
European Journal of Sustainable Development Research, 2022, 6(4), em0198,
ABSTRACT: In this paper, mining techniques of uranium were investigated. Basically three type of mining techniques are applied. Basic mining techniques are underground mining, open pit or surface mining and in-situ leaching mining methods. Each of them has several advantages and disadvantages to the other. Specifications of each technique was evaluated in this study. Uranium mine wastes present the most significant waste management problem because of their large volume and their radioactivity. Most of the constituents in these radioactive wastes are found naturally in soils and bedrock. During the uranium mining and milling operations, natural radioactive material changes its chemical and physical form so that their potential for mobility is increased. The mobility results leakage to the environment and the public.
Review Article
A Review of the Effects of COVID-19 Pandemic on Solid Waste Management
European Journal of Sustainable Development Research, 2022, 6(4), em0196,
ABSTRACT: Pandemics affect the very existence of human life and their effects going beyond human life to the environment. Natural resources within evolving city milieus require sustainable environmental management. In the COVID-19 pandemic, disposal of face masks in rivers have been witnessed illustrating the implications of COVID-19 on solid waste management and ultimately on the environment. The risks associated and enhanced from improper waste management continues to have adverse impact on water bodies like rivers further aggravating the previous conditions of pollution, which contribute to the effects of climate change. Interestingly, COVID-19 pandemic has had positive environmental effects especially during the lockdowns evidenced by reduced travelling hence reduced global carbon dioxide emissions thereby resulting in improved air quality. However, the pandemic has imposed a further strain on the municipal waste system of many developing economies whose waste management structures and frameworks are still straining from doubled waste generation. As part of the COVID-19 protocol, advisory of wearing face masks was made mandatory for prevention purposes. Unfortunately, a constraint exists in developing protocols towards the management of the used face masks, gloves and PPEs. Increased generation of used face masks and gloves further accelerates indiscriminate dumping of these wastes not only in water bodies but also in dumpsites. Burning of these wastes will lead to increased production of greenhouse gases that have been cited as contributing to climate change. Beyond the COVID-19 pandemic, it is advisable for governments in developing countries to treat waste management as an essential service to avoid future foreseeable and unforeseeable adverse impacts on the environment.
Research Article
Comparative Analysis of the Amount of Biogas Produced by Different Cultures using the Modified Gompertz Model and Logistic Model
European Journal of Sustainable Development Research, 2020, 4(4), em0141,
ABSTRACT: With the increase in population, the amount of food waste generated is increasing exponentially. Anaerobic digestion can serve the purpose of managing organic waste in an eco-friendly way. Microorganisms play a vital role in the process of anaerobic digestion. In this work, the effect of anaerobic digestion was analyzed using two organic cultures- Cow Dung and Horse waste which was in turn compared to an Industrial Culture with regards to the biogas produced over a cycle of 14 days. Between the two organic cultures, the volume of biogas produced by Horse waste was 35,366.03 cm3 which compared to the biogas produced by cow dung was considerably large. The use of Horse waste as potential biomass has the capacity to produce biogas which can be utilized as a biofuel. The experimental data were evaluated using mathematical models like the Modified Gompertz Model, Logistic Model, and First Order Kinetics Model. Of the three models used, Modified Gompertz Model and Logistic Model gave a good fit for the experimental data with 0.98 and 0.97 respectively as the Coefficient of Determination (R2). While the First Order Kinetics Model underperformed with an R2 value of 0.68. The Modified Gompertz gave accurate results which thus validated the experimental data.
Research Article
Effect of Digestate from Methane Fermentation using Ulva sp. and Food Waste for Cultivation of Decolored Pyropia yezoensis (Edible Laver Seaweed)
European Journal of Sustainable Development Research, 2020, 4(4), em0128,
ABSTRACT: Ulva sp. (green seaweed) often proliferates explosively and piles up in shallows. This phenomenon is called “green tide,” caused by increased nutrient flow into an enclosed sea area. Although green tide is one of the environmental problems in coastal areas, Ulva sp. can be regarded as carbon-neutral and therefore can serve as an abundant feedstock for renewable energy. Methane fermentation is one of the suitable techniques for converting such seaweed into energy. Digestate from methane fermentation is normally used as fertilizer; however, it is ends up being treated as wastewater due to limited spaces in urban areas. This paper proposes that the digestate from methane fermentation using mixed biomass (Ulva sp. and food waste) can be applied to the cultivation of Pyropia yezoensis (edible laver seaweed, nori in Japanese), which has recently suffered from decolored phenomena because of decreasing nutrients. The absorption of nutrients and the color recovery of nori were investigated in laboratory-scale experiments based on comparison with artificial seawater. The results highlight that the significant absorption of nutrients and color recovery occurred because of digestate utilization, indicating its positive effects on decolored nori. In addition, the experiments found that not only NH4-N, but also other substances such as trace metal related to Ulva sp. can influence such effects. The findings clearly indicate that digestate can be used in the sea and that the suggested multiple uses of digestate would increase the value of digestate.
Research Article
Research on Transportation of Health-hazardous Waste
European Journal of Sustainable Development Research, 2020, 4(1), em0109,
ABSTRACT: The article provides information on transportation of health-hazardous waste. Transport accidents of hazardous waste are frequent and can cause serious injuries in inhabited areas or pollution to the environment. It is very important to distinguish such waste from the general waste stream and correctly transport and handle it. For qualitative risk assessment and mitigation planning, consequence calculations are necessary. Transportation of the hazardous waste has a major impact on road traffic and safety. Therefore, it is very important to define all elements of the safe system and apply the concept of “green logistics”. The aim of this article is to analyse the peculiarities of health hazards, its transportation characteristics and suggest an algorithm for determining the consignment volume and selecting transportation method in order to prevent damage to the environment and humans and minimize the risks. The scope of article is safe and sustainable transportation of hazardous waste. The article reports the results of the methodology to determine an optimal consignment volume and transportation methods, where the optimality criteria is the general storage and transportation costs is suggested. The algorithm enables to optimally determine an average number of vehicles in accordance with the tonnage of hazardous waste.
Research Article
Chemical Contaminants and Pollutants in the Measurable Life of Dhaka City
European Journal of Sustainable Development Research, 2019, 3(2), em0083,
ABSTRACT: Environmental pollution and food contamination are as old as the civilization itself. It is the result of the improvement of civilization, over usage of nature, industrialization and in certainty a cost for the advancement. It is exceedingly conspicuous in Dhaka city. Air pollution is chiefly because of the vehicle emanation, modern release and consuming of non-renewable energy source. The water asset of Dhaka turns into a noteworthy wellbeing danger because of arsenic contamination, insufficient family unit/modern/restorative waste transfer and mechanical emanating the executives. Food contamination originated from the commercialism of specialists who are doing this purposely to augment benefit. Fundamental advances are to be taken to secure nature for our own reality. This paper uncovers compound pollution and contamination issues of Dhaka city, the capital of Bangladesh. Brief review of chemical induced pollution and contamination, their consequences and control. Healthcare providers/Policy makers have a major role play to the concerned field. Comprehensive literature search followed by consulting healthcare professionals about environmental pollution and food contamination. Hospital, clinic and company personnel, newspaper journalists, NGO workers given their valuable suggestions and asked help for necessary books, journal, newsletters. A few western magazine and newspapers also observed to get the necessary concern. Projections were based on public life pattern, their food habits, pollution and contamination sources, waste disposal features of urban life as well as industry and hospital waste disposals. Pollution and adulteration are the most notorious enemy of mankind. Civilization has its own drawback that even causing destruction of itself. Very few people raised voice on this but crippled by the facts of commercialism. The scope of this article is limited to chemical pollution of air and water, medical or household waste products and food contaminants and adulterants. A few discussions based on real life experience and recent studies or reports from various journals and news articles are summarized here. Both general people and the old system, are responsible for this unlivable condition of Dhaka city. The population is not the sole for this instance. A sense of poor rules and regulation is always found everywhere. Negligence is becoming a wide spread disease contaminating illiterate to well educated, all kind of people. Many articles and documents found in concerned area of research, but the scope of this research is on its focus point chemical hazards and burdens of Dhaka city. Still the most important aspect is covered, but fact is less amount of recent data found in few areas. The language of this article is too simple to understand by people with simple literacy. Pharmacists, doctors, nurses, hospital authorities, public representatives, policy makers and regulatory authorities have to acquire much from this article. Any article or research is based on the think doing good for mankind, at least going ahead from the present situation, overcoming problems and measures. The article should create a guideline for the future policy makers of both government and other sectors to review the alarming situation of chemical pollutions and food contaminants of Dhaka, along with the whole Bangladesh. Again, world business is moving around Asian countries, Bangladesh will be an important business hub within next few decades. This article should remind policy makers that we should not forget mankind, giving places to industrialization and development.
Research Article
Assessment of Electrical Energy from Pyrolysis of Medical Waste in Jessore City, Bangladesh
European Journal of Sustainable Development Research, 2019, 3(2), em0078,
ABSTRACT: Energy crisis and environmental degradation is considered most talked of the topics of modern global development. Medical waste has dangerous impacts on the environment. Besides, load shedding has come to be a great problem in socioeconomic development of Bangladesh for the reason that of the serious electricity crisis. This study also focused on energy recovery potentiality from plastic content of medical waste (PCMW) by converting it into electric energy. This plastic waste integrates an enormous amount of energy and consequently, attention in new renewable sources of energy from these wastes has been augmented, at the present time. Bangladesh as well as Jessore city faces an excessive environmental problem because of improper management of medical waste. This study demonstrated that the medical waste generation rate in Jessore city was found to be approximately 3 ton/day which is about 6.89% of total waste generation in this city throughout the study period. Besides, electric power generation projections from the PCMW were estimated at 74448 kWh per year respectively. This study suggested that appropriate PCMW management policy as well as awareness increasing regarding the management of PCMW is requirement for the development of existing status of living condition.
Research Article
Levels and Risk Assessment of Polychlorinated Biphenyls (PCBS) in Soils from Informal E-Waste Recycling Sites in Cameroun
European Journal of Sustainable Development Research, 2018, 2(4), 44,
ABSTRACT: This study assessed the levels and human health risk of polychlorinated biphenyls (PCBs) in soils of e-waste recycling sites in Douala, Cameroun. Surface soil samples from these sites were collected and analyzed by Gas Chromatography- Electron Capture Detector to quantify the levels of 30 PCBs (including 10 dioxin-like PCBs). The investigated 30 PCBs were detected in all the soil samples. The mean and standard deviation of the total PCBs in Makea, Ngodi and New Bell recycling sites were 32.1±4.48, 31.9±0.10 and 72.8±13.5 ng/g, respectively. Between 26-46% of the Ʃ30 PCB concentrations were comprised of the dioxin-like PCB congeners. The toxic equivalent (TEQ) values of 10 dioxin-like PCBs were lower than the Canadian soil quality guidelines of dioxin (4 pg TEQ g−1). Human health risk through ingestion, dermal contact, and inhalation was lower than the values of cancer risk (10−6) indicating low adverse effects of PCBs in the recycling sites.
Research Article
Medical Waste Management is Vital for Safe Town Development: An Incident Study in Jessore Town, Bangladesh
European Journal of Sustainable Development Research, 2018, 2(3), 36,
ABSTRACT: Health care institutions (HCIs) generate waste which can causes various injuries and infections to the patients, healthcare workers and also causes harm to the surrounding environment. Medical waste management (MWM) is vital for safe town development and the misconduct of medical waste may be a significant risk factor for the infectious diseases diffusion on our environment. The study carried out on 22 HCIs included public hospital, diagnostic centers, private hospitals and clinic in Jessore town of Bangladesh. This present study focused on the existing management structure, generation rate and difficulties of MWM. An inadequate number of HCIs are following the MWM method over their self-management. The findings of this study exposed that around 3 ton of medical waste is produced per day that is about 5.56% of entire waste production in this town. Over on an ordinary 0.98kg/day/bed medical waste that covering 10.89% infectious, 15.82% plastic, 3.46% sharp, 3.87% pathological, 60.94% domestic and 5.52% pharmaceutical waste were generated in this town.
Research Article
Sustainability and the UK Waste Management Industry
European Journal of Sustainable Development Research, 2018, 2(1), 02,
ABSTRACT: The aim of this paper is to offer an exploratory review of the approaches to sustainability within the UK’s waste management industry. The paper begins with brief outlines of the waste management industry in the UK and the growing interest in corporate sustainability. This is followed by a review of the most recent sustainability reports published by the leading waste management companies operating within the UK and the paper concludes by offering some reflections on current approaches to sustainability within the industry. More critically the authors suggest that the selected companies’ commitments to sustainability are couched within existing business models centred on continuing growth and consumption and that current policies might be viewed as little more than genuflections to sustainability. The paper provides an accessible commentary on current approaches to sustainability in the waste management industry within the UK and as such it will interest professionals working in the industry as well as academics and students interested in management and business studies, resource management and sustainability.