Principles Of Waste Management Research Articles

Preparation of Crust Type Dust Suppression Gel Based on Plant Extraction Technology for Ginkgo biloba Leaves: Characterization, Properties, and Function Mechanism

The coal industry plays an essential role in China’s economic development, and issues such as occupational health and environmental pollution caused by coal dust have attracted a great deal of attention. In accordance with the principles of environmental protection and waste management, this study used carboxymethyl ginkgo cellulose (CL) extracted and modified from Ginkgo biloba leaves as a matrix, and a graft copolymerized with sodium 3-allyloxy-1-hydroxy-1-propanesulfonate (AHPS) and N-isopropylacrylamide (NIPAM) monomers to prepare low-cost, environmentally friendly, and high-performance coal dust suppression (C-A-N). By optimizing fitting experimental data through three factors and two response surface analyses, the optimal dust suppression efficiency ratio was determined to be 4:8:5, and its swelling and water retention properties were analyzed. The microstructure, chemical reaction process, combustion performance and crusting property of the dust suppression gel were analyzed using Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetry (TG), scanning electron microscopy (SEM), cone calorimetry, and consolidation layer strength tests. Relevant experiments show that the dust suppression gel prepared in this study has the characteristics of a strong wettability and minor impacts on the calorific value of coal, as well as green and environmental protection. When the wind speed is 10 m/s, the dust suppression effect reaches 93%, and the hardness of the solidified layer reaches 39.6 KPa. This study analyzed the migration and combination of functional groups in the interaction system using molecular dynamics simulation software. The microscopic effect and mechanism between dust suppression gel and coal are revealed from a molecular point of view. The feasibility and accuracy of the molecular dynamics simulation were verified by the consistency between simulation results and experimental data. Therefore, combining the utilization of waste resources with dust suppression can have important economic and social benefits.

Analysis of the Effect of Sustainable Business Practices on the Financial Performance of Manufacturing Companies in Jakarta: Case Study on Renewable Energy Use, Waste Management, and Environmental Economic Principles

The adoption of renewable energy, waste management methods' efficacy, the application of environmental economic concepts, and the financial performance of manufacturing enterprises in Jakarta are all examined in this study. This study examined measurement models and structural models by analyzing data from 174 organizations using Structural Equation Modeling-Partial Least Squares (SEM-PLS). The findings demonstrate that the company's profitability is considerably and favorably impacted by the use of environmental economic concepts and the deployment of renewable energy. This research highlights the significance of sustainable practices in attaining financial prosperity and provides useful guidance for companies seeking to manage the intricate terrain of ecological accountability and financial efficacy.

Tools for the Involvement of Construction and Demolition Waste in the Repeated Production Cycle

Purpose. This paper aims to analyze and classify construction and demolition waste. It is necessary that this classification not only reflects statistical data on waste generation, but also serves as an information basis for the integrated waste management system (IWMS). The main task of this system is to maximize the involvement of waste in economic recycling and to objectively reflect the technological capabilities of its processing. This is extremely important in the context of the implementation of European waste management principles and the implementation of the National Waste Management Strategy in Ukraine until 2030. Methodology. The article considers the problems of construction waste management within the framework of the National Waste Management Strategy in Ukraine until 2030, which provides for the implementation of measures and principles of waste management, including construction waste. The author analyzes the management problems in the field of construction and demolition waste, which substantiates the need to classify construction waste with the simultaneous harmonization of processing methods and technologies. Construction activities are inextricably linked to the management of various types of resources, among which secondary materials play a key role in the implementation of construction processes. The ability to effectively manage the flows of these secondary resources is critical to ensuring the sustainability and efficiency of construction production. In this context, the study of the importance of managing the flows of secondary resources becomes an integral part of strategies for optimizing construction processes. Findings. Construction waste from the demolition of buildings and structures is unique due to its size and the need to prepare it for primary crushing. This is especially true in the context of implementing the concept of renovation of the outdated housing stock. Various static and dynamic methods of destruction of building materials, in particular, impact and vibration, have been investigated, with dynamic methods being characterized by lower energy consumption. Originality. The work reflects the formation of theoretical and methodological directions based on the use of recycled materials in construction, as well as a comparative characterization of various methods of destruction of building materials. Practical value. The possibilities of recycling construction waste, in particular, their maximum involvement in recycling, which meets the goals of the Strategy of Ukraine, provides 50% of waste recycling.

MAIN ASPECTS OF THE IMPLEMENTATION OF THE LAW ON WASTE MANAGEMENT IN EUROPEAN LEGISLATION

The article discusses the main aspects of the implementation of the Law of Ukraine «On Waste Management» adopted on July 9, 2023, which launches waste management reform and approximates Ukrainian legislation to EU legislation. A list of key innovations of this law is provided. The introduction and application of the List of Waste and the Procedure for Waste classification adopted by this law are analyzed. A list of normative legal acts aimed at implementing the provisions of the framework Law «OnWaste Management» is provided. The article provides examples of the hierarchy of the structure of global waste and the classification-identification of waste management in some countries of the world and Ukraine. The Law of Ukraine "On Waste Management" brings our legislation closer to the EU legislation, and also initiates the reform of waste management. The Framework Law "On Waste Management" implements the basic principles of waste management into our legislation in the context of the European integration movement of Ukraine, but it cannot solve all urgent issues at the same time.

Immobilization mechanisms of heavy metals by utilizing natural cow bone waste for municipal solid waste incineration fly ash treatment.

Municipal solid waste incinerator (MSWI) fly ash poses intricate compositional challenges and potential environmental hazards. Effective management of such hazardous waste is imperative to mitigate the release of toxic compounds into the environment. Solidification/stabilization (S/S) processes have emerged as a viable strategy to transform MSWI fly ash from incineration waste into a safer and more environmentally benign material. This study aims to comprehensively investigate the potential of utilizing cow bone waste to stabilize heavy metals, focusing on Pb, within municipal solid waste incineration fly ash. Experimental investigations encompassed cow bone-to-fly ash weight ratios ranging from 0.0 (control group) to 7:3, a settling time of 2h, and a liquid-to-solid (L/S) ratio of 1.0mL/g. Cow bone waste exhibited pronounced efficacy, particularly within the short settling time, yielding a remarkable Pb removal efficiency of up to 99% at a cow bone waste dose of merely 2% and an L/S ratio of 1.0mL/g. Concurrently, other heavy metals such as Cd, Cu, and Zn were effectively stabilized with a cow bone waste dose of 1.5% during the same 2-h settling period. The results underscore the pivotal roles of ash/bone ratio and settling time in augmenting Pb stabilization in MSWI fly ash. The application of cow bone waste is anticipated to offer a cost-effective and environmentally sound approach, aligning with sustainable waste management principles.

Sustainable utilization of nutmeg fruit rind waste for Cr(VI) removal and resource recovery from industrial wastewater: An integrated approach

The present study demonstrates an innovative circular economic process to repurpose agricultural waste, nutmeg fruit rind into an effective adsorbent followed by its value addition/safe disposal, thereby seamlessly aligning with the principles of green chemistry and sustainable waste management. Low-cost bio-sorbents are one of the most promising substances for pollutant removal in water treatment research. Fruit shells and peels are annoying to the environment because they contribute to solid trash after consumption and add to the daunting challenge of municipal solid waste management. This study investigated the potential of nutmeg fruit rind waste, a readily available agricultural byproduct, for the removal of hexavalent chromium (Cr(VI)) from contaminated streams. The findings highlight the significant removal efficiency of Cr(VI) ions through adsorption onto the nutmeg fruit rind waste, underscoring its potential as an affordable and eco-friendly solution for wastewater treatment. The study showed that pH, adsorbent dosage, adsorbate concentration, contact time, and temperature significantly influence adsorption. The insights into the adsorption mechanism revealed that the electrostatic interaction, hydrogen bonding, ion exchange, and surface complexation primarily contributed to the removal of Cr(VI) ions. The kinetics studies matched well with the pseudo-second-order kinetic model, and the sorption fits the Sips isotherm, while thermodynamic studies confirmed the spontaneity and exothermic nature of the process. The quantitative removal of Cr(VI) and other co-existing heavy metals from real textile wastewater samples was demonstrated. Finally, the spent adsorbent was subjected to anaerobic digestion to recover biogas and Cr(VI), which offers a sustainable solution to mitigate the contamination risk associated with discarding the spent adsorbent while contributing to resource recovery.

APLIKASI PENGELOLAAN LIMBAH RADIOAKTIF BERBASIS ANDROID DI KEDOKTERAN NUKLIR RSUP DR. KARIADI

The utilization of ionizing radiation sources for diagnostics and therapy, such as radioactive substances, including radionuclides and radiopharmaceuticals, generates radioactive waste. This radioactive waste poses potential radiation hazards for workers, members of the public, and the environment. Therefore, it is crucial to manage it correctly by established regulations. Radioactive waste resulting from the utilization of Nuclear Medicine varies in terms of activity value and mass, necessitating different storage times and appropriate management. Considering these factors, this study aims to develop an Android-based application called 'Si Mbah KeCE Kariadi' (Kalkulasi Limbah Kedokteran-Nuklir Cepat dan Efektif di RSUP Dr. Kariadi) for the management of low and medium-level open radioactive waste in Nuclear Medicine. This application aims to estimate when radioactive waste can be released before being discharged to the hospital's sanitation department. The research method employed in this study involves applying the principles of radioactive waste management, specifically the decay of activity. The radioactive waste release calculator application is generated by utilizing the radioactive decay equation derived from measuring the initial radioactive waste radiation exposure rate using a survey meter radiation measuring instrument and referencing the clearance level value to estimate the release time of the radioactive waste. The evaluation of this application indicates that the radiation exposure value of the radioactive waste is equivalent to the background radiation level at its release, suggesting that it can be disposed of in the hospital sanitation department for further management as infectious waste from patients. Keywords: radioactive waste management, activity decay, application of android, nuclear medicine, clearance level.

An analysis of the compliance of the environmental protection and waste management principles with the circular economy principles

Subject. This article discusses Russia's policy in the field of ecology. Objectives. The article aims to justify the need for a transition to cyclical patterns of resource use. Methods. For the study, I used the methods of content and comparative analyses. Results. The article finds that most of the principles of the basic cycle economy are enshrined in Russian legislation, which indicates Russia's readiness to implement sustainable development models. Conclusions and Relevance. The results of the study can be used in the development of federal and regional laws regulating environmental protection relations. The problem of transition to a circular economy is relevant in the context of an increase in the volume of production and consumption waste, as well as a decrease in the availability of natural resources.

Study of design criteria for the Ayung River estuary area as an urban riverfront park in Denpasar City, Bali

Public green open space management currently tends to be in strategic areas in Denpasar City, such as the Sanur coastal area, city center, and city roads. This centralization will, in time, create a feeling of saturation and require a new atmosphere and unequal development. One of the efforts is to explore the potential of vacant land in coastal areas that have yet to be touched by development, one of which is the estuary of the Ayung River. The community currently uses the edge of the estuary of the Ayung River for recreational activities. The first step is to have a design that supports this function, especially since this area has ecological benefits for the city. The research objectives can accommodate the community's needs, managers, regional potential, and sustainable landscape design approaches. The analysis technique used is descriptive analysis technique using walkability analysis and triangulation approaches. The results of the study integrate the theory of sustainable coastal area landscape design by producing design criteria, namely: Socio-cultural function design criteria with the principle approach of environmental community involvement, Economic function design criteria with the application of the economic tenets involving Small and Medium Enterprises (SMEs), Environmental function criteria with the principles of waste management, linkage criteria with an energy efficiency function approach, and aesthetic function design criteria with a safe and comfortable material principle approach.

Perundang-Undangan Rumah Sakit Dalam Pengelolaan Limbah Medis Sebagai Upaya Memantapkan Tanggung Jawab Lingkungan

Hospital medical waste is part of the hospital's environmental sanitation activities, which aims to protect the public from the dangers of environmental pollution caused by hospital waste and prevent the spread of disease. The purpose of this research is to find out the regulations or legal principles of medical waste management in hospitals. This type of research relates to normative laws and regulations, research materials consist of primary and secondary materials. Data were obtained using a qualitative descriptive method. Based on the results of the study, hospital waste management policies can be implemented in several ways, namely volume reduction, reuse, recycling and elimination of manipulation in accordance with laws and regulations.

SECONDARY EDUCATION TEACHERS' VIEWS ON ISSUES RELATED TO WASTEWATER AND SOLID WASTE MANAGEMENT

This research investigated the views of secondary education teachers in Greece regarding waste management. A questionnaire was administered to 332 in-service secondary education teachers from various specialties to collect data on their views related to their ability and willingness to implement waste management topics, knowledge of waste management terms, and prioritization of waste management actions. The findings revealed that secondary education teachers expressed a moderate to low level of ability to implement educational activities related to waste management, with a wide distribution of views. They express that they felt more confident in implementing Environmental Education Programs (EEP) related to solid waste management than wastewater management. Teachers showed interest in participating in and organizing environmental programs, particularly for solid waste management. While teachers demonstrated a moderate level of basic knowledge of waste management, their understanding varied across different topics. Some terms were well-known, while others were less familiar. Teachers had a limited understanding of waste management principles and struggled to correctly prioritize waste management actions, with a significant percentage prioritizing recycling over waste minimization. These findings highlight the need for further education and training for secondary education teachers in Greece regarding waste management and environmental education. Improvements are necessary to bridge the gap between teachers' knowledge and understanding of waste management principles. This study emphasizes the importance of integrating waste management topics into teacher education programs and providing ongoing professional development opportunities. This research contributes to the literature by identifying areas for improvement in environmental education practices among secondary education teachers in Greece. The findings provide insights for curriculum development and teacher training programs. Future research should evaluate the effectiveness of environmental education initiatives aimed at enhancing teachers' knowledge and understanding of waste management principles.<p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/soc/0015/a.php" alt="Hit counter" /></p>

Evaluation and selection of a rational test method for heavy metal leaching in terms of environmental and economic factors

The paper presents a specific model used to assess and select the method of heavy metal leaching from waste materials. A recommendation for the rational selection of the leaching method was made, taking into account the crucial parameters affecting the leaching process derived from the authors' research experience. The assessment models were supplemented with characteristics relating to the cost and time required to perform the tests. An approach was developed that links the weights of the assessment criteria with the degree of environmental risk from a particular heavy metal and waste type. Using multiple-criteria decision analysis, four models were developed for the assessment and selection of a test method for the leaching of heavy metals from waste. The difference is in the way the weights of the assessment criteria depend on the potential threat of the waste to the environment. A key element of the proposed approach is assigning the weights of the criterion to the toxicity of the heavy metal, the type of waste, and their management method. The results obtained prove that the current practice of only employing the batch leaching test is inappropriate. The choice of method should be justified in terms of environmental safety as well as time- and cost-effectiveness. The results of the paper show that the proposed model can be used in practice and be a recommendation for choosing the method of leaching heavy metals from waste and their further treatment, following the principles of sustainable waste management.

Environmental sustainability assessment of excavation, construction, and demolition waste conditions and practices across Greece and Cyprus

The construction industry led by the real estate sector plays a significant role in the environmental performance. Excavation, construction, and demolition waste are important waste generators in Europe. Many of the materials are recyclable or reusable, however rates of reuse and recycling vary greatly across Europe. The objective of this preliminary research is to analyse the excavation, construction, and demolition waste conditions that have prevailed in recent years throughout Europe, with a focus on Greece and Cyprus, considering the scarce coverage of this specific subject matter. The study outlines the excavation, construction, and demolition waste management principles and trends, as well as the methods for prevention, reduction, reuse, and recycling. Findings suggest a) an increase of the excavation, construction, and demolition waste, in connection with the construction industry growth, b) uncontrolled disposal is a common practice, which, however, severely pollutes the environment, and c) policymakers advocate for circular economy integration strategies. The current analysis argues that the answer to the efficient management of excavation, construction, and demolition waste involves prevention policies development, long-term strategic planning across all levels, as well as treatment, reuse, and recycling in waste management establishments using vertically integrated operations.

Integrated Solid Waste Management for the Circular Economy: Challenges and Opportunities for Nepal

The article emphasizes the importance of implementing Integrated Solid Waste Management (ISWM) and circular economy principles for effective solid waste management, which prioritizes waste prevention, recycling, and environmentally sound disposal practices. The article provides an overview of how ISWM and circular economy principles have been successfully implemented in several countries worldwide and emphasizes the need for their adoption in Nepal, where proper solid waste management systems are often inadequate or non-existent. The article provides insights into the challenges and opportunities for Nepal in adopting such practices and recommends practical methods for improving waste management in the country. The researchers conducted a comprehensive search of the available literature on the topic of ISWM and circular economy in Nepal to draw conclusions and recommendations for the future direction of solid waste management in Nepal. Although, there is the formulation of new laws and policies related to solid waste management in Nepal, the country lacks active implementation of the laws by both governments and waste management companies.

Applicability of green building rating tools in minimizing construction waste within the Iraqi building projects

Due to the rapid growth of the building sector, a tremendous amount of waste is generated, which has become an alarming issue for every country. Therefore, there is a substantial need to implement a sustainable way to minimize the construction solid waste (CSW), generated through the construction activities. Construction solid waste management (CSWM) is an essential method for fostering sustainability in the construction industry. It is considered as one of the indispensable advantages, which are stipulated in the green building systems (GBRSs). The aim of this study is to explore the potentials of various GBRSs in minimizing the solid waste generated by the construction activities in the Iraqi building sector. Firstly, a description of research methodology is provided based on a systematic review and text mining approach. Then, An extensive review on CSW and GBRSs as well as the recent research trends on the implementation of CSW minimization in Iraq. After that, applications of GBRSs on CSW minimization are addressed. Next, the major challenges and obstacles to the application of GBRSs in minimizing the CSW are addressed. Finally, concluding remarks are withdrawn. Based on the findings, it was found that it can be concluded that reuse, reduce and recycling principles of construction waste management have become a worldwide phenomenon. However, previous research studies have not considered the achievement of CWM along with GBRSs promotion within Iraqi construction industry. The information of this research can be beneficial to both Iraqi researchers and practitioners.

Circular Economy of Cultural Heritage—Possibility to Create a New Tourism Product through Adaptive Reuse

Cultural heritage is a particularly significant resource in creating tourism. When a local community recognizes its cultural heritage (small historic towns, buildings, castles, and forts), it is possible to create new value to meet the needs of tourists, using the principles of a circular economy. Adapting, reusing and restoring heritage sites can contribute to the revitalization of the local economy by creating jobs (increased employment), increased spending, economic development, etc. Adaptive reuse, as one of the principles of a circular economy, represents how the circular economy can pave the way to create new tourism products. The three basic principles of sustainable waste management are reduce, reuse, and recycle (3R). This paper tackles the reuse principle by analyzing case studies involving the application of a circular economy to cultural heritage in the Kvarner tourism destination (Croatia) in the context of reusing resources to create a sustainable destination. The goal is to determine to what extent the reuse of heritage sites makes them useful for the local community, and for tourists to stay in the destination. The research showed positive examples in the Kvarner tourism destination, primarily of a cultural tourism nature and that were achieved in the last ten years; however, the conclusion is that this is still insufficient. By aggregating knowledge and research results, the paper emphasizes the importance of applying the concept of the circular economy to cultural heritage in tourism destinations, with special emphasis on the role of all stakeholders in creating sustainable heritage tourism (local self-government, destination management, local population, and entrepreneurship).

Healthcare Waste-A Serious Problem for Global Health.

Healthcare waste (HCW) is generated in different healthcare facilities (HCFs), such as hospitals, laboratories, veterinary clinics, research centres and nursing homes. It has been assessed that the majority of medical waste does not pose a risk to humans. It is estimated that 15% of the total amount of produced HCW is hazardous and can be infectious, toxic or radioactive. Hazardous waste is a special type of waste which, if not properly treated, can pose a risk to human health and to the environment. HCW contains potentially harmful microorganisms that can be spread among healthcare personnel, hospital patients and the general public, causing serious illnesses. Healthcare personnel are the specialists especially exposed to this risk. The most common medical procedure, which pose the highest risk, is injection (i.e, intramuscular, subcutaneous, intravenous, taking blood samples). The World Health Organization (WHO) estimates that around 16 billion injections are administered worldwide each year. However, if safety precautions are not followed, and needles and syringes are not properly disposed of, the risk of sharps injuries increases among medical staff, waste handlers and waste collectors. What is more, sharps injuries increase the risk of human immunodeficiency virus (HIV), hepatitis B and C viruses (HBV/HCV), tuberculosis (TB), diphtheria, malaria, syphilis, brucellosis and other transmissions. Disposing of medical waste in a landfill without segregation and processing will result in the entry of harmful microorganisms, chemicals or pharmaceuticals into soil and groundwater, causing their contamination. Open burning or incinerator malfunctioning will result in the emission of toxic substances, such as dioxins and furans, into the air. In order to reduce the negative impact of medical waste, waste management principles should be formulated. To minimize health risks, it is also important to build awareness among health professionals and the general public through various communication and educational methods. The aim of this paper is to present a general overwiev of medical waste, its categories, the principles of its management and the risks to human health and the environment resulting from inappropriate waste management.

Management of Ship Waste in A Seaport as An Element of Environmental Management on The Example of The Port of Gdynia

The development of the transportation system taking into account ecological aspects in the literature is generally defined as the shaping of a sustainable transportation system. Thus, the shaping of a sustainable transport system is related not only to the implementation of transport policy objectives, but also to environmental issues such as air, land and water pollution, noise, or vibrations emitted by means of transport. Environmental management issues do not bypass seaports. The purpose of this article is to identify the basic principles of waste management in a seaport, using the port of Gdynia as an example. The article is of a review nature with the elements of case study. The following methods were used: narrative literature review, synthesis, and methods of logical reasoning (deduction, induction, and abduction). This study contributes to the literature by providing new theoretical explanations for the relationship between management of ship waste in a seaport and environmental management.

Ka cirkularnoj ekonomiji - evaluacija performansi upravljanja otpadom u zemljama evropske unije

Achieving the goals of the circular economy implies taking actions aimed at waste reduction which can be implemented through suitable waste management principles. The idea of the paper is to evaluate and compare the performance of waste management at the level of the European Union (EU). The paper aims to construct a composite index based on selected indicators from the Eurostat database using multi-criteria analysis methods. The CRITIC method was used as a method for determining weight coefficients, while Grey Relational Analysis (GRA) was used as a method for calculating the composite index of waste management performance. The results indicate that the countries of Western and Central Europe record the best results in creating adequate waste management practices (Belgium, the Netherlands, Slovenia, Luxembourg and Austria). It is also noticeable that the countries that joined the EU much later have the lowest values of the index that measures waste management performance, such as Bulgaria, Romania, Cyprus, Slovakia, Croatia, Malta and Poland, respectively. In the coming period, policymakers must pay more attention to respect for the principles of waste management in the newer member states of the EU, in order to reach convergence in the future.

Problems and Prospects of Legal Regulation of the Federal State Information System for Accounting and Control of Waste Management of Hazard classes I and II

The need to preserve the population, the health and well-being of people, to ensure a comfortable and safe environment for life determines the importance of a scientifically based transformation of the waste management system, including waste of hazard classes I and II. In the conditions of digital transformation, the Federal State Information System for Accounting and Control of Waste Management of hazard classes I and II has become a factor in streamlining state management of waste management. The system in question was created for the purpose of information support of waste management activities. At the same time, its creation began in 2019 and included a set of legal, organizational and informational measures. The author has determined that the implementation of this system ensures the implementation at a more advanced level of some economic and legal principles of waste management, including the principle of "polluter pays", the principle of economic incentives and the principle of proximity. At the same time, taking into account the identified problems at the present stage of development, directions for improving this system are seen, including: increasing its openness to ensure the possibility of civil control over the sphere of waste management, as well as the use of up-to-date digital technologies, including smart contract technologies that provide automatic transmission of information to the system. The author's ideas can be used to improve the legal regulation of this system and subsequent scientific research.