Volume Of Waste Research Articles

Analysis of Waste Management at TPS Perumnas Mandala, Kec. Percut Sei Tuan

Indonesia is a country with a very large population and the trend continues to increase. The North Sumatra region produces the 7th largest volume of waste in Indonesia, with around 882,033 thousand tons of waste generated. Perumnas Mandala is one of the areas in the city of Medan that has a dense population, where the temporary disposal site (TPS) is not far from residential areas. So the problem of waste management arose at the Perumnas Mandala waste landfill, Percut Sei Tuan district. The aim of this research is to determine waste management at TPS Perumnas Mandala Kec.Sei Tuan. This research uses a qualitative approach with descriptive research type. The population in this study were all residents around Perumnas Mandala. The samples in this study were informants, namely the head of waste officers at the Perumnas Mandala TPS, 2 waste officers at the Perumnas Mandala TPS, and several residents around the Perumnas Mandala TPS, namely around 5 communities around the Perumnas Mandala TPS, using a purposive sampling technique. The research results show that waste management at TPS is still not good due to several factors such as lack of waste transportation facilities, lack of waste officers in managing waste at TPS, lack of community habits in sorting types of waste, limited trucks and trucks that are damaged so they stop working. operating waste transportation for 4 months, this has caused the volume of waste to increase at the TPS. The conclusion of this research is that waste management at the Perumnas Mandala TPS is not optimal, it is recommended that the government and the private sector improve facilities and infrastructure as well as collaborate with the community in managing waste well.

Healthcare waste management knowledge, attitudes and practices of laboratory workers at a regional hospital, Lesotho

Background: Safe management of healthcare waste (HW) safeguards laboratory biosafety and biosecurity. Knowledge and attitudes influence HW practices, presenting a need for evidence of the current status.Objective: This study assessed the knowledge, attitudes and practice of laboratory workers towards waste management at a regional hospital laboratory in Lesotho.Methods: The study was conducted from March 2023 to June 2023 using a mixed-methods descriptive case study design. The entire population (n = 30) of technical and non-technical laboratory workers and generated waste were sampled. A structured questionnaire and an observational checklist were used to collect data. Waste generation was assessed by weighing and measuring waste volumes. Data were analysed using descriptive statistics.Results: All respondents (26/26; 100%) can define HW and (3/3) laboratory assistants (100%) gave correct responses for three questions, namely: risk associated with HW, waste container colour-coding, and disposal requirements. Knowledge on waste management responsibilities ranged between 0% (0/4) for cleaners and 54.5% (6/11) among laboratory technicians. Attitudes were mainly positive, and practices conformed in part to standard operating procedures. Infectious solid waste comprised 77% of solid HW, while 63% of chemical liquid waste emanated from the full blood count area.Conclusion: Knowledge exists among workers and attitudes are predominantly positive; however, some unsafe practices continue, thus knowledge is not fully translated to safe practices. Regular training and measuring and recording of HW were recommended.What this study adds: The study contributes understanding of the status of HW knowledge, attitudes and management practices, highlighting the need for compliance monitoring.

Pengelolahan Sampah Di Kawasan Wisata Bukit Kebo Balikpapan Melalui Konsep Bank Sampah

The ecotourism environment must be kept clean and sustainable for the sake of sustainability and comfort of visitors. Bukit Kebo Tourism Area is one of the many ecotourism and edutourism destinations in Balikpapan City. With the increasing number of visitors (tourists) to Bukit Kebo, it has an impact on the increase in the volume of waste produced. The increase in the volume of waste has not been managed properly, because the waste is only piled up and burned. Where the impact of hoarding can provide the potential for environmental pollution and the results of burning waste also cause pollution. In overcoming these problems, a solution is offered by using the concept of a waste bank to manage waste, as well as providing assistance to partners about the importance of recycling waste. In addition, education is also carried out for visitors to increase awareness and attention about the importance of maintaining environmental cleanliness through the installation of appeal plaques and campaigns through the distribution of brochures. The results of the responses given by management partners and visitors show quite positive results regarding the impacts given from the results of activities to always maintain environmental sustainability and cleanliness, especially in tourist areas.

Garbage Out: A Radiologist's Guide to Hospital Waste Streams.

What happens to trash after disposal? The management and processing of discarded items is often opaque and taken for granted, but an understanding of hospital waste streams is important for radiology departments and hospital systems for economic, regulatory, and environmental reasons. In this paper, we discuss the numerous waste pathways including general, hazardous, pharmaceutical, radioactive, and electronic waste as well as sustainable waste streams including laundry services, composting, and recycling. Costs, regulatory issues, and environmental considerations associated with each pathway are reviewed. We also describe radiology's specific contributions to each waste stream as well as variations in department practices, tips for optimal use, and future research investigations that could impact waste volume. Healthcare garbage disposal pathways will only increase in importance as our healthcare needs and systems continue to grow, and waste optimization efforts yield benefits to operation costs, environmental ecosystems, and human health.

Utilization of Textile Waste for Sustainable Product Development With Modular Concept: a Case Study in Gang Tamim Bandung

This study identifies and analyzes the condition of textile waste volume, explores and determines techniques that can be used to utilize textile waste, and evaluates the effectiveness of the application of techniques used to utilize textile waste produced at the fabric and confection center in Gang Tamim Bandung. The research method uses Design Thinking with the following procedures: empathize, define, ideate, prototype, and testing. The results of the study indicate that the condition of the volume of textile waste is large, in the form of leftover fabric pieces, yarn, and other materials. The techniques in utilizing waste are mechanical recycling, chemical recycling, and upcycling techniques. The results of the effectiveness test with the selected procedure show products that are truly relevant and effective, and according to consumer needs.

Heavy metal loading effects on special nuclear material and waste of an uprated Indonesian Reaktor Daya Eksperimental

This technical policy study investigated the effect of heavy metal loading (HML) quantity in the pebble fuel on the special nuclear material (SNM) and waste quantities in an uprated Indonesian pebble bed reactor design, the Reaktor Daya Eksperimental (RDE). A set of Monte Carlo simulations, performed using OpenMC, was deployed to simulate the pebble fuel depletion using an infinite lattice reactor calculation. This study considers HML, fuel residence time, leftover 235U, total Pu, medium- and long-lived wastes, number of depleted pebbles, and volume of waste at different HML values, at attainable discharged fuel burnup, at a target burnup of 80 GWd/MTU and at different reactor powers (10 and 40 MWt). Due to an over-moderation effect, a higher HML quantity shortened the attainable discharged fuel burnup level, which also translated to a lower fuel utilization. An 80% higher HML quantity resulted in about a 25% lower burnup level. Assuming a five-pass refueling scheme, this resulted in approximately three times more leftover 235U, 2.4 times more Pu, 1.4 times more medium-lived waste, and 1.5 times more long-lived waste collections per year. The study showed that a power uprating by a factor of four increased the SNM and waste quantities by four times.

Sustainable Management of Green Waste in Urban Settings: A Case Study on Energy Recovery and Heating Solutions in the Municipality of Athens (Greece)

The increasing volume of municipal solid waste (MSW), including biodegradable plant residues such as pruning, leaf, and kitchen wastes, presents a substantial environmental challenge due to the limited availability of landfill space and the resulting environmental contamination. Sustainable waste management practices, encompassing recycling and waste-to-energy conversion through biological or thermochemical processes, are imperative. In the Municipality of Athens, Greece, significant quantities of green waste generated from public and private gardening activities provide a valuable opportunity for energy recovery and landfill waste reduction. In accordance with Directive 2008/98/EC, Athens emphasizes waste prevention, reuse, recycling, and recovery. This study examined alternative bio-waste and green waste management systems, using examples from Europe, focusing on the Athens Directorate of Urban Green Spaces and Urban Wildlife. This paper discusses methods for assessing the energy value of pruning residues, providing a definitive disposal framework. Additionally, it presents a technoeconomic study of one of the municipal swimming pools in the Municipality of Athens, investigating the production and distribution of thermal energy to meet the heating needs of the pool facilities. This research identified key constraints and their impact on decision-making, highlighting the potential for alternative green waste management strategies. It advocates modern recycling techniques in line with national and community legislation, which have significant environmental and economic benefits.

Cyclic Removal and Destruction of Per- and Polyfluoroalkyl Substances from Water Using Ion Exchange, Resin Regeneration, and UV/Sulfite Reduction

Ion exchange (IX) can effectively remove per- and poly-fluoroalkyl substances (PFAS) from drinking water sources at ng/L to µg/L levels. However, adsorbed PFAS on spent resins should be further destructed for detoxification. Traditional resin incineration or landfilling may cause secondary pollution to the surrounding environment and cannot achieve resin reuse. This study explored three variations of a PFAS treatment train, aiming to completely defluorinate PFAS with different chain lengths and functional groups at environmentally relevant levels (ng/L) and to reuse the resins and solvents. The optimized treatment train includes IX, resin regeneration with 5wt% NaCl and 60% v/v methanol, distillation of waste regenerant, and advanced reduction by hydrated electrons (eaq−) generated during the ultraviolet/sulfite (UV/sulfite) treatment of still bottoms. Such a treatment train achieved nearly 100% PFAS removal from surface water and groundwater using either PFAS-specific or generic resins, and almost 100% defluorination of PFAS except a few short-chain fluorinated sulfonates and ethers. Regenerated resins had comparable PFAS removal to the pristine resins over three cycles. The generic resins (e.g., Dupont AmberLite™ IRA910) are easier to regenerate and thus are recommended for the treatment train over PFAS-selective resins (e.g., Purofine® PFA694E). Direct heterogenous defluorination on resins loaded with perfluorooctane sulfonate (PFOS) was ineffective, potentially due to the consumption of UV light/eaq− by the resins and insufficient contact between the UV light/eaq− with PFOS on the resin surface. Distillation of the waste regenerant successfully concentrated PFAS in the still bottoms, reduced the waste volume, and removed excess methanol, all essential for effective UV/sulfite treatment. Meanwhile, the produced condensate with high methanol contents and low PFAS levels can be reused for the next regeneration cycle. Findings from this study provide a timely and sustainable solution to the stringent and evolving regulations on PFAS and the resultant production of PFAS-laden resins as hazardous wastes.

Mitigating Landfill Emissions Strategies for Effective Waste Management in Tabuk

This study investigates the environmental impacts associated with solid waste management in the Tabuk region of Saudi Arabia, specifically focusing on the implications of landfill emissions. With the population of Tabuk projected to increase from 887,536 in 2023 to 928,036 by 2050, the quantity of waste generated is expected to rise significantly, reaching an estimated 575,846,338kg annually. This research highlights the critical relationship between increasing waste generation, greenhouse gas emissions, and environmental degradation, emphasizing the production of methane and carbon dioxide—potent contributors to global warming and air pollution. Utilizing the LandGEM model, emissions associated with rising waste volumes are quantified, revealing alarming trends in soil and groundwater contamination that adversely affect local ecosystems and biodiversity. Furthermore, the analysis indicates that the potential for biogas production from waste could yield substantial energy output, with projections showing an increase in biogas collection from 99,741m³ in 2024 to approximately 1,514,931m³ by 2050, translating into over 15 million kWh of renewable energy. The findings underscore the urgent need for effective waste management strategies in Tabuk, advocating for enhanced waste segregation and investment in waste-to-energy technologies as viable solutions. Ultimately, this research lays the groundwork for developing sustainable waste disposal practices that align with Saudi Arabia’s Vision 2030, fostering environmental sustainability and public health in the region.

Factors Affecting the Classification of Domestic Solid Waste in Cho Moi District - Bac Kan Province

This article studies factors affecting household waste classification in Cho Moi district, Bac Kan province. The author uses information collection methods, field surveys and statistical information processing methods. The results obtained: the volume of domestic solid waste generated in the whole district is about 38 tons/day. The study area includes 3 communes, of which Nong Ha commune has the highest volume of solid waste generated at 3.9 tons/day. The entire district has 1 garbage collection vehicle, so the collection truck comes to each commune twice a week. If the vehicle has a problem, there will be no other vehicle to collect it. The fee for household waste treatment is 4,000 VND/person/month. If they throw away trash, that household will pay. Women often sort trash more simply by keeping the items so they can sell the junk and add some money to the family. People under the age of 30 tend to know and care about waste classification more than other ages. The proportion of people who have never heard of waste regulations accounts for 60.48%, while those who clearly understand the regulations are 60.48%. determined to only account for 3.81%. When it was announced that they would be fined if they did not classify their trash, the people here were extremely calm because they believed that no one would know whose trash bag belonged to the pile and who would be fined.

Аналіз потенціалу отримання композиційного моторного палива з відходів пластику та поліетилену та відходів зношених шин в Україні

This study analyses the volumes of plastic, polyethylene, and waste tires generated in Ukraine and assesses the potential for obtaining alternative fuels from these wastes. This waste is accumulating rapidly around the world, and Ukraine is no exception. Therefore, the purpose of this study is to determine the potential for obtaining domestic alternative fuels from waste plastic, polyethylene, and waste tires. The subject of study is the encompasses waste plastic, polyethylene, and waste tires. The subject of the study is waste plastic, polyethylene, and worn-out tires, and their energy potential for alternative fuel production. The working hypothesis of the study is that the establishment of an environmentally friendly collection and processing of these wastes can partially resolve the energy situation in the country. A systematic review of existing studies was chosen as the research method, as official data from the State Statistics Service of Ukraine does not fully reflect the current state of waste generation. The study revealed the following. The volume of plastic waste generated in Ukraine annually ranges from 990 thousand tonnes/year to 1820 thousand tonnes/year, with an average of 1405 thousand tonnes/year. Accordingly, the amount of fuel that can be obtained from plastic waste ranges from 297 thousand tonnes/year to 1729 thousand tonnes/year. Every year, 3–4.1 million tonnes of polyethylene waste remains unrecycled. The potential for producing fuel from polyethylene waste ranges from 1500 thousand tonnes per year to 3700 thousand tonnes per year. Ukraine generates 225–360 thousand tonnes of unused worn-out tires annually. The potential for obtaining fuel from waste tires ranges from 67.5 thousand tonnes per year to 180 thousand tonnes per year. Thus, the total potential for obtaining motor fuel from waste plastic, polyethylene, and waste tires ranges from 1864.5 thousand tonnes/year to 5609 thousand tonnes/year and indicates the need to establish environmental management of these wastes in Ukraine. The proposed hypothesis has been substantiated by the results of these studies. Keywords: composite motor fuels, plastic recycling, polyethylene recycling, waste tire recycling, environmental protection, energy efficiency, decarbonization.

Waste Management and Recycle Practices in the Hotel Industry

Background: In the current era of eco-friendly and environmental strategies, waste practices like recycling offer potential benefits for the hotel industry. However, research supporting the financial advantages of these practices is still lacking. Objective: This study aims to explore the waste management which is being produced by the hotel sector and recycle practices which are adopted by the hotel. The study also evaluates the potential environmental benefits of recycling, particularly in relation to reducing greenhouse gas (GHG) emissions. Methodology: Primary data was collected via a questionnaire distributed to 37 hotels, of which 22 expressed interests in completing the questionnaire and participating in face-to-face interviews. SPSS was used for the data analysis and thematic analysis used for analyzing the interview data. Locale of the study was Delhi NCR, Region. Results: The paper’s findings reveal a total waste volume of 584.33 units, with 212.16 units distributed across the different categories such as plastic bottles, other plastic, aluminum etc. The results suggest that hotels need to implement more stringent recycling practices, which would not only benefit the environment but also unlock potential financial advantages. Additionally, promoting guest involvement in recycling initiatives is advised to improve cost-effectiveness and profitability within the industry. Conclusion: Effective waste management and recycling practices are essential for enhancing sustainability in the hotel industry.

Pre-pilot forward osmosis – Membrane distillation hybrid system for sustainable produced water treatment and reducing volume of hazardous waste in oil and gas industry

This study introduces pre-pilot scale hybrid forward osmosis - membrane distillation (FO-MD) module, designed for the simultaneous treatment of different challenging produced water (PW) streams from Oil &Gas Industry. In this module, hot draw solution simultaneously serves as MD feed solution. The performance of this module was assessed with synthetic and real PW streams for extended operating times. The MD permeate production was doubled and comprised 0.4 L/h for 7:1 MD/FO area ratio (0.105 m2 and 0.015 m2, respectively) compared to permeate production that was observed with equal MD and FO membrane area (0.015 m2 each). The conductivity of the final product water was 364.9 ± 2.7 μS/cm, comparable to the typical potable water conductivity, implying its potential for reuse applications and minimizing volume of hazardous waste. Analysis of MD permeate quality showed that concentration of major ions was reduced by >99 % and chemical oxygen demand was removed by 90.1 %. Continuous operation with real produced streams led to partial pore wetting on the MD active layer. The microscopy showed organic fouling caused by oil and grease deposition and NaCl/CaSO4 scaling was found on both sides of FO membrane. These results suggest that PW pretreatment should be implemented to alleviate membrane fouling and pore wetting. We also observed reverse solute flux of 7.07 g/m2 h in experiments utilizing real DE and WO streams. The results of this study helped to identify challenges arising from the system scale-up and provide grounds for integrating hybrid FO-MD technology to recover water from oil and gas facilities.

Optimalisasi Budidaya Maggot oleh Bank Sampah Dadali melalui Program MELIMPAH : Sinergi Ekonomi dan Keberlanjutan Lingkungan

The waste problem is a serious issue that can have a major impact on the environment and human life, with around 24% of waste in Indonesia not being managed, including in the city of Bekasi. One of them is household organic waste which is often disposed of carelessly without being managed first, which can cause air pollution and environmental damage. Thus, effective organic waste management, such as through the cultivation of Black Soldier Fly (BSF) maggots, offers environmentally friendly and economical solutions, so that PT Pertamina EP Zone 7 Tambun Field, in collaboration with the surrounding community, initiated a maggot cultivation program through the Dadali Waste Bank, Kalibaru Village, Bekasi, to reduce the volume of waste and increase environmental and economic sustainability.

Intelligent control system for technological complexes of aluminum industry enterprises

Relevance. Aluminum production is one of the most important industries all over the world. It has a high environmental load, resource and energy intensity. To reduce the negative impact of aluminum production, efforts are underway to improve its technological processes, aimed at increasing aluminum recovery rates, reducing waste volumes, and lowering energy consumption. The reduction of energy consumption can be achieved, among others, through implementing control systems that provide energy management. Due to the complexity and multiplicity of technological processes in aluminum production, the use of traditional linear approaches for such control systems is ineffective, and adequate mathematical models are required. At the same time, for the production level, the use of mathematical models based on a phenomenological description of the ongoing physical processes overly complicates the control task. As a result, the use of intelligent and adaptive approaches to both the mathematical description of technological processes and the optimal energy consumption management is relevant. Objects. Technological complexes of aluminum production, which have the properties of inertia, nonlinearity, and closedness; and the control system based on artificial intelligence methods. Alumina production is chosen as an illustration. Aim. To develop mathematical models capable of adequately describing the interrelated processes in the technological complexes under consideration, as well as the control system that allows optimal energy consumption management. Methods. For the mathematical model based on balance equations under uncertainty, the fuzzy-set theory was used along with the gradient descent method to identify the model parameters; for the optimization task, the genetic algorithm method was used. Results. The mass balance model and the process conditions changing model have been developed to determine the energy consumption for the technological complexes of aluminum production with continuous inertial nonlinear closed production. Based on these models, the dynamic characteristics of energy consumption and the parameters of technological processes were determined depending on the main controlled parameters, allowing us to predict emergencies. Considering technological parameters and cost factors, the optimization task for energy consumption management was solved.

Assessing the Effects of Unit-Based Pricing on Household Waste Reduction During COVID-19 in Japan

Focusing on the COVID-19 period in Japan, this study identifies the effectiveness of a municipal unit-based pricing (UBP) system on household waste reduction through a panel data analysis targeting 770 cities for 2013–2022. It focuses on simple unit pricing (SUP) and two-tiered pricing (TTP) systems as the UBP components. As previous studies have not considered the COVID-19 period when assessing UBP, this study significantly contributes to the literature by providing new evidence. The main findings are as follows: First, SUP effectively reduced household waste even during the COVID-19 period; however, its effectiveness was slightly neutralized owing to the pandemic environment. Second, TTP also restrained household waste efficiently; however, its effect was smaller than that of SUP, and its reduction effect accelerated during the COVID-19 period (in 2020) because people became cautious about excessive waste volumes beyond the TTP criteria. The study implicates the need to expand the municipal adoption of the UBP system for household waste reduction.

A review on European sustainable practices in end-of-life vehicles management.

The management of end-of-life vehicles (ELVs) has become a significant environmental and economic challenge due to the substantial volumes of hazardous waste generated. This article analyses sustainable practices in ELV management across Europe, with a focus on contributions to the circular economy. The systematic literature review, conducted for articles published in the period 2016-2024, identifies five topics: (1) policy and regulatory frameworks evaluations and suggestions; (2) economic and environmental benefits through optimization modelling; (3) trends and performances analysis; (4) advanced treatment technologies and their impact and (5) economic and environmental impacts assessments. The findings highlight the importance of state-of-the-art recycling processes and coordinated stakeholder efforts in improving ELV management outcomes. In addition, the correlation between ELVs recycling and gross domestic product (GDP) was analysed. Data analysis for 27 European countries in the period 2016-2021 shows a moderate correlation. Specifically, countries with stronger economies tend to produce more ELVs, distinguishing two clusters when GDP is 35,000 € per capita. By adopting best practices and innovative approaches, European countries can enhance their ELV management systems, support a more circular economy and sustainable development. This work highlights the possible correlation between GDP per capita and ELV recycling rates across the European Union, the identification of economic clusters, and the critical role that advanced recycling technologies play in improving sustainability.

CIRCULAR ECONOMY IN PHOTOVOLTAICS: AN ANALYSIS OF GLOBAL REGULATIONS AND THEIR IMPLICATIONS IN BRAZIL

As the market expands, the volume of waste generated by this sector is also growing. However, in many countries, regulations for the management of this waste at the end of its useful life are still inadequate, partly because the amount of solar modules discarded to date has been relatively low. This study reviews the value chain of solar photovoltaic energy, focusing on the analysis of regulations aimed at the management of photovoltaic waste at the end of its useful life, both at the national and international levels. To this end, a bibliometric review was conducted that analyzed 654 peer-reviewed articles published in English. The results provide an overview of the global regulations and standards applied to the treatment of photovoltaic waste, providing useful information for entrepreneurs and policy makers in evaluating future photovoltaic technologies and in the creation of guidelines for the management of this waste.

Matrizes cimentícias com o uso de resíduos de construção e demolição para redução do impacto ambiental de blocos de pavimentação

The construction industry is responsible for the intensive consumption of natural resources and the generation of large volumes of construction and demolition waste (CDW), which are often disposed of improperly. This research developed concrete blocks using recycled CDW aggregates, promoting sustainability and circular economy by reusing these materials in urban infrastructure. Waste was collected from a recycling plant over five months, selecting Brita 1, Brita 0, and Pó de Brita to compose the concrete mixes. Particle size distribution, bulk density, and specific gravity tests were performed, and blocks and specimens were molded with 100% replacement of natural aggregates by CDW. The compressive strength tests were carried out at 14 and 28 days, while the abrasion test was performed only at 28 days. X-ray fluorescence (XRF) and Scanning electron microscopy (SEM) were used to characterize the products. The results indicated a compressive strength of 34.3 MPa at 28 days, close to the minimum required by the standard (35 MPa). XRF analysis showed a predominance of SiO₂, CaO, Al₂O₃, Fe₂O₃, MgO, SO₃, and K₂O oxides, all within normative limits. Leaching and solubilization tests, conducted according to NBR 10005 and NBR 10006, classified the waste as non-hazardous and non-inert. This study demonstrates that using CDW in concrete block production is a viable and sustainable alternative, contributing to waste reduction, material reuse, and the development of sustainable urban infrastructure.

Mengorganisir Sampah yang Tercemar di TPS Masyarakat Dusun Karanglangon Desa Leran Wetan Kecamatan Palang Kabupaten Tuban

Waste is leftover material that is considered to have no economic value, but its existence cannot be avoided in people's social life. In Karanglangon Hamlet, the increase in population that occurs every year increases the volume of waste produced. As the population increases, household waste production and other activities also increase, thereby exacerbating waste management problems in the region. If not managed properly, the increasing amount of waste can have various negative impacts, both on public health and the surrounding environment, such as air, land and water pollution. This problem demands more attention from various parties to find appropriate and sustainable solutions. This research aims to identify in more depth the problems related to waste management at the Dusun Karanglangon TPS using the PAR (Participatory Action Research) approach method. The research results revealed that the condition of the waste at the TPS had a significant negative impact on the surrounding environment. The main causes are limited facilities, minimal budgets, and inadequate waste management standards, resulting in the accumulation of waste and increasingly severe environmental pollution.