{"results":[{"id":"ss_935fc7896434dce463f73f00a6acebe1a86c4775","title":"Review on Indian Municipal Solid Waste Management practices for reduction of environmental impacts to achieve sustainable development goals.","authors":[{"name":"Yash Pujara"},{"name":"P. Pathak"},{"name":"Archana Sharma"},{"name":"Janki Govani"}],"abstract":"Open dumping is a common practice for MSW disposal in most of the Indian cities, apart from the metro-cities. This practice poses significant environmental and health risks due to toxic and greenhouse gases (GHGs) emission through direct combustion and/or decay of wastes. Therefore, integrated solid waste management (ISWM) using different methods viz., incineration, composting, anaerobic digestions, refuse derived fuel, material recovery facility and sanitary landfilling, is much needed. Accordingly, three waste management case scenarios were studied for year 2001-2051 by keeping weightage of sustainable development goals 2030 of India. Case I depicts Indian present scenario of waste management where 164-735 tonnes/year of wastes would be generated for year 2001-2051. Further, 60% of waste can be treated in case II that help in reducing the land requirement up to 40% from estimated conditions of 2031 i.e., 83.8 × 107 m3. The case III is most ideal waste management condition for year 2031 to reduce 80% waste hence landfill requirement would minimize up to 16.76 × 107 m3 where population is at controlled conditions. This article concludes the formal handling and treatment of ISWM would minimize the landfilling, where LCA can be an antidote to achieve sustainable development goals.","source":"Semantic Scholar","year":2019,"language":"en","subjects":["Medicine","Chemistry"],"doi":"10.1016/j.jenvman.2019.07.009","url":"https://www.semanticscholar.org/paper/935fc7896434dce463f73f00a6acebe1a86c4775","is_open_access":true,"citations":239,"published_at":"","score":70.17},{"id":"arxiv_2602.12608","title":"Introduction to High-Temperature Superconductivity for Solid State Chemists","authors":[{"name":"Zenji Hiroi"}],"abstract":"Superconductivity is one of the most amazing properties that metallic conductors exhibit. Electrical resistance is completely eliminated below the critical temperature (Tc), which is the most important parameter in superconductivity. Since the discovery of copper oxide superconductors 39 years ago, many solid state chemists have made significant contributions to the field by discovering new compounds and producing high-quality samples for physical measurements. However, superconductivity research remains challenging for most solid state chemists because it requires knowledge of complicated solid state physics. This manuscript aims to provide a simple, intuitive introduction to superconductivity using only fundamental physics concepts that solid state chemists are familiar with. The author investigates a wide range of materials and classifies them according to the superconductivity mechanisms that may drive them. Specifically focusing on a series of copper oxide superconductors with the highest Tc at ambient conditions, the remarkable material dependence of Tc and the underlying, unconventional superconductivity mechanism that leads to the high Tc are thoroughly examined. Although our understanding of cuprate superconductivity is still fragmented, the author believes that once the branches and leaves are removed, the story will be fairly simple, similar to the phonon-based superconductivity mechanism revealed by the BCS theory. Furthermore, potential strategies for raising the Tc of cuprates and other superconductors are discussed. The author hopes that this article will pique interest in superconductors in young solid state chemists and encourage them to pursue the discovery of still unknown and unexplored room-temperature superconductors in the future.","source":"arXiv","year":2026,"language":"en","subjects":["cond-mat.supr-con"],"url":"https://arxiv.org/abs/2602.12608","pdf_url":"https://arxiv.org/pdf/2602.12608","is_open_access":true,"published_at":"2026-02-13T04:27:46Z","score":70},{"id":"doaj_10.3390/waste3030029","title":"Transforming Waste to Water Filters: A Mini-Review of Ceramic Membranes from Upcycled Materials","authors":[{"name":"Asma Nouira"},{"name":"Mabrouk Ben Hamden"},{"name":"Mouna Sayehi"},{"name":"Imene Bekri-Abbes"}],"abstract":"The escalating global water crisis, coupled with the unsustainable accumulation of industrial and urban waste, demands innovative solutions that align with circular economy principles. This review explores the transformative potential of waste-derived ceramic membranes as a sustainable strategy for water purification, simultaneously addressing waste valorization and clean water scarcity. Ceramic membranes, traditionally fabricated from high-purity inorganic materials, are renowned for their superior chemical resistance, thermal stability, and durability. Recent advances demonstrate that industrial byproducts, such as red mud, coal fly ash, blast furnace slag, coal gangue, and kiln roller waste, can be effectively repurposed into cost-effective, high-performance filtration materials. This paper critically examines fabrication techniques, material properties, and performance metrics of waste-derived ceramic membranes. By transforming industrial waste into functional filtration materials, this approach not only mitigates environmental pollution but also contributes to sustainable water security.","source":"DOAJ","year":2025,"language":"","subjects":["Municipal refuse. Solid wastes"],"doi":"10.3390/waste3030029","url":"https://www.mdpi.com/2813-0391/3/3/29","is_open_access":true,"published_at":"","score":69},{"id":"doaj_10.3390/waste3030022","title":"Compositional Analysis of Municipal Solid Waste from Tshwane Metropolitan Landfill Sites in South Africa for Potential Sustainable Management Strategies","authors":[{"name":"Khanyisile Lepota"},{"name":"Kasturie Premlall"},{"name":"Major Mabuza"}],"abstract":"The modern world has brought extensive socioeconomic and ecological changes. Urbanization in developing nations has significantly increased municipal solid waste, necessitating in-depth understanding of waste composition particularly in developing nations for sustainable management practices. This study aimed to classify and characterize waste while evaluating potential waste management methods. Mixed methods were used to examine landfilled waste from Soshanguve and Hatherley sites in Tshwane Metropolitan, South Africa, using techniques such as Fourier transform infrared spectroscopy, X-ray fluorescence, proximate, and ultimate analysis. Seasonal variations in waste components were analysed over two seasons. The study identified that both sites are predominantly composed of organic waste, accounting for over 42 wt.%, with moisture content of ~50 wt.%, and minimal recyclables (\u003c5 wt.%). Seasonal variations in MSW were significant for glass (\u003c4% increase), organic waste (\u003c5% increase), while plastic decreased by ~7% during spring. The biodegradable waste showed high carbon (\u003e50%) and oxygen (\u003e40%) levels, low ash content (\u003c18%), and calorific values of 15–19 MJ/kg. Biodegradables mainly contained oxides of calcium, silicon, iron (III), and potassium with chemical composition indicating functional groups that emphasize composting and energy recovery benefits. The research provides insights into sustainable waste management, revealing waste composition at Tshwane landfills, aiding informed decision-making for resource usage and environmental conservation.","source":"DOAJ","year":2025,"language":"","subjects":["Municipal refuse. Solid wastes"],"doi":"10.3390/waste3030022","url":"https://www.mdpi.com/2813-0391/3/3/22","is_open_access":true,"published_at":"","score":69},{"id":"doaj_10.3390/waste3030023","title":"Monitoring Hospital Visitors Could Enhance the Prediction of the Plastic Waste Collection Demand and Its Management","authors":[{"name":"Richao Cong"},{"name":"Toru Matsumoto"},{"name":"Atsushi Fujiyama"}],"abstract":"A novel framework is proposed to support the prediction of the plastic waste (PW) collection demand, route optimization, and overall management of PW from individual facilities. Based on electronic manifests from a local recycling company in Fukuoka, Japan, we developed a two-step artificial intelligence (AI)-based approach for predicting the demand for industrial PW (IPW) collection from a hospital. The daily hospital visitor numbers were introduced as a new independent variable in the IPW collection demand prediction. The stability (robustness) of each model was measured by its variance through experiments for two variable groups in four validation months. We found that introducing the visitor variables into IPW collection demand predictions was effective. A high monthly mean accuracy (85.06%) was achieved in predicting the daily IPW collection demand, which exceeded the accuracy of predictions using models without visitor records (84.44%). The stability of the Fine tree model with the highest prediction accuracy for March 2020 was 0.0466 \u003cinline-formula\u003e\u003cmath xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"\u003e\u003csemantics\u003e\u003cmrow\u003e\u003cmo\u003e∓\u003c/mo\u003e\u003c/mrow\u003e\u003c/semantics\u003e\u003c/math\u003e\u003c/inline-formula\u003e 0.0174. Based on the findings of this study, we propose several strategies for waste management: enhancing prediction models, controlling visitor flows, and analyzing working patterns. This study successfully links AI techniques with a human mobility monitoring system (location data) for waste management using MATLAB.","source":"DOAJ","year":2025,"language":"","subjects":["Municipal refuse. Solid wastes"],"doi":"10.3390/waste3030023","url":"https://www.mdpi.com/2813-0391/3/3/23","is_open_access":true,"published_at":"","score":69},{"id":"doaj_10.3390/waste3010010","title":"Comparison of Technologies for Waste Treatment with Energy Recovery: An Overview","authors":[{"name":"Quetzalli Aguilar-Virgen"},{"name":"Paul Taboada-González"}],"abstract":"Currently, the generation of electricity in most countries around the world primarily relies on fossil fuels, which contribute significantly to environmental degradation and climate change. Municipal solid waste (MSW) presents a promising alternative energy source, as various technologies now exist to treat waste and recover its energy. This shift helps to reduce reliance on non-renewable resources and tackles the growing issue of waste management. This article comprehensively reviews three waste-to-energy technologies: anaerobic digestion, gasification and plasma gasification. It covers the fundamental principles behind each technology, their efficiency in energy recovery, the associated costs and their practical applications. Additionally, the article delves into the technical challenges faced in implementing these technologies, such as their scalability, economic feasibility and environmental impacts. By evaluating these technologies, the article aims to provide insights into their potential for contributing to a more sustainable and circular energy system.","source":"DOAJ","year":2025,"language":"","subjects":["Municipal refuse. Solid wastes"],"doi":"10.3390/waste3010010","url":"https://www.mdpi.com/2813-0391/3/1/10","is_open_access":true,"published_at":"","score":69},{"id":"doaj_10.3390/waste3040036","title":"Life Cycle Assessment of Reconditioned Guardrail Beams","authors":[{"name":"Daniel Mattos"},{"name":"Joaquim C. G. Esteves da Silva"},{"name":"Luis Pinto da Silva"}],"abstract":"Steel consumption in the construction sector is one of the main contributors to global greenhouse gas emissions. Therefore, developing processes for the reuse of steel-based products with lower environmental impacts is essential for the sustainability of the construction sector. One example is the reuse of metal road guardrail beams on highways. This study investigated the environmental sustainability of a reconditioning process for such beams, instead of using new guardrails. The environmental impacts of the process were studied and compared with the impacts of the traditional production process using a Life Cycle Assessment (LCA) approach. This study revealed that most of the impacts of the reconditioning process derive from the use of electricity. The comparison with the traditional beam production process revealed that when primary raw materials are replaced by reused raw materials, the environmental impacts associated with the production process decrease significantly. Of the 19 impact indicators assessed, 18 were lower, and 17 had a drop of more than 90 percent compared to the traditional production process. The results indicate that the reconditioning process has the potential to significantly reduce environmental impacts by avoiding the consumption and transportation of primary raw materials, which were identified as the main sources of impacts in the traditional production process, as well as minimizing waste generation.","source":"DOAJ","year":2025,"language":"","subjects":["Municipal refuse. Solid wastes"],"doi":"10.3390/waste3040036","url":"https://www.mdpi.com/2813-0391/3/4/36","is_open_access":true,"published_at":"","score":69},{"id":"arxiv_2507.05180","title":"Electromagnetic energy calibration of the SoLid detector with horizontal muons","authors":[{"name":" SoLid collaboration"}],"abstract":"SoLid is a neutrino experiment at very-short baseline searching for active-to-sterile oscillations of reactor antineutrinos. The detection principle is based on the pairing of two types of solid scintillators: polyvinyl toluene and $^6$Li:ZnS(Ag), which is a new technology used in this field of Physics. In addition to good neutron-gamma discrimination, this setup allows the detector to be highly segmented; the basic detection unit is a 5 cm cube. High segmentation provides numerous advantages including precise localisation of the Inverse Beta Decay (IBD) products, the derivation of an antineutrino energy estimator based on the isolated positron energy, and a powerful background reduction tool that relies on the topological signature of the signal. Finally, the system is read out by a network of WLS fibres coupled to photosensors. A relative electromagnetic calibration is performed with horizontal cosmic muons. This source poses the simplest calibration problem in which a single detection unit is involved. In addition, large muon energy deposits allow us to perform a calibration at the most detailed level (i.e. per fibre) and to accurately define the fraction of energy escaping to neighbouring detection cells. A statistical precision at the sub-percent level is reached. The paper also discusses two methods to calibrate the absolute energy scale. The first method relies on horizontal muons, though the precision is limited to around 10\\% because of the uncertainty in the energy distribution of such muons. A novel, alternative method based on the radioactive AmBe source is proposed. It takes advantage of the electron-positron pair-production process and provides a calibration point at 3.4 MeV (i.e. in the core of the IBD positron spectrum). The paper is concluded with various cross-check including a determination of the energy spectrum of the standard cosmogenic background candle: $^{12}$B.","source":"arXiv","year":2025,"language":"en","subjects":["physics.ins-det","hep-ex"],"doi":"10.1088/1748-0221/20/10/P10022","url":"https://arxiv.org/abs/2507.05180","pdf_url":"https://arxiv.org/pdf/2507.05180","is_open_access":true,"published_at":"2025-07-07T16:35:32Z","score":69},{"id":"arxiv_2502.15827","title":"Explainable Artificial Intelligence Model for Evaluating Shear Strength Parameters of Municipal Solid Waste Across Diverse Compositional Profiles","authors":[{"name":"Parichat Suknark"},{"name":"Sompote Youwaib"},{"name":"Tipok Kitkobsin"},{"name":"Sirintornthep Towprayoon"},{"name":"Chart Chiemchaisri"},{"name":"Komsilp Wangyao"}],"abstract":"Accurate prediction of shear strength parameters in Municipal Solid Waste (MSW) remains a critical challenge in geotechnical engineering due to the heterogeneous nature of waste materials and their temporal evolution through degradation processes. This paper presents a novel explainable artificial intelligence (XAI) framework for evaluating cohesion and friction angle across diverse MSW compositional profiles. The proposed model integrates a multi-layer perceptron architecture with SHAP (SHapley Additive exPlanations) analysis to provide transparent insights into how specific waste components influence strength characteristics. Training data encompassed large-scale direct shear tests across various waste compositions and degradation states. The model demonstrated superior predictive accuracy compared to traditional gradient boosting methods, achieving mean absolute percentage errors of 7.42% and 14.96% for friction angle and cohesion predictions, respectively. Through SHAP analysis, the study revealed that fibrous materials and particle size distribution were primary drivers of shear strength variation, with food waste and plastics showing significant but non-linear effects. The model's explainability component successfully quantified these relationships, enabling evidence-based recommendations for waste management practices. This research bridges the gap between advanced machine learning and geotechnical engineering practice, offering a reliable tool for rapid assessment of MSW mechanical properties while maintaining interpretability for engineering decision-making.","source":"arXiv","year":2025,"language":"en","subjects":["cs.LG","cs.AI"],"url":"https://arxiv.org/abs/2502.15827","pdf_url":"https://arxiv.org/pdf/2502.15827","is_open_access":true,"published_at":"2025-02-20T05:02:55Z","score":69},{"id":"ss_e8e8b54f6c1f78ebcdc756f8d9ededcb5b675720","title":"Overview of municipal solid wastes-derived refuse-derived fuels for cement co-processing","authors":[{"name":"Gertruth Leevhan Tihin"},{"name":"Kim Hung Mo"},{"name":"C. C. Onn"},{"name":"Hwai Chyuan Ong"},{"name":"Y. Taufiq-Yap"},{"name":"Hwei Voon Lee"}],"abstract":"The global municipal solid waste (MSW) generation rate is 2.01 billion metric tonnes annually with an average of 0.74 kg waste/person/day. Approximately 92 % of the MSW originates from organics composition (e","source":"Semantic Scholar","year":2023,"language":"en","subjects":null,"doi":"10.1016/j.aej.2023.10.043","url":"https://www.semanticscholar.org/paper/e8e8b54f6c1f78ebcdc756f8d9ededcb5b675720","pdf_url":"https://doi.org/10.1016/j.aej.2023.10.043","is_open_access":true,"citations":56,"published_at":"","score":68.68},{"id":"crossref_10.17918/00009494","title":"Devolatilization characteristics of refuse derived fuels and selected municipal solid waste components","authors":[{"name":"Keith Joseph Fritsky"}],"abstract":"","source":"CrossRef","year":2024,"language":"en","subjects":null,"doi":"10.17918/00009494","url":"https://doi.org/10.17918/00009494","is_open_access":true,"published_at":"","score":68},{"id":"doaj_10.3390/waste2020011","title":"Optimization of an Industrial Recycling Line: The Effect of Processing Parameters on Mechanical Properties of Recycled Polyethylene (PE) Blends","authors":[{"name":"Alae Lamtai"},{"name":"Said Elkoun"},{"name":"Hniya Kharmoudi"},{"name":"Mathieu Robert"},{"name":"Carl Diez"}],"abstract":"This study concerns the optimization of an industrial recycling line; in other terms, this paper aims to find the optimal processing parameters that allow for a decrease in the loss of stress crack resistance (SCR) using a notched crack ligament stress (NCLS) test and an increase in the gain of the elongation at break, flexural modulus, and Izod impact strength of a polyethylene (PE) blend before and after recycling. The recycling line is composed mainly of a mono- and twin-screw extruder and a filtration system. Hence, the research question is as follows: How can we optimize the recycling process, without compromising the mechanical properties of recycled polyethylene (PE) blends? To answer the research question, Taguchi’s design of experiment and grey relational analysis (GRA) for multiobjective optimization was applied. Experiments were performed according to \u003cinline-formula\u003e\u003cmath xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"\u003e\u003csemantics\u003e\u003cmrow\u003e\u003cmsub\u003e\u003cmrow\u003e\u003cmi\u003eL\u003c/mi\u003e\u003c/mrow\u003e\u003cmrow\u003e\u003cmn\u003e16\u003c/mn\u003e\u003c/mrow\u003e\u003c/msub\u003e\u003c/mrow\u003e\u003c/semantics\u003e\u003c/math\u003e\u003c/inline-formula\u003e standard orthogonal array based on five process parameters: mono-screw design, screw speed of the mono- and twin-screw extruder, melt pump pressure, and filter mesh size. Based on grey relational analysis (GRA), the optimal setting of process parameters was identified, and a barrier screw and a higher screw speed for both extruders were allowed to have optimal mechanical properties. Furthermore, the analysis of variance (ANOVA) indicated that the mono-screw design and screw speed of the mono- and twin-screw extruder significantly impact the mechanical properties of recycled polyethylene (PE) blends.","source":"DOAJ","year":2024,"language":"","subjects":["Municipal refuse. Solid wastes"],"doi":"10.3390/waste2020011","url":"https://www.mdpi.com/2813-0391/2/2/11","is_open_access":true,"published_at":"","score":68},{"id":"doaj_10.3390/waste2030013","title":"Waste-Derived Chars: A Comprehensive Review","authors":[{"name":"Santa Margarida Santos"},{"name":"Margarida Gonçalves"},{"name":"Paulo Brito"},{"name":"Catarina Nobre"}],"abstract":"The production of heterogeneous solid waste, such as municipal solid waste (MSW), construction and demolition waste (CDW), and industrial solid waste (ISW), has increased dramatically in recent decades, and its management is one of today’s biggest concerns. Using waste as a resource to produce value-added materials such as char is one of the most promising strategies for successful and sustainable waste management. Virtually any type of waste, through various thermochemical technologies, including torrefaction, pyrolysis, hydrothermal carbonization, and gasification, can produce char with potential material and energy applications. Pyrolysis is the most widespread technology, and there are more studies on producing and applying waste-derived char using this technology. The properties of waste-derived char seem to be influenced by the conversion technology and conditions, as well as by the composition of the source waste. A literature search indicated that the properties of waste-derived char are highly variable with the composition of the raw material, with carbon content in the range 8–77%, a higher heating value of 2.5–28.4 MJ/kg and a specific surface area of 0.7–12 m\u003csup\u003e2\u003c/sup\u003e/g. Depending on the properties of char derived from waste, there are greater or minor difficulties in applying it, with ash content, heavy metals, and polycyclic aromatic hydrocarbon (PAH) concentrations being some of its limiting properties. Therefore, this review attempts to compile relevant knowledge on the production of waste-derived char, focusing on heterogeneous solid waste, applied technologies, and practical application routes in the real world to create a supply chain, marketing, and use of waste-derived char. Some challenges and prospects for waste-derived char are also highlighted in this study.","source":"DOAJ","year":2024,"language":"","subjects":["Municipal refuse. Solid wastes"],"doi":"10.3390/waste2030013","url":"https://www.mdpi.com/2813-0391/2/3/13","is_open_access":true,"published_at":"","score":68},{"id":"arxiv_2404.03580","title":"The CCube reconstruction algorithm for the SoLid experiment","authors":[{"name":" The SoLid collaboration"}],"abstract":"The SoLid experiment is a very-short-baseline experiment aimed at searching for nuclear reactor-produced active to sterile antineutrino oscillations. The detection principle is based on the pairing of two types of solid scintillators: polyvinyl toluene and $^6$LiF:ZnS(Ag), which is a new technology used in this field of Physics. In addition to good neutron-gamma discrimination, this setup allows the detector to be highly segmented (the basic detection unit is a 5 cm side cube). High segmentation provides numerous advantages, including the precise location of Inverse Beta Decay (IBD) products, the derivation of the considerate antineutrino energy estimator, and a powerful background reduction tool based on the topological signature of the signal. Finally, the system is read out by a network of wavelength-shifting fibres coupled to a photodetector (MPPC). This paper describes the design of the reconstruction algorithm that allows maximum use of the granularity of the detector. The goal of the algorithm is to convert the output of the optical-fibre readout to the list of the detection units from which it originated. This paper provides a performance comparison for three methods and concludes with a choice of the baseline approach for the experiment.","source":"arXiv","year":2024,"language":"en","subjects":["physics.ins-det","hep-ex"],"doi":"10.1016/j.nima.2024.169628","url":"https://arxiv.org/abs/2404.03580","pdf_url":"https://arxiv.org/pdf/2404.03580","is_open_access":true,"published_at":"2024-04-04T16:42:41Z","score":68},{"id":"arxiv_2411.09710","title":"An IoT Based Smart Waste Management System for the Municipality or City Corporations","authors":[{"name":"Laboni Paul"},{"name":"Rahul Deb Mohalder"},{"name":"Kazi Masudul Alam"}],"abstract":"The population of the urban areas is increasing daily, and this migration is causing serious environmental pollution. A larger population is creating pressure on the municipality's waste management and the city corporations of developing countries such as Bangladesh, further threatening human health. New generation technologies, such as the Internet of Things (IoT)-based waste management systems, can help improve this serious issue. IoT-enabled smart dustbins and mobile applications-based interactive management can effectively solve this problem. In this article, we combine these two technologies to offer an acceptable solution to this problem. The proposed waste management model enables smart dustbins to communicate with waste collectors or waste control centers whenever it is necessary. Additionally, city dwellers can use mobile applications to report their observations in their neighborhoods. As a result, both sensors and humans are involved directly in the development loop. We have conducted a detailed survey to study the acceptance of such a system in the community and received some encouraging results.","source":"arXiv","year":2024,"language":"en","subjects":["cs.CY"],"url":"https://arxiv.org/abs/2411.09710","pdf_url":"https://arxiv.org/pdf/2411.09710","is_open_access":true,"published_at":"2024-10-31T04:34:08Z","score":68},{"id":"arxiv_2402.09066","title":"Solid Waste Detection, Monitoring and Mapping in Remote Sensing Images: A Survey","authors":[{"name":"Piero Fraternali"},{"name":"Luca Morandini"},{"name":"Sergio Luis Herrera González"}],"abstract":"The detection and characterization of illegal solid waste disposal sites are essential for environmental protection, particularly for mitigating pollution and health hazards. Improperly managed landfills contaminate soil and groundwater via rainwater infiltration, posing threats to both animals and humans. Traditional landfill identification approaches, such as on-site inspections, are time-consuming and expensive. Remote sensing is a cost-effective solution for the identification and monitoring of solid waste disposal sites that enables broad coverage and repeated acquisitions over time. Earth Observation (EO) satellites, equipped with an array of sensors and imaging capabilities, have been providing high-resolution data for several decades. Researchers proposed specialized techniques that leverage remote sensing imagery to perform a range of tasks such as waste site detection, dumping site monitoring, and assessment of suitable locations for new landfills. This review aims to provide a detailed illustration of the most relevant proposals for the detection and monitoring of solid waste sites by describing and comparing the approaches, the implemented techniques, and the employed data. Furthermore, since the data sources are of the utmost importance for developing an effective solid waste detection model, a comprehensive overview of the satellites and publicly available data sets is presented. Finally, this paper identifies the open issues in the state-of-the-art and discusses the relevant research directions for reducing the costs and improving the effectiveness of novel solid waste detection methods.","source":"arXiv","year":2024,"language":"en","subjects":["cs.CV","cs.AI","cs.LG"],"doi":"10.1016/j.wasman.2024.08.003","url":"https://arxiv.org/abs/2402.09066","pdf_url":"https://arxiv.org/pdf/2402.09066","is_open_access":true,"published_at":"2024-02-14T10:24:04Z","score":68},{"id":"doaj_10.3390/waste1020024","title":"Municipal Solid Waste Collection and Coverage Rates in Sub-Saharan African Countries: A Comprehensive Systematic Review and Meta-Analysis","authors":[{"name":"Muyiwa Lawrence Adedara"},{"name":"Ridwan Taiwo"},{"name":"Hans-Rudolf Bork"}],"abstract":"The annual volume of waste generated in sub-Saharan Africa (SSA) increased from 81 million tonnes to 174 million tonnes per year between 2012 and 2016 and is projected to reach 269 million tonnes in 2030. In 2018, SSA’s municipal solid waste (MSW) collection coverage was estimated at 44%. Concerned that the waste generation rate outweighs the collection pace, we conducted a systematic review of studies on MSW collection to examine the current situation in the region concerning the waste collection and coverage rates and to highlight the impediments to rapid progress in waste collection using the lens of four cities. Findings reveal that, despite the involvement of private waste collectors, collection and coverage rates are still below the desired 100% with backlogs of uncollected waste in public spaces, especially in low-income neighbourhoods where coverage remains abysmally low. This study fortifies the systematic discussion on MSW collection and coverage rates by conducting a meta-analysis. The result of the analysis shows that the waste collection and coverage rates are 65% and 67% in SSA, respectively. Aside from the paucity of data on waste generation rate and characterisation, most available data are incongruent. The review further shows that although several studies have been carried out on waste disposal, waste treatment and recycling in SSA studies directly focused on MSW collection are still few, leaving room for more research in this area. The review offers suggestions on how collection and coverage rates can be increased and equally proposes a strategy for reducing scavenging activities in the region’s unsanitary landfills, given its concomitant health impacts on the scavengers.","source":"DOAJ","year":2023,"language":"","subjects":["Municipal refuse. Solid wastes"],"doi":"10.3390/waste1020024","url":"https://www.mdpi.com/2813-0391/1/2/24","is_open_access":true,"published_at":"","score":67},{"id":"doaj_10.3390/waste1020022","title":"Value Chain Analysis of Rice Industry by Products in a Circular Economy Context: A Review","authors":[{"name":"W. A. M. A. N. Illankoon"},{"name":"Chiara Milanese"},{"name":"Maria Cristina Collivignarelli"},{"name":"Sabrina Sorlini"}],"abstract":"The quantity of organic waste generated by agricultural sectors is continually increasing due to population growth and rising food demand. Rice is the primary consumable food in Asia. However, many stakeholders follow a linear economic model such as the “take–make–waste” concept. This linear model leads to a substantial environmental burden and the destruction of valuable resources without gaining their actual value. Because these by-products can be converted into energy generating and storage materials, and into bio-based products by cascading transformation processes within the circular economy concept, waste should be considered a central material. This review examines the composition of rice straw, bran, and husks, and the procedures involved in manufacturing value-added goods, from these wastes. Moreover, starting with an extensive literature analysis on the rice value chains, this work systematizes and displays a variety of strategies for using these by-products. The future development of agricultural waste management is desirable to capitalize on the multi-functional product by circulating all the by-products in the economy. According to the analysis of relevant research, rice straw has considerable potential as a renewable energy source. However, there is a significant research gap in using rice bran as an energy storage material. Additionally, modified rice husk has increased its promise as an adsorbent in the bio-based water treatment industry. Furthermore, the case study of Sri Lanka revealed that developing countries have a huge potential to value these by-products in various sectors of the economy. Finally, this paper provides suggestions for researchers and policymakers to improve the current agriculture waste management system with the best option and integrated approach for economic sustainability and eco- and environmental solution, considering some case studies to develop sustainable waste management processes.","source":"DOAJ","year":2023,"language":"","subjects":["Municipal refuse. Solid wastes"],"doi":"10.3390/waste1020022","url":"https://www.mdpi.com/2813-0391/1/2/22","is_open_access":true,"published_at":"","score":67},{"id":"doaj_10.3303/CET23100091","title":"Waste-To-Power: Assessment of Refuse-Derived Fuel use in a Gasification Plant in the Brazilian context","authors":[{"name":"Emilio E.X. Guimaraes Filho"},{"name":"Adriano Pinto Mariano"},{"name":"Rubens Maciel Filho"}],"abstract":"In the past 10 years, Brazil’s government has been investing in alternative sources to decrease the high dependence of the electricity grid on hydropower plants, mainly due to a constant decrease in pluviometry levels. A promising fuel in the context of the circular economy is refuse-derived fuel (RDF), which is the combustible fraction of Municipal Solid Wastes. It has high calorific power, low levels of hazardous components, and is a more homogeneous material. Moreover, RDF is an abundant, secure source of fuel with a market price nearly independent of external currencies. As gasification is a common Waste-To-Power (WTP) technology used worldwide, this work evaluated the electricity generation by this technology on a small scale (200 kW), using air as a gasifying agent and gas turbines, and according to Brazilian legal requirements regarding the composition of RDF. The process was simulated in Aspen Plus v8.6 for an RDF with an LHV of 15.9 MJ/kg. Sensitivity analysis on key operational parameters showed that for the representative composition of RDF in Brazil, an ER between 0.1-0.3 would be suitable for a gasification process, resulting in a net electrical efficiency of 22-27%.","source":"DOAJ","year":2023,"language":"","subjects":["Chemical engineering","Computer engineering. Computer hardware"],"doi":"10.3303/CET23100091","url":"https://www.cetjournal.it/index.php/cet/article/view/13413","is_open_access":true,"published_at":"","score":67}],"total":1185802,"page":1,"page_size":20,"sources":["CrossRef","DOAJ","arXiv","Semantic Scholar"],"query":"Municipal refuse. Solid wastes"}