Final Waste Research Articles

Prospect for Fine and Coarse Coal Waste Deployment for a Constructed Technosol and Eragrostis Tef Growth

The aim of this study was to evaluate soil properties and Eragrostis tef (teff) growth on Technosols produced from coarse and fine coal wastes from Moatize Mine, Mozambique. The experiment was performed in triplicate in 30 L containers filled with different substrate conditions, composed of fine coal waste, coarse coal waste, agricultural soil, and sewage sludge as an organic matter source. The soil analyses included bulk density, available water capacity, permeability, and fertility. Plant growth was monitored for biomass production and plant tissue composition. All the substrates presented a good available water capacity and a proper drainage condition. Regarding soil fertility, there were shortages of potassium and boron in the substrates composed exclusively of coal wastes, which was reflected in the composition of the plant tissue. Even so, plant growth was statistically equivalent to the control in all conditions, except for the substrate produced exclusively with fine coal waste and sewage sludge, which presented a better performance. Technosols are an alternative for reducing the final mine waste volume, and Eragrostis tef is used as a means for land use after the mining process, with social gains, and as a tool in an ecological process for restoring coal mining sites.

Integrated municipal solid waste management using ArcGIS tools: A case of akaki-kality sub-city, addis ababa, ethiopia.

This study aimed to optimize the solid waste collection and transportation system using ArcGIS Network Analyst and location-allocation tools. The generated solid waste was characterized by proximate analysis. The generation rate and composition were determined according to standard methods. The average solid waste generation rates for households, commercial sites, institutions, and recreational places were 0.48kg/c/day, 15.03kg/fac/day, 9.32kg/fac/day, and 22.8kg/fac/day, respectively. The estimated total generation rate of the sub-city is 207,004.03kg/day and 712.13 m3/day as discarded base. Composition analysis revealed that food waste is the major component of municipal solid waste, with estimated weight and volume of 134,696.08kg and 299.46 m3, respectively. Proximate analysis indicated that food and textile wastes have relatively high moisture content and fixed carbon. Candidate pre-collection bin allocations were optimized based on factors such as road network, distribution of solid waste generators, and existing temporary dumping sites, resulting in 1052 potential bin locations. Transfer station allocation was optimized by considering land use-land cover, slope, and geology. Twelve transfer routes and four transport routes were established to efficiently serve the bins and final waste destinations. In conclusion, the study demonstrates that ArcGIS Network Analyst and location-allocation tools can effectively optimize the municipal solid waste collection and transportation system, providing a robust framework for improving waste management efficiency. However, further research is recommended to validate these findings through field application.

Analysis of technologies of disposal and use fibrous paper skopje

The article examines the current state and trends in the development of waste management technologies in the pulp and paper industry, with the aim of analyzing the reasons that hinder, and sometimes make impossible, the effective utilization of fibrous waste paper to obtain environmentally safe materials and raw products. The production of paper products is one of the most capital-intensive and energy-intensive industries, second only to the metallurgical and chemical industries, with a correspondingly large amount of waste and a negative impact on the environment. The technological processes of scum formation as a result of waste paper recycling and paper production wastewater treatment are considered and analyzed. Skopje is the final waste of the pulp and paper industry, which is formed at various stages of the paper and cardboard manufacturing process, therefore it is deposited in landfills. Multiton volumes of skopje require significant areas for its storage. Despite the low IV hazard class, this leads to serious environmental problems, as the leachate from the skopje landfill pollutes surface and ground water. Technologies of possible disposal and reuse of skopje, known in domestic and foreign literature, are described and analyzed. The technology of reusing scoop is determined by its relatively environmentally safe physicochemical composition. The indicated fibrous, mineral, extractive constituents and lignin determine the possibility of reusing skopje, mainly for the construction industry. The perspective of the complex use of multi-tonnage waste – slag, sludge, ash and slag of thermal power plants as plasticizers, fillers, binders and binding components in the production of building structural and heat-insulating materials is named. Technologies for using scapula as a filler in the production of building materials require a high content of inorganic compounds and a minimum amount of organic compounds. A high content of fibrous particles and a low content of mineral substances is necessary when using scapula in the production of composite wood composite materials. The specified technological limitations ensure only small amounts of skopje use in the production of building materials. The effectiveness of using skopje as an additive to the asphalt mixture for road construction and production of fuel materials is determined by the economic costs of transportation and dewatering. It is noted that the high humidity, ash content and low calorific value of scum are the main reason for the lack of effective technologies for its utilization. The solution to the problem is the use of low-energy technologies through the direct use of osprey as a component of the soil mixture for biological reclamation of man-made landscapes. The article substantiates an environmentally safe and socially favourable option for using a soil substrate based on osprey. It is emphasised that the humidity and organic viscosity of the plant origin of osprey form the agrotechnical properties of soil substrates of prolonged action, which ensure optimal technological efficiency of phytomelioration of degraded lands. The reclaimed areas will reduce greenhouse gas emissions from the soil, prevent wind and water erosion, and ensure the environmental safety of natural and man-made ecosystems.

Affordable and sustainable clean energy generation potentials from municipal dumpsites: case study of Oke saje dumpsite, Abeokuta, Ogun State, Nigeria

The operating method of final waste disposal in Oke saje area of Abeokuta is direct open dumping and burning. This study was conducted at a major dumpsite in Abeokuta, to investigate the existing waste management systems, characterize solid wastes generated, and estimate for the sustainable energy generation potentials. Exploratory study design was adopted for a period of six (6) months, May to November, 2023. Seven (7) randomly selected plots of 1sq.m were located on Oke saje dumpsite, from where solid wastes were collected from top to the depth of 300 mm. Waste components were weighed to obtain the weight-based characterizations. Sorting into major waste components was in accordance with College and University Recycling Council (CURC) grouping system with modifications to accommodate peculiar waste stream generated in Oke saje dumpsite. Waste samples were taken to laboratory to carry our necessary physical, chemical and proximate analyses. Estimated total solid waste generation in Oke- saje, dumpsite was 3,718,832.03 kg (3718.83 tonnes). Estimated energy content of solid wastes was 46370.47MJ. This implies that there is possibility of electricity generation up to 12.881MWh from daily steam production. An integrated solid waste management concept adoptable to Oke- saje, dumpsite, has zero waste concept of about 46 % waste material recyclable (from composting, bio-fuel production and recyclables), with electricity generating potential of 5.923 KWh and 56 % energy recovery (from electricity generation, incineration-derived ash and residual ash for landfilling or soil enhancement), of about 6.956 KWh. Considering the high material recyclability, reusability and energy recovery potentials from solid wastes generated from Oke saje dumpsite, it was recommended that the Ogun State Waste Management Authority adopts affordable, sustainable and integrated waste management options of waste minimization and sorting from the source, reuse, recycling, and incineration of solid waste generated from the large communities within the state.

INOVASI TEKNOLOGI MENUJU ZERO WASTE PENANGANAN DARURAT SAMPAH DI KOTA MAGELANG

The problem of domestic waste has become quite serious, considering the volume and rate of accumulation are increasing with the increasing population and economic activities. The Final Waste Disposal Site (TPSA) in Magelang City is currently overloaded because Magelang City only has one Final Waste Disposal Site (TPSA). If strategic and appropriate steps are not taken to reduce the waste entering the Banyu Urip Final Waste Disposal Site (TPSA), then within a maximum of 1-2 years the Banyu Urip Final Waste Disposal Site (TPSA) will not be able to receive waste shipments from Magelang City. The incomplete resolution of waste in Magelang City is due to the unavailability of waste processing technology that produces zero waste and is environmentally friendly. The policy analysis evaluation approach used is the Grid Analysis (Matrix Analysis) method. The results of the study recommend the application of waste processing machine technology by the Environmental Service. This mechanization technology is expected to be able to replace the previous method (open dumping and landfill) with waste mechanization with the advantages of being relatively odorless, relatively no social conflict and saving land. The mechanization technology consists of waste sorting machines, plastic shredding machines, organic waste pulping machines, conveyors and incinerators.

Penentuan Rute Pengambilan Sampah Dengan Menggunakan Metode Clarke & Wright Algorithm Saving Heuristic Di Perusahaan Daerah Kebersihan Untuk Wilayah Bandung Timur

Trash problem in Capital City like Bandung City is became concern problem especially by West Java Government that relocating final waste disposal site from Sarimukti located in Padalarang Bandung Barat to final waste disposal site Legoknangka located in East Bandung, but final waste disposal site Legoknangka still in under construction, so the Government of Bandung City made temporary final waste disposal site located in Gedebage on Bandung City, because the distance between final waste disposal site Sarimukti and temporary final waste disposal site are far enough so need to be an assessement for disposal trucking route especially disposal truck various Dump Truck with maximum capacity 12 m³. The purpose for this research is to know, assessment, and analyze result from formation for route with VRP model (Vehicle Routing Problem) which is one of the methods are Saving Heuristic, the main focus on this methods is a big Savings distance, so that the result of distance is the shortest route but still concern maximum truck capacity. The result of this research is change route for truck disposal in East Bandung Area become 3 trucks with total travel distance 98.945 meters or ± 35.000 meters/truck from depot/pool to final waste disposal site, with this occur a savings from total trucks, total travel distance. Where is East Bandung Area usually needs 7 Dump Trucks for service this area, with only 1 truck serve 1-2 temporary dumping ground for travel distance 40.000 meters/truck for serve from temporary dumping ground this time not included travel distance and time travelling for truck to final waste disposal site.

Metal-Encapsulated, Polymer-Containing Halide Salt Composites as Potential Long-Term Hosts for Radioiodine: Evaluating Halmets, Polyhalmets, and Halcermets.

This paper presents composite waste form concepts for radioiodine immobilization including halide-metal (halmet) composites, polymer-halide-metal (polyhalmet) composites, and halide-ceramic-metal (halcermet) composites with data from experiments to evaluate these ideas. The encapsulant metal of choice for the pellets was Bi0, and a cold-press-and-sinter approach was used for creating the pellets. A polymer (i.e., polyacrylonitrile or PAN) phase was included in some composite forms because this porous, passive polymer is used as a host matrix for active chemisorption-based getters. Metals of Ag0, Bi0, and Cu0 were separately embedded into PAN beads, which were loaded with iodine in static tests. Included are details of experiments where PAN removal from the iodine-loaded composite beads was evaluated to reduce the overall volume of the final waste requiring immobilization and to improve the thermal stability of the final composite form. While these experiments demonstrate new concepts for radioiodine immobilization, more work is needed to fully understand the limitations of these approaches and further optimizations are needed before implementation at larger scales is feasible.

Effect of alumina source on the retention of rhenium during low-activity waste feed conversion to glass

Volatility of technetium poses a challenge during the vitrification of low-activity waste (LAW) feed to glass. Although this is typically resolved through recycle loops, this can lead to other problems, such as sulfate phase formation. Thus, ensuring high single-pass retention of Tc (or Re, its non-radioactive surrogate) is required for enabling high waste-loading formulations. In our previous study, we observed significantly higher Re retention in final waste glass produced from a LAW melter feed containing gibbsite as the alumina source compared to a compositionally similar feed containing kyanite. To investigate this effect, we prepared representative LAW melter feeds with kyanite and gibbsite as alumina sources and measured the Re retention in the produced glasses. We found that the Re retention is consistently higher in glasses produced with gibbsite, by up to 20 %. We attribute this result to the formation of nanocrystalline alumina in melter feeds containing gibbsite. Possessing a high surface area, nanocrystalline alumina can adsorb the perrhenate-containing molten salt, increasing the rate at which Re is incorporated into the alkali-alumino-boro-silicate glass-forming melt. In addition, we demonstrate that replacing kyanite with gibbsite in LAW melter feeds has no adverse effects on their processing during vitrification.

Analysis of the Development of Karyasari Village, Rengasdengklok District in Realizing the Sustainable Development Goals of the Village

One of the sustainable development functions that is a priority program for the alocation of Village Funds in 2021 is Village SDGs. This research aims to know how SDGs are implemented in the development of Karyasari village. The theory in this research is the theory of Fonseca and Carvalho, who argue that sustainability can only be achieved through fulfilling the three SDGs requirements, namely balanced development in the social, economic and environmental fields. A data triangulation approach was used in this qualitative research to obtain data by combining several existing sources and types of data. The research results show that Karyasari Village has implemented 16 of the 18 SDGs goals. Judging from the implementation of the SDGs, Karyasari village applies 5 economic dimensions, 5 social dimensions and 6 environmental dimensions. For several SDGs goals, Karyasari Village has reasons why SDGs No. 12 concerning environmentally conscious village consumption and production has not been implemented because Karyasari village does not have a final waste bin. The village remains consistent in implementing the SDGs that have been achieved and the SDGs that have not been achieved, namely No. 12 concerning Environmentally Conscious Village Consumption and Production. It would be better for the village to be able to build a good waste management system if necessary and collaborate with partners.

Investigating the Operational Feasibility of Waste Management at Integrated Waste Management Sites in Balikpapan City

Referring to the Balikpapan City Medium-Term Development Plan for 2021-2026, the percentage of waste transported to the Final Waste Processing Site (FWPS) is 75.45%, which is higher than the percentage of waste management. As of now, there are 2 Integrated Waste Management Sites (IWMS) in Balikpapan, namely MRF and ITF. Based on data from 2019, waste management at MRF decreased by 51.14%. Meanwhile, ITF only utilizes 25.98% - 31.31% of total incoming waste, with the remainder being sent to Manggar FWPS. This decline in performance is also related to the deteriorating condition of approximately 62% of waste management infrastructure in Balikpapan, so evaluation of the operational aspects of waste management becomes a crucial factor in addressing this issue. In addition, the ideal condition of waste management according to standards serves as the main indicator in assessing the performance of waste management. This research aims to evaluate operational aspects of waste management at Balikpapan IWMS by applicable regulations. Analysis methods used are mass balance analysis and operational performance analysis. Research findings show that waste management at IWMS Balikpapan City can reduce the volume of waste in Balikpapan City. However, the operational performance of MRF did not meet established standards, especially in terms of waste removal and processing systems, with a score of 19. On the other hand, ITF is considered sufficient by provisions of PUPR Minister Regulation Number 03 of 2013 and Indonesian National Standard 19-2454-2002 with a score of 23.

Shallow groundwater quality around the area Kaligending final processing site in Kebumen Regency, Central Java Province

Abstract The location of the Kaligending final Processing site is in Kraminan, Kaligending Village, Karangsambung District, Kebumen Regency which is the place for final waste processing. The Kaligending final processing site which is located in the hills can have an environmental impact on the area located below it. One of the impacts is the condition of groundwater in the area. The purpose of this study is to determine the condition and quality of shallow groundwater in the area. To find out groundwater conditions especially position and the pattern of shallow groundwater flow in the area is measured in the shallow ground water level which is then made a map of shallow groundwater and shallow groundwater flow direction patterns, while groundwater quality is measured by electrical conductivity and total dissolve solid (TDS) shallow groundwater in several wells. The results of the map pattern of shallow groundwater flow directions in the area come from the east and northeast, groundwater quality based on electrical conductivity is still suitable for use. The quality of shallow groundwater in residents’ wells in the Kraminan area is based on total dissolved solids, there are 4 wells that exceed the upper limit of drinking water quality standards (wells 3, 4, 5 and 6) which are located close to the Krembeng River

KEPUASAN PELAKSAAAN COMMUNITY DEVELOPMENT INDONESIA POWER SURALAYA: BAGENDUNG ESENSI

PLN Indonesia Power Suralaya PGU is an example of a public organizational entity in the form of state representation in corporate form. As a corporation, this company is not only profit-oriented but also thinks about the benefits for society. In carrying out corporate actions, PT PLN Indonesia Suralaya PGU will definitely interact with community activities that have the potential for conflict if not maintained properly. These activities can be in harmony with community activities, but it is also undeniable that they are very likely to cause conflict with the community. The community development work program is structured based on opportunities and challenges, problems that exist in the area where problem empowerment is located. Bagendung Village, Cilegon City, was chosen because there is already a Final Waste Disposal Site (TPSA) in collaboration between the Cilegon City government and PT PLN Indonesia Power Suralaya PGU which is managed as Kampeng Energi because Bagendung TPSA is processed into electrical energy. TPSA Sampah Bagendung manages waste into fuel for the Suralaya Steam Power Plant (PLTU). In conclusion, the majority of the Bagendung Essence Program is able to have an impact on increasing welfare for beneficiaries and provides positive benefits for very capable beneficiaries as much as 90 percent, only 10 percent answered that they are able and none at all answered that they are less capable or unable to provide positive benefits for recipients. benefit.

Analysis of Waste Management and Greenhouse Gas Emission Reduction (Case Study: Adiwiyata School SMPN 18 Surabaya and Non-Adiwiyata School SMPN 31 Surabaya)

In Surabaya, a city program named "Perilaku dan Berbudaya Lingkungan Hidup di Sekolah" (PBLHS), or Environmental Behavior and Culture in Schools, specifically targets Adiwiyata schools to promote sustainable practices. However, not all schools participate in this initiative. Non-Adiwiyata schools typically send their waste to the Final Waste Processing Site (TPA), which exacerbates the load on these facilities and contributes to increased greenhouse gas (GHG) emissions. This study aims to compare waste management and GHG reduction efforts between Adiwiyata and non-Adiwiyata schools in Surabaya. We conducted sampling at one Adiwiyata school and one non-Adiwiyata school, analyzing waste generation and management strategies using the SNI 19-3964-1994 method. Our findings reveal that Adiwiyata schools generate less waste, with an average of 0.0103 kg/person/day, compared to 0.0155 kg/person/day at non-Adiwiyata schools. Furthermore, the organic waste composition was significantly lower in Adiwiyata schools at 2.08%, versus 33% in non-Adiwiyata schools. Methane (CH4) emissions from Adiwiyata schools were also lower, measuring 0.123 Gg/year, as opposed to 0.405 Gg/year from non-Adiwiyata schools. These disparities in waste output, organic waste composition, and GHG emissions are significantly influenced by the environmental knowledge, attitudes, and practices within the school communities.

Utilizing Industrial Sludge Ash in Brick Manufacturing and Quality Improvement.

This research demonstrates changes in the behaviors and characteristics of sintered bricks while using industrial sludge ash (ISA) and waste glass (WG) as a replacement for clay in the brick manufacturing procedure. Owing to the limited amount of available land in Taiwan, it is becoming increasingly difficult to locate suitable sites for sanitary landfills, which is a common final disposal method for ash that is produced during thermal treatment in sludge factories. To meet the urgent need for land, the final waste disposal must convert this waste into a new resource. This research investigated the feasibility of using general industrial sludge ash waste, due to its abundance and high potential as a raw material in producing bricks. The result of this study shows that the bricks made from ISA and WG under a certain mixture proportion (ISA50%/WG40%/Clay10%) had excellent industrial potentials, such as compressive strength and water absorption rate. However, owing to the wide variety of components from different sources of ISA, the mixture proportion might vary accordingly. This study also analyzed the incineration index, proportion design, and process improvement, as well as investigating the possibility of increasing the total use of sludge ash as a resource. This study shows the potentials of utilizing wastes as raw materials in industrial manufacturing procedures. Therefore, more wastes can be tested and turned into resources in the future.

Incorporation of spent ion exchange resin simulate into cement composites

Solidification/Stabilization (S/S) of spent radioactive ion exchange resins (IER) is one of many critical problems facing developing nuclear industries all over the world. Immobilization technology using Ordinary Portland Cement (OPC) as an inert matrix, has been widely applied for the solidification/stabilization of spent ion exchange resin. In this study incorporation of simulated IER into cement matrix and characterization of the final solid waste form (FWF) had been searched practically in laboratory scale experiments. Factors that can affect the properties of the FWF including the water/cement (w/c) ratios and the resin concentration were studied systematically. Mechanical integrities, thermal analysis, and mass loss during hardening and curing for 28 days were evaluated for FWF hard blocks. Scanning Electron Microscope (SEM) and X-Ray Diffraction (X-RD) examinations were performed to investigate the internal architecture of the FWF. Moreover, the heat of cement hydration reactions was recorded during the IER solidification process. Based on the experimental results obtained, it is worth to state that according to its acceptable characteristics and advantages of cement as an inert matrix, it can be suggested safely for the immobilization of untreated spent radioactive ion exchange resins.

Facing the Garbage Piles: Implementation of Domestic Waste Management by Village-Owned Enterprises

As part of efforts towards Indonesia's Free of Waste, Bojonegoro Regency implemented the Garbage Emergency program in 2020. This program includes strategies for waste utilization and determining the location of Final Waste Disposal Sites. Through collaboration between the Village Government and Village-Owned Enterprises (BUMDesa), innovations have been created to address household waste issues. The domestic waste management program managed by BUMDesa targets the direct participation of households in waste sorting and storage according to its classification, with the hope of reducing the accumulation of waste that pollutes the environment. This research aimed to analyze the implementation of domestic waste management by Village-Owned Enterprises. The method used in this research employed a qualitative approach with a case study design. The research focused on six indicators: policy standards and objectives, resources, characteristics of implementing agents, inter-organizational communication, socio-economic-political conditions, and the disposition of implementers, with data collection techniques including interviews, literature review, and documentation. Findings from this research indicated that the implementation of waste management programs in Sambiroto Village involves cooperation between the village government, Village-Owned Enterprises, and residents. This program aimed to reduce the volume of waste originating from households by actively involving community participation. However, the implementation of this program faces challenges, including limited resources and a lack of financial support from the community. The village government needed to improve communication and provide training for the community and personnel involved in the program. Additionally, providing subsidies or assistance to low-income communities can also enhance participation in waste management. With the hope that this program can have a positive impact on environmental cleanliness and increase public awareness of the importance of sustainable waste management.

Tourism Development: Economic Interests and Environmental Problems (Yogyakarta Tourism Destinations Study, Indonesia)

Tourism is an important part of economic development efforts in various countries. as well as being an economic driver who plays an important role in advancing economic life. However, tourism also harms the environment, especially the waste problem. This study aims to examine the negative impact of tourism on waste generation at tourist destinations in the city of Yogyakarta, especially in the tourist destination Malioboro and its surroundings. The research was conducted using qualitative methods, with a case study approach. The results revealed that tourism in the city of Yogyakarta plays an important role in driving the economic life of the community and government in various service, trade, industrial/crafts, and agricultural sectors. Related to the emergence of environmental problems, the government has anticipated maintaining cleanliness in the city of Yogyakarta. The part that is still a problem related to waste disposal is the Final Waste Disposal Area. Suggestions that can be proposed are efforts to increase the budget for waste handling; application of more advanced technology, and continuing to support the development of eco-friendly tourism.

An assessment of the consumption and disposal of medications home use

In the current scenario, the market society, an economic model consolidated in many parts of the world, faces some social and environmental challenges, such as the solid waste disposal and treatment of different residues generated daily, especially in big cities. In Brazil, 4,540 municipalities provided medical waste collection services, and more than a third (36.2%) sent the MS to landfills, dumps, and septic ditches. This issue faced by municipalities is challenging as they try to promote less damaging management that impacts the environment due to urban demography and fragile socio-environmental conditions. Action as reverse logistics is a strategy that enables the return of after-sales and post-consumption waste to the business environment and the productive sector, promoting the circular economy, the recovery of waste, the life cycle of products, decrease in the use of materials, reduction of environmental impacts, compliance with current regulations and non-contamination of the environment. The assessment of unusual medications and population knowledge allows drawing an overview of the disposal of uncommon medications for home use by an electronic questionnaire addressing different questions, referring to the identification of the user's profile, various forms of consumption, storage, and disposal of medication waste, and knowledge about the local regulation. Most medications consumed by the population are antibiotics, analgesics, fever reducers, and pain relief without medical recommendations, not used to seeing the expiration date, and not reading the drug leaflet. The assessment population could only pay a little for the additional tax for final medication waste disposal. Most of the participants disposed of the unusual medications in the household garbage. Finally, the reverse logistics implementation of medication waste in Brazil will be a significant challenge for decreasing the environmental impacts and pollution because of the culture of the local population.

Kebijakan Pengelolaan Sampah Pada TPST3R-GMJB (Tempat Pengelolaan Sampah Terpadu Reduce-Reuse-Recyle Gerakan Muara Jawa Bersih) di Kecamatan Muara Jawa Kabupaten Kutai Kartanegara

This research aims to determine waste management at TPST3R-GMJB in Muara Jawa District, Kutai Kartanegara Regency and factors that inhibit waste management at TPST3R-GMJB in Muara Jawa District, Kutai Kartanegara Regency. This research is a study that produces descriptive data in the form of written words of people and behaviors observed systematically and accurately, directed at the background and the individual holistically (intact) without making comparisons with other variables. Based on the analysis of the results of Waste Management research at TPST3R-GMJB in Muara Jawa District, Kutai Kartanegara Regency, it can be concluded that waste collection activities carried out by TPST3R-GMJB in Muara Java District have not been optimal, waste transportation activities at TPST3R-GMJB in Muara Java District have not run well. The main cause is the supporting factors of transportation activities, namely garbage transport vehicles in poor condition (often damaged), Waste processing activities at TPST3R-GMJB in Muara Jawa District have not been maximized, because most machines / equipment in processing waste have not been supported by better equipment (modern) and the volume produced is also not optimal, the final waste disposal activities carried out by TPST3R-GMJB in Muara Jawa District have not been said to be good, and inhibiting factors for waste management at TPST3R-GMJB in Muara Jawa District, among others, namely waste collection, waste transportation. TPST3R-GMJB garbage transport fleet in the form of dump trucks in poor condition (often damaged), waste processing. The waste processing equipment (machines) at TPST3R-GMJB are still mostly simple equipment and the support of electricity supply to operate the equipment is also not optimal, Final Disposal. Financing and technology that are less supportive in handling waste in landfills (TPA).

Immobilization of radioactive sulphate waste simulate in polymer–cement composite based on recycled expanded polystyrene foam: evaluation of the final waste form resistance for Cs-134 and Co-60 leachability

The present study investigates to incorporate spiked sulfate solution simulate into polymer–cement composite (PCC) based on recycled expanded polystyrene foam. The main aim is to convert the waste stream into leach resistance solid forms able to slow down or even to retard the back release of hazardous radionuclides to the surrounding. Effective parameters e.g. leachant medium, temperature, radioactivity contents, leachant volumes and radionuclides speciation versus the leaching time were studied. The incremental leach rate (Rn, cm/day) and the leach index (Lx) were evaluated for the final waste form after 145 days. The experimental results revealed that the Lx for the all variances can fulfil the waste acceptance criteria for the disposal facility and are above the threshold value of 6. Moreover, leach rate percentages for Cs-134 and Co-60 were not exceeding 2%. The acquired data, based on lab leaching experiments, can recommend the developed PCC under consideration for solidification of radioactive sulphate waste stream safely.