Sustainable Solid Waste Management Research Articles

Evaluating strategies for sustainable recovery and recycling of plastic waste in the West Bank of Palestine: The perspectives of plastic companies.

The plastic waste (PW) makes up the second largest portion of the total solid waste generated in Palestine. Hence, it is important to consider proper PW management mainly through recovery and recycling and implement appropriate strategies. This study aims to identify and evaluate the social, legal, technological, environmental, and economic strategies that can positively motivate plastic manufacturing and/or recycling companies to recover and recycle PW. A structured questionnaire was developed to address 30 plastic companies in the West Bank. The results indicate that 80% of the companies supported the social strategies that implement community awareness programs. Almost 92% of the companies agreed with legal strategies which enforce legislations to support PW recovery and recycling practices. As for technological strategies, 76% of the companies endorsed the application of modern technologies for PW management. However, only 68% of the companies accepted the environmental strategies which promote life cycle assessment and environmental awareness programs and adopted the use of recycled plastic materials in manufacturing from the context of the economic and market strategies. Palestinians are invited to implement PW recovery and recycling practices to better utilize available resources, achieve sustainable management of solid waste, and promote environmental health.

Geospatial Distribution of Waste Dumpsites for Sustainable Solid Waste Management In Abuja Municipal Area Council (AMAC), Federal Capital Territory, Nigeria

Geospatial Distribution of Waste Dumpsites for Sustainable Solid Waste Management In Abuja Municipal Area Council (AMAC), Federal Capital Territory, Nigeria

Swine slaughterhouse biowaste: an environmental sustainability assessment of composting, amended soil quality, and phytotoxicity

ABSTRACT In this article, the environmental sustainability of a circular economy concept applied to the management of biowaste was studied. To achieve this goal, the composting performance, compost-amended soil health, and phytotoxicity were assessed in the case of management of solid waste from a small swine slaughterhouse. Microorganisms present in a similar composting process were used as inoculums to improve the efficiency of composting. Addition of the inoculum promoted a faster and more efficient composting process than composting without the inoculum. The physical, chemical, and microbiological characteristics of soil were considered to be improved after compost application. Phytotoxicity tests in soils with and without compost amendment showed that a soil–compost mixture (90:10 and 70:30 mass ratios) was not phytotoxic to the plant species Sorghum saccharatum and Lepidium sativum, and that soil with compost showed higher plant biomass growth than that without compost amendment. The triple bottom line methodology used in this study can help in the assessment of circular economy activity in relation to the environmentally sustainable management of solid waste generated in small swine slaughterhouses.

Effect of different environmental conditions on the growth and development of Black Soldier Fly Larvae and its utilization in solid waste management and pollution mitigation

The current waste treatment techniques in developing countries do not meet the standards of appropriate waste management systems. Poor waste management leads to serious environmental issues at the local and global levels, for which an effective and sustainable waste disposal system is in urgent need. Due to its proven waste degradation and biotransformation capabilities, the Black Soldier Fly (BSF) provides a potential and economical alternative to recycling biological waste. The current study investigated the interactions between municipal and organic waste with the help of Black Soldier Fly Larvae (BSFL) as a growing medium for substrate culture by comparing the physicochemical parameters of waste before and after BSFL treatment of municipal and organic waste. The study results revealed that BSFL can improve the quality of the final product and promote the degradation of organic waste, although BSFL cannot effectively directly degrade municipal solid waste, it can reduce municipal solid waste by efficiently degrading organic waste. The optimal environmental conditions for BSFL breeding and growth was summarized in this study, and the environmental conditions of four seasons of four representative cities in different location of Pakistan were collected and analyzed. The most suitable cities for the development of the BSFL waste treatment system were first inferred, which makes basic research for developing an economical and feasible waste treatment system in Pakistan. A comprehensive legal framework regarding integrated MSW management systems should be introduced and implemented in Pakistan, including that local municipal authorities should collect the waste collection fee. • Interactions between municipal and organic waste by Black Soldier Fly Larvae. • Exploitation of BSFL in sustainable management of solid waste in Pakistan. • Increasing or decreasing temperature affects the different stages of BSF. • Summer season is ideal for the growth and development of BSFL. • Organic waste treatment with BSFL works best between 75 and 85% relative humidity. • Environmental conditions evaluation on the BSF growth and waste management efficiency.

Waste-to-energy and electricity generation: Analysis for Saudi Arabia

Saudi Arabia is a developing country experiencing both rapid economic growth and vast urbanization. These have led to waste disposal problems. Therefore, waste-to-energy (WTE) processes, a source of renewable energy, are expected to play an increasingly important role in sustainable management of municipal solid waste (MSW). The purpose of this paper is to estimate the energy produced from the WTE method, to assist policymakers to develop a strategy that enhances the environmental quality, through reducing energy generation in the electricity sector. This study begins by presenting Saudi's current MSW management situation and its waste disposal process as well as the major challenges associated with Saudi's WTE incineration before discussing the economic and environmental benefits of the WTE method. Since waste can be used to produce energy for electricity and heat, this study estimated energy generated from WTE technology through employing estimated baseline scenario and future scenarios. Findings indicated that future scenarios are better than the business-as-usual scenario. The paper concludes that the WTE method can produce energy for electricity generation which in turn reduces the volume and the production of greenhouse gas (GHG) emissions produced from MSW. The waste-to energy approach with supportive policies could lead the country to achieve sustainable development.

Options for sustainable solid waste management in a tourist city in a developing country

A study was undertaken to develop options for sustainable integrated solid waste management for a tourist city in Vietnam. The generation and characterisation of tourism waste were based on a sampling survey of Hoi An city (HAC). Problems and challenges of a tourism waste management system were indicated using material flow analysis. Five scenarios were developed for the tourism sector of the city based on current solid waste management practice (SWMP), a consensus of stakeholders, the suitability of waste management systems and the contribution of the government. In two of the scenarios, waste reduction was 6.5 times higher and recyclables recovered was 3.3–4.2 times greater than that in two of the minimalist scenarios. Furthermore, the former scenarios showed more efficiency in treatment, optimal economy and minimum greenhouse gas emissions. The study indicated the advantages and challenges of each scenario and identified an optimal model for SWMP for the tourism industry of HAC. A framework for gradually developing a sustainable tourism waste management system was proposed, potentially applicable to any tourist city in a developing country.

Circular economy approach for sustainable solid waste management: A developing economy perspective.

The notion of circular economy (CE) strengthens the approach to sustainable development (SD). It is perceived that the adoption of CE can unlock half a trillion dollars of economic value in India by the year 2030. However, embracing the CE concept can be considered a panacea to the existing issues associated with solid waste management (SWM). The proposed study explores current waste management practices and assesses the inadequacy to infer the CE as a solution for successful waste management practices. The work provides an overview of SWM in India and emphasizes the inclusion of CE in the Indian SWM sector. The comprehensive review depicts existing, and emerging waste management approaches to form a CE by processing the waste efficiently and fuelling an SD movement. The cradle-to-cradle approach in CE, national solid waste compliances/legislation, key initiatives taken by the Governments, and the influence of industry and legal framework on CE were also discussed. The work will facilitate policy and decision-makers to include CE in the Indian SWM sector.

Performance assessment of the co-gasification for sustainable management of municipal solid waste: Moroccan Case

In the quest of virtuous energy system, clean energy production poses important environmental, social, and financial challenges. Among the potentially useful energy carriers, hydrogen emerges as a serious alternative to fossil fuels. Hydrogen is a clean energy vector whose use is likely to undergo significant development in the medium and long term. This article describes the current situation of municipal solid waste generation and management in Morocco. Additionally, a co-gasification plant model for hydrogen production from municipal solid waste and biomass blends was developed in Aspen Plus. A parametric analysis was carried out to study the effect of various parameters such as the temperature of gasification and the steam to feedstock ratio on syngas composition. The main findings show an increase in hydrogen molar fractions for higher temperatures (optimal values being achieved for ∼750 °C) and steam to feedstock ratios ≥1.2. The present model of the co-gasification plant could be further improved by adding a water–gas-shift reactor. This process intensification technique can contribute to the production of sustainable alternatives to the actual predominant fossil-based fuels.

Evaluation of solid biomedical waste management practices in six health facilities in southern Benin

Introduction: Health care generates biomedical waste that present risks to humans and the environment if poorly managed. The objective of this study was to assess the management practices of solid biomedical waste in southern Benin. Methods: This was a descriptive cross-sectional study conducted in six health facilities. The study included 12 administrative agents selected by reasoned choice and 431 health care agents selected by convenience. The data were collected by questionnaire, interview, and observation. They concerned variables related to the production, the practice of managing, knowledge of the impact of solid biomedical waste on the environment and health, training and protection of personnel. Data analysis was done with R 4.5.0 software. Quantitative variables were described by median and interquartile range. Proportions were compared with the chi-square test or that of Fisher at the threshold of 0.05. Results: The health facilities did not have solid biomedical waste management database. Sorting was not systematic in 59.5 %. Final storage locations did not meet standards. Almost one in four health workers (24.4 %) were injured by biomedical waste. Overall, 45.8 % of the staff had been trained at least once on biomedical waste management. 61 % of the staff surveyed were vaccinated, hepatitis B (41.3 %), tetanus (32.9 %). Conclusion: In view of the results, it is necessary to ensure the on ongoing awareness and training of medical staff in the sorting and packaging of biomedical waste and to set up an efficient and sustainable solid biomedical waste management system with effective monitoring mechanisms.

Studi Timbulan, Komposisi dan Karakteristik Sampah Institusi di UPN Veteran Yogyakarta

UPN “Veteran” Yogyakarta does not apply a sustainable solid waste management system. Waste is only carried out by storing, collecting, and transporting to TPA Piyungan. The purpose of this study was to determine the generation, composition and characteristics of waste and to provide recommendations for sustainable waste management strategies on the UPNVY campus. The method of measuring waste generation and composition refers to SNI 19-3964-1994. Waste characteristics were analyzed by proximate test and ultimate test. The results of the survey and measurements showed that the waste generation at UPNVY was 135.45 kg/day covering Campus I Condong catur at 96.66 kg/day and Campus II Babarsari at 37.79 kg/day. The composition of waste consists of organic waste (24.840%), paper (23.499%), soft plastic (7.450%), hard plastic (5.673%), plastic bag (9.129%), metal (1.294%), glass (1.392%), hazardous waste (0.512%), other waste (9.289%), and residue (16.922%). The proximate test showed that the highest moisture content was in food waste, the highest volatile content and calorific value were found in hard plastic. Meanwhile, the lowest ash content in soft plastic and the lowest fixed Carbon content was owned by plastic bag. For the ultimate test, plastic waste has the highest C and H content. The recommended sustainable waste management strategies are waste reduction and sortation; provision of sorted trash cans, processing of organic waste into compost; and construction of 3R TPS.

INTEGRATION OF ENVIRONMENTAL PRACTICES AND AWARENESS IN PROMOTING SUSTAINABLE SOLID WASTE MANAGEMENT PRACTICES AMONG PUBLIC ELEMENTARY SCHOOLS

The purpose of this study was to find the relationship between environmental practices and awareness in promoting sustainable solid waste management practices among public elementary school teachers at Sto. Tomas North District for the school year 2021-2022. The study employed descriptive research design. In one instance, descriptive-correlational design was used to describe and understand the variables under study. The researcher opted to use descriptive survey method to determine if the environmental knowledge and awareness is significantly related to solid waste management practices of the teachers. A survey questionnaire was used as the main tool in collecting data for the study. Weighted mean and standard deviation were utilized to assess the solid waste management practices of teachers. To test significant relationship between variables of the study, Pearson Product-Moment Correlation Coefficient was used. Findings revealed that there is a very strong association or correlation between these variables. Therefore, the findings may mean that the null hypothesis is accepted and affirmed that there is a significant relationship between Environmental Practices and Awareness and Solid Waste Management Practices of Public Elementary Teachers. However, integration of these knowledge still has constraints.

Challenges and Opportunities Associated with Solid Waste Management in Chililabombwe District, Zambia

The management of municipal solid waste (MSW) is a serious challenge facing major environmental challenges associated with waste generation and inadequate waste collection, transport, treatment, and disposal. The paper wishes to highlight on the current waste management practices by the district, also highlighting on challenges and opportunities in order to remedy the current problems and how best to address future opportunities for a better sustainable solid waste management in the district. The district has no capacity to overcome the amplification of the increased generated waste with the increased population, and this has impacted on the environment and public health. The current district aims to move away from the reliance of the open dumpsite that does not offer any environmental protection to a solid waste system that is of more useful that will retain useful resources within the economic zone through recycling. Waste sorting and segregation at the source that provides separation of the recyclable materials is actually key to waste management. Most of the extracted materials from the disposal residuals require proper landfill management with waste sorting facilities. Obviously, challenges and barriers are significant so are the opportunities in the district. Shortage of qualified manpower, lack of technologies, and proper solid waste equipment to deliver improved waste management systems remain the authority concern. Landfill plays a significant role in energy generation if well managed, thus poses a greater opportunity for local empowerment and job creation for the youths that need further study.

Study of environmental condition and sustainable solid waste management in Gurugram City

Environmental problem is a global concern. It doesn't stop anywhere. All over the world, people are being educated about how to protect the environment. One of the main reasons why the environment is getting worse is because of how solid waste is handled. In many parts of the world, it is a major source of pollution and disease. There is no long-term solution to environmental problems. The only thing we can do is reduce and control the amount of waste we make by being aware and doing the right things. The most important thing in this situation is to take care of the trash in the right way. Waste management is a science that looks at how to get rid of trash, how it affects the environment, how it affects society, and how much it costs. So the purpose of the present research is to study the impact of solid waste has on the environment in the study area and to study the environmental condition and what kind of pollution problem arises in the Gurugram city.

Sustainable solid waste management in Yemen: environmental, social aspects, and challenges

Sustainable solid waste management in Yemen: environmental, social aspects, and challenges

Optimal Waste-to-Energy Strategy Assisted by Fuzzy MCDM Model for Sustainable Solid Waste Management

In Vietnam, rapid population and economic growth are responsible for the recent increase in solid waste. Energy production from waste is now becoming an effective solution around the world, especially in Vietnam, to solve environmental challenges while contributing to the country’s sustainable energy production. Waste-to-energy production has become a solution to the municipal solid waste problem, which is projected to increase by 10–16%. In this study, the author proposed a fuzzy MCDM model to assess and select a solid-waste-to-energy plant location in Vietnam. In the first stage, the fuzzy analytic hierarchy process (FAHP) technique is utilized to analyze the relative weight of the primary and secondary evaluation elements, and a combined compromise solution (CoCoSo) model is used to rank the candidates in the final stage. This is the first solid-waste-to-energy plant location evaluation and selection model used in a renewable energy project in Vietnam based on expert interviews and a literature review. This study’s contribution can be a significant guide in analyzing and selecting appropriate locations for solid-waste-to-energy projects, as well as for decision makers and investors in other renewable energy projects in Vietnam and throughout the world.

Challenges and opportunities for sustainable solid waste management in private nature reserves: The case of Sabi Sand Wildtuin, South Africa

The mismanagement of waste in protected areas may lead to significant and irreversible environmental, economic and social impacts, such as land degradation, resource depletion, surface and groundwater pollution, loss of biodiversity and impacts on the aesthetic value of these areas. This paper aims to identify the challenges and opportunities for sustainable solid waste management in privately protected areas, given the limited research conducted on this topic. A case study approach was followed, which focused on the Sabi Sand Wildtuin, a private nature reserve (PNR) in South Africa. Interviews were conducted with 30 participants, which included representatives from the management authority, commercial lodges, non-commercial properties and a waste service provider. Several challenges have been identified by interviewees. Behaviour was the most frequently mentioned challenge, where interviewees raised concerns about negative attitudes, unwillingness to implement waste management measures and a possible lack of support. Other frequently mentioned challenges included foreseen difficulties due to the size and location of the reserve and concerns around funding of waste management measures, especially given the financial implications of coronavirus disease 2019 (COVID-19) travel and tourism restrictions. The most frequently identified opportunities included creating jobs and improving livelihoods, providing assurance and transparency of what happens to waste ‘beyond the gate’ and improving awareness, knowledge and skills related to waste management. To optimise the opportunities towards sustainable solid waste management, PNRs should focus on aligning their strategic direction to achieve legal compliance and support community initiatives to establish waste-related infrastructure and services that cannot be implemented within the reserve.Conservation implications: The pursuit of waste-related opportunities within privately protected areas could enhance the implementation of sustainable solid waste management in PNRs, whilst also contributing to pollution prevention, community upliftment and other secondary benefits, which could ultimately result in increased conservation efforts.

Knowledge, behavior, and drivers of residents’ willingness to pay for a sustainable solid waste collection and management system in Mymensingh City, Bangladesh

Knowledge, behavior, and drivers of residents’ willingness to pay for a sustainable solid waste collection and management system in Mymensingh City, Bangladesh

SORTING, LOGISTICS AND SECONDARY USE OF SOLID HOUSEHOLD WASTE OF UKRAINE

The article is devoted to the study of the issues of efficient management of solid household waste (SHW) in Ukraine, which provides the improvement of its sorting and logistics. The composition of solid household waste in the context of world countries by the level of development, geographical principle in comparison with Ukraine was studied. It is substantiated that despite the differences in the composition of waste in our and European countries, its calorific value is approximately the same, which determines the possibility of energy use. The current state of solid household waste sorting in Ukraine is analyzed, it is determined that today it is mainly sorted into mixed (wet) and dry, there is a separate sorting of some types of waste: glass, paper, metal, plastic. A logical scheme of the existing separate sorting and management of household waste in Ukraine was built, which showed the differences from the best European practices in this field. It is proposed to improve the solid household waste sorting system through the introduction of eight types of containers, which will allow to obtain more homogeneous flows of standard waste and facilitate its further useful use. It is proposed to introduce the compensation payments for sorted waste. The logistics of solid household waste has been improved through proposals for the introduction of vacuum sorting stations for waste transportation. Their advantages are environmental friendliness, automation that minimizes the human factor, high speed of transportation. The management of household and similar waste in Ukraine has been studied and it has been determined that the main direction of its further use is disposal in specially equipped landfills (more than 40%), and energy use by incineration does not reach 2%. The characteristics of waste recycling in the countries of the world are given, which has shown significant achievements in the fuller use of waste potential as a valuable secondary raw material. The ecological, energy, social and economic effects of the introduction of a sustainable solid waste management system in Ukraine are substantiated.

STRATEGI PENGELOLAAN LIMBAH PADAT DALAM MENDUKUNG KEBERLANJUTAN GREEN CAMPUS: SEBUAH PENDEKATAN AHP

The purpose of this study is to find the most sustainable solid waste management scenario for universities. It is based on the Green Campus concept which aims to eliminate waste inefficiencies and use energy sources for ordinary electricity needs, as well as proper disposal management and efficient recycling programs. The Analytic Hierarchy Process approach is used in this study to produce strategic decisions in solid waste management. A pairwise comparison questionnaire was distributed to four experts from universities to give an assessment of the questionnaire. The results show that the alternative of recycling technology innovation is the choice of experts with a weight of 0.429 which is based on technology criteria with a weight of 0.477 and the sub-criteria of Perception and participation of campus residents with a weight of 0.509. Furthermore, the overall assessment of the experts has a consistency value below 0.1. This research could be a starting point in developing a Green Campus sustainability strategy through solid waste management.

Technologies for valorization of municipal solid wastes

AbstractMunicipal solid waste (MSW) consists of the waste obtained from various sources like households, industries, municipalities and other commercial areas. Common landfill and incineration strategies are insufficient to process the waste generated on daily basis. Municipal solid waste contains significant amounts of organic carbon (50–60%) that has great potential for the production of fuels and value‐added products. This review discusses the composition of the organic fraction of municipal solid waste (OFMSW) and waste processing strategies that enable organic carbon recovery compared with conventional methods. Changes in the composition of MSW worldwide and the factors influencing it in various regions are discussed in this study. The processing of diverse OFMSW through thermochemical methods such as incineration, gasification, pyrolysis, torrefaction and hydrothermal carbonization is discussed here with the results of densification or gasification of the organic carbon, enabling its chemical transformation. Additionally, the combined methods, where OFMSW is pre‐treated followed by enzymatic hydrolysis for the conversion of OFMSW to monomeric sugars have also been described. Globally, to ensure sustainable solid waste management and efficient carbon recycling, combined methodologies seem more appropriate. The study also attempts to list the different attempts across the globe that highlight this concept of the transformation of waste into materials and chemicals, improving its commercial value. The commercial success of such OFMSW processing attempts can provide momentum for establishing sustainable treatment technologies and reaping profits, laying the groundwork for a strong and complete carbon‐recycling environment and circular carbon‐based economy. © 2022 Society of Chemical Industry and John Wiley & Sons, Ltd