Effective Solid Waste Research Articles

An Optimized Method for BMI in Environmental Projects Based on the Value-Oriented AHP

Effective rural solid waste management (RSWM) is crucial for sustainable rural development, particularly in developing countries, which face dual challenges from economic growth and environmental protection. To build a more sustainable business model for RSWM, this study employs a value proposition analysis approach to systematically analyze the multi-level requirements of various stakeholders involved in the current models of RSWM. It then proposes a novel optimizing approach for RSWM models from the perspective of business model innovation (BMI) by integrating the value proposition (VP) theory with the algorithm of the Analytic Hierarchy Process (AHP) to fill the research gap. In this study, an AHP-based evaluating algorithm is firstly proposed based on the viewpoints of multiple stakeholders’ value propositions. Using this method, four typical pilot RSWM models across China are assessed and ranked, followed by a comprehensive analysis of the results and the incorporation of hierarchical criteria from multiple value dimensions. Building on the analysis of the results, optimization strategies for a novel RSWM model are proposed by constructing a conceptual framework of the business model. In addition, the analysis also indicates that both phases of sorting and collection and transportation are the main factors for fulfilling the overall satisfaction of the RSWM models. Lastly, this paper concludes by summarizing the relevant theoretical and managerial implementations of the proposed approach, providing a foundation for the scientific development of appropriate RSWM models by providing a new idea for BMI especially for environmental management projects that include multiple stakeholders.

Beneath the surface: assessing pollution levels near major solid waste dumpsites in Lagos, Nigeria.

Effective solid waste management is a critical environmental challenge, particularly in rapidly growing Global South countries like Nigeria. This issue is exacerbated by burgeoning populations, lax waste regulations, and the widespread practice of open dumping. The deterioration of soil quality and alteration of water quality are major consequences of open waste dumping, posing significant environmental and public health risks. This study aims to assess the environmental risk and pollution status of soil and water resources near major dumpsites in Lagos. It aims to offer insights that can inform targeted interventions and policy measures not only in Lagos but also in comparable urban settings worldwide. Results indicated that important soil parameters, including TN (11.89-13.83mg/kg), pH (6.45-7.35), sulfate (36.71-39.49mg/kg), phosphate (9.31-14.39mg/kg), and electrical conductivity (342-566 µS/cm), were significantly affected by the dumpsites. Additionally, concentrations of heavy metals varied, with some exceeding permissible limits set by international standards, highlighting the environmental challenges posed by improper waste disposal in urban settings like Lagos. The analyzed parameters for water were mostly within acceptable limits, indicating a lesser impact of the waste dump on water resources. Water samples from boreholes and hand-dug wells near three dumpsites showed that pH, TDS, and heavy metal concentrations were mostly within WHO limits, with borehole water deemed safe for drinking and hand-dug wells suitable for cleaning. To alleviate the environmental impacts of open dumpsites, it is recommended to implement effective waste segregation, recycling programs, controlled landfilling, and investment in waste treatment technologies, along with regular water quality monitoring to prevent further pollution and protect public health. While these measures offer opportunities, they also face significant challenges due to financial and land constraints. Therefore, strong public awareness, infrastructure investment, and government commitment are essential, along with coordinated efforts among the government, private sector, and communities.

Construction of a new emergency management system for potentially viral/viral municipal solid waste in China: Based on the "Beam-Column Structure" framework model

Emergency management of municipal solid waste during public health emergencies is crucial for curbing the spread of viruses and controlling environmental pollution. Most existing solid waste management systems, are designed with a top-down approach, covering multiple industries and sectors. However, these systems often fail to effectively manage potentially viral solid waste in household waste, which impedes effective solid waste management during public health emergencies and increases the risk of viral outbreaks. For example, during the COVID-19 outbreak, negligent management of potentially viral solid waste may result in the formation of a potential transmission chain of COVID-19 virus. Improper waste management may contaminate natural vectors such as water, soil and air, thereby increasing the pathways of human contact with infected vectors and promoting the risk of transmission of viral diseases such as dengue, Zika and hepatitis A. In this study, the applicability and limitations of the Chinese public emergency management system in the disposal of Potentially Viral/Viral Municipal Solid Waste (PVMSW) were analyzed in the breakout of public health crises. To address the need for precise risk control, efficient collaboration among key stakeholders, functional integration crossing multiple management organizations and flexible responses to complex situations, we proposed a PVMSW emergency management system based on a “Beam-Column Structure” model. This system consists of four modules: main traction, organizational leadership, functional articulation and demand matching. Each module is supported by the corresponding safeguards, including multi-level subject responsibilities, multi-scenario organization and implementation, multi-chain process connection and multi-demand control methods. The PVMSW emergency management system proposed in this study contributes to extending the framework of existing waste management protocols and enhancing the timely collection, transportation and disposal of PVMSW in public health crises. It offers valuable insights and guidance on the practices for improving risk awareness and management capacity in China's solid waste emergency response.

Official development finance in solid waste management reveals insufficient resources for tackling plastic pollution: A global analysis of two decades of data

Providing effective solid waste and resources management (SWM) is essential to tackle plastics pollution, reduce carbon emissions and local air pollution from open burning, avoid disease spreading and enable circularity. Official development finance (ODF) is vital in providing relevant infrastructure and capacity development. We developed a novel standardised methodology to analyse OECD ODF data and applied it to 2003–2021, offering insights on the scale, flows and changes in SWM ODF. Despite an 8-fold increase, SWM-focused ODF is still very low, representing just 0.41 % of all ODF; and an order of magnitude less than water and sanitation ODF. Low-income countries received only 8 % of SWM ODF. Total commitments in 2021 were ca. 1.8 Billion USD - significantly short of the >30 Billion USD investment estimated as necessary for substantially reducing plastics pollution. The multi-lateral environmental agreement under negotiation (‘Plastics Treaty) needs to set ambitious targets for ODF and wider international co-operation.

Legal analysis of the interaction between the state and citizens in the context of solid household waste regulation in the Republic of Kazakhstan

In the modern world, the problem of waste management is becoming more urgent and requires society to constantly regulate and adopt effective legislative mechanisms. In the article, the authors consider an important aspect in this area — the interaction between the state and citizens in the context of waste management. The interaction of these entities plays a key role in creating an effective solid waste management system aimed at ensuring environmental safety and sustainable development of society through the analysis of regulatory legal acts, statistical data and good practices in this area. The article discusses several key problems related to solid waste management in Kazakhstan, including a lack of information for citizens (for example, it is not enough to publish materials on websites, they must be updated regularly), unavailability of infrastructure (sorting centers are located far from public accommodation, it is not possible to take garbage to specially designated places), low motivation (due to monthly utility bills for garbage collection, many people consider, that the relevant institutions should be engaged in the collection and sorting of solid household waste or do not understand the danger of consequences for the environment), inconsistencies in legislation have been identified (there are no mechanisms for imposing fines for nonsorting garbage, as abroad) and insufficient financing (if we do not have finances, whatever industry we take, we cannot achieve high results). In order to improve the situation in society, the need to develop mass educational programs related to garbage sorting, develop infrastructure related to the sorting of solid household waste, further reform legislation related to environmental and sustainable development, and focus on strategies to attract investors and funds to this industry was justified. In the article, based on the comprehensive directions adopted by the state to support citizens in the collection and sorting of solid household waste, we came to the conclusion of a settlement of the problem associated with waste recycling. A concrete solution to these problems is manifested in the definition of general directions of development in waste management.

Effects of Policy Environment on Solid Waste Management in Urban Centres in Eastern Uganda

Purpose: This paper explores the policy environments in urban centres in Eastern Uganda and the extent to which they have affected Solid waste management. Methodology: A correlational survey design was used to analyze primary data from 273 employees of urban centres, using, descriptive statistics, Pearson correlation and regression analysis. Findings: Policy environment positively predicted effective Solid waste management (β =.21, p<.05). Though legal, political, cultural and media limitations decreased effectiveness of Solid Waste Management. Unique Contribution to Theory, Policy, and Practice: Urban authorities should implement more responsive governance that promotes effectiveness, responsiveness and participation of residents and in all SWM operations. Urban councils need to innovate strategies to allow a high degree of organized representation, accessibility and openness for all categories of stakeholders. They also need to develop a variety of initiatives to allow all stakeholders in the communities to actively contribute to SWM ideas for the common good of their areas.

Advances in Phosphogypsum Calcination and Decomposition Processes in Circulating Fluidized Beds.

Phosphogypsum (PG) is an industrial hazardous waste product discharged during wet-process phosphoric acid production. Once crystallized, the byproduct PG is filtered and separated from the liquid-phase product and sluiced to the disposal area near the production site for storage, seriously threatening the harmonious symbiosis between humans and nature. Therefore, devising effective solid waste management and cleaner production programs to contain and eliminate PG is of interest to researchers. In this study, the utilization status of PG is comprehensively reviewed, and a feasibility pathway for resourceful recovery of PG is proposed. The key challenges and countermeasures for the high-temperature calcination and decomposition of PG are analyzed and discussed. The visualization analysis based on bibliometrics reveals that the maximum recovery of abundant calcium (as CaO) and sulfur (as SO2) in PG and their utilization for the copreparation of calcium-based materials and sulfuric acid are the most suitable solutions for the large-scale application of PG. Five challenges that restrict the commercial promotion of PG calcination and decomposition processes are perfecting the calcium-sulfur conversion mechanism, establishing a process strengthening strategy, developing value-added technology routes, mastering unit scale-up regularity, and conducting sustainable performance assessment. Industrial applications are expected within 10-15 years.

Exploring the Utilization of Municipal Solid Waste in Sustainable Construction Materials: A Review

Municipal solid waste (MSW) is a growing problem worldwide, as populations increase, and consumption patterns change. It not only causes pollution and health hazards, but it also results in the depletion of resources. Considering this, the utilization of MSW in sustainable construction materials has become a critical area of research. The purpose of this review study is to explore the various ways in which MSW can be utilized in sustainable construction materials such as fired clay bricks, eco-cement, geo-polymer, fly ash (FA), bottom ash (BA), ceramic bricks, municipal solid waste incineration (MSWI), incineration bottom ash (IBA), and coal bottom ash (CBA). This article also helps to understand the properties of waste-based materials and the potential for their use in various applications. This information renders the construction sector to design and develop standard guidelines for the use of waste-based materials. The significance of this review article lies in its potential to transform the construction sector into a more sustainable and resource efficient sector by leveraging the resources that are already available. Integrating waste into construction materials not only averts the waste from landfills and incinerators, but also facilitates the necessity of raw materials and consequently sustains the natural resources. Additionally, the utilization of waste-based building materials can lead to a reduction in the carbon trace of the construction industry, as waste materials often have lower embodied energy compared to traditional building materials. The outcomes of this review will provide valuable insights into the potential of MSW as a resource in sustainable construction and contribute to the development of effective Municipal Solid Waste Management (MSWM) strategies.

Urban digital twin-based solution using geospatial information for solid waste management

With over 2 billion metric tons generated annually, global solid waste production has severe environmental consequences. Although it is not a primary Sustainable Development Goal, effective solid waste management (SWM) is vital for meeting targets 11.6, 12.4, and 12.5. South Africa, in particular, deals with significant SW generation and inadequate collection services. Therefore, this paper presents an Urban Digital Twin (UDT) prototype to tackle these issues, involving stakeholder prioritization, integrating real-time monitoring, citizen participation, waste generation simulations, optimized collection routes, and a control Dashboard where stakeholders’ system requirements were included. The UDT proposes optimized collection routes to reduce fuel use, operational costs, and emissions. The stakeholders’ opinions on the usefulness of the UDT varied due to their backgrounds and skills. Most of them appreciated the Dashboard visualization and the UDT possibilities for resource optimization. The performance of the UDT depends on computer capacity and local or online processing. This UDT prototype sets the foundation for digital twinning in SWM, scalable to different areas, vehicles, and production levels. The proposed approach, citizen involvement, and multi-stakeholder engagement enhance the SWM, benefiting resource-limited countries.

Solid waste management awareness and practices in coastal communities

Effective solid waste management (SWM) is paramount for environmental sustainability and public health, particularly in coastal communities. This cross-sectional descriptive study determines SWM awareness and practices among 399 households in selected coastal barangays in the City of Mati, Davao Oriental, Philippines. Employing a structured four-point Likert-type survey through KoboCollect applications, this study evaluates SWM awareness and practices while examining the impact of socio-demographic factors on these aspects. The results reveal moderate SWM awareness (X̄=2.55) and practices (X̄=2.66) in these coastal communities, indicating a baseline level of environmental consciousness and waste management efforts. However, there was lack of familiarity with legal and regulatory frameworks (X̄=1.97), including the Republic Act 9003 and local ordinances related to SWM. Notable gaps are also identified in SWM practices, mainly in waste segregation (X̄ = 2.55) and avoidance to waste-burning (X̄=2.56). Socio-demographic factors, such as age, educational attainment, household size, and family income, significantly influence SWM awareness and practices. These findings underscore the need for targeted educational campaigns and community engagement strategies to enhance awareness of SWM regulations. Addressing these gaps is necessary for developing effective interventions to promote sustainable waste management practices in these coastal areas, thus protecting marine ecosystems and supporting the well-being of local communities.

Co-pyrolysis behavior of municipal solid waste and food waste residue: A thermogravimetric study to discern synergistic effect

Effective solid waste disposal necessitates suitable combination and clean conversion technologies to maximize resource utilization. Thus, this study investigates the behavior of co-pyrolysis in municipal solid waste (MSW) and food waste (FW) via thermogravimetric analysis, aiming to discern synergistic effects and optimize waste to energy conversion. The impacts of heating rate and blending ratios were evaluated under an inert N2 atmosphere, within a temperature range of 30–900℃, during single and combined pyrolysis processes respectively. Results revealed slight variations in weight loss patterns and thermal decomposition behavior. When heating rate increased from 10 to 30℃.min−1, decomposition process delayed, resulting in higher initial (Ti), peak (TP), and final (Tf) temperatures due to inadequate heat transfer. As food waste increased, mass loss rose and favorable synergistic effect was observed at 20 % FW during medium temperatures, while other blends showed inhibitory effects. The pyrolytic index (D) rose nonlinearly from 6.29 × 10−7 to 7.72 × 10−7 with a higher FW proportion, peaking at 20 % FW, suggesting an optimal MSW and FW mixing ratio. This blend also exhibited the lowest activation energy, indicating a more efficient thermal decomposition process. Those outcomes offer crucial insights for optimizing co-pyrolysis systems and provide essential information for co-disposal of MSW and FW, potentially reducing pollutant emissions and enhancing waste to energy conversion.

Strategies for Enhancing Solid Waste Management Practices in Urban Secondary Schools in Developing Countries

Effective solid waste management in urban secondary schools in developing countries is essential for mitigating environmental and health risks associated with improper waste disposal. This manuscript examines current practices and proposes strategies to enhance solid waste management in these educational settings. Current practices include efforts to reduce packaging materials, promote recycling and composting initiatives, utilize sorting and processing technologies, and implement anaerobic digestion for organic waste treatment. However, challenges such as inadequate infrastructure, limited resources, and insufficient awareness among students and staff hinder effective waste management. This study also investigates current solid waste generation rates specific to urban secondary schools, highlighting variability influenced by factors like population density and consumption patterns. The environmental impact of poor waste management includes pollution of air, soil, and water, as well as habitat. Health concerns arise from disease transmission due to breeding grounds for vectors like mosquitoes in stagnant water and exposure to hazardous chemicals from improperly managed waste. To address these challenges, comprehensive strategies are proposed, encompassing infrastructure development, educational programs integrating waste management into the curriculum, community engagement, and policy advocacy. These strategies aim to promote sustainable practices, improve waste segregation, enhance recycling rates, and reduce the overall environmental footprint of urban secondary schools in developing countries. Implementation of these strategies is crucial for fostering a cleaner, healthier environment and empowering future generations with environmental stewardship values.

Environmental Sustainability and Solid Waste Management Procedures in Bukavu City, Democratic Republic of Congo

Environmental sustainability approaches such as effective solid waste management processes are indispensable for promoting sustainable urban development. Therefore, sustainable approaches to urban solid waste management are essential for every growing city. Bukavu City in Democratic Republic of Congo is a continuously growing city with a correspondingly increasing generation of solid waste which needs effective and sustainable management. This study engaged a mixed method model of both qualitative and quantitative approaches in assessing the perception of respondents on the sustainable aspect of the solid waste management procedures in the city of Bukavu. It administered 400 household questionnaires to residents, but also complemented the retrieved by interviewing key informants about the solid waste management approaches in the city. Results indicate inadequacy in the solid waste management processes in Bukavu City. Therefore, an inclusive and all-encompassing sustainable urban governance is proposed to encourage effective community participation in the management of the city environmental parameters alongside the enshrinement of a sustainable waste and environmental policy.

Impacto e desafios da presença de animais silvestres no saneamento rural

In this article, we will explore the complex interaction between wild animals and rural sanitation, highlighting the different aspects of this relationship and analyzing its implications. Rural sanitation is a crucial area in ensuring the health and well-being of communities living outside urban centers. Encompassing a variety of activities and infrastructure, rural sanitation aims to provide safe access to drinking water, adequate sewage treatment and effective solid waste management. The relationship between rural sanitation and wild animals is close and their interactions can have significant consequences for both public health and the preservation of fauna. While rural sanitation seeks to ensure safe access to drinking water, effective sewage treatment and adequate solid waste management, the presence of wild animals can introduce additional challenges to these initiatives. The influence of wild animals in the context of rural sanitation is a crucial factor to be addressed in promoting public health and environmental sustainability in rural communities. Although these animals perform essential functions in natural ecosystems, their presence can pose significant challenges to sanitation practices, such as contamination of drinking water sources, inadequate management of solid waste and complexity in sewage treatment.

Simultaneous achievement of energy recovery and carbon sequestration through municipal solid waste management: A review

Effective municipal solid waste (MSW) management is a crucial component for sustainable cities, as inefficient waste disposal contributes to the release of about a billion tons of CO2-eq in greenhouse gases (GHG) annually. With escalating global waste generation, there is an untapped opportunity to integrate carbon dioxide removal (CDR) technologies into existing MSW management processes. This review explores current research on utilizing MSW for CDR, emphasizing its potential for both energy generation and carbon sequestration. The investigation covers three waste management practices: landfilling, waste-to-energy (WtE), and biochar production, revealing two paths for carbon sequestration. First, MSW serves as a feedstock in bioenergy with carbon capture and storage (BECCS), acting as a carbon-neutral resource that avoids fossil fuel and energy crop use, reducing GHG emissions and generating value through energy production. Second, direct storage of organic MSW and its derivatives, like biochar, in various carbon sinks allows for extended sequestration, offering a comprehensive approach to address the challenges of waste management and climate change mitigation. Moreover, this review advocates for an extended exploration into several subjects including in-depth analysis of waste, research on MSW-derived biochar recalcitrance across different carbon sinks, and understanding the symbiotic connections with GHG-emitting sectors like agriculture and energy. Finally, this review emphasizes the necessity of conducting life-cycle assessment studies to fully discern the benefits and assess the impacts of any future endeavors exploring the role of MSW in carbon sequestration.

Characteristics and management of municipal solid waste in Uyo, Akwa Ibom state, Nigeria

Increased urbanization and population lead to increased consumption of manufactured goods. This ultimately results in increased production of waste. Identifying its composition is crucial for planning an effective solid waste management strategy. This study assesses the characteristics and composition of the waste generated within the Uyo Capital City Development Area of Akwa Ibom State, Nigeria. This is to aid in developing a scientifically supported waste management pilot system for the state. Direct waste sorting and characterization were conducted on the municipal solid waste arriving at the landfill during the study period. Over 50% of the generated wastes are recyclables and composed of plastics, metals, and paper, while the fraction of organic waste is over 30%. Similarly, the waste generation per capita is 1.34 kg/person/day, while the generation forecast over the next ten years is estimated to increase by approximately 40%. Furthermore, over 9,000 surveys were completed by residents to establish a problem statement about the existing waste collection and disposal system, and possible solutions. Importantly, a majority of survey respondents were willing to source-separate their wastes and supported paying a fee for adequate waste collection. This strongly indicates that an integrated waste management system could be established to generate value from the collected waste. Supplementary revenue can be generated through composting, recycling, and land reclamation.

Waste Glass Upcycling Supported by Alkali Activation: An Overview.

Alkali-activated materials are gaining much interest due to their outstanding performance, including their great resistance to chemical corrosion, good thermal characteristics, and ability to valorise industrial waste materials. Reusing waste glasses in creating alkali-activated materials appears to be a viable option for more effective solid waste utilisation and lower-cost products. However, very little research has been conducted on the suitability of waste glass as a prime precursor for alkali activation. This study examines the reuse of seven different types of waste glasses in the creation of geopolymeric and cementitious concretes as sustainable building materials, focusing in particular on how using waste glasses as the raw material in alkali-activated materials affects the durability, microstructures, hydration products, and fresh and hardened properties in comparison with using traditional raw materials. The impacts of several vital parameters, including the employment of a chemical activator, gel formation, post-fabrication curing procedures, and the distribution of source materials, are carefully considered. This review will offer insight into an in-depth understanding of the manufacturing and performance in promising applications of alkali-activated waste glass in light of future uses. The current study aims to provide a contemporary review of the chemical and structural properties of glasses and the state of research on the utilisation of waste glasses in the creation of alkali-activated materials.

Microplastic Human Dietary Uptake from 1990 to 2018 Grew across 109 Major Developing and Industrialized Countries but Can Be Halved by Plastic Debris Removal.

Microplastics (MPs), plastic particles smaller than 5 mm, are now a growing environmental and public health issue, as they are detected pervasively in freshwater and marine environments, ingested by organisms, and then enter the human body. Industrial development drives this environmental burden caused by MP formation and human uptake by elevating plastic pollution levels and shaping the domestic dietary structure. We map the MP human uptake across 109 global countries on five continents from 1990 to 2018, focusing on the world's major coastlines that are affected by plastic pollution that affects the United Nations' Sustainable Development Goals (SDGs): SDG 6 (Clean Water and Sanitation), SDG 14 (Life Below Water), and SDG 15 (Life on Land). Amid rapid industrial growth, Indonesia tops the global per capita MP dietary intake at 15 g monthly. In Asian, African, and American countries, including China and the United States, airborne and dietary MP uptake increased over 6-fold from 1990 to 2018. Eradicating 90% of global aquatic plastic debris can help decrease MP uptake by more than 48% in Southeast Asian countries that peak MP uptake. To reduce MP uptake and potential public health risks, governments in developing and industrialized countries in Asia, Europe, Africa, and North and South America should incentivize the removal of free plastic debris from freshwater and saltwater environments through advanced water treatment and effective solid waste management practices.

Enhancing Solid Waste Management Practices in Soroti Municipality: A Comprehensive Study

This study undertakes a comprehensive examination of solid waste management practices in Soroti Municipality, employing a cross-sectional survey design to gather data from a diverse sample of 314 respondents.Utilizing a combination of quantitative and qualitative methods, the research explores various aspects of waste management, including collection, transportation, disposal, and treatment techniques. Sampling techniques such as basic random sampling and purposeful sampling were employed to ensure representation across demographic groups and occupational sectors. Data collection methods included interviews, questionnaires, and observations, allowing for a multifaceted analysis of the subject matter. The study presents detailed findings on respondents' demographic characteristics, including gender distribution, age distribution, occupation, marital status, and education level, providing insights into the diverse perspectives within the community. Additionally, the research examines respondents' attitudes towards solid waste management practices, revealing both strengths and weaknesses in current approaches. Analysis of the data highlights several key challenges facing Soroti Municipality in solid waste management, including limited resources, inadequate infrastructure, and a lack of community engagement. Despite these challenges, the study identifies potential solutions and opportunities for improvement. Recommendations include raising public awareness, implementing 4R strategies (reduce, reuse, recycle, recover), encouraging stakeholder participation, and investing in infrastructure and technology. By addressing these challenges and implementing recommended strategies, Soroti Municipality can work towards more sustainable and effective solid waste management practices. This not only enhances the quality of life for its residents but also contributes to environmental conservation and sustainable development in the region. Keywords: Municipal, Solid waste, Waste management, Soroti Municipality, Waste Disposal, Reform, Survey

Solidification/stabilization and optimization of municipal solid waste incineration fly ash with aluminosilicate solid wastes

Alkali-activation is an effective municipal solid waste incineration fly ash (MSWIFA) solidification/stabilization (S/S) technology. However, the characteristics of calcium-rich silica-poor aluminum phase in MSWIFA easily cause the structural instability and contamination of alkali activated MSWIFA S/S bodies. Therefore, the aluminosilicate solid wastes are used in this work to optimize the immobilization and structural properties. Results showed that incorporation of aluminosilicate solid wastes significantly improved the compressive strength and heavy metals pollution toxicity of MSWIFA S/S bodies. Compared to alkali activated MSWIFA, the compressive strength of S/S bodies with addition of coal fly ash, silica fume and granulated blast furnace slag improved by 31.0%, 47.6% and 50.8% when the curing time was 28 days, respectively. Leachability of Pb, Zn and Cd in these alkali activated MSWIFA S/S bodies was far below the threshold value specified in Standard GB16889. Aluminosilicate solid wastes provided abundant Si/Al structural units, and some new phases such as ettringite(AFt, 3CaO⋅Al2O3⋅3CaSO4⋅32H2O), calcium sulfoaluminate hydrate (3CaO⋅Al2O3⋅CaSO4⋅12H2O) and Friedel's salt (CaO⋅Al2O3⋅CaCl2⋅10H2O) can be detected in S/S matrix with aluminosilicate solid wastes, along comes increased the amount of the amorphous phases. Lower Ca/Si molar ratio tended to form the network structure gel similar to tobermorite with higher polymerization degree. Meanwhile, the silica tetrahedron of the gels changed from the oligomerization state like island to the hyperomerization state like chain, layer network or three-dimensional structure, and average molecular chain length increased. These findings provide theoretical basis for structural properties optimization and resource utilization of MSWIFA S/S matrices.