Recycling Companies Research Articles

Unveiling mercury exposure sources in e-waste recycling with biomonitoring - A Portuguese case study

Abstract Background Mercury (Hg), a global pollutant, poses risks to both human and environmental health. The management and recycling of electrical and electronic waste (e-waste) is recognized as having the potential to promote workers’ exposure to this pollutant. Human biomonitoring (HBM) is a tool that can be used to evaluate exposure and monitor the health of workers. The objective of this study was to characterize exposure of workers from an e-waste recycling company and to analyze the relevance that HBM holds in the detailed characterization of exposure. Methods A cross-sectional observational study was conducted using data collected within the framework of the European Human Biomonitoring Initiative (HBM4EU). Data from environmental monitoring (settled dust) and biological monitoring (urine and hair) of 30 workers potentially exposed to Hg were analyzed in comparison with 12 unexposed workers from other occupational settings (controls). Results Exposed workers did not exhibit significantly higher concentrations of Hg in urine when compared to control workers. We found a significantly positive correlation between the concentration of Hg in urine (ρ = 0.688; p ≤ 0.001) and hair (ρ = 0.470; p ≤ 0.01) and the consumption of fish and shellfish. Conclusions Diet appears to be the most significant source of Hg in this context. These results suggest the importance of information and dietary habits to prevent mercury exposure. HBM stands out as an essential tool for identifying the most relevant exposure sources and risk management measures for workers and the general population. Key messages • Diet appears to be the most significant Hg source in workers from a Portuguese e-waste company. • HBM stands out as essential for identifying the most relevant exposure sources and risk management.

Implementing an entrepreneurial mindset through activities in recycling course

There is an urgent need to connect theoretical knowledge acquired in engineering courses with practical, real-world applications to promote knowledge sustainability. To address this need, an entrepreneurially minded learning (EML) approach was implemented in an elective course titled Recycling of Advanced Engineering Materials. This approach enables students to explore the phases and interactions involved in product development by formulating and communicating requirements and solutions that consider both societal benefits and economic constraints, reflecting the entrepreneurial mindset behaviors outlined by the Kern Entrepreneurial Engineering Network (KEEN). The EML activities included hands-on recycling experiences and visits to local recycling companies, emphasizing motivation and overcoming conceptual learning barriers while enhancing students' entrepreneurial knowledge and reasoning skills. This study analyzed students' performance in exams, class discussions, and term projects alongside their perceptions of the engagement activities. Survey questions were designed to assess the impact of these activities on the development of students' entrepreneurial knowledge and abilities, utilizing a Likert scale for responses. Results from survey questions indicated that the EML approach significantly enhanced students' entrepreneurial knowledge and reasoning abilities, motivating them to engage in critical thinking and self-directed learning to address real-world challenges.

Odour characterisation of recycled HDPE in different washing and processing processes

The waste of polymeric materials in our society is increasing year after year, generating a serious pollution problem. One way to deal with this waste problem is to recycle and reuse these materials. This process of recovery of used plastic materials aims to minimise their impact on the environment and reduce the energy consumption required for the generation of new consumer products. Recycling companies that recover these plastic materials must take into account some aspects such as transparency and colour, cleanliness, size, odour and sorting. One of the major disadvantages in accepting these recycled materials in the production processes is their odour, which in some cases causes the rejection of materials with comparable mechanical characteristics. High-density polyethylene, HDPE, is one of the polymeric wastes generated in the packaging industry. The aim of this work is to eliminate the bad odour of HDPE from waste collection plants for application in the recovery and reuse industry. HDPE supplied by a recycling company was washed, characterised and processed, and the odour was analysed by gas chromatography at each stage and by olfactory panel. In view of the results, it was observed that the washing processes managed to reduce the odour. Likewise, the processing of this waste by extrusion and injection managed to further reduce this effect, even eliminating some of the components responsible for odour by treating the samples with acetone and then extruding and injecting these samples. These results have a direct application in the packaging industry with significant shares of recycled material.

Methylene Blue and Rhodamine B Dyes' Efficient Removal Using Biocarbons Developed from Waste.

The preparation of biocarbons from cellulose fibres utilised in the production of baby nappy mats (sourced from Feniks Recycling company, Poland) for the removal of methylene blue and rhodamine B dyes has been documented. A Brunauer, Emmett and Teller analysis revealed a surface area within the range of 384 to 450 m2/g. The objective of this study was to investigate the removal efficiency of dyes from aqueous solutions by biocarbons, with a particular focus on the influence of various parameters, including pH, dye concentration, adsorbent dosage, shaking speed, contact time, and temperature. The maximum adsorption capacity of the dyes onto the biocarbons was found to be 85 mg/g for methylene blue and 48 mg/g for rhodamine B, respectively. The Langmuir equation proved to be the most suitable for interpreting the sorption of organic dyes. The adsorption process was found to exhibit a chemisorption mechanism, effectively mirroring the pseudo-second-order kinetics. Furthermore, the adsorption of dyes was observed to be endothermic (the enthalpy change was positive, 9.1-62.6 kJ/mol) and spontaneous under the tested operating conditions. The findings of this study indicate that biocarbons represent a cost-effective option for the removal of methylene blue and rhodamine B. The adsorption method was observed to be an effective and straightforward approach for the removal of these dyes. The results of the Boehm titration analysis and zero charge point value indicated that the synthesised biomaterials exhibited a slightly basic surface character.

How digital platforms can be leveraged to enable closed material loops – An example of the steel supply chain

Increasing demands for limited natural resources accelerate rethinking their usage and processing. A focal point of interest lies in the steel industry, given its substantial contribution to emissions and the notable attribute of steel being fully recyclable. Hence, closing material loops to ensure the preservation of material value and supply security is of substantial importance. Yet, until today, supply chains are still characterized by interrupted information streams that prevent circular material flows. Digital platforms are attributed to overcoming these shortcomings due to their ability to moderate ecosystems and render technological connectivity. However, industrial companies lack knowledge of how digital platforms can be used to design closed material loops. Therefore, this paper is built on a longitudinal case study of a joint venture between a recycling and steel melting plant company aiming at creating a digital platform to close the material flow of steel. Six design priorities, structured along the three core building blocks of digital platform ecosystems and the four core dimensions of collective action theory (CAT), have been derived to guide managers in designing digital platforms for the CE-specific context. This study presently contributes to understanding the relationship between digital platforms and CE.

Sustainable Strategies for Crystalline Solar Cell Recycling: A Review on Recycling Techniques, Companies, and Environmental Impact Analysis

Solar PV is gaining increasing importance in the worldwide energy industry. Consequently, the global expansion of crystalline photovoltaic power plants has resulted in a rise in PV waste generation. However, disposing of PV waste is challenging and can pose harmful chemical effects on the environment. Therefore, developing technologies for recycling crystalline silicon solar modules is imperative to improve process efficiency, economics, recovery, and recycling rates. This review offers a comprehensive analysis of PV waste management, specifically focusing on crystalline solar cell recycling. The classification of PV recycling companies based on various components, including solar panels, PV glass, aluminum frames, silicon solar cells, junction boxes, plastic, back sheets, and cables, is explored. Additionally, the survey includes an in-depth literature review concentrating on chemical treatment for crystalline solar cell recycling. Furthermore, this study provides constructive suggestions for PV power plants on how to promote solar cell recycling at the end of their life cycles, thereby reducing their environmental impact. Moreover, the techno-economic and environmental dimensions of solar cell recycling techniques are investigated in detail. Overall, this review offers valuable insights into the challenges and opportunities associated with crystalline solar cell recycling, emphasizing the importance of economically feasible and environmentally sustainable PV waste management solutions in the constantly evolving solar energy market.

Assessing the circularity status of waste management among manufacturing, waste management, and recycling companies in Kigali, Rwanda

A high quantity of waste is generated from industrial activities by manufacturers across metropolitan cities compared to smaller cities with fewer industrial activities. Adopting Circular Economy principles in waste management has the potential for sustainable waste management to reduce the quantity of waste at dumpsites and harmful emissions from wastes. The study was conducted to assess circularity status and challenges for attaining higher circularity by Kigali’s manufacturing, waste collection, and waste recycling companies using the 10-R framework. The study also sought to build estimates for industrial solid waste quantity and methane emissions for the next 10 years (2020–2030) in Rwanda. A mixed method approach was utilized where primary data was collected from manufacturing, waste collection, and waste recycling companies using a validated questionnaire and an in-depth interview guide. Thematic, descriptive analysis and First Order Decay methods were used to analyze the qualitative, quantitative, and secondary data. Results show that adopting the 10-R principles of circular economy was low and varies across manufacturing, waste collection and recycling companies. There were instances of high adoption of R3-Reuse and R8-Recycle with a mean score of 7.17 and 7.21 among manufacturing companies. R7-Repurpose (8.80) recorded a high adoption rate among waste collection companies and a medium level of adoption for R7-Repurpose (3.50) and R9-Recover (3.00) among recycling companies. The overall low adoption toward attaining circularity was attributed to various economic, institutional, infrastructural, operational, attitudinal, and technological challenges. In 2030, it is projected that 922 Gg of industrial waste will be deposited in solid waste disposal sites in Rwanda; with an estimated methane emission of 157 Gg Carbon dioxide equivalence. It was recommended among others, that human resource capacity development should be prioritized to drive the adoption of the 10-R principles across manufacturing, waste collection, and waste recycling companies in Kigali, which can reduce the quantity of wastes that ends at dumpsites and methane emissions that contribute significantly to global warming.

Reverse Supply Chain Modeling at XYZ Recycling Company

Attention to the reverse supply chain is increasing due to the increasing value of products and technologies at the end of the supply chain as well as the direct impact of new environmental legislation. Design strategies for reverse supply chains remain relatively unexplored and underdeveloped. Meanwhile, measuring supply chain performance has also become important as understanding, collaboration and integration have increased among supply chain members. It also helps companies to target profitable market segments or identify areas for improvement. Reverse supply chains are seen as one way to increase profits for companies. Company XYZ is a company that operates in recycling products from surrounding shops. This paper will focus on measuring reverse supply chain performance at XYZ recycling company. A simple general framework of the company will be presented as well as its mathematical model. This simple general model is considered applicable by small and medium businesses to optimize their reverse supply chain systems

Enterprise development through networks: a case study of PETRECOZIM and the beverages sector networks in Zimbabwe

Inter-organisational networks contribute towards attainment of a Circular Economy (CE). Through effective collaboration, enterprise development can be achieved. In Zimbabwe, plastic waste, mainly PET is a major challenge in the quest for attaining sustainable development of the country. This research focuses on the role of collaboration between bottlers, manufacturers and brand owners in facilitating enterprise development in the context of waste recycling. A case study research design was undertaken of a PET Recycling Company commonly known as PETRECOZIM, which is located on the southern part of Harare, the capital city of Zimbabwe. Interviews were undertaken with key informants and experts in the field of waste management. Document review was carried out on key documentation from the recycling centre in order to assess activities, business models, barriers, challenges, opportunities and core aspects of the operations of PETRECOZIM. The research concludes that organisations can collaborate as private sector players in a particular economic sector such as beverages, manufacturing and brand owners; to form enterprises that can thrive and undertake recycling activities. The research concludes that networks can facilitate enterprise development and self-regulation. It can also be concluded that in certain contexts, networks can operate without external interference and yield significant benefits in circular economy thematic areas such as waste management. The research also concludes that the business model of recycling networks requires blended financing models beyond network partners of one sector, to ensure sustainability. Key barriers identified include lack of participation in the network by organisations which operate in the bottling sector, but are not part of the PETRECOZIM initiative. These firms also lack technical capacity for advanced PET recycling as well as lack of financing to complete recycling stages beyond bales and flakes. The research also concludes that in order to attain circularity and “close the loop”, PETRECOZIM should recycle the waste further into usable products. The Case study also concludes that, without the support of the network members who finance the enterprise PETRECOZIM, its survival is not guaranteed beyond the network. It is recommended that, networks develop models which are sustainable beyond network support, in order to ensure long-term viability.

Design of a compact wastewater treatment and isolation of microbial consortia for nutrient reduction of plastic recycling wastewater

The wastewater generated during the plastic recycling is an aspect that is often overlooked in the process. This wastewater contains pollutants that can affect the environment and human health. To address this problem, a study was conducted to design and evaluate the performance of an anoxic-oxic (AO) system and an anoxic-oxic-oxic (AO2) system in treating plastic recycling wastewater. Additionally, the study collected wastewater from a plastic recycling company and activated sludge from a sewage treatment plant to test the viability of biological treatment for treating plastic recycling wastewater. The results showed that both systems were effective at reducing chemical oxygen demand (COD), with the AO system having a higher percent COD removal (98.13%) than the AO2 system (85.33%). Also, there were 18 unique colonies isolated from the wastewater and activated sludge. Overall, the study concludes that biological treatment can be used to treat plastic recycling wastewater, and the design of upscaled system is crucial to fully solve the wastewater problem.

Challenges and Innovations in Implementing Sustainable Supply Chain Smart Manufacturing in the Metal Recycling Industry

Recently, the State-owned Assets Supervision and Administration Commission of the State Council and the Ministry of Industry and Information Technology jointly launched the common chain action for integrating and developing the industrial chain of central enterprises (referred to as the common chain action). The government has actively taken measures to promote the modernization of industrial and supply chains, with digital intelligence empowerment becoming a key driving force. In this context, metal recycling companies face new challenges and opportunities in supply chain construction. This paper aims to deeply explore how digital intelligence empowerment affects the supply chain of recycled metal companies, as well as the difficulties faced and innovative solutions.

Q&A with Dr John Parkinson, founder and director, iinouiio and partner with Camira Fabrics, United Kingdom

Millions of tonnes of textile waste are sent to landfill every year with only a small percentage being recycled into new products. To drive the shift towards a more circular economy within the production and reuse of textiles, two companies have joined forces, iinouiio (it is never over until it is over), a textile recycling business, and Camira Fabrics, both established in West Yorkshire in the United Kingdom, to develop wool recycling production for new products for fashion and textiles. In this interview, Dr Debbie Moorhouse of the University of Huddersfield talks to Dr John Parkinson about his reinvention of the textile recycling company he originally started over thirty years ago to found iinouiio, a pioneering textile recycling company, and his subsequent partnership with Camira fabrics an innovative textile company, also based in West Yorkshire, United Kingdom, two companies which are now taking on the challenge of textile circularity.

Assessment of Policy Guidelines, Strategies, and Operational Processes Associated with Plastic Waste Management in Ghana

The study sought to assess to assess the policy guidelines, strategies, and operational processes associated with plastic waste management in Ghana. A descriptive cross-sectional study design that employed both quantitative and qualitative procedures was used. The data was analysed using Statistical Package for Social Sciences (SPSS). Descriptive analysis was performed on the structured questionnaire whereas thematic analysis was conducted on data from the interview guided. The results revealed that there are guidelines, strategies, and operational processes for plastic waste management in greater Kumasi and there exist different activities of stakeholders (Recycling companies, KMA and Waste collectors) in plastic waste management in Kumasi. The extent of compliance with plastic waste management guidelines (National Plastic Waste Management Policy) is dependent on the different stakeholders. Plastic recycling companies are in the infant stage with their activities being centered on six processes with pelletizing plastics for export been their major activities whereas waste collectors are solely responsible for collection, transportation and final disposal of plastic waste from different places to either dump sites or plastic recycling companies. KMA and other government institutions involved in waste management must take steps by supervising the day-to-day activities of plastic recycling companies and waste collectors to regulate the activities of companies within the plastic recycling industry.

Radiographic film waste management and recovery

Health facilities in Romania generate hundreds of thousands of tons of medical waste (hazardous and non-hazardous) annually. It is therefore necessary to apply a rigorous management of this waste, in compliance with applicable regulations, especially in the case of waste with a high potential for harmfulness. In the context of the global PANDEMIC of COVID 19, the amount of radiographic films generated has increased, using the classic variant when the moderns investigative devices was no longer available. The legislation requires hospitals and clinics to follow certain rules regarding the management of X-rays films. These are considered private information and must be managed according to the legislation, but silver and other chemicals in the film are toxic to the environment when are disposed uncontrolled. Recycling companies prefer to recover silver from effluents used to obtain classical radiography, recovery that is done by electrolysis and does not require large investments.The paper presents a relatively simple technology of recycling the radiographic films starting from laboratory studies, by leaching them in sodium hydroxide solution and the implications from the point of view of managing such activities.

CIRCULAR START-UPS IN TURKEY: AN EXPLORATORY STUDY

As world population grows, the need for the transition to a circular economy from a linear one is increasing. Such a transition can be made possible through the conversion of existing business models as well as introduction of new, circular ones. When it comes to application, circular business models can be adopted by both existing companies and start-ups. Among these two, academic research has traditionally focused more on existing companies. Therefore, more studies are needed on circular economy related activities of start-ups. As an exploratory study, this research analyses circularity strategies and circular business models used by start-ups within Turkey. The analysis is based on the data collected from 47 companies. As a result, it is found that most frequently used circularity strategy by circular start-ups in Turkey is Recyling, followed by Rethinking. As for circular business models used these companies, it is observed that Next Life- Extending Resource Value and Collaborative Consumption- Sharing Platform models are most popular ones. Also it is suggested that circular start-ups in Turkey can be categorised under five categories as 1) Recycling Companies, 2) Sharing Based Endeavors, 3) Recycled Material Users, 4) Second-Hand Product Marketplaces, 5) Waste Management Platforms

Assessment of Drinking Water Samples Around Selected Oil Spillage and Metal Recycling Company in Lagos State, Nigeria

In recent times, anthropogenic source has been considered to be one of the major sources of environmental pollution. In this study, the levels of six heavy metals (Cadmium -Cd, Copper-Cu, Chromium-Cr, Iron-Fe, Mangenese- Mn and Lead-Pb) were assayed in water samples from well and borehole around Gemade oil spillage and Sun metal industry, Lagos, Nigeria using Flame Atomic Absorption Spectrometry (FAAS). The levels of these heavy metals were in the order Fe > Mn > Cu > Cd / Pb / Cr for the two sites and control, and within the range 0.001-10.162 mg/L. The results showed that significant difference exists between these levels and the controls (tv < 0.005). In most cases, the levels of Fe and Mn from the sites were found above the WHO/FEPA limits. Significant differences exist between the levels of Cu and Mn in well and borehole water samples (tv = 0.004 -0.005) but not Fe (tv = 0.31 - 0.91). This indicated that the surrounding drinking water samples were polluted with some of these metals. The results obtained in this work also gave the baseline levels of these metals in the water samples at the selected sites.

Analysis of the challenges of a private cardboard recycling company to fulfill its mission in the city of Manaus, Amazonas

The trade in materials of cellulosic origin, such as paper, cardboard and others, has shown significant growth in many countries, mainly because they are used as packaging coatings and other forms of reuse, fundamentals of reverse logistics. In this sense, this work aimed to analyze the challenges that a private cardboard recycling company faces to fulfill its organizational mission in the city of Manaus, capital of the state of Amazonas. For this, it followed the steps foreseen in the scientific-technological method. Data were collected through a script of interviews and an observation protocol, organized and analyzed with the help of semantic analysis techniques, identifying central terms of the responses collected by interviews and compared with the observed data; the results were generated with triangulation techniques of the answers obtained with the two instruments and interpreted in a comparative way with the theoretical framework of reference. The results showed that a) the company contributes to environmental preservation through the correct destination of materials and cleaning of public places, b) these contributions are made through obedience to legal procedures, c) its challenges are to have access to all customers industrial and residential areas and make the population aware of the importance of environmental preservation; d) population and governments are the agents that can help overcome these challenges through e) awareness of the importance of sustainability (population) empowering and making the population put sustainability into practice (government). The conclusion shows that, albeit slowly, there is a tendency to increase this desired awareness.

Life Cycle Assessment of Construction and Demolition Waste Management in Riyadh, Saudi Arabia

Extensive construction augmenting the infrastructure and real estate projects underpin Saudi Arabia’s Vision 2030 of sustainable cities. A part of this struggle involves the transformation of the existing infrastructure together with new construction, which generates a large amount of construction and demolition waste (CDW). In the absence of a structured life cycle assessment (LCA) framework, the waste management companies are planning future scenarios (phased expansions of material recovery facilities to improve the recycling rate) primarily on economic grounds. This study assesses the environmental impacts of the existing and planned CDW management practices of the Saudi Investment Recycling Company in Riyadh City by dint of LCA. Impact 2002+ performs life cycle impact assessment of the base case (45% recycling), four treatments (61, 76, 88, and 100% recycling), and zero waste scenarios. The study demonstrates the benefits of current CDW (mixed soil, concrete blocks, clay bricks, glazed tiles, and asphalt) recycling in terms of avoided impacts of non-renewable energy, global warming, carcinogens, non-carcinogens, and respiratory inorganics potentially generated by landfilling. For the treatment scenario of 100% recycling, CDW conversion into a wide range of aggregates (0–50 mm) can replace 10–100% virgin aggregates in backfilling, precast concrete manufacturing, encasements and beddings of water mains and sewers, manholes construction, non-load bearing walls, and farm-to-market roads. To achieve long-term economic and environmental sustainability, municipalities need to improve source segregation, handling, and storage practices to enhance the existing (45%) recycling rate to 100% in the next five years and approach the zero-waste scenario by 2030. The findings of the present study motivate the generators for source reduction as well as encourage the recycling companies and concerned organizations in the continuous performance improvement of the CDW management systems across Saudi Arabia on environmental grounds, as an addition to the perceived economic benefits.

Carbon footprint analysis of straw collection, transportation, and storage system for power generation in China based on emergy evaluation.

Carbon footprint analysis method was employed to evaluate the ecological benefits of the straw collection, transportation, and storage system based on the case of Laifa Straw Recycling Company, and the emergy-based carbon emission indicator system was also set up to assess the relationship between input resource and carbon emission. In the condition of collecting 2 × 108 kg of straw production, the carbon emission of the artificial model (7.26 × 103 t CO2eq) and mechanical model (6.11 × 103 t CO2eq) was greatly lower than that of the straw burned in the field (2.78 × 105 t CO2eq). According to the emergy-based carbon emission indicator system, the carbon emission of straw recycling system was mainly triggered from labor input, which could be reduced by adjusting the resource structure. The ratio of carbon emission to environmental loading rate (ELRCO2) and ratio of carbon emission to emergy sustainability index (ESICO2) of the artificial model were 90.75E+6 kgCO2eq and 1.52E+6 kgCO2eq, respectively, which were higher than that of the mechanical model, 55.55E+6 kgCO2eq and 1.22E+6 kgCO2eq. It was obviously that the mechanical model had weaker influence on environmental loading than that of the artificial model and presented promising sustainable development ability in the case of mitigating carbon emissions.

PREFACE

ICSDI 2022 is the most dynamic, informative, inspirational, and innovative event organized by the Engineering College of Prince Sultan University (Riyadh, KSA). The 2022 conference focuses on the State of the Art and Practice in different sustainable development goals (SDGs), as one of the promising and trending Engineering disciplines, this field is still changing rapidly. Along with the diversity of presentations on challenging projects and research, ICSDI 2022 will feature multiple invited speakers on selected topics. The conference will include a wide range of knowledge-enhancing technical and panel sessions, short courses, and workshops.There are around 96 participants attending the conference in the opening ceremony and plenary sessions. They are from the United States, Germany, Canada, India, Brazil, Chile, China, Egypt, Russia, Georgia, Hong Kong and so on. The conference was held in hybrid, both physical and virtual mode due to covid19 restrictions in few countries. Around 18 participants attended in virtual mode. At this conference, we were greatly honored to have outstanding Keynote Speakers and Invited Speakers from different countries. They addressed the audience and shared their knowledge and rich experience in related fields. They are Prof. Dennis D. Truax from Mississippi State University, USA; Mr. Ziyad Alshiha, Group Chief executive of The Saudi Investment Recycling Company (SIRC), Saudi Arabia; Dr. Adam C. BOULOUKOS, The UNDP Resident Representative for the Kingdom of Saudi Arabia; Eng. Turki Bukhari, Vice President, Assets & Facilities Management, Expro, Saudi Arabia; Mr. Raed Albasseet, Chief Environment and Sustainability Officer of the Red Sea Development Company & AMAALA; Eng. Fahad Al Ajlan, President, KAPSARC; Mr. Mark Mirza, Project Leader at Fraunhofer ISC, Germany; Ms. Mayssam Tamim, Assistant Resident Representative; Dr Ahmed Al-Darwish, Deputy Governor for Development, Economic Research & Policy Advocacy; Dr. Ahmad Alwosheel, Assistant Researcher at King Abdulaziz City for Science and Technology (KACST); Eng. Mazin Albahkali, Executive Vice President Strategic Planning and New Business Development, Saudi Electricity Company (SEC), Saudi Arabia; Mr. Bandar Al Blehed Clients Relations Development Head -Saudi Exchange; Dr. Abdullah Alabdulkarem Executive Director of the Enablement Sector at the Government Expenditure and Projects Efficiency Authority (EXPRO); Eng. Waleed AlGhamdi, Associate Director, Smart City & Sustainability; Mr. Turki A. Alrowili, Spokesperson, Public Relations and Communication Director at National Development Fund; Dr. Ameer M. Al-Alwan, Advisory and Training Director, Center for Local Governance.There are 16 sub-sessions during the conference. The tracks of the conference include Manufacturing and Industrial Systems towards Sustainability, Sustainable Construction Technologies and Materials, Energy Sustainability: Challenges and Opportunities, Sustainable Urbanization and Smart Cities, Sustainability and Built Environment, Policies, Regulations and Economic Assessments towards SDGs. Attendees, paper presenters, keynote speakers, scholars and students have benefited in many ways from this conference. We would like to express our great appreciation to the organizers, members of the program committees and reviewers of ICSDI 2022 for their hard work. Without their participation, it would be impossible to hold ICSDI 2022 successfully and ensure the high quality of papers of the conference proceedings. We also would like to express our gratitude to the unbelievable number of authors for contributing their research results to the conference.List of Committees, Statement of Peer Review are available in this pdf.