Benefits Of Circular Economy Research Articles

Maximizing circular economy benefits for manufacturing companies: A simulation tool for defining and implementing a circular product strategy

Achieving a balance between reducing environmental impact and ensuring economic viability is essential for Originals Equipment Manufacturers adopting circular product strategies. A critical aspect of this process is determining the optimal time to take a product out of operation to facilitate the implementing of an appropriate circular strategy. However, decision-makers often lack the tools and methods to effectively answer this question, making it difficult to define and implement a strategy that is both ecologically sound and economically viable. This article presents a methodology that uses the State of Health of a product as a key indicator to identify the most advantageous year for taking back the product and applying a specific circular process (i.e., reuse, remanufacturing or recycling). Based on the State-of-Health, the environmental impact and total cost of the product are calculated annually over its lifetime using defined parameters. A circular strategy is proposed for each take-back year, determined by State of Health thresholds for various circular processes. To determine the optimum take-back year, an algorithm is applied, using a weighted sum as the objective function. This methodology is implemented within a dynamic circular strategy simulation tool to support decision-making for stakeholders. The approach is demonstrated using a case study on a circuit breaker in Genset and hospital applications. The results show environmental and economic benefits of up to 7 % and 18 %, respectively, highlighting the potential value of using this circular strategy simulation tool.

The Role of Data Analytics and Sustainable Circular Economy in Developing Countries

In the twenty-first century, data analytics has become a vital tool in decision-making. Modern companies and organisations create enormous volumes of data, which need for sophisticated ways to analyse. Statistics help companies make data-driven decisions by organising, summarizing, and interpreting data. 21st-century enterprises, organisations, and people generate more data than ever. Due to rapid technological advancement and growing data, companies must make data-driven choices. As such, the place of data analytics is the era of digital economy cannot be overemphasize. This paper essentially review these roles in achieving sustainable circular economy in developing countries. The study was based solely on secondary data elicited from the review of previous studies on the subject being investigated. The examined the concepts and benefits of circular economy, the challenges in implementing circular economy in developing countries, as well as the concept, impact and role of data analytical impact on achieving sustainable circular economy. The overall findings from this study indicates that indeed, data analytics play important role in achieving sustainable circular economy in developing countries and thus recommends the system theory approach to circular economy where all parts are connected in somewhere to enhance effectiveness and reduce cost. Such connection can only be efficient through data analytics.

Policy risks in the biogas sector – the case of Sweden

Policy is decisive to stimulate biogas expansion; but policy-related factors may also inhibit the development. This study explores policy risks in the Swedish biogas sector and identifies strategies to mitigate these risks. The study is based on three workshops and a survey with participation of biogas stakeholders. The findings reveal that two major policy risks significantly impact the Swedish biogas sector: the ‘lack of long-term strategies’ and the ‘long and complicated permitting processes.’ ‘Limitations of permitted feedstocks’ and ‘limited system perspective—benefits of circular economy and sustainable food system’ are also among the most probable risks. More clearly defined roles for authorities at different administrative levels and the promotion of life cycle perspectives are critical to mitigate these risks. The research emphasizes that both EU and national governments play vital roles in reducing policy risks through predictable and long-term biogas strategies. Without these interventions, the potential of the Swedish biogas sector may remain underutilized.

Adsorption of per- and polyfluoroalkyl substances on biochar derived from municipal sewage sludge

Granular activated carbon (GAC) and ion exchange resin (IXR) are widely used as adsorbents to remove PFAS from drinking water sources and effluent waste streams. However, the high cost associated with GAC and IXR generation has motivated the development of less expensive adsorbents for treatment of PFAS-impacted water. Thus, the objective of this research was to create an economically viable and sustainable PFAS adsorbent from sewage sludge. Stepwise pyrolysis at temperatures from 300 °C to 1000 °C yielded biochars whose specific surface area (SSA) and porosity increased from 41 to 148 m2/g, and from 0.062 to 0.193 cm3/g, respectively. On a per organic char basis, the SSA of the biochar was as high as 1183 m2/g, which is comparable to commercially-available activated carbons. The adsorption of perfluorooctane sulfonic acid (PFOS) on sludge biochar increased with increasing pyrolysis temperature, which was positively correlated with increasing porosity and SSA. When 1000 °C processed biochar was tested with a mixture of eight PFAS, preferential adsorption of longer carbon chain-length species was observed, indicating the importance of PFAS hydrophobic interactions with the biochar and the availability of a wide range of mesopores. The adsorption of each PFAS was dependent upon both chain length and head group, with longer chain-length species exhibiting greater adsorption than shorter chain-length species, along with greater adsorption of species with sulfonic acid head groups compared to their chain length counterparts with carboxylic acid head groups. These findings demonstrate that biochar derived from municipal solid waste can serve as a cost-effective and sustainable adsorbent for the removal of PFOS and PFAS mixtures from source waters. The circular economy benefits and waste reduction potential associated with the use of sewage sludge-derived biochar supports the development of a viable sludge-derived biochar for the removal of PFAS from water.

Manure-derived black soldier fly frass enhanced the growth of chilli plants (Capsicum annuum L.) and altered rhizosphere bacterial community

Sustainable manure management is crucial for minimising environmental impacts as the livestock industry expands to meet the increasing demand for protein. Black soldier fly (Hermetia illucens L.) larvae (BSFL) farming is an emerging waste management method that efficiently processes large volumes of organic waste, including manure, to produce valuable protein, oil and chitin products. Frass, a nutrient-rich by-product of black soldier fly farming, has potential as an organic fertiliser. However, research has primarily focused on frass derived from food waste, with little exploration of manure-derived BSFL frass. This study aimed to determine whether frass derived from manure could enhance the growth of chilli (Capsicum annuum L.) over 14 weeks under controlled glasshouse conditions. The impacts of manure-derived BSFL frass on soil properties and soil bacterial communities were characterised. The results indicated that a 0.6 % w/w application rate yielded the highest chilli plant biomass, with reduced growth observed at higher rates. The enhanced growth at optimal manure-derived BSFL frass application rates was due to increased nitrogen content, whereas reduced growth at higher rates was likely caused by phytotoxicity from not completely decomposed frass. Soil microbial biomass carbon and nitrogen also increased with manure-derived BSFL frass, implying microbial carbon and nitrogen immobilisation. Additionally, the changes in pH and nutrients due to manure-derived BSFL frass caused shifts in the bacterial community in the chilli plant rhizosphere, enriching the relative abundance of bacteria with potential growth-promoting properties. This study highlights the potential of integrating manure into black soldier fly waste management processes, demonstrating that manure-derived BSFL frass can be used as an organic fertiliser with circular economy benefits.

Sustainable syngas production: Economic and circular economy benefits of PET waste gasification

This paper promotes awareness of the circular economy as a superior waste disposal system alternative. The novelty of this study is to model cleaner energy generation from the gasification of polyethene terephthalate (PET) waste accompanied by a detailed analysis on the economic feasibility. In the approximate analysis of PET, the percentage values for Ash and hydrogen were low (0 and 4.21, respectively). This parameter significantly impacted the Ash and hydrogen contents of the output gas, as it directly influenced the PET feedstock to a more excellent heating value (23.34 MJ/kg) and lower heating value (10.63 MJ/kg). Temperature and pressure are treated as free variables throughout each block during the gasification procedures. A sensitivity study revealed that the PET moisture content has no significant effect on the product composition. The economic analysis indicated that the gasification process could be economically viable. The economic analysis of the process considered the comprehensive evaluation of the plant’s financial aspects. The economic evaluation indicated that the facility would reach the break-even point by the end of its third year of operation, demonstrating its economic viability, with an NPV of £77,574,506.37 and an ROI of 40.1% for the suggested 25-year operational period of the facility.

Life Cycle Assessment Research Trends and Implications: A Bibliometric Analysis

Acknowledging the importance of sustainability and implementing measures to achieve the UN’s 17 Sustainable Development Goals (SDGs) by 2030 represent a holistic approach to promoting peace and prosperity for the planet and its inhabitants. LCA is a valuable tool for organisations to enhance sustainability and reduce environmental impact. There has been a notable increase in LCA research subjects, indicating a recognition of its significance in promoting sustainability. The field has experienced a significant expansion in the past decade, with a 30% annual percent growth rate in LCA publications since 2010. In the most recent 4 years alone, 47% of all LCA publications since 1991 were produced. This paper presents a comprehensive review of LCA research from 1991 to 2022, with a specific focus on the period from 2019 to 2022. The study identifies research avenues and trends in LCA research using diverse bibliometric analysis techniques alongside content examination and the SciVal topic clusters prominence indicator. This comprehensive approach reveals evolving trends, such as an increased emphasis on practical applications for global sustainability goals, LCA’s expansion into bio-based materials due to plastic pollution concerns, and quantification of circular economy benefits in solid waste management. Moreover, deeper exploration of energy-related sustainability aspects and the integration of LCA into early product development for eco-conscious design are observed. These trends signify widespread LCA adoption across industries to address energy and design-related sustainability challenges. The study acknowledges interdisciplinary collaboration among researchers, industry, and governments, shaping a robust LCA research landscape. China’s heightened contributions as a leading contributor to the field have reshaped the global LCA landscape mirrored in the evolving prominence of journals, institutes, and funding organisations.

The pavilion “Petite Maison” of the European Cultural Capital Esch'22: A case study of circular economy benefits in steel construction

Abstract“Petite Maison” is a collaborative architectural project on the theme of circularity in construction within the Esch2022, European Capital of Culture, in Luxembourg. Focusing on a similar concept, the RFCS project “REDUCE” has previously worked out the structural and environmental analysis of a modularized construction approach to evaluate and highlight the benefits of a reusable, circular steel structure. As a follow up to this project, CoCo Project (Carbon Counting and Projection) currently occupies with the determination of suitable routes to point out low‐carbon emission scenarios for the construction sector considering especially steel and steel composite solutions as well as prefabricated structural elements, which may be in concrete or timber. In other words, the project aims to demonstrate the impact of circular economy objectives in the load bearing building structures, considering majorly columns and flooring solutions containing concrete slabs, Laminated Veneer Lumber (LVL), and steel beams. In this article, the environmental performance of Petite Maison flooring system, as a case study, is investigated in detail. Different scenarios are defined for steel elements to quantify the environmental impacts and to emphasise the benefits of modular and reusable structural components.

Toward circular economy for pomegranate fruit supply chain under dynamic uncertainty: A case study

Food security is a fundamental prerequisite of human survival. This study focuses on providing a novel bi-objective model for the design of a green closed-loop pomegranate supply chain based on the value chain. To maximize the benefits of circular economy, we propose a thermochemical conversion process and develop a novel hybrid risk-neutral and risk-averse multi-stage stochastic programming (RNRAMSSP) approach to cope with supply uncertainty. We employ the expected value of perfect information (EVPI) and value of stochastic solution (VSS) to validate the proposed approach. For the VSS metric, we define a novel measure to compare the worst-case cost of the stochastic and deterministic model solutions. To demonstrate the applicability of the proposed model, we provide a real case study in Iran. Based on the VSS metric, the risk-neutral and risk-averse stochastic model solutions save up to 1% and 1.76% in the worst-case cost, respectively, compared to the deterministic model.

Effects of Circularity Interventions in the European Plastic Packaging Sector.

Low levels of plastics circularity today reflect major challenges for the sector to reduce environmental impacts and a need for wider systemic change. In this work, we investigated the potential for climate and socioeconomic benefits of circular economy (CE) interventions in the plastic packaging system. By means of a mixed-unit input-output (IO) model, we performed a comparative scenario analysis for the development of demand and waste management up to 2030 within the EU-28 (EU27 + United Kingdom). We modeled the development of material flows and assessed the effects of both demand-side and end-of-life interventions. Different levels of ambition toward 2030 based on EU circular economy strategies were tested. Results showed that on reaching high levels of circularity, between 14 and 22 Mt CO2-eq/year could be reduced by 2030 (20-30% of the total sector impact in 2018) compared to business-as-usual. Demand change (e.g., by decreasing product packaging intensities) showed similar emission-saving potential as achieving the current recycling target of 55%, which emphasizes the role of demand-side actions. Most scenarios displayed moderate employment gains and potential economic losses, pertaining to both direct and indirect activity shifts in the economy. While considering model limitations, the approach is useful in indicating potential first-order effects of system changes.

Impact of Circular Economy Measures in the European Union Built Environment on a Net-Zero Target

Environmental benefits of circular economy (CE) measures, such as waste reduction, need to be weighed against the urgent need to reduce CO2 emissions to zero, in line with the Paris Agreement climate goals of 1.5–2 °C. Several studies have quantified CO2 emissions associated with CE measures in the construction sector in different EU countries, with the literature’s focus ranging from bricks and insulation products, to individual buildings, to the entire construction sector. We find that there is a lack of synthesis and comparison of such studies to each other and to the EU CO2 emission reduction targets, showing a need for estimating the EU-wide mitigation potential of CE strategies. To evaluate the contribution that CE strategies can make to reducing the EU’s emissions, we scale up the CO2 emission estimates from the existing studies to the EU level and compare them to each other, from both construction-element and sector-wide perspectives. Our analysis shows that average CO2 savings from sector-wide estimates (mean 39.28 Mt CO2 eq./year) slightly exceeded construction-element savings (mean 25.06 Mt CO2 eq./year). We also find that a conservative estimate of 234 Mt CO2 eq./year in combined emission savings from CE strategies targeting construction elements can significantly contribute towards managing the EU’s remaining carbon budget. While this is a significant mitigation potential, our analysis suggests caution as to how the performance and trade-offs of CE strategies are evaluated, in relation to wider sustainability concerns beyond material and waste considerations.

Textile waste in the concept of circularity

The fashion industry constitutes the third most polluting industry in the world. The environmental implications of the fashion industry have grown in the last decade due to the throw away habits of consumers as well as depletion of raw material from producers. Furthermore, there is significant impact on all three sustainability pillars with environmental (i.e. emissions, energy, water consumption etc.), social (i.e. poverty, work ethics etc.) and economy (i.e. purchasing, manufacturing cost, depletion of raw materials etc.). The integration of Circular Economy into the fashion industry provides a fast and secure way towards sustainability in accordance with European legislations like the European Green Deal, the Circular Economy Strategy as well as the Sustainable Development Goals of the United Nations. Still, to follow through with the transition from a linear to circular fashion, adequate strategies and plans must be created in the framework of business models. As over the last years, the research community has pursued different business models regarding different stages of the fashion production line (from raw materials acquisition to disposal), still, a holistic business model covering all of the production progress is necessary. This research aims to combine different business models of circular fashion to create a holistic approach for the smooth and just transition to a prosperous and sustainable circular economy in the fashion industry. This research will provide insight to both producers and consumers to the barriers and benefits of circular economy in the fashion industry.

Novel GO/Fe-Mn hybrid for the adsorptive removal of Pb(II) ions from aqueous solution and the spent adsorbent disposability in cement mix: compressive properties and leachability study for circular economy benefits.

GO/Fe-Mn hybrids were prepared by a single-pot chemical precipitation method and were characterized using FTIR, XRD, Raman, zeta potential, and FESEM, which confirmed the impregnation of Fe/Mn onto GO sheets. The synthesized hybrids were successively applied in removing the Pb(II) ions from aqueous solution and later utilizing the spent adsorbent to increase the properties of cement. The adsorption capability of the synthesized hybrid was seen in a set of batch studies to find out that about 15min of contact time was required to remove 99% of the contaminant at a pH of 5 ± 0.2 and a dose of 0.83g/L. The mechanism of the adsorption process for the synthesized hybrid was well described by Elovich kinetic model with an R2 of 0.99 and Langmuir isotherm model, also with an R2 of 0.99. The desorption studies conducted using 0.1M HCl solution showed significant stability of the hybrid with a drop of 12% in the removal efficiency of Pb after up to five adsorption-desorption cycles. This points to an efficient adsorbent having potential for economical use. Later, the spent adsorbent was mixed with cement at ratios of 0.05%, 0.1%, and 0.5%, and compressive strength tests were performed, which showed an increase in the strength by 7.62%, 16.11%, and 26.82% at 28days of curing time. The TCLP and SPLP tests performed on the hybrid and cement-spent adsorbent mix showed all the leaching parameters were well within the permissible limits. This development shows the potential for the use of spent adsorbent in a circular economy model.

Use of celesto-barite mine waste in the production of eco-friendly white cement

This study aims to produce an eco-friendly white cement clinker by incorporation of celesto-barite mine waste. Samples of synthesized pure Monoclinic-C3S, Cubic-C3A and raw-mix were dried, ground to a Blaine of 3200cm2.g−1, doped separately with crescent amounts of mine waste and pure BaO (5 and 3% respectively), then burned at increasing temperature levels (1300–1400 °C). The effects of mine waste and BaO on raw-mix and synthesized pure clinker phases in terms of burnability, ultra-features, chromaticity, and mechanical strength of the synthesized clinkers were discussed through several techniques, including XRF, XRD coupled with Rietveld refinement, Thermal Analyses and SEM combined with EDS. Results reveal that incorporating 3% of mine-waste between 1350–1400 °C allows the production of high-quality belite-rich clinker for white cement (45.4%–C2S), with improved raw-mix reactivity and burnability by accelerating Free-lime absorption. Mechanical and colorimetric performances of cement were equivalent or better than the reference. The manufactured clinker bears relevant environmental and circular economy benefits by limiting greenhouse emissions, recycling mine-wastes and producing an eco-friendly and low-cost binder.

A method for the process of collagen modified polyester from fish scales waste

In this study, we introduced a novel polymerization method of polyester using collagen peptides derived from fish scale waste. After the extraction process of collagen peptide from fish scales, putting collagen peptide, ethylene glycol and Benzenedicarboxylic acid into a container, and mixing them to form a mixture; heating the mixture for executing an esterification reaction, to product esters and water; heating the esters, and stirring the esters via a mixer; in a specific period, decreasing the pressure in the container for executing a polycondensation reaction; decreasing the pressure in the container to a second pressure, and stirring the esters via the mixer, to produce a collagen modified polyester.Collagen peptides are rich in glycine, proline, and hydroxyproline, and by forming a triple helix structure, such as that of the copolyester, gain better hydrophilicity, antistaticity, and ductility. As a result, the produced collagen modified polyester fiber keeps the characteristics of the traditional polyethylene terephthalate fibers including strength, durability, and resistance to wrinkle and shrink. However, the supramolecular collagen modified polyester containing animal collagen peptides has naturally a soft touch and champagne-like color. Consequently, it can be used as a suitable material for skin-friendly functional clothes with or without additional dying. In brief,•This study introduces a novel method for collagen modified polyester.•Upcycled fish scale waste brings the sustainable benefits of circular economy.•Collagen modified polyester provides a new direction for future technological development in the textile industry.

Evaluating the benefits of circular economy due to adoption of its enablers

PurposeThis research aims to identify and prioritize the circular economy (CE) benefits (CEBs) due to the adoption of CE enablers (CEEs) in the Indian manufacturing organization context.Design/methodology/approachThis research proposes a hybrid framework of Pythagorean fuzzy analytic hierarchy process (PF-AHP) and Pythagorean fuzzy TODIM (an acronym in Portuguese for Interactive Multicriteria Decision-Making) techniques. It identifies the CEEs and CEBs based on literature review and validated through industrial experts. Further, this research conducts an empirical case study to demonstrate the applicability of the proposed framework.FindingsThe result shows that CE enabler SE1 (clear vision, support and commitment from top management for CE adoption) is the most critical enabler for CE implementation. The CE benefit CEB1 (improves the value chain of products and mitigating environmental damage during product life cycle phase) is the most significant benefit derived from the adoption of CEEs. The proposed framework will provide a more accurate, structural and systematic approach to the business organizations for achieving the CEBs in a stepwise manner through the effective adoption of CEEs.Research limitations/implicationsThe findings of this research are nation-specific and based on a case study of single manufacturing industry. Thus, the result obtained can vary from case to case and nation to nation.Originality/valueA deep understanding of each CEEs and CEBs would help build confidence among decision-makers and industrial practitioners to eliminate the risks associated with CE implementation.

Building territorial value within local circular economy’s projects: lessons from French scholars’ studies

ABSTRACT This contribution proposes an introduction to the concept of territorial value used by French-speaking researchers to analyse the benefits of circular economy (CE)’s projects. For several years, French-speaking researchers have been highlighting the emergence of a new form of value in the CE’s implementation. This so-called territorial value is associated with the mobilisation of heterogeneous actors (industrial, institutional, associative, etc.) in the CE’s implementation in the territories. It is essentially based on the capture, realisation, and redistribution of positive social externalities. However, this concept of territorial value covers many issues. This contribution addresses the theoretical and empirical issues of territorial value. It discusses its relationship with other concepts and/or forms of value (extended customer value, partnership value, shared value, etc.) which nevertheless remain values oriented towards the company. Then, it shows a relationship between territorial value, the issue of territorial development and, more broadly the ecological transition. The critical analysis reveals that the territorial value is defined around an overcoming of the genealogical approach of the value centred on the company. It refers to the valorisation of territorial resources. Then, it supposes the existence of a collective process relying particularly on the relations of proximity between the territorial actors. Finally, this contribution explores the difficulties in measuring this territorial value, which constitute research opportunities for the international scientific community.

Enablers, levers and benefits of Circular Economy in the Electrical and Electronic Equipment supply chain: a literature review

Circular Economy in the Electrical and Electronic Equipment (EEE) supply chain has a significant (and still unexploited) potential. This paper aims to systematically review the knowledge emerging from the literature at the intersection between Circular Economy and the EEE supply chain, with a special focus on enablers, levers, and their potential environmental, economic and social benefits. An original framework is developed to categorise Circular Economy enablers, levers and potential benefits. Companies in the EEE industry aiming to implement Circular Economy can exploit several enablers (grouped into digitalization, government intervention, and users’ active role) and levers (grouped into circular product design, servitised business models, and supply chain management) to generate economic, environmental and social benefits. Based on the framework, 115 articles were scrutinised. The analysis led to the definition of a research agenda, with policy and industry implications. To advance Circular Economy research in the EEE supply chain, future studies should address: (i) the enabling role of digitalization, particularly within blockchain, 3D Printing, augmented and virtual reality; (ii) design strategies focused on ‘reduce’; (iii) servitised business models based on result-oriented offerings; (iv) collaboration in the EEE supply chain; (v) the assessment of social and economic benefits to users. Future research should also investigate the systemic interrelations between enablers, levers and benefits.

The 9Rs Strategies for the Circular Economy 3.0

Circular economy (CE) was first introduced in the 1970s as an alternative economic model for replacing the traditional linear industrial economy, the take-make-use-throw approach. However, transition to a more circular economy can be challenging due to the untenable assumptions. It is viewed as a strategy enabling the ‘decoupling’ of resource use from economic growth, but there are still questions whether the CE can decouple resource use from economic growth. The purpose of this article is to study the evolution of the circular economy and the synthesis of the 10Rs hierarchy, to examine the circular economy roadmap and to review the strategies of 9Rs and the benefits of circular economy. Documentary study and literature review were used for data collection. It is found that the history of circular economy started as early as before World War II, known as closed economy. Then, the concept of circular economy evolved to CE 1.0, CE 2.0, and CE 3.0 since 2010 onward. Although 10R hierarchy (from R0-R9) was proposed to solve confusion around new conceptions of circularity, the waste-to-energy (Recovery) does not promote resource efficiency when considering the loss of value of potentially recyclable materials through combustion. Circular Economy, when successfully implemented, can clearly bring environmental, social and economic benefits. However, a CE roadmap should integrate the key stakeholders’ views on the essential developments and actions required for the transition as well as clarifies their own role in the transition.

The interplay of circular economy with industry 4.0 enabled smart city drivers of healthcare waste disposal

Generation of healthcare waste from different patient care activities in hospitals, pathology labs and research centres has been a matter of great concern for environmental and social bodies across the world. This concern comes from its infectious and hazardous nature which brings life taking disease such as human immunodeficiency virus and Hepatitis-B. Moreover, with the outbreak of corona virus disease 2019 (COVID-19) pandemic across the world, healthcare waste has become even more infectious like never before and showing its potential for claiming lives if not disposed properly. Additionally, the COVID-19 has put up another challenge in terms of exponentially increasing demand for personal protective equipments for healthcare workers such as doctors, nurses, ward boys, and sanitation workers. In this paper, seven criteria related to smart healthcare waste disposal system infused by circular economy aspects to recover value from disposables are identified and analysed using a decision making trial and evaluation laboratory (DEMATEL) method. The criteria have been prioritized by its importance and net cause and effect relationship through a causal diagram. Two criteria, (i) digitally connected healthcare centres, waste disposal firms and pollution control board, and (ii) providing a pollution control board’s feedback app to public and other stakeholders, feature as strong reasons for a smart healthcare waste disposal system. Conclusively, this study provides a causal relationship model among the intertwined drivers of industry 4.0 and circular economy for developing a smart healthcare waste disposal system enriched with the benefits of circular economy.