scholarly journals Tenebrio molitor in the circular economy: a novel approach for plastic valorisation and PHA biological recovery

2021 ◽  
Author(s):  
Paola Sangiorgio ◽  
Alessandra Verardi ◽  
Salvatore Dimatteo ◽  
Anna Spagnoletta ◽  
Stefania Moliterni ◽  
...  
Keyword(s):  
Circular Economy ◽  
Raw Materials ◽  
Economic Value ◽  
Tenebrio Molitor ◽  
World Population ◽  
Plastic Pollution ◽  
Biological Recovery ◽  
Great Opportunity ◽  
Novel Approach ◽  
The One

AbstractThe increase in the world population leads to rising demand and consumption of plastic raw materials; only a small percentage of plastics is recovered and recycled, increasing the quantity of waste released into the environment and losing its economic value. The plastics represent a great opportunity in the circular perspective of their reuse and recycling. Research is moving, on the one hand, to implement sustainable systems for plastic waste management and on the other to find new non-fossil-based plastics such as polyhydroxyalkanoates (PHAs). In this review, we focus our attention on Tenebrio molitor (TM) as a valuable solution for plastic biodegradation and biological recovery of new biopolymers (e.g. PHA) from plastic-producing microorganisms, exploiting its highly diversified gut microbiota. TM’s use for plastic pollution management is controversial. However, TM microbiota is recognised as a source of plastic-degrading microorganisms. TM-based plastic degradation is improved by co-feeding with food loss and waste as a dietary energy source, thus valorising these low-value substrates in a circular economy perspective. TM as a bioreactor is a valid alternative to traditional PHA recovery systems with the advantage of obtaining, in addition to highly pure PHA, protein biomass and rearing waste from which to produce fertilisers, chitin/chitosan, biochar and biodiesel. Finally, we describe the critical aspects of these TM-based approaches, mainly related to TM mass production, eventual food safety problems, possible release of microplastics and lack of dedicated legislation.

scholarly journals Correction to: Tenebrio molitor in the circular economy: a novel approach for plastic valorisation and PHA biological recovery

2021 ◽  
Author(s):  
Paola Sangiorgio ◽  
Alessandra Verardi ◽  
Salvatore Dimatteo ◽  
Anna Spagnoletta ◽  
Stefania Moliterni ◽  
...  
Keyword(s):  
Circular Economy ◽  
Tenebrio Molitor ◽  
Biological Recovery ◽  
Novel Approach

scholarly journals Carbon Emission and Plastic Pollution: How Circular Economy, Blockchain, and Artificial Intelligence Support Energy Transition?

2020 ◽  
Vol 7 (4) ◽  
pp. 7-13 ◽  
Author(s):  
Krishnaswamy Sankaran
Keyword(s):  
Common Sense ◽  
Circular Economy ◽  
Carbon Emission ◽  
Raw Materials ◽  
Energy Systems ◽  
Energy Transition ◽  
Plastic Pollution ◽  
Industrial Carbon ◽  
Green Fuels ◽  
Intelligence Support

What drives growth becomes cancerous when it goes beyond limits. Contrary to this common sense, today, consumerism drives our economies and feeds our appetite for ever-growing wants. As a result, we are damaging our ecosystems and risking our very existence on Earth. Though too late, various efforts are promoted by governments and driven by industries to rapidly decarbonize our energy systems and sustainably consume and recycle raw materials. We have discussed two ongoing projects in the domain of energy transition and circular economy. The first one transforms industrial carbon emissions into green fuels and the second one helps in efficient and sustainable segregation and recycling of plastic waste using multi-sensor-driven AI and blockchain tools. These examples demonstrate how circular economy and energy transitions complement each other in the battle against climate change and pollution.

Predictive and Flexible Circular Economy Approaches for Highly Integrated Products and their Materials as Given in E-Mobility and ICT

2019 ◽  
Vol 959 ◽  
pp. 22-31 ◽  
Author(s):  
Christoph Knieke ◽  
Sebastian Lawrenz ◽  
Magnus Fröhling ◽  
Daniel Goldmann ◽  
Andreas Rausch
Keyword(s):  
Circular Economy ◽  
Information Needs ◽  
Raw Materials ◽  
Economic Assessment ◽  
Process Chain ◽  
Waste Streams ◽  
Recycling Process ◽  
Novel Approach ◽  
Planning Methods ◽  
Selection Of

The control of degraded products, waste streams and secondary raw materials that can be produced from those must be in line with demand within the framework of an Advanced Circular Economy. Material requirements are developing dynamically depending on product development and consumer behavior. Accordingly, the recycling system must also behave dynamically and predictively and has to be transformed into stable, efficient but flexible process routes. This can also lead to a shift in the significance and sequence of the respective materials of main and secondary value in a process chain. This paper presents a novel approach for a smart and predictive circular economy. The approach consists of three major parts: An open information marketplace to meet information needs, suitable economic assessment and planning methods, and a dynamic optimization of the recycling process chain, e.g., selection of process steps and their sequence.

scholarly journals Importance of Sustainable Mineral Resource Management in Implementing the Circular Economy (CE) Model and the European Green Deal Strategy

Resources ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 55 ◽  
Author(s):  
Marzena Smol ◽  
Paulina Marcinek ◽  
Joanna Duda ◽  
Dominika Szołdrowska
Keyword(s):  
Sustainable Development ◽  
Circular Economy ◽  
Raw Materials ◽  
Mineral Resources ◽  
Transformation Process ◽  
Individual Member ◽  
Member States ◽  
Great Opportunity ◽  
Circular Model ◽  
Strong Emphasis

The European Green Deal is the new strategy for economic growth adopted by the European Commission (EC) in late 2019. One of the most important tasks in the realisation of this strategy is the mobilisation of the industry for a clean and circular economy (CE). Currently, the European Union (EU) is in the process of transformation towards a CE model, which was announced in 2014. The CE assumes a transition from a linear model based on take–make–dispose to a circular model, in which waste, if it arises, becomes a valuable resource. At the same time, it is recommended to use raw materials (RMs) more efficiently and to recycle them. The EC underlines that both changes in the management of mineral resources in individual member states and their effects should be monitored. Therefore, in 2018, the EC pointed out issues related to RM management as important elements of the monitoring framework in transformation process towards CE. The paper presents strategic directions aimed at sustainable and circular RM management in the EU, with a strong emphasis on the key elements of sustainable development—environmental, economic and social. Moreover, the importance of mineral resources management in the EC in the context of transformation towards the European Green Deal and CE is presented, and the results of selected CE indicators related to the RMs, and indicators that present sustainable RMs management are discussed. The core of the paper is presentation of a set of recommended actions which should be taken in coming years with strong emphasis on the implementation of the sustainable development (SD) principles. RM management faces a number of challenges, primarily in achieving increased levels of critical raw materials (CRMs) recycling, as well as the greater involvement of stakeholders themselves and awareness raising in the field of SD and CE among enterprises operating in the RMs sector. Currently, all member states are working together to accelerate the transformation process in the area of CE and the European Green Deal, e.g., by implementing national CE programs. A great opportunity to accelerate the transformation process is the new financial perspective for projects under the balanced and circular management of RMs—Horizon Europe, which plans to finance the new projects on RMs management and recycling.

scholarly journals The Covid-19 Pandemic—Opportunities for Circular Economy Practices Among Sewing Professionals in the City of Curitiba-Brazil

2021 ◽  
Vol 2 ◽  
Author(s):  
Harrison Lourenço Corrêa ◽  
Daniela Gallon Corrêa
Keyword(s):  
Circular Economy ◽  
Raw Materials ◽  
Production Lines ◽  
Basic Principles ◽  
Rapid Changes ◽  
The World ◽  
Level Of Knowledge ◽  
The One ◽  
Mandatory Use ◽  
The City

The pandemic that the world has been facing since Jan-2020 has promoted rapid changes in the form of consumption and service provision. In many countries, GDP forecasts have turned negative. But, if on the one hand, the prospects were negative, on the other, there were positive signs, including the adoption of recycling, remanufacturing, and reuse practices. Reusing raw materials in their production lines, companies and volunteers produced masks for mandatory use by the population of some countries such as Brazil. This brief period energized an economy that until then seemed to be dormant. In view of this scenario that took shape in the world, the present study aimed to assess how this pandemic affected sewing professionals' enterprises, contributing to an income generation and to a possible sustainable practice. The level of circularity was evaluated through a questionnaire and interviews as it was impossible to visit the ateliers. The survey of enterprise circularity was based on basic principles of circular economy from Ellen MacArthur Foundation. The questions were made considering some features, like level of knowledge about the theme The prospecting of the potential interviewers was carried out through a digital platform in the month of September-2020. Results obtained by fabric remnants mass balance indicated some level of circularity in the production mode of seamstresses during the pandemic. The challenge, however, is the high demand for masks allied to the search for customization by consumers. This represents the main obstacles to maintaining circularity in the production process.

scholarly journals VALUASI EKONOMI LIMBAH IKAN WADUK CIRATA MENJADI PRODUK TEPUNG IKAN

AdBispreneur ◽  
2020 ◽  
Vol 4 (3) ◽  
pp. 251
Author(s):  
Achmad Rizal ◽  
Asep AH. Suryana ◽  
Asep Sahidin
Keyword(s):  
Fish Meal ◽  
Raw Materials ◽  
Economic Valuation ◽  
Economic Value ◽  
Nutritional Composition ◽  
Production Costs ◽  
Raw Material ◽  
Fish Waste ◽  
Great Opportunity ◽  
Operational Expenditure

Mass mortality of fish in the Citarum River serial reservoir, including the Cirata reservoir has grown up to be a crucial issue for the fishing community in West Java. Fish waste due to mass death of fish in Cirata reservoir is quite high. In the context of fish mass death becomes a waste, the economic opportunity to develop fish waste into fish meal is of monetary value in terms of the availability of raw materials, nutritional composition, and marketing. In other words, the opportunity to increase fish waste into fish meal in the Cirata reservoir is fairly potential. If this happens, fish meal business has a great opportunity to enhance. Economically, economic valuation results show that: Firstly, fish meal business offers the opportunity to be developed because there is enough raw material available. Secondly, from economic analysis shows that this business is feasible, so that it has economic opportunities, this profitable opportunity will increase, if there is a mass death of fish, because production costs decrease, in this case fish prices decline. Third, the total cost required to build a fish meal home industry is Rp. 110,150,000, - with details of the initial investment costs of Rp. 63,500,000 and operational expenditure (operational costs) of 46,650,000. Finally, the economic value for the feasibility of fish flour shows that the business is feasible where BC ratio is 1.33, ROI is 6.39% and Pay Back Period is 15.63 months.Kematian massal ikan di waduk serial Sungai Citarum, termasuk di Waduk Cirata telah menjadi isu sentral bagi masyarakat perikanan di Jawa Barat.  Limbah ikan akibat kematian massal ikan di Waduk Cirata cukup tinggi.  Pada konteks kematian massal ikan sehingga menjadi limbah, peluang ekonomi pengembangan limbah ikan menjadi tepung ikan cukup bernilai ekonomis ditinjau dari aspek ketersediaan bahan baku, komposisi nutrisi, dan pemasaran. Dengan kata lain, peluang untuk meningkatkan limbah ikan menjadi tepung ikan di Waduk Cirata cukup potensial. Jika ini terjadi, usaha tepung ikan, memiliki peluang besar untuk berkembang. Secara ekonomi, hasil valuasi ekonomi menunjukkan bahwa: Pertama, Usaha tepung ikan mempunyai potensi untuk dikembangkan karena cukup tersedia bahan baku. Kedua, dari analisa ekonomi menunjukkan bahwa usaha ini layak (feasible), sehingga mempunyai peluang yang ekonomis, peluang ekonomi ini akan meningkat, jika terjadi kematian massal ikan, karena biaya produksi menurun, dalam hal ini harga ikan mengalami penurunan. Ketiga,Total biaya yang dibutuhkan untuk membangun home industri tepung ikan sebesar Rp. 110.150.000,-, dengan rincian biaya investasi awal sebesar Rp 63.500.000 dan biaya rutin sebesar 46.650.000,-. Keempat,Perhitungan valuasi ekonomi untuk kelayakan tepung ikan menunjukkan bahwa usaha tersebut adalah layak dimana BC Ratio sebesar 1,33, ROI sebesar 6,39 % dan dan pay back periode selama15,63  bulan.

Collecting Words: A Clinical Example of a Morphology-Focused Orthographic Intervention

2020 ◽  
Vol 51 (3) ◽  
pp. 544-560 ◽  
Author(s):  
Kimberly A. Murphy ◽  
Emily A. Diehm
Keyword(s):  
Written Language ◽  
Morphological Knowledge ◽  
English Orthography ◽  
Word Level ◽  
Novel Approach ◽  
Language Pathology ◽  
The One ◽  
Critical Intervention ◽  
Reading And Spelling ◽  
Reading And Spelling Difficulties

Purpose Morphological interventions promote gains in morphological knowledge and in other oral and written language skills (e.g., phonological awareness, vocabulary, reading, and spelling), yet we have a limited understanding of critical intervention features. In this clinical focus article, we describe a relatively novel approach to teaching morphology that considers its role as the key organizing principle of English orthography. We also present a clinical example of such an intervention delivered during a summer camp at a university speech and hearing clinic. Method Graduate speech-language pathology students provided a 6-week morphology-focused orthographic intervention to children in first through fourth grade ( n = 10) who demonstrated word-level reading and spelling difficulties. The intervention focused children's attention on morphological families, teaching how morphology is interrelated with phonology and etymology in English orthography. Results Comparing pre- and posttest scores, children demonstrated improvement in reading and/or spelling abilities, with the largest gains observed in spelling affixes within polymorphemic words. Children and their caregivers reacted positively to the intervention. Therefore, data from the camp offer preliminary support for teaching morphology within the context of written words, and the intervention appears to be a feasible approach for simultaneously increasing morphological knowledge, reading, and spelling. Conclusion Children with word-level reading and spelling difficulties may benefit from a morphology-focused orthographic intervention, such as the one described here. Research on the approach is warranted, and clinicians are encouraged to explore its possible effectiveness in their practice. Supplemental Material https://doi.org/10.23641/asha.12290687

The Belt and Road Initiative and Sino-Russian economic cooperation: Is there one more chance for us?

2019 ◽  
pp. 47-71
Author(s):  
Petr M. Mozias
Keyword(s):  
Regional Integration ◽  
Raw Materials ◽  
Belt And Road Initiative ◽  
Stage Of Development ◽  
Belt And Road ◽  
Flexible Framework ◽  
The One ◽  
International Transactions ◽  
The Belt And Road ◽  
Current Stage

China’s Belt and Road Initiative could be treated ambiguously. On the one hand, it is intended to transform the newly acquired economic potential of that country into its higher status in the world. China invites a lot of nations to build up gigantic transit corridors by joint efforts, and doing so it applies productively its capital and technologies. International transactions in RMB are also being expanded. But, on the other hand, the Belt and Road Initiative is also a necessity for China to cope with some evident problems of its current stage of development, such as industrial overcapacity, overdependence on imports of raw materials from a narrow circle of countries, and a subordinate status in global value chains. For Russia participation in the Belt and Road Initiative may be fruitful, since the very character of that project provides us with a space to manoeuvre. By now, Russian exports to China consist primarily of fuels and other commodities. More active industrial policy is needed to correct this situation . A flexible framework of the Belt and Road Initiative is more suitable for this objective to be achieved, rather than traditional forms of regional integration, such as a free trade zone.

European experience in transition to circular economy

2020 ◽  
Vol 19 (4) ◽  
pp. 598-617 ◽  
Author(s):  
S.V. Ratner
Keyword(s):  
European Union ◽  
Circular Economy ◽  
Raw Materials ◽  
Action Plan ◽  
National Level ◽  
The European Union ◽  
Scientific Methods ◽  
European Experience ◽  
General Scientific ◽  
The Eu

Subject. The article considers the concept of circular economy, which has originated relatively recently in the academic literature, and is now increasingly recognized in many countries at the national level. In the European Union, the transition to circular economy is viewed as an opportunity to improve competitiveness of the European Union, protect businesses from resource shortages and fluctuating prices for raw materials and supplies, and a way to increase employment and innovation. Objectives. The aim of the study is to analyze the incentives developed by the European Commission for moving to circular economy, and to assess their effectiveness on the basis of statistical analysis. Methods. I employ general scientific methods of research. Results. The analysis of the EU Action Plan for the Circular Economy enabled to conclude that the results of the recent research in circular economy barriers, eco-innovation, technology and infrastructure were successfully integrated into the framework of this document. Understanding the root causes holding back the circular economy development and the balanced combination of economic and administrative incentives strengthened the Action Plan, and it contributed to the circular economy development in the EU. Conclusions. The measures to stimulate the development of the circular economy proposed in the European Action Plan can be viewed as a prototype for designing similar strategies in other countries, including Russia. Meanwhile, a more detailed analysis of barriers to the circular economy at the level of individual countries and regions is needed.

A study on bioecology of macroalgae, genus Caulerpa in northern Minahasa Waters, North Sulawesi Province

2013 ◽  
Vol 1 (1) ◽  
pp. 26
Author(s):  
Irma Pulukadan ◽  
Rene Ch Keppel ◽  
Grevo S Gerung
Keyword(s):  
Dissolved Oxygen ◽  
Water Temperature ◽  
Raw Materials ◽  
Economic Value ◽  
Algal Growth ◽  
Environmental Parameters ◽  
Caulerpa Racemosa ◽  
Bottom Substrate ◽  
North Sulawesi ◽  
Ecological Aspects

Alga is a marine resource of potential to fisheries and marine sector. It has an important economic value to promote the economy in Indonesia. Nowdays, algae have been used as a relatively high value fisheries commodity since it has been used for food, industrial, pharmaceutical and cosmetic raw materials. This important potential needs to be supported with understanding of its biology and ecology, so that its utilization could increase the livelihood of the coastal villagers. This study was aimed at inventorying and identifying the members of genus Caulerpa found in North Minahasa Regency waters and studying some biological and ecological aspects of the algae in the area. Resuls showed that there were 7 species recorded, Caulerpa racemosa, C. racemosa var. macrophysa, C. sertularioides, C. taxifolia, C. serrulata,C. lentillifera and C. peltata. Ecologically, the environmental parameters, such as water temperature, salinity, pH, dissolved oxygen, turbidity, were in tolerable ranges for algal growth. Bottom substrate supported the growth of genus Caulerpa as well© Saat ini alga dijadikan sebagai komoditas hasil perikanan dengan nilai ekonomis yang relatif tinggi karena manfaatnya sebagai bahan makanan serta bahan baku industri, farmasi, dan kosmetik. Potensi yang cukup penting ini harus ditunjang dengan ilmu pengetahuan tentang biologi dan ekologi dari alga laut, sehingga pemanfaatannya dapat meningkatkan taraf hidup masyarakat pesisir. Penelitian tentang kajian bioekologi alga makro genus Caulerpa di perairan Minahasa Utara ini dilaksanakan dan diharapkan dapat memberikan informasi ilmiah tentang bioekologi alga makro genus Caulerpa, sehingga dapat dimanfaatkan untuk pengembangan pemanfaatan bagi kepentingan masyarakat pesisir khususnya dan industri alga makro umumnya. Penelitian ini bertujuan untuk menginventarisasi dan mengidentifikasi alga makro genus Caulerpa di perairan Kabupaten Minahasa Utara, dan mengkaji aspek bioekologinya. Hasil penelitian menunjukkan bahwa ditemukan 7 spesies, yaitu Caulerpa racemosa, C. racemosa var. macrophysa, C. sertularioides, C. taxifolia, C. serrulata, C. lentillifera dan C. peltata. Parameter lingkungan seperti suhu, salinitas, pH, oksigen terlarut, tingkat kecerahan air berada pada kisaran yang dapat ditolerir untuk pertumbuhan alga makro, sedangkan substrat juga mendukung pertumbuhan alga makro ini©

Sign in / Sign up

Export Citation Format

Share Document