The Agricultural Waste Inventory On the Regional Basis in Turkey: Valuation of Agricultural Waste with Zero-Waste Concept in the Scope of Circular Economy

Polymer composites have been identified as the most innovative and selective materials known in the 21st century. Presently, polymer concrete composites (PCC) made from industrial or agricultural waste are becoming more popular as the demand for high-strength concrete for various applications is increasing. Polymer concrete composites not only provide high strength properties but also provide specific characteristics, such as high durability, decreased drying shrinkage, reduced permeability, and chemical or heat resistance. This paper provides a detailed review of the utilization of polymer composites in the construction industry based on the circular economy model. This paper provides an updated and detailed report on the effects of polymer composites in concrete as supplementary cementitious materials and a comprehensive analysis of the existing literature on their utilization and the production of polymer composites. A detailed review of a variety of polymers, their qualities, performance, and classification, and various polymer composite production methods is given to select the best polymer composite materials for specific applications. PCCs have become a promising alternative for the reuse of waste materials due to their exceptional performance. Based on the findings of the studies evaluated, it can be concluded that more research is needed to provide a foundation for a regulatory structure for the acceptance of polymer composites.

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Integrated Mechanistic Engineering Models and Macroeconomic Input-Output approach to Model Physical Economy for Evaluating the Impact of transition to Circular Economy

Energy & Environmental Science ◽

10.1039/d1ee00544h ◽

2021 ◽

Author(s):

Venkata Sai Gargeya Vunnava ◽

Shweta Singh

Keyword(s):

Circular Economy ◽

Emerging Technologies ◽

Low Carbon ◽

Input Output ◽

Zero Waste ◽

Engineering Models ◽

The Impact ◽

Sustainable Transition

Sustainable transition to low carbon and zero waste economy requires a macroscopic evaluation of opportunities and impact of adopting emerging technologies in a region. However, a full assessment of current...

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Method for Zero-Waste Circular Economy Using Worms for Plastic Agriculture: Augmenting Polystyrene Consumption and Plant Growth

Methods and Protocols ◽

10.3390/mps4020043 ◽

2021 ◽

Vol 4 (2) ◽

pp. 43

Author(s):

Samuel Ken-En Gan ◽

Ser-Xian Phua ◽

Joshua Yi Yeo ◽

Zealyn Shi-Lin Heng ◽

Zhenxiang Xing

Keyword(s):

Plant Growth ◽

Circular Economy ◽

Food Source ◽

Food Additives ◽

Poultry Feed ◽

Zero Waste ◽

Dragon Fruit ◽

Hylocereus Undatus ◽

Natural Solution ◽

And Control

Polystyrene (PS) is one of the major plastics contributing to environmental pollution with its durability and resistance to natural biodegradation. Recent research showed that mealworms (Tenebrio molitor) and superworms (Zophobas morio) are naturally able to consume PS as a carbon food source and degrade them without observable toxic effects. In this study, we explored the effects of possible food additives and use of worm frass as potential plant fertilizers. We found that small amounts of sucrose and bran increased PS consumption and that the worm frass alone could support dragon fruit cacti (Hylocereus undatus) growth, with superworm frass in particular, supporting better growth and rooting than mealworm frass and control media over a fortnight. As known fish and poultry feed, these findings present worms as a natural solution to simultaneously tackle both the global plastic problem and urban farming issue in a zero-waste sustainable bioremediation cycle.

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Zero Waste Strategy for a Green Campus

Journal of Sustainability Perspectives ◽

10.14710/jsp.2021.12027 ◽

2021 ◽

Vol 1 ◽

Author(s):

Gislaine Ap. Moreira ◽

Emilia Wanda Rutkoskwi

Keyword(s):

Circular Economy ◽

Sustainable Development Goals ◽

Education Institution ◽

Exploratory Research ◽

The Sustainable Development ◽

Zero Waste ◽

Management Measures ◽

Sustainability Issue ◽

Development Goals ◽

Green Campus

When adopting the zero waste strategy for the implementation of waste management measures at a Higher Education Institution, the commitment in the institution is of fundamental importance, not only with solid waste, but with the sustainability issue under a circular economy perspective, which should gradually be incorporated to the different programs and routine actions from universities. Several directions can be taken in the construction of this path so that universities are managed under the sustainability’s premises. In this article, the zero waste strategy for implementation of a circular economy program will be analyzed as a way to consolidate the process Green Campus. A qualitative and exploratory research was undertaken on green campus and zero waste strategies, mainly in universities. Although there is still a limited number of universities committed to zero waste actions, it was possible to appoint the benefits when implementing institutional programs related to sustainability and the fulfillment of the Sustainable Development Goals.

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UM Zero Waste Campaign (UM ZWC) Waste-to-Wealth Initiative: Promoting Circular Economy at Higher Educational Institutions

Natural Food Products and Waste Recovery ◽

10.1201/9781003144748-18 ◽

2021 ◽

pp. 233-248

Author(s):

Sumiani Yusoff ◽

Ng Chee Guan ◽

Mairuz Asmarafariza Azlan ◽

Nur Shakirah Binti Kamarul Zaman

Keyword(s):

Circular Economy ◽

Educational Institutions ◽

Higher Educational Institutions ◽

Zero Waste ◽

Higher Educational

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Oil Press-Cakes and Meals Valorization through Circular Economy Approaches: A Review

Applied Sciences ◽

10.3390/app10217432 ◽

2020 ◽

Vol 10 (21) ◽

pp. 7432

Author(s):

Petraru Ancuța ◽

Amariei Sonia

Keyword(s):

Dietary Fiber ◽

Bioactive Compounds ◽

Circular Economy ◽

Food Industry ◽

Oil Industry ◽

Extraction Process ◽

Research Field ◽

Zero Waste ◽

Oil Cakes ◽

Pharmaceutical Industries

The food industry generates a large amount of waste every year, which opens up a research field aimed at minimizing and efficiently managing this issue to support the concept of zero waste. From the extraction process of oilseeds results oil cakes. These residues are a source of bioactive compounds (protein, dietary fiber, antioxidants) with beneficial properties for health, that can be used in foods, cosmetics, textile, and pharmaceutical industries. They can also serve as substrates for the production of enzymes, antibiotics, biosurfactants, and mushrooms. Other applications are in animal feedstuff and for composites, bio-fuel, and films production. This review discusses the importance of oilseed and possible valorization methods for the residues obtained in the oil industry.

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