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Capitalism
Published in Mark W. McElroy, The Space Industry of the Future, 2023
Recycling hardware materials is one option for value management, though it does not come for free. Recycling costs money, it takes energy, and it creates waste from associated activities like sorting, remelting, cleaning, and machinery operation. Designing products and parts to be disassembled, reused, or repurposed typically is preferable and can make more sense economically [23]. If disassembly, reuse, and repurpose are not possible, then it is preferable to utilize recycling for value recapture compared to doing nothing at all.
Sustainable Polymers for Additive Manufacturing
Published in Antonio Paesano, Handbook of Sustainable Polymers for Additive Manufacturing, 2022
Recycling plastics is an effective way to reduce solid waste: it is cheaper in comparison to recycling other materials, and can be accomplished through common equipment such as extruders and injection molding presses, and in fact it has been applied to plastic waste for many years (Żenkiewicz et al. 2009). CEN/TR 16208 defines recycling as reprocessing the waste materials in a production process “for the original purpose or for other purposes including organic recycling but excluding energy recover.” Organic recycling is the recycling of materials from animal and plants. ASTM D883-17 defines recycled plastics as “those plastics composed of postconsumer material or recovered material only, or both, that may or may not have been subjected to additional processing steps of the types used to make products such as recycled-regrind or reprocessed or reconstituted plastics” (ASTM D883-17).
Waste Prevention: Its Impact and Analysis
Published in Biswaranjan Acharya, Satarupa Dey, Mohammed Zidan, IoT-Based Smart Waste Management for Environmental Sustainability, 2022
Arjyadhara Pradhan, Sarita Samal, Babita Panda, Biswaranjan Acharya
In addition, recycling has opened up advantages in various fields such as conservation of natural resources, reduction in energy consumption and environmental emissions, thereby reducing overall energy consumption and greenhouse gas emissions. Reduction of greenhouse gas emissions affects the global climate. Temperatures need to be at healthy levels for the survival of living organisms. Recycling can even create economic growth by creating several job options to carry out this work.
The use of microbial fuel cell for efficient treatment of cauliflower waste and generation of electricity
Published in International Journal of Sustainable Energy, 2023
Rocky Maharjan, Pradip Dhungana, Lakshmaiah Sreerama, Puja Bhatt, Bikram Prajapati, Prabesh Poudel, Pratap Kandel, Mamata Khadka, Apshara Parajuli, Jarina Joshi
Recovery and recycling of waste is a great deal in today’s scenario. The discarded items are processed to extract or recover materials and resources or convert them to energy usable heat, electricity or fuel (Santagata et al. 2021). Recycling is the third component of reduce, reuse and recycle waste hierarchy (de Sadeleer et al. 2020). In a recent scenario, the food and energy markets are facing an imbalance of supply and demand (Esfandabadi, Ranjbari, and Scagnelli 2022) resulting in the need to search for alternative carbon-neutral energy sources. Energy waste is one of the good recycling processes which involves converting non-recyclable waste items into usable heat, electricity or fuel through a variety of processes (Ng et al. 2019). This type of energy source is renewable because non-recyclable waste can be used to create energy. It can also help to reduce carbon emissions by offsetting the need for energy from fossil sources (Du and Li 2017).
A comprehensive thermo-kinetics devolatilization analysis of waste motor oil: Thermal degradation kinetics, kinetic model, thermodynamic analysis, and ANN
Published in International Journal of Green Energy, 2023
Asmita Mishra, Mayuri Sonowal, Venkata Yasaswy Turlapati, Payal Maiti, B.C. Meikap
The Sustainable Development Goals (SDGs), sometimes known as the Global Goals, are a set of 17 interconnected global goals intended to serve as a “blueprint for achieving a better and more sustainable future for all people and the world by 2030.” Besides, according to the targets of SDG 7: Affordable And Clean Energy, “By 2030, enhance international co-operation to facilitate access to clean energy research and technology, including renewable energy, energy efficiency and advanced and cleaner fossil-fuel technology, and promote investment in energy infrastructure and clean energy technology” (Siddiqi et al. 2021). Also, Mishra et al. (2021) confirmed that organic waste pyrolysis is a sustainable technology for energy security, waste management, and environmental protection. Further, the waste engine oil pyrolysis generates (i) gasoline range hydrocarbons, (ii) kerosene, (iii) heavy fuel oil, and (iv) diesel-like fuels. Furthermore, the uncondensed gases generated can be used to (i) reclaim energy, (ii) generate steam, (iii) generate syn-gas, and (iv) produce electricity (Mishra et al. 2021). Besides, pyrolysis is one of the most sustainable thermochemical recycling technology. WMO pyrolysis is a complex process dependent on WMO composition and reaction propagation. The pyrolysis process’s fast and simultaneous overlapping reactions make it impossible to distinguish subsequent steps. The knowledge of pyrolysis reaction kinetics is the primary requirement for a detailed understanding of WMO pyrolysis.
On the indirect environmental outcomes of COVID-19: short-term revival with futuristic long-term implications
Published in International Journal of Environmental Health Research, 2022
Muhammad Irfan, Munir Ahmad, Zeeshan Fareed, Najaf Iqbal, Arshian Sharif, Haitao Wu
An important environmental concern that has gained the world’s attention is waste recycling. Recycling is commonly used to reduce pollution, conserve energy, and save natural resources. Due to the current pandemic, recycling activities have been postponed by many countries, notably the USA, as the officials are worried about the danger that the recycling hubs will catch the virus (Somani et al. 2020). Hospitals are not the only sources of contaminated waste. Municipal solid waste (MSW) has considerably increased due to the self-isolation of people at home. To tackle the rising number of infected individuals, even modern healthcare facilities have turned out to be inadequate. This requires to significantly modify the waste management approaches, from collection, sorting guidelines, and waste handling to the protection mechanism of the waste-gathering employees (Fan et al. 2021). Waste handling strategies during the pandemic are illustrated in Figure 4.