Synergistic Effects of CO2 on Complete Thermal Degradation of Plastic Waste Mixture through a Catalytic Pyrolysis Platform: A Case Study of Disposable Diaper

Multilevel statistical entropy analysis (SEA) is a method that has been recently proposed to evaluate circular economy strategies on the material, component and product levels to identify critical stages of resource and functionality losses. However, the comparison of technological alternatives may be difficult, and equal entropies do not necessarily correspond with equal recyclability. A coupling with energy consumption aspects is strongly recommended but largely lacking. The aim of this paper is to improve the multilevel SEA method to reliably assess the recyclability of plastics. Therefore, the multilevel SEA method is first applied to a conceptual case study of a fictitious bag filled with plastics, and the possibilities and limitations of the method are highlighted. Subsequently, it is proposed to extend the method with the computation of the relative decomposition energies of components and products. Finally, two recyclability metrics are proposed. A plastic waste collection bag filled with plastic bottles is used as a case study to illustrate the potential of the developed extended multilevel SEA method. The proposed extension allows us to estimate the recyclability of plastics. In future work, this method will be refined and other potential extensions will be studied together with applications to real-life plastic products and plastic waste streams.

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Synergistic effects of lanthanum ferrite perovskite and hydrogen to promote ammonia production during microalgae catalytic pyrolysis process

Bioresource Technology ◽

10.1016/j.biortech.2021.125641 ◽

2021 ◽

pp. 125641

Author(s):

Peng Wang ◽

Jingchun Yan ◽

Shuyuan Wang ◽

Peng Xu ◽

Laihong Shen ◽

...

Keyword(s):

Catalytic Pyrolysis ◽

Synergistic Effects ◽

Ammonia Production ◽

Pyrolysis Process ◽

Lanthanum Ferrite

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Municipal waste conversion to hydrogen sulfide adsorbents: Investigation of the synergistic effects of sewage sludge/fish waste mixture

Chemical Engineering Journal ◽

10.1016/j.cej.2013.10.005 ◽

2014 ◽

Vol 237 ◽

pp. 88-94 ◽

Cited By ~ 28

Author(s):

Rajiv Wallace ◽

Mykola Seredych ◽

Pengfei Zhang ◽

Teresa J. Bandosz

Keyword(s):

Hydrogen Sulfide ◽

Sewage Sludge ◽

Synergistic Effects ◽

Municipal Waste ◽

Fish Waste ◽

Waste Mixture ◽

Waste Conversion

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PENGARUH PENGGUNAAN LIMBAH PLASTIK POLYPROPYLENE (PP) SEBAGAI CAMPURAN AGREGAT KASAR TERHADAP KUAT TEKAN DAN TARIK PADA BETON FC’ 25 MPA

Jurnal Infrastruktur ◽

10.35814/infrastruktur.v3i2.706 ◽

2019 ◽

Vol 3 (2) ◽

pp. 81-89

Author(s):

Angga Pirman Firdaus ◽

Jonbi

Keyword(s):

Tensile Strength ◽

Compressive Strength ◽

Strength Test ◽

Plastic Waste ◽

Concrete Mixture ◽

Strength Testing ◽

Concrete Compressive Strength ◽

Tensile Strength Test ◽

Compressive Strength Test ◽

Waste Mixture

Indonesia ranks second in the world's largest plastic waste producer after China. Each year, Indonesia can contributeup to 187.2 million tons of plastic waste, while China reaches 262.9 million tons of plastic waste. Based on the data, one way to utilize plastic waste by using plastic waste as a mixture of concrete, where the plastic used is polypropylene (PP) plastic with different percentage of concrete mixture, the test includes compressive strength test and tensile concrete. The results of concrete compressive strength testing with polypropylene (PP) plastic waste mixture of 5%, 10% and 15% at age 28 in aggregate aggregate mixture decreased by 5.15%, 6.89% and 13.53%. As for the result of concrete tensile strength test with polypropylene (PP) plastic waste mixture of 5%, 10% and 15% at age 28 in crude aggregate mixture decreased 17,61%, 24,13% dan 23,24%.

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