Upcycling ferrous blast-furnace slag to design an effective ceramic anode for tartrazine yellow electrodegradation

Silva, Daniel da; Arrais, Luiz C.C.; Souza, Antonio Amison Gomes de; Silva, Francisco D.C.; Abrantes-Coutinho, Vanessa E.; Santos, Andre; Oliveira, Thiago M.B.F.

doi:10.1016/j.susmat.2021.e00373

Cited by 5 publications

(3 citation statements)

References 41 publications

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“…The main distinction between re-use and recycling is irreversibility: the material does not return to its original form. Recycling can go in two ways: downcycling -the transformation resulting in a material with a lower value; and upcycling -transforming into a material with a higher value than the initial one; for example, the upcycling of ferrous blast-furnace slag (Fe-BFS), a byproduct generated from siderurgic pyroprocessesto develop active ceramic anodes [51], and the composite material, which has as raw material adhesive and sticker printing waste produced by UPM Biocomposites, Lahti, Finland, and used by architect Shigeru Ban for the furniture company Arteck Milan in 2007 [52]. Downcycling is the most widely used transformation process despite being the least beneficial loop in the waste management hierarchy.…”

Section: Upcycling Waste and Byproducts As Construction Materialsmentioning

confidence: 99%

A Methodology to Qualitatively Select Upcycled Building Materials from Urban and Industrial Waste

Parece¹,

Rato²,

Resende³

et al. 2022

Preprint

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The growing concern about climate change and the recognition of the planet’s limits led society to look for alternatives that promote the balance between the natural and the built environment. The circular economy emerges as an alternative to the linear economic model, inspired by natural metabolisms, by circulating resources in continuous loops, where their intrinsic value is maintained and improved. This research proposes a closed-loop strategy in the built environment by studying innovative constructive solutions that aim to find use, value, and inspiration in what is considered waste. A literature review is conducted on the circular design strategies, re-use and recycle typologies, and waste transformation processes. Then, the development of a methodology for qualitative evaluation and selection of re-used and upcycled construction materials from post-consumer waste and by-products is presented and then applied to thirty-five cases of constructive solutions from plastic, wood, paper, steel, aluminium, and agricultural waste. The research reports that the developed framework is adequate. The analysed alternative materials have good environmental performance and can be used as building materials despite their functional limitations, reflecting the enormous potential of waste as a resource for the construction industry.

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Section: Upcycling Waste and Byproducts As Construction Materialsmentioning

confidence: 99%

A Methodology to Qualitatively Select Upcycled Building Materials from Urban and Industrial Waste

Parece¹,

Rato²,

Resende³

et al. 2022

Preprint

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show abstract

“…It includes minor changes that allow it to perform a function, e.g., a wooden structure is refurbished to be used again as a load-bearing structure or a cladding panel [51][52][53]. Superuse means recapturing the value of products when they have the lowest possible profit by providing new functions and reintroducing them into new cycles with creative design applications [54].…”

Section: Upcycling Waste and By-products As Construction Materialsmentioning

confidence: 99%

A Methodology to Qualitatively Select Upcycled Building Materials from Urban and Industrial Waste

et al. 2022

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The rising concern about climate change and other challenges faced by the planet led society to look for different design solutions and approaches towards a more balanced relationship between the built and natural environment. The circular economy is an effective alternative to the linear economic model inspired by natural metabolisms and the circular use of resources. This research explores how innovative strategies can be integrated for evaluating local urban and industrial wastes into sustainable building materials. A literature review is conducted focusing on circular design strategies, re-use, recycle, and waste transformation processes. Then, a methodology for the selection of upcycled and re-used building materials is developed based on Ashby’s method. A total of thirty-five types of partition walls, which include plastic, wood, paper, steel, aluminium, and agricultural wastes, are evaluated using a multi-criteria decision aid (M-MACBETH). Among these solutions, ten types of walls show high-performance thermal and sound isolation, fourteen types are effective for coating, and two exhibit structural reliability. Regardless of their functional limitations, the proposed solutions based on waste materials bear great potential within the construction industry.

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“…However, time cost and space requirements inhibit its large-scale promotion, especially for the relatively small piggeries [ 10 ]. The application of electrochemical oxidation (EO) for wastewater treatment is drawing increasing attention [ 11 , 12 , 13 , 14 ], and it has been regarded favorably as a next-generation water treatment technology for a few reasons. Compared with the conventional biological methods, EO can efficiently function at ambient conditions, is easy to manipulate and may be conducted automatically.…”

Section: Introductionmentioning

confidence: 99%

A Case Study of Swine Wastewater Treatment via Electrochemical Oxidation by Ti4O7 Anode

Wan

Wang

et al. 2022

IJERPH

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With the rapid development of breeding industry, the efficient treatment of dramatically increasing swine wastewater is gradually becoming urgent. In particular, the development of application technologies suitable for the relatively small piggeries is critical due to the time cost and space requirements of conventional biological methods. In this study, Electrochemical oxidation (EO) was selected to systematically explore the treatment performance of three different swine wastewaters by Ti4O7 anode. It was observed that the colors changed from dark brown to light yellow after 60 min treatment at 50 mA/cm2, and the removal rates of turbidity and suspended solids ranged from 89.36% to 93.65% and 81.31% to 92.55%, respectively. The chemical oxygen demand (COD), ammonia nitrogen (NH3-N) and total phosphorus (TP) of all the three swine wastewaters were simultaneously removed to a very low concentration in 120 min, especially for sample III, 61 ± 9 mg/L of COD, 6.6 ± 0.4 mg/L of NH3-N and 5.7 ± 1.1 mg/L of TP, which met the Discharge Standard of Pollutants for Livestock and Poultry Breeding (GB 18596-2001). Moreover, 70.93%–85.37% mineralization rates were also achieved in 120 min, confirming that EO treatment by Ti4O7 could efficiently remove the organic matters in wastewater. Excitation–emission matrix (EEM) and UV-vis spectrum characterization results further proved that aromatic compounds and macromolecules in wastewater were rapidly removed, which played important roles in the mineralization processes. The findings here provided an efficient and environment-friendly technology for swine wastewater treatment.

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Upcycling ferrous blast-furnace slag to design an effective ceramic anode for tartrazine yellow electrodegradation

Cited by 5 publications

References 41 publications

A Methodology to Qualitatively Select Upcycled Building Materials from Urban and Industrial Waste

A Methodology to Qualitatively Select Upcycled Building Materials from Urban and Industrial Waste

A Methodology to Qualitatively Select Upcycled Building Materials from Urban and Industrial Waste

A Case Study of Swine Wastewater Treatment via Electrochemical Oxidation by Ti4O7 Anode

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