Next Article in Journal
An Abstraction Technique for Verifying Shared-Memory Concurrency
Previous Article in Journal
Technology Mapping of FSM Oriented to LUT-Based FPGA
Open AccessArticle

Unveiling a Recycling-Sourced Mineral-Biocellulose Fibre Composite for Use in Combustion-Generated NOx Mitigation Forming Plant Nutrient: Meeting Sustainability Development Goals in the Circular Economy

1
Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, 00076 Aalto, Helsinki, Finland
2
Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11200 Belgrade, Serbia
3
Innovation Center of Faculty of Technology and Metallurgy Ltd., Karnegijeva 4, 11200 Belgrade, Serbia
4
Omya International AG, Baslerstrasse 42, 4665 Oftringen, Switzerland
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(11), 3927; https://doi.org/10.3390/app10113927
Received: 12 May 2020 / Revised: 29 May 2020 / Accepted: 2 June 2020 / Published: 5 June 2020
(This article belongs to the Section Environmental and Sustainable Science and Technology)
NOx is unavoidably emitted during combustion in air at high temperature and/or pressure, which, if exceeding recommended levels, has a negative impact on the population. The authors found that when moist, limestone (CaCO3) readily sorbs NO2 to form calcium nitrate, which provides the basis for developing a surface flow filter. The substrate was made from “over-recycled” cellulose fibres such as newsprint, magazines, or packaging fibre, which are too weak to be used in further recycling. The substrate was specially-coated with fine-ground calcium carbonate and micro-nano-fibrillated cellulose, which was used as a binder and essential humectant to avoid formation of a stagnant air layer. Pre-oxidation countered the action of denitrification bacteria colonising the cellulose substrate. The by-product CO2 produced in situ during carbonate to nitrate conversion was adsorbed by perlite, which is an inert high surface-area additive. After use, the nitrate-rich CaCO3-cellulose-based filter was proposed to be mulched into a run-off resistant soil fertiliser and micronutrient suitable, e.g., for renewable forestry within the circular economy. Belgrade, Serbia, which is a highly polluted city, was used as a laboratory test bed, and NO2 was successfully removed from an inlet of city air. A construct of street-side self-draughting or municipal/commercial transport vehicle-exterior motion-draught filter boxes is discussed. View Full-Text
Keywords: NOx sorption; gaseous pollution mitigation; cellulose circular economy; micro-nano-fibrillated cellulose humectant; sustainable energy solutions; zero carbon transport; zero carbon combustion systems NOx sorption; gaseous pollution mitigation; cellulose circular economy; micro-nano-fibrillated cellulose humectant; sustainable energy solutions; zero carbon transport; zero carbon combustion systems
Show Figures

Graphical abstract

MDPI and ACS Style

Gane, P.; Dimić-Mišić, K.; Barać, N.; Imani, M.; Janaćković, D.; Uskoković, P.; Barceló, E. Unveiling a Recycling-Sourced Mineral-Biocellulose Fibre Composite for Use in Combustion-Generated NOx Mitigation Forming Plant Nutrient: Meeting Sustainability Development Goals in the Circular Economy. Appl. Sci. 2020, 10, 3927.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop