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Valorization of greenhouse biomass waste using pyrolysis

Show simple item record ION, Violeta Alexandra PÂRVULESCU, Oana Cristina MOȚ, Andrei POPA, Vlad Ioan CALCAN, Suzana RĂDUCANU, Cristi BĂDULESCU, Liliana GRIGORAȘ, Claudia 2021-10-18T10:54:49Z 2021-10-18T10:54:49Z 2021
dc.identifier.citation ION, Violeta Alexandra, PÂRVULESCU, Oana Cristina, MOȚ, Andrei ș. a. Valorization of greenhouse biomass waste using pyrolysis. In: Intelligent Valorisation of Agro-Food Industrial Wastes. Book of abstracts. International Conference, 7-8 October 2021. Chișinău, 2021, p. 68. ISBN 978-9975-3464-2-9. en_US
dc.identifier.isbn 978-9975-3464-2-9
dc.description Abstract. en_US
dc.description.abstract Pyrolysis can be a promising and relevant technique for valorization of biomass waste obtaining biochar, which can be further used as a soil amender, can enhanced soil carbon sequestration, reduce greenhouse gas emissions and nutrient leaching, increase soil fertility, resulting in agronomic, environmental, and economic benefits. Chrysanthemum morifolium is a perennial floral species dating back to ancient China, which can be used both for gardening and exhibitions. After the flowers have passed or are harvested, the plants are cut about 10-20 cm above the growing medium, in order to prepare them for the cold season. These cuttings result in significant amounts of plant waste material, sometimes even woody at the base. The aim of the research was to study the effect of pyrolysis on yield and relevant physicochemical characteristics of biochar obtained from greenhouse waste in order to be further applied as soil amendment. Waste material of Chrysanthemum morifolium was harvest in the autumn of 2020 from the University of Agronomic Sciences and Veterinary Medicine of Bucharest Greenhouse, cut in small pieces (stem, leaves, flowers) and dried at room temperature for a few days. Slow pyrolysis of chopped material was performed in a fixed bed reactor, in the presence of CO2 as a carrier gas. Process experimental factors were as follows: heat flux (6-10 kW/m2), carbon dioxide superficial velocity (0.004-0.008 m/s) and material particle size (0.015-0.033 m). Both the plant waste material and biochar were characterised in terms of dry matter, loss on ignition, SEM, total carbon and nitrogen, bulk density, water retention capacity, pH, electrical conductivity, and mineral content. The effects of process factors on biochar yield and physicochemical characteristics as well as on pyrolytic oil yield were evaluated by statistical analysis. The results obtained indicated that greenhouse waste can be successfully valorized by slow pyrolysis. en_US
dc.language.iso en en_US
dc.publisher Universitatea Tehnică a Moldovei en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri *
dc.subject biomass waste en_US
dc.subject biochar en_US
dc.subject pyrolysis en_US
dc.subject physicochemical characterization en_US
dc.subject waste valorization en_US
dc.title Valorization of greenhouse biomass waste using pyrolysis en_US
dc.type Article en_US

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