![]() ![]() 2020) as well as for many other types of biomass (Aragón-Briceño et al. Many works recommend that the optimum HTC temperature be close to 200 ☌ for BSG (Jackowski et al. 2021) and the high range usually being 260 ☌ and 280 ☌ (McGaughy and Reza 2018 Shen 2020 Niinipuu et al. The HTC temperature range given in the literature is relatively wide, with the low range starting between 150 and 180 ☌ (Funke and Ziegler 2010 Ghanim et al. Subcritical water is the reaction environment in the HTC process, which allows the decomposition of biopolymers and organic compounds under conditions of elevated temperature (150–260 ☌) and elevated autogenous steam pressure (2–10 MPa). Its great advantage is the ability to treat materials with higher moisture content, which is not possible with other thermal processes, such as pyrolysis or incineration. Hydrothermal carbonization (HTC) is a promising thermochemical waste treatment technique. 2023), or biological techniques (Sharma et al. Many technologies can be applied to valorize waste biomass, including thermal (Khademi et al. The available techniques for valorizing biomass should convert it into valuable products or recover energy from it, in line with a closed-loop economy. Graphical Abstractīiomass waste is the largest group of residues from various sectors such as municipal waste, sewage sludge, agricultural waste, or food industry waste. The study shows that properly prepared hydrochars from brewery waste offer great potential as a nitrogen source and micronutrient delivery agents for the agrochemical sector. ![]() In addition, the study recorded a particular increase in nitrogen content in plants fertilized with a 150% dose of enriched hydrochar, where the element content increased by about 100% compared to the group with mineral fertilizer applied (100% dose). Twice the fresh plant mass was noted for this group compared to the reference. ![]() The pot tests on cucumber ( Cornichon de Paris) showed that the biometric parameters of the plant (stem length and root ball parameters) for the hydrochar obtained at 170 ☌ were higher than in the group fertilized with mineral fertilizer. It was observed that the higher the temperature of the carbonization process, the faster the desorption of components in a solution simulating soil conditions (NaNO 3) occurs. To minimize inhibition of plant growth, air aging tests were conducted for 30 days, followed by successive drying at 110 ☌ for 72 h. Preliminary germination tests have shown phytotoxic effects at doses greater than 20% (relative to plant nitrogen requirements) for unenriched hydrochars. The surface texture was characterized by the nitrogen adsorption technique, functional groups were identified (FT-IR), and thermogravimetric analysis of the materials was performed. HTC materials were enriched with nutrients using an innovative spray sorption method. Waste materials treated at 140 ☌, 170 ☌, and 200 ☌ were used as a source of renewable nitrogen and as delivery agents of fertilizer microelements (Cu, Mn, and Zn). The aim of this study was to develop a novel method for the production of hydrochars from brewery residues for agricultural applications. Hydrothermal carbonization is one of the new ways to produce valuable products from waste materials. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |