| Title |
Tannery waste-derived biochar as a carrier of micronutrients essential to plants |
| ID_Doc |
8368 |
| Authors |
Skrzypczak, D; Szopa, D; Mikula, K; Izydorczyk, G; Basladynska, S; Hoppe, V; Pstrowska, K; Wzorek, Z; Kominko, H; Kulazynski, M; Moustakas, K; Chojnacka, K; Witek-Krowiak, A |
| Title |
Tannery waste-derived biochar as a carrier of micronutrients essential to plants |
| Year |
2022 |
| Published |
|
| DOI |
10.1016/j.chemosphere.2022.133720 |
| Abstract |
The leather tannery industry generates about 33 Mt/year of solid waste with different properties, turning its management into a challenge. One of the valorization methods of tannery wastes is the production of biochar by pyrolysis of leather scratches. Biochar's sorption properties and its high nitrogen content (10%) make it suitable for its application as a soil conditioner or carrier of microelements for fertilizers. The paper presents an innovative spray method to enrich biochar with cationic micronutrients: Cu, Mn, Zn. Enriched biochar contained 1095 mg/kg Cu(II), 1334 mg/kg Mn(II) and 1205 mg/kg Zn(II). The high bioavailability of nutrients and the effectiveness of the new fertilizer were demonstrated in extraction in vitro tests - the analysis of leachability of elements to water and bioavailability of micro-nutrients. The functional properties of enriched biochar were examined in vivo (germination, pot) tests. A high biomass increase (approximately 10%) was observed compared to the group fertilized with a commercial product. The proposed solution benefits the environment in that it is made from alternative resources from which innovative fertilizers are produced according to the circular economy concept. |
| Author Keywords |
Tannery waste; Carbonization; Micronutrients; Spray-sorption; Root stimulation |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000758333500008 |
| WoS Category |
Environmental Sciences |
| Research Area |
Environmental Sciences & Ecology |
| PDF |
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