Optimization of Blended Biochar Pellet by the Use of Nutrient Releasing Model
For the recycling of biomass conversion materials, this experiment was conducted to investigate plant nutrient releasing characteristics, and to determine an optimum blended ratio of biochar for producing a biochar pellet based on a column leaching study. The treatments consisted of only pig manure...
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doaj-021e4739208845b4ae6ade5bafaaa7172020-11-24T20:56:59ZengMDPI AGApplied Sciences2076-34172018-11-01811227410.3390/app8112274app8112274Optimization of Blended Biochar Pellet by the Use of Nutrient Releasing ModelJoungDu Shin0SangWon Park1Department of Climate Change and Agro-Ecology, National Institute of Agricultural Sciences, WanJu Gun 55365, KoreaChemical Safety Devision, National Institute of Agricultural Sciences, WanJu Gun 55365, KoreaFor the recycling of biomass conversion materials, this experiment was conducted to investigate plant nutrient releasing characteristics, and to determine an optimum blended ratio of biochar for producing a biochar pellet based on a column leaching study. The treatments consisted of only pig manure compost (PMC) as a control, pig manure compost pellets (PMCP), and biochar pellets (BCP) blended with biochar and pig manure compost with the following ratios: 9:1, 8:2, 4:6, and 2:8. Results showed that the accumulated amount of ammonium nitrogen (NH<sub>4</sub>-N) was in order of PMC > PMCP > BCP (2:8) > BCP (4:6) > BCP (8:2) > BCP (9:1) ratios. The highest accumulated amounts of phosphate phosphorus (PO<sub>4</sub>-P) and potassium (K) were 1953 and 1917 mg L<sup>−1</sup> in the PMC and PMCP, but the lowest in the BCP (9:1) were 223 and 1078 mg L<sup>−1</sup>, respectively. It was shown that the highest accumulated amount of silicon dioxide (SiO<sub>2</sub>) was 2329 mg L<sup>−1</sup> in the BCP (8:2), but the lowest in the PMC was 985 mg L<sup>−1</sup>. The estimations for accumulated NH<sub>4</sub>-N, PO<sub>4</sub>-P, K, and SiO<sub>2</sub> releasing amounts in all the treatments were significantly fitted with a modified Hyperbola model. The optimum mixing rate was estimated to be BCP (2:8). Therefore, biochar pellets might be useful in obtaining basic information on slow-release fertilizer for sustainable agriculture.https://www.mdpi.com/2076-3417/8/11/2274biochar pelletmodified Hyperbola modelnutrient releasepelletizationpig manure compost |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
JoungDu Shin SangWon Park |
spellingShingle |
JoungDu Shin SangWon Park Optimization of Blended Biochar Pellet by the Use of Nutrient Releasing Model Applied Sciences biochar pellet modified Hyperbola model nutrient release pelletization pig manure compost |
author_facet |
JoungDu Shin SangWon Park |
author_sort |
JoungDu Shin |
title |
Optimization of Blended Biochar Pellet by the Use of Nutrient Releasing Model |
title_short |
Optimization of Blended Biochar Pellet by the Use of Nutrient Releasing Model |
title_full |
Optimization of Blended Biochar Pellet by the Use of Nutrient Releasing Model |
title_fullStr |
Optimization of Blended Biochar Pellet by the Use of Nutrient Releasing Model |
title_full_unstemmed |
Optimization of Blended Biochar Pellet by the Use of Nutrient Releasing Model |
title_sort |
optimization of blended biochar pellet by the use of nutrient releasing model |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2018-11-01 |
description |
For the recycling of biomass conversion materials, this experiment was conducted to investigate plant nutrient releasing characteristics, and to determine an optimum blended ratio of biochar for producing a biochar pellet based on a column leaching study. The treatments consisted of only pig manure compost (PMC) as a control, pig manure compost pellets (PMCP), and biochar pellets (BCP) blended with biochar and pig manure compost with the following ratios: 9:1, 8:2, 4:6, and 2:8. Results showed that the accumulated amount of ammonium nitrogen (NH<sub>4</sub>-N) was in order of PMC > PMCP > BCP (2:8) > BCP (4:6) > BCP (8:2) > BCP (9:1) ratios. The highest accumulated amounts of phosphate phosphorus (PO<sub>4</sub>-P) and potassium (K) were 1953 and 1917 mg L<sup>−1</sup> in the PMC and PMCP, but the lowest in the BCP (9:1) were 223 and 1078 mg L<sup>−1</sup>, respectively. It was shown that the highest accumulated amount of silicon dioxide (SiO<sub>2</sub>) was 2329 mg L<sup>−1</sup> in the BCP (8:2), but the lowest in the PMC was 985 mg L<sup>−1</sup>. The estimations for accumulated NH<sub>4</sub>-N, PO<sub>4</sub>-P, K, and SiO<sub>2</sub> releasing amounts in all the treatments were significantly fitted with a modified Hyperbola model. The optimum mixing rate was estimated to be BCP (2:8). Therefore, biochar pellets might be useful in obtaining basic information on slow-release fertilizer for sustainable agriculture. |
topic |
biochar pellet modified Hyperbola model nutrient release pelletization pig manure compost |
url |
https://www.mdpi.com/2076-3417/8/11/2274 |
work_keys_str_mv |
AT joungdushin optimizationofblendedbiocharpelletbytheuseofnutrientreleasingmodel AT sangwonpark optimizationofblendedbiocharpelletbytheuseofnutrientreleasingmodel |
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