Biodegradation of Yerba Mate Waste Based Fertilizer Capsules. Effect of Temperature

Llive, Lenin; Bruno, Estela; García, Antonio D. Molina; Teixeira, Aline Schneider; Deladino, Lorena

doi:10.1007/s10924-019-01433-y

Cited by 8 publications

(6 citation statements)

References 46 publications

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“…For Poly3, the former model suggested the Fickian release and the latter model suggested polymer coating relaxation. A similar contradicting prediction between these models was reported in other studies [38,39]. This could be ascribed to multiple mechanisms involved in the nutrient release, other than those investigated by these models [40].…”

Section: Modelling Of Release Kineticsmentioning

confidence: 38%

Formulation and Characterisation of Polyester-Lignite Composite Coated Controlled-Release Fertilisers

Abhiram

Bishop

Jeyakumar

et al. 2022

Preprint

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Two polyester-lignite composite coated urea controlled-release fertilisers (CRFs; Poly3 and Poly5) were developed and their physicochemical properties were studied. Both these CRFs significantly (p < 0.05) extended the urea release compared to uncoated urea; Poly3 and Poly5 by 117 and 172 hours, respectively. The urea release characteristics of Poly5 were further enhanced by linseed oil application (Poly5-linseed). The SEM images demonstrated the coatings were in contact with the urea and encase urea particles completely with the average coating thickness of 167.2 ± 15 µm. The new interactions between polyester and lignite in the composite coating were confirmed by the FTIR analysis. Polyester-calcium carbonate (Polyester-CaCO3) coated CRFs (Calc3 & Calc5) were developed using CaCO3 as a filler in place of lignite and the urea dissolution rate was compared with Poly3 and Poly5. The urea release times for the polyester- CaCO3 formulations, 48h and 72h, were significantly (P < 0.05) lower than the polyester-lignite formulation, showing that lignite imparted greater control over release time than CaCO3. Findings from this work showed that polyester-lignite composites can be used as a coating material for CRFs.

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Section: Modelling Of Release Kineticsmentioning

confidence: 38%

Formulation and Characterisation of Polyester-Lignite Composite Coated Controlled-Release Fertilisers

Abhiram

Bishop

Jeyakumar

et al. 2022

Preprint

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show abstract

“…Column leaching experiments were carried out to investigate the slow-release performance of the prepared BSRFs in soil. The detailed experimental procedures were as follows (Llive et al 2019): 150 g of vermiculite (60% humidity) was placed in each column, as shown in Fig. 1c.…”

Section: Slow-release Performance Of Various Bsrfsmentioning

confidence: 99%

Co-incorporation of hydrotalcite and starch into biochar-based fertilizers for the synthesis of slow-release fertilizers with improved water retention

Cai

et al. 2023

Biochar

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The unsatisfactory nutrient slow-release and water-retention performance of traditional biochar-based compound fertilizers (BCF) severely limit their practical application. Herein, a new type of slow-release fertilizer with high water retention was fabricated via the incorporation of hydrotalcite and starch into BCF, named as HS-BCF. The water-retention and nutrient releasing performance of the prepared HS-BCF and related nutrient slow-release mechanism were investigated. The results showed that the incorporation of hydrotalcite and starch into BCF could increase the soil water-retention ratio by 5–10% points. The accumulated N, P, and K leaching amounts of HS-BCF in soil within 30 days were 49.4%, 13.3%, and 87.4% of BCF at most, respectively. Kinetic analysis indicated that the release of nutrients from HS-BCF was attributed to the coupling of the diffusion-controlled and relaxation-controlled mechanism. Moreover, hydrotalcite could bind with P in HS-BCF, contributing to the enhanced durability of P in HS-BCF. Finally, pot experiments showed that the N–P–K utilization efficiencies of HS-BCF were all higher than those of BCF due to a better synchronization between the nutrient release of HS-BCF and the uptake of tomato plants. Overall, the study may provide a promising strategy for simultaneously improving the water-retention and slow-release performance of traditional biochar-based fertilizers. Graphical Abstract

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“…A similar contradicting prediction between these models was reported in other studies. 40,41 This could be ascribed to multiple mechanisms involved in the nutrient release, other than those investigated by these models. 42 The initial coefficient of diffusion (Df) was linked to the coating thickness and decreased with increasing thickness for all SRFs.…”

Section: Modeling Of Release Kineticsmentioning

confidence: 99%

Formulation and characterization of polyester-lignite composite coated slow-release fertilizers

et al. 2022

View full text Add to dashboard Cite

Two polyester-lignite composite coated urea slow-release fertilizers (SRFs; Poly3 and Poly5) were developed and their physicochemical properties were studied. Both these SRFs significantly (p < 0.05) extended the urea release compared to uncoated urea; Poly3 and Poly5 by 117 and 172 h, respectively. The urea release characteristics of Poly5 were further enhanced by linseed oil application (Poly5-linseed). The SEM images demonstrated the coatings were in contact with the urea and encase urea particles completely with the average coating thickness of 167.2 ± 15 µm. The new interactions between polyester and lignite in the composite coating were confirmed by the FTIR analysis. Polyester-calcium carbonate (Polyester-CaCO3) coated SRFs (Calc3 and Calc5) were developed using CaCO3 as a filler in place of lignite and the urea dissolution rate was compared with Poly3 and Poly5. The urea release times for the polyester-CaCO3 formulations, 48 and 72 h, were significantly (P < 0.05) lower than the polyester-lignite formulation, showing that lignite imparted greater control over release time than CaCO3. Findings from this work showed that polyester-lignite composites can be used as a coating material for SRFs. Graphical abstract

show abstract

Biodegradation of Yerba Mate Waste Based Fertilizer Capsules. Effect of Temperature

Cited by 8 publications

References 46 publications

Formulation and Characterisation of Polyester-Lignite Composite Coated Controlled-Release Fertilisers

Formulation and Characterisation of Polyester-Lignite Composite Coated Controlled-Release Fertilisers

Co-incorporation of hydrotalcite and starch into biochar-based fertilizers for the synthesis of slow-release fertilizers with improved water retention

Formulation and characterization of polyester-lignite composite coated slow-release fertilizers

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