Pyrolysis of biosolids with waste cardboard: effect of operating parameters, feedstock size and blending ratio

Zuhara, Shifa; Pradhan, Snigdhendubala; McKay, Gordon

doi:10.1007/s13762-023-04963-0

Cited by 4 publications

(1 citation statement)

References 54 publications

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“…Biochar is a suitable route to achieve these goals and has the potential to enhance plant growth by enhancing nutrient and water retention as a soil amendment [14,15]. Biochar can also provide income for farmers and landowners for carbon sequestration in crop land if carbon offset markets developed.…”

Section: Introductionmentioning

confidence: 99%

Application of Pistachio Shell Biochar with Organic Cow Manure for Sustainable Agriculture Practice

Pradhan,

Parthasarathy,

Mackey

et al. 2024

Preprint

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Sustainable crop production supports food security by mitigating water and nutrient stress from manures by excessively drained water. Cow manure is a good nutrient resource to enhance soil fertility and plant growth but requires a suitable amender to reduce the nutrients loss by leaching. Worldwide more than 20400 metric tonnes of pistachios were consumed where roughly 30% of the weight of the nut is the shell and could be a good feedstock for biochar production. Therefore, this study aims to produce biochar from pistachio shell by pyrolysis process at three different temperatures 350 to 550°C and by the analysis of various properties towards agriculture, the biochar at 450 ˚C was amended with 0% (control), 2%, 4% and 8% to the manure for eggplant growth (Solanum melongena). Out of all fractions of biochar application, 2% biochar has virtuous performance to increase 5.63 ± 1.45 cm of plant height, 1.33 ± 4.79 cm leaf length and 1.90 ± 4.43 cm leaf width compared to the control. The leaf chlorophyl content and plant biomass were also significantly (p = 0.02) increased compared to the control condition. However, there is no statistical difference was noticed in stomatal conductance and water retention capacity (p > 0.11) due to greater plant growth. We concluded from this study, a lower fraction of biochar application with manure is beneficial to reduce nutrient leaching from the manure. Under the circular economy and frameworks of sustainability, pistachio shell biochar application as an amendment in crop production has been a high legislative focus on valorizing food waste.

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Section: Introductionmentioning

confidence: 99%

Application of Pistachio Shell Biochar with Organic Cow Manure for Sustainable Agriculture Practice

Pradhan,

Parthasarathy,

Mackey

et al. 2024

Preprint

View full text Add to dashboard Cite

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Effect of Pistachio Shell Biochar and Organic Cow Manure Application on Plant Growth, Water Retention Capacity and Nutrient Stress Mitigation

Pradhan,

Parthasarathy,

Mackey

et al. 2024

Waste Biomass Valor

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Sustainable crop production supports food security by mitigating water and nutrient stress from manures by excessively drained water. Cow manure is a good nutrient resource to enhance soil fertility and plant growth but requires a suitable amender to reduce the nutrients loss by leaching. Worldwide more than 20,400 metric tonnes of pistachios were consumed where roughly 30% of the weight of the nut is the shell which could be a good feedstock for biochar production. Therefore, this study was conducted to produce biochar from pistachio shell by pyrolysis process at three different temperatures 350 to 550 °C and based on various properties characterization, the biochar at 450 °C was amended with 0% (control), 2%, 4% and 8% to the cow manure for eggplant growth (Solanum melongena). Out of all fractions of biochar application, 2% biochar has virtuous performance to increase 5.63 ± 1.45 cm of plant height, 1.33 ± 4.79 cm leaf length and 1.90 ± 4.43 cm leaf width over the control. The leaf chlorophyl content and plant biomass were also significantly (p = 0.02) increased compared to the control. The lower fraction of biochar application showed almost similar water retention capacity with control (p > 0.11) due to the better plant growth. Based on the findings of this study, it is proposed that lower fraction of biochar application with manure is a constructive solution to improve soil quality, reduce nutrient loss and eggplant growth. Under the circular economy and frameworks of sustainability, pistachio shell biochar production has a high legislative attention on valorizing nutshell wastes. Graphical Abstract

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Food waste biochar: a sustainable solution for agriculture application and soil–water remediation

Pradhan,

Parthasarathy,

Mackey

et al. 2024

Carbon Res.

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Biochar is a promising pyrolysed carbon-enriched soil amendment and has excellent properties for agriculture production and to remediate environmental pollution. A set of reviews were conducted on biochar production by pyrolysis process from various waste biomass which has drawn extensive interest due to the low cost of production with several benefits. As many potential technologies have been developed, there are still several knowledge gaps that have been identified for some key points to contribute a comprehensive study towards soil fertility, nutrient and water retention, soil microbial activity, plant growth and yield, pollution remediation, mitigation of greenhouse gas emission and an improvement in the farmer’s economy to achieve maximum profit by adopting environmentally friendly technique “pyrolysis”. Therefore, this review explored a detailed study on food waste biochar production by the pyrolysis process and its impact on different applications as an amendment. Slow pyrolysis process at low and medium temperatures is a potential amendment for agriculture production and soil and water remediation by enhancing biochar properties like carbon, BET surface area, cation exchange capacity, zeta potential, and nutrient content, etc. with minimum ash content. The biochar enhances soil water and nutrient retention capacity, crop yield, and improved microbial community at different soil quality. Additionally, food waste to biochar is a realistic adsorbent and economical carbon sequester to mitigate GHG emissions. This review conducted a brief assessment of the knowledge gaps and future research directions for researchers, encouraging investigators, stakeholders, and policymakers to make the best possible decision for food waste valorization.

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Pyrolysis of biosolids with waste cardboard: effect of operating parameters, feedstock size and blending ratio

Cited by 4 publications

References 54 publications

Application of Pistachio Shell Biochar with Organic Cow Manure for Sustainable Agriculture Practice

Application of Pistachio Shell Biochar with Organic Cow Manure for Sustainable Agriculture Practice

Effect of Pistachio Shell Biochar and Organic Cow Manure Application on Plant Growth, Water Retention Capacity and Nutrient Stress Mitigation

Food waste biochar: a sustainable solution for agriculture application and soil–water remediation

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