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Interaction between Biochar and Algae on Problem Soil

Journal of Materials Science and Chemical Engineering 2024 1 citation ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Tazeen Fatima Khan, Abdullah Al Mamun Nipu

Summary

Researchers conducted an in-vitro experiment assessing interactions between different biochars and algae in problem soils, finding that tannery waste biochar adsorbed 147% more phosphorus than chicken litter biochar and 35% more than orange peel biochar. Addition of algal inoculation significantly reduced phosphorus adsorption across all biochar types, suggesting algae improve phosphorus availability in problematic agricultural soils.

Study Type In vitro

An in-vitro experiment was conducted to assess the interaction between biochar and algae on a problem soil. Experiments were performed with and without algae to observe the effectiveness of algae for overcoming the challenges posed by problem soils. At the end of incubation periods, the adsorption and desorption of phosphorus (P) on a problem soil vis-á-vis algal inoculation were determined. Our results showed that different types of biochars adsorbed different amounts of P suggesting that the source of biochar played a crucial role in determining its behavior towards P. Tannery waste biochar significantly adsorbed 147% and 35% more P compared to that of the chicken litter and orange peel biochars respectively. Significant reductions in adsorption were observed when the biochar was used in combination with the algae which could be due to the beneficial effects of algae leading to the amelioration of the problem soil. Adsorption was reduced to 34%, 24% and 20% for the orange peel biochar + algae, chicken litter biochar + algae and tannery waste biochar + algae, respectively compared to the corresponding biochars present as a single solid. Phosphorus (P) desorption was also reduced significantly in presence of algal inoculation. Overall our findings suggest that the application of algae along with biochar in the problem soil could reduce the adsorption of P which would influence the availability of P.

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