Characterization of Biochar and Humic Acid and  their Effect on Soil Properties in Maize

Sailaja, P. Madhavi V.; Hussain, Tahira

doi:10.20546/ijcmas.2017.609.054

Cited by 2 publications

(1 citation statement)

References 15 publications

(13 reference statements)

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“…Recently, pre-and post-pyrolysis fabrication of biochar with foreign materials and its combination with various solvent and organic materials (biochar composite) has gained great attention, since such kinds of surface and chemical modifications improve biochar's efficiency as a soil amendment, further refining its adsorption capacity for organic and inorganic pollutants in solid and aqueous phase and enhancing crop productivity. Madhavi et al [18] reported an increase in soil cation exchange capacity (CEC) and maize crop production upon the integrated application of biochar combined with humic acid and NPK. Zhang et al [19] found a significant increase in (48.9% and 55%) removal of Cd and Pb by application of humic acid and rock phosphate-activated biochar.…”

Section: Introductionmentioning

confidence: 99%

Ball Mill, Humic Acid, and Rock Phosphate-Modified Conocarpus Biochar for Efficient Removal of Heavy Metals from Contaminated Water

et al. 2023

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An increasing trend of anthropogenic activities such as urbanization and industrialization has resulted in induction and accumulation of various kinds of heavy metals in the environment, which ultimately has disturbed the biogeochemical balance. Therefore, the present study was conducted to probe the efficiency of conocarpus (Conocarpus erectus L.) waste-derived biochar and its modified derivatives for the removal of lead (Pb), cadmium (Cd), copper (Cu), and zinc (Zn) from aqueous solutions. Biochar was produced at 600 °C and modified with humic acid (1:10 w/v ratio) and rock phosphate (0.5:1 w/w ratio). Additionally, produced biochar, as well as humic acid and rock phosphate-modified biochars, were subjected to ball milling separately. Equilibrium and kinetics batch experiments were conducted to investigate heavy metals adsorption on synthesized adsorbents. Adsorption isotherms and kinetics models were employed to explore the adsorption efficiency of produced materials for metals adsorption. Among all the applied adsorbents, ball-milled biochars showed comparatively higher adsorption compared to un-milled biochars. Humic acid and rock phosphate-modified milled biochar showed the highest adsorption capacity for Pb (18.85 mg g−1), while rock phosphate-modified milled biochar showed the highest adsorption capacity for Cu and Zn (24.02 mg g−1 and 187.14 mg g−1), and humic acid modified biochar adsorbed maximum Cd (30.89 mg g−1). Adsorption isotherm study confirmed Freundlich as the best-suited model (R2= 0.99), while kinetics adsorption was well described by the pseudo-second-order (R2 = 0.99). Hence, it was concluded that ball-milled biochar modified with humic acid and rock phosphate could potentially remove heavy metals from contaminated water.

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Section: Introductionmentioning

confidence: 99%

Ball Mill, Humic Acid, and Rock Phosphate-Modified Conocarpus Biochar for Efficient Removal of Heavy Metals from Contaminated Water

et al. 2023

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Effect of biochar from young coconut waste to improve chemical properties of ultisols and growth coffee [Coffea arabica L.] plant seeds

Herviyanti

Maulana

Prima

et al. 2020

IOP Conf. Ser.: Earth Environ. Sci.

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This study aims to determine the effect of biochar from young coconut [Cocus nucifera L.] waste to improve the chemical properties of Ultisols and the growth of coffee [Coffea arabica] plant seeds. The research has been carried out at the Laboratory of Chemistry and Soil Fertility and Experimental wirehouse of the Faculty of Agriculture, Andalas University, Padang. This research used a Completely Randomized Design [CRD] with 3 replications. The formulation is biochar of young coconut waste/8 kg of soil ie: A = 0.0%; B = 0.5% [173 g]; C = 1.0% [348 g]; D = 1.5% [520 g]; and E = 2.0% [693 g]. The results of the utilization of young coconut waste as a source of biochar could improve the chemical properties of Ultisols. Addition 2% [693 g.8kg/lof soil] of biochar young coconut waste can increase pH and decrease Al and H-exch, so that increase available P, organic C and CEC by 1.70 ppm; 0.99% and 9.12 cmol[+].kg−1; compared to 0% of biochar. Application 1.5% [520g.8kg/lof soil] almost the same 2% of biochar young coconut waste to increase total N and exchangeable of the cation [K, Ca, and Mg]. Whereas addition up to 2% of biochar young coconut waste has not shown a significant increase in growth coffee [Coffee arabica L.] plant seed at the age of 3 months [12 after week planting].

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Characterization of Biochar and Humic Acid and their Effect on Soil Properties in Maize

Cited by 2 publications

References 15 publications

Ball Mill, Humic Acid, and Rock Phosphate-Modified Conocarpus Biochar for Efficient Removal of Heavy Metals from Contaminated Water

Ball Mill, Humic Acid, and Rock Phosphate-Modified Conocarpus Biochar for Efficient Removal of Heavy Metals from Contaminated Water

Effect of biochar from young coconut waste to improve chemical properties of ultisols and growth coffee [Coffea arabica L.] plant seeds

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