The effect of carrot pulp derived biochar on the adsorption of cadmium and lead in an acidic soil

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

GHOLAMI L.; RAHIMI GH.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Journal of Water and Soil Conservation Year:2020 | Volume:27 | Issue:2 Page(s): 1-23

Download Full-Text

Persian Verion

View:

674

Download:

Cites:

Information Journal Paper

Title

The effect of carrot pulp derived biochar on the adsorption of cadmium and lead in an acidic soil

Author(s)

GHOLAMI L. | RAHIMI GH. | Issue Writer Certificate

Keywords

AdsorptionQ1

BiocharQ1

CadmiumQ2

KineticQ2

LeadQ2

Abstract

Background and Objectives: Soil contamination with heavy metals has become a global concern because of its adverse effects on ecosystem health and food security. Soil amendments including Biochar can reduce the bioavailability of heavy metals in contaminated soils and reduce their risk of entering the food chain. Biochar is a carbon-rich material obtained by pyrolysis of biomass, such as agricultural residues and manures in conditions without oxygen or with limited oxygen content. Recent studies have shown that Biochar also has great potential for immobilizing heavy metals in soil, because of its highly porous structure, active functional groups, and generally high pH and cation exchange capacity (CEC). In the country, most of the studies on Biochar are related to calcareous soils or aqueous solutions and Biochar has received little attention as an efficient adsorbent for the Adsorption of heavy metals in acidic soils. The goal of this study was to investigate the effect of Biochar derived from carrot pulp on properties of acidic soil and Adsorption of Lead and Cadmium in soil. Materials and Methods: In this study, Biochar derived from carrot pulp was produced through pyrolysis at 550 ° C with a heating rate of 25 ° C min-1. Carrot pulp Biochar was added to acidic soil at 0, 4 and 8% application rates and was incubated for 60 days. After the incubation period, to investigate the effects of time on Cd and Pb Adsorption, 25 mL of 400 mg L− 1 of Cd and Pb were added to 1 g of soil samples and then samples were shaken for different times (4, 8, 12, 16, 20, 24, 28, 32, 36 and 40 h). Then, the concentration of Cd and Pb were measured. The results were fitted to pseudo-first-order, pseudo-second-order, and Elovich Kinetic models. To determine the Adsorption isotherms of Cd and Pb, 25 mL of heavy metals solution with concentrations ranging from 0 to 400 mg L− 1 were added to 1 g of soil samples, and then samples were shaken for 24 h, and finally the Adsorption data were fitted to Langmuir, Freundlich and Temkin isotherm models. Results: The application of Biochar significantly increased the pH, cation exchange capacity and electrical conductivity of the soil, although the 8% application rate more effective than the 4% application rate in increasing the pH, cation exchange capacity and electrical conductivity of the soil. The results of fitting the data to the Langmuir, Freundlich and Temkin isotherm models showed that the surface Adsorption of Cd and Pb on the control soil and soil treated with Biochar is consistent with Langmuir isotherm model. The pseudo-second-order Kinetic model was introduced as the best Kinetic model of Adsorption of Cd and Pb. The maximum Adsorption capacity of Cd and Pb increased from 649. 27 mg kg-1 and 846. 71 mg kg-1 (in control soil) to 2078. 29 mg kg-1 and 3182. 7 mg kg-1 (in soil treated with 8% Biochar), respectively. Conclusion: This study showed that carrot pulp Biochar increased the Adsorption of Cd and Pb in acidic soil by increasing the pH and cation exchange capacity of the soil. Therefore, carrot pulp Biochar can be used as an effective and inexpensive adsorbent to improve acidic soil properties and increase the Adsorption of Cd and Pb in soil.

Cites

No record.

References

No record.

Cite

APA: Copy

GHOLAMI, L., & RAHIMI, GH.. (2020). The effect of carrot pulp derived biochar on the adsorption of cadmium and lead in an acidic soil. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), 27(2 ), 1-23. SID. https://sid.ir/paper/398989/en

Vancouver: Copy

GHOLAMI L., RAHIMI GH.. The effect of carrot pulp derived biochar on the adsorption of cadmium and lead in an acidic soil. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)[Internet]. 2020;27(2 ):1-23. Available from: https://sid.ir/paper/398989/en

IEEE: Copy

L. GHOLAMI, and GH. RAHIMI, “The effect of carrot pulp derived biochar on the adsorption of cadmium and lead in an acidic soil,” JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), vol. 27, no. 2 , pp. 1–23, 2020, [Online]. Available: https://sid.ir/paper/398989/en

Related Journal Papers