Adsorption capacity of chelating agent to adsorb lead and arsenic. Issue 1 (February 2021)

• Record Type: Journal Article
• Authors: Sulastri, B N; Apriyani, S; Zu'amah, H; Ardiwinata, A N; Purbalisa, W
• Is Part Of: IOP conference series. Volume 648:Issue 1(2021)
• Publication Date: 2021-02
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/648/1/012210
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: The contamination of soils with heavy metals due to rapid industrialization, modern farming practices, and poor treatment of waste can damage the environment include agricultural lands. The excess concentration of heavy metals in soil should be minimized and removed for environment safety and agriculture sustainability. Remediation using adsorbent to remove heavy metal is a beneficial method for rehabilitating the contaminated site. The study aimed to determine the adsorption capacity of several chelating agents to adsorb heavy metals Lead (Pb) and Arsenic (As). The chelating agents used are chitosan, biochar-compost, zeolites, ammonium thiosulfate, and EDTA. The adsorption capacity was determined by applying the Langmuir isotherm model by varying the concentration of Pb and As at (0, 5, 10, 20, 40, 100, 200, 400) mg kg −1 . The adsorbed concentration of Pb and As was measured by AAS. The results revealed that zeolite has the highest maximum adsorption capacity for Pb and As of 5, 000 mg kg −1 and 3, 333.33 mg kg −1, respectively. Based on this study, biochar-compost, chitosan, zeolite, ammonium thiosulfate, and EDTA have potential as remediators for polluted agricultural land, and further research is needed.