Arsenic Biosorption by the Macroalgae Chondracanthus chamissoi and Cladophora sp.

• Autores: Otiniano, Nélida Milly, De La Cruz-Noriega, Magaly, Cabanillas-Chirinos, Luis, Rojas-Flores, Segundo, Muñoz-Ríos, Miguel A., Rojas-Villacorta, Walter, Robles-Castillo, Heber
• Formato: artículo
• Fecha de Publicación: 2022
• Institución: Universidad Autónoma del Perú
• Repositorio: AUTONOMA-Institucional
• Lenguaje: inglés
• OAI Identifier: oai:repositorio.autonoma.edu.pe:20.500.13067/2586
• Enlace del recurso: https://hdl.handle.net/20.500.13067/2586; https://doi.org/10.3390/pr10101967
• Nivel de acceso: acceso abierto
• Materia: Biosorption; Arsenic; Heavy metals; Chondracanthus chamissoi; Cladophora sp; https://purl.org/pe-repo/ocde/ford#2.07.00

The biosorption of arsenic (As) with macroalgae has aroused much interest as a clean and low-cost technology. To evaluate arsenic biosorption by Chondracanthus chamissoi and Cladophora sp., approximately 5 kg of algae was collected from Huanchaco’s beach and Sausacocha lake (Huamachuco), La Libertad. As biosorption was carried out in four column systems, with 2 g of algae pellets each, circulating As solutions of 0.25 and 1.25 ppm, respectively, at 300 mL/min cm2. As concentration was determined at 3 and 6 h of treatment by flame atomic absorption spectrophotometry. Data were analyzed using Student’s t-test with 95% confidence. At 6 h, Chondracanthus chamissoi presented an As biosorption of 95.76% in a 0.25 ppm mg/L solution and 85.33% in a 1.25 mg/L solution. Cladophora sp., at 6 h, presented an As biosorption of 95.76% in a 0.25 mg/L solution and 42.03% in a 1.25 mg/L solution. It was concluded that Chondracanthus chamissoi achieves higher percentages of biosorption than Cladophora sp. in solutions of 1.25 mg/L As (p < 0.05), and that there is no significant difference between the biosorption percentages of Chondracanthus chamissoi and Cladophora sp. in a 0.25 mg/L solution of As at 6 h of treatment (p > 0.05).