Removal of arsenic /V) in aqueous solution by modified fungal biomass of aspergillus Niger

被引：3
作者：
Santos-Domínguez E.E. [1 ]
Vargas-Morales J.M. [1 ]
Cárdenas-González J.F. [2 ]
Acosta-Rodríguez I. [1 ]
机构：
[1] Universidad Autónoma de San Luis Potosí, Facultad de Ciencias Químicas, Centro de Investigación y de Estudios de Posgrado, Laboratorio de Micología Experimental, Zona Universitaria, Av. Dr. Manuel Nava No. 6, San Luis Potosí, S.L.P.
[2] Universidad Autónoma de San Luis Potosí, Unidad Académica Multidisciplinaria Zona Media., Carretera Río Verde san Ciro Km 4.5., Colonia Puente del Carmen Río Verde San Luis Potosí
来源：
| 2017年 / Centro de Informacion Tecnologica卷 / 28期
关键词：
Arsenic; Bioadsorption; Bioremediation; Cellular fungal biomass modified;
D O I：
10.4067/S0718-07642017000600006
中图分类号：
学科分类号：
摘要：
The removal capacity of arsenic (As V) in aqueous solution by the modified fungal biomass of Aspergillus Niger, by atomic absorption spectrometry, was analyzed. Arsenic contamination is very serious in Mexico, it affects almost all populations, and the removal techniques are very expensive and not very efficient. In this study, the highest bioadsorption (69% with 1 mg L-1of the metalloid) was at 24 hours at pH 6.0, 28oC and 1 g of modified biomass. With respect to the temperature, the highest removal was at 28oC, with a 69% removal in 24 hours. At higher concentration of arsenic the removal was lower, and by increasing the concentration of the bioadsorbent, the removal is more efficient (96% with 5 g of biomass). Additionally, the biomass efficiently removes the metalloid in situ (56% removal in natural water contaminated with 1 mg 100 mL-1of As (V) in 24 hours with 1 g of biomass). Therefore, the modified biomass can be used to eliminate arsenic from industrial wastewater.
引用
收藏
页码：45 / 52
页数：7
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