Heavy Metal Accumulation in Sediment and Removal Efficiency in the Stabilization Ponds with the Hydrocotyle ranunculoides Filter

Journal of Ecological Engineering

Wilfredo Bulege-Gutiérrez¹  Heidi De la Cruz-Solano²  María Custodio²  Edith Pilar Orellana-Mendoza²  Richard Peñaloza²  Rebeca Quispe-Mendoza² 

[1] Universidad Continental, Av. San Carlos N° 1980, Huancayo, Perú.;Universidad Nacional del Centro del Perú, Centro de Investigación en Medicina de Altura y Medio Ambiente, Av. Mariscal Castilla N° 3909-4089, Huancayo-Perú.;

关键词: heavy metals;    removal efficiency;    sediment quality;    stabilization ponds;    hydrocotyle ranunculoides;   

DOI  :  10.12911/22998993/122189

来源: DOAJ

【 摘 要 】

The heavy metal accumulation in the sediment and removal efficiency in stabilization ponds with Hydrocotyle ranunculoides filter were evaluated. Sediment and water were sampled in June, July and August 2018. The sediment sampling for each lagoon was conducted at three sites forming a composite sample. The water samples were collected in the tributary and effluent pipelines to determine the heavy metal concentration and removal efficiency by Hydrocotyle ranunculoides. The determination of heavy metals was performed with the method of atomic flame absorption spectrophotometry. The mean concentration of heavy metals in the sediment, in a descending order, was: Fe > Zn > Pb > Cu > Cd. The concentrations of these metals ranged from 998.0 to 1365.02, from 488.01 to 600.30, from 88.23 to 95.01, from 1.47 to 1.53 and from 0.01 to 0.13 mg/Kg, respectively. In the four stabilization ponds, the pollution factor values for Cd, Cu and Fe qualified as low pollution factor. While for Zn and Pb, they qualified as moderate pollution factors. The heavy metal removal rates from the water varied by metal.

【 授权许可】

Unknown