Next Article in Journal
Numerical Modeling of the Effects of Toe Configuration on Throughflow in Rockfill Dams
Next Article in Special Issue
Time Evolution Study of the Electric Field Distribution and Charge Density Due to Ion Movement in Salty Water
Previous Article in Journal
Characterization of Export Regimes in Concentration–Discharge Plots via an Advanced Time-Series Model and Event-Based Sampling Strategies
Previous Article in Special Issue
Removal of Heavy Metals during Primary Treatment of Municipal Wastewater and Possibilities of Enhanced Removal: A Review

Removal of Cobalt (II) from Waters Contaminated by the Biomass of Eichhornia crassipes

Laboratorio de Micología Experimental, Facultad de Ciencias Químicas, Universidad Autónoma de San Luís Potosí, 78320 San Luís Potosí, Mexico
Unidad Académica Multidisciplinaria Zona Media, Universidad Autónoma de San Luís Potosí, 79617 Ríoverde, Mexico
Area Académica de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de Hidalgo, 43600 Hidalgo, Mexico
Author to whom correspondence should be addressed.
Academic Editors: Cristina Palet and Julio Bastos-Arrieta
Water 2021, 13(13), 1725;
Received: 19 May 2021 / Revised: 10 June 2021 / Accepted: 18 June 2021 / Published: 22 June 2021
Due to the increase in contamination of aquatic niches by different heavy metals, different technologies have been studied to eliminate these pollutants from contaminated aquatic sources. So the objective of this work was to determine the removal of cobalt (II) in aqueous solution by the biomass of the aquatic lily or water hyacinth (Eichhornia crassipes) which, is one of the main weeds present in fresh water, due to its rapid reproduction, growth, and high competitiveness, by the colorimetric method of the methyl isobutyl ketone. The removal was evaluated at different pHs (4.0–8.0) for 28 h. The effect of temperature in the range from 20 °C to 50 °C and the removal at different initial concentrations of cobalt (II) of 100 to 500 mg/L was also studied. The highest bioadsorption (100 mg/L) was at 28 h, at pH 5.0 and 28 °C, with a removal capacity of 73.1%, which is like some reports in the literature. Regarding the temperature, the highest removal was at 50 °C, at 28 h, with a removal of 89%. At the metal and biomass concentrations analyzed, its removal was 82% with 400–500 mg/L, and 100% with 5 g of natural biomass at 20 h. In addition, this completely removes the metal in situ (100 mg/L in contaminated water, at 7 days of incubation, with 10 g of natural biomass in 100 mL). So, the natural biomass can be used to remove it from industrial wastewater, even if in vivo, only eliminate 17.3% in 4 weeks. View Full-Text
Keywords: contaminants; heavy metals; removal; cobalt; water hyacinth; biomass contaminants; heavy metals; removal; cobalt; water hyacinth; biomass
Show Figures

Figure 1

MDPI and ACS Style

Acosta-Rodríguez, I.; Rodríguez-Pérez, A.; Pacheco-Castillo, N.C.; Enríquez-Domínguez, E.; Cárdenas-González, J.F.; Martínez-Juárez, V.-M. Removal of Cobalt (II) from Waters Contaminated by the Biomass of Eichhornia crassipes. Water 2021, 13, 1725.

AMA Style

Acosta-Rodríguez I, Rodríguez-Pérez A, Pacheco-Castillo NC, Enríquez-Domínguez E, Cárdenas-González JF, Martínez-Juárez V-M. Removal of Cobalt (II) from Waters Contaminated by the Biomass of Eichhornia crassipes. Water. 2021; 13(13):1725.

Chicago/Turabian Style

Acosta-Rodríguez, Ismael, Adriana Rodríguez-Pérez, Nancy Cecilia Pacheco-Castillo, Erika Enríquez-Domínguez, Juan Fernando Cárdenas-González, and Víctor-Manuel Martínez-Juárez. 2021. "Removal of Cobalt (II) from Waters Contaminated by the Biomass of Eichhornia crassipes" Water 13, no. 13: 1725.

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop