TY - JOUR
T1 - Fate of mercury in a terrestial biological lab process using Polypogon monspeliensis and Cyperus odoratus
AU - García-Mercado, Héctor Daniel
AU - Fernández-Villagómez, Georgina
AU - Garzón-Zúñiga, Marco Antonio
AU - Durán-Domínguez-de-Bazúa, María del Carmen
N1 - Publisher Copyright:
© 2019, © 2019 Taylor & Francis Group, LLC.
PY - 2019/10/15
Y1 - 2019/10/15
N2 - Mercury has been extracted in Queretaro, Mexico since the 1960s. The mining wastes were open-air disposal and these mercury wastes have polluted the zone. The aim of this research was to evaluate mercury's fate in lab scale terrestrial reactors considering the following mercury species: soluble, interchangeable, strongly bound, organic, and residual ones. Soils were sampled in two former mines of Pinal de Amoles, Queretaro, Mexico (N 20° 58′ to 21° 21′ and West 99° 26′ to 99° 43′) with initial mercury concentrations were 424 ± 29 and 433 ± 12 mg kg−1 for “La Lorena” and “San Jose” former mines, respectively. Two vegetal species Polypogon monspeliensis and Cyperus odoratus were used and 20 reactors were constructed for the lab process. Total mercury was removed to 49–79% from both soils. Mercury elemental, exchangeable, and organic species had the most removal or exchange in the process. Metal uptake, by the plants, was of 5–6% for P. monspeliensis and 5–15% for C. odoratus. Also, mercury fate was estimated to the atmosphere to be 3.3–4.5 mg m−2 h−1 for both soils.
AB - Mercury has been extracted in Queretaro, Mexico since the 1960s. The mining wastes were open-air disposal and these mercury wastes have polluted the zone. The aim of this research was to evaluate mercury's fate in lab scale terrestrial reactors considering the following mercury species: soluble, interchangeable, strongly bound, organic, and residual ones. Soils were sampled in two former mines of Pinal de Amoles, Queretaro, Mexico (N 20° 58′ to 21° 21′ and West 99° 26′ to 99° 43′) with initial mercury concentrations were 424 ± 29 and 433 ± 12 mg kg−1 for “La Lorena” and “San Jose” former mines, respectively. Two vegetal species Polypogon monspeliensis and Cyperus odoratus were used and 20 reactors were constructed for the lab process. Total mercury was removed to 49–79% from both soils. Mercury elemental, exchangeable, and organic species had the most removal or exchange in the process. Metal uptake, by the plants, was of 5–6% for P. monspeliensis and 5–15% for C. odoratus. Also, mercury fate was estimated to the atmosphere to be 3.3–4.5 mg m−2 h−1 for both soils.
KW - Cyperus odoratus
KW - Mercury waste
KW - Polypogon monspeliensis
KW - mercury speciation
UR - http://www.scopus.com/inward/record.url?scp=85067439566&partnerID=8YFLogxK
U2 - 10.1080/15226514.2019.1612842
DO - 10.1080/15226514.2019.1612842
M3 - Artículo
C2 - 31165622
AN - SCOPUS:85067439566
SN - 1522-6514
VL - 21
SP - 1170
EP - 1178
JO - International Journal of Phytoremediation
JF - International Journal of Phytoremediation
IS - 12
ER -