TY - JOUR
T1 - Biodegradation of a mixture of the herbicides ametryn, and 2,4-dichlorophenoxyacetic acid (2,4-D) in a compartmentalized biofilm reactor
AU - Sandoval-Carrasco, Carlos A.
AU - Ahuatzi-Chacón, Deifilia
AU - Galíndez-Mayer, Juvencio
AU - Ruiz-Ordaz, Nora
AU - Juárez-Ramírez, Cleotilde
AU - Martínez-Jerónimo, Fernando
PY - 2013
Y1 - 2013
N2 - In this work, an efficient degradation process for the removal of 2,4-D and ametryn, together with organic and inorganic adjuvants used in the commercial formulations of both herbicides, was developed. Although both compounds are toxic for microbial communities, ametryn is markedly more toxic than 2,4-D. In spite of this, the microbial consortium used could resist loading rates up to 31.5mgL-1d-1 of ametryn, with removal efficiencies up to 97% for both herbicides. Thus, an alternative use of this consortium could be bioaugmentation, as a tool to protect the structure and function of an activated-sludge biota against ametryn or 2,4-D shock loads. The process was carried out in a lab-scale prototype of aerobic biobarrier constructed as a compartmentalized fixed film reactor with airlift recirculation of oxygenated liquid.
AB - In this work, an efficient degradation process for the removal of 2,4-D and ametryn, together with organic and inorganic adjuvants used in the commercial formulations of both herbicides, was developed. Although both compounds are toxic for microbial communities, ametryn is markedly more toxic than 2,4-D. In spite of this, the microbial consortium used could resist loading rates up to 31.5mgL-1d-1 of ametryn, with removal efficiencies up to 97% for both herbicides. Thus, an alternative use of this consortium could be bioaugmentation, as a tool to protect the structure and function of an activated-sludge biota against ametryn or 2,4-D shock loads. The process was carried out in a lab-scale prototype of aerobic biobarrier constructed as a compartmentalized fixed film reactor with airlift recirculation of oxygenated liquid.
KW - 2,4-D
KW - Ametryn
KW - Biodegradation
KW - Biofilm reactor
KW - Chryseobacterium
UR - http://www.scopus.com/inward/record.url?scp=84883463011&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2013.02.068
DO - 10.1016/j.biortech.2013.02.068
M3 - Artículo
SN - 0960-8524
VL - 145
SP - 33
EP - 36
JO - Bioresource Technology
JF - Bioresource Technology
ER -