TY - JOUR
T1 - Dodecanoyl chloride modified starch particles
T2 - A candidate for the removal of hydrocarbons and heavy metals in wastewater
AU - J．, Leal Castañeda E.
AU - J．, Meléndez Estrada
AU - G．, Toscano Flores L.
N1 - Publisher Copyright:
© 2022
PY - 2023/4
Y1 - 2023/4
N2 - In the last decade, global research on biodegradable materials for wastewater treatment has increased due to the fact that its volume has increased significantly. Native quinoa starch (NQS) and modified quinoa starch (MQS) with Dodecanoyl Chloride (DC) were used to obtain particles that interact with cationic molecules, oils, and heavy metals such as Cd, Hg, Pb, and As due to exposure of the -OH group during esterification, thus improving the interaction with divalent metal ions. With the chemical modification carried out, a greater affinity with oily agents was noted on the surface of the granule, obtaining more compact agglomerates or flocs which were more stable than those generated with the NQS. The pH of the solution was a determining factor for the stability of the emulsion generated, efficiency of oil removal (92%), and decrease in turbidity (98%) and chemical oxygen demand COD (87%). The removal of heavy metals was more efficient using NQS with 85% on average for the metals used in the synthetic wastewater, while for the NQS removal reached on average 60% compared to MQS.
AB - In the last decade, global research on biodegradable materials for wastewater treatment has increased due to the fact that its volume has increased significantly. Native quinoa starch (NQS) and modified quinoa starch (MQS) with Dodecanoyl Chloride (DC) were used to obtain particles that interact with cationic molecules, oils, and heavy metals such as Cd, Hg, Pb, and As due to exposure of the -OH group during esterification, thus improving the interaction with divalent metal ions. With the chemical modification carried out, a greater affinity with oily agents was noted on the surface of the granule, obtaining more compact agglomerates or flocs which were more stable than those generated with the NQS. The pH of the solution was a determining factor for the stability of the emulsion generated, efficiency of oil removal (92%), and decrease in turbidity (98%) and chemical oxygen demand COD (87%). The removal of heavy metals was more efficient using NQS with 85% on average for the metals used in the synthetic wastewater, while for the NQS removal reached on average 60% compared to MQS.
KW - Biocoagulant starch
KW - Fatty acids chloride
KW - Heavy metals remotion
KW - Modified starch
KW - Natural coagulants
KW - Water waste treatment
UR - http://www.scopus.com/inward/record.url?scp=85145161966&partnerID=8YFLogxK
U2 - 10.1016/j.envadv.2022.100333
DO - 10.1016/j.envadv.2022.100333
M3 - Artículo
SN - 2666-7657
VL - 11
JO - Environmental Advances
JF - Environmental Advances
M1 - 100333
ER -