TY - JOUR
T1 - Contenido bioleaching of metals from machining process wastes
AU - Gómez-Ramírez, M.
AU - Rivas-Castillo, A. M.
AU - Moreno-Villanueva, F.
AU - Rojas-Avelizapa, N. G.
N1 - Publisher Copyright:
© 2021, Universidad Autonoma Metropolitana. All rights reserved.
PY - 2021/5/1
Y1 - 2021/5/1
N2 - The present study evaluates the ability of Acidithiobacillus thiooxidans DSM 26636 to grow and leach metals from industrial wastes (IW) containing245 differentModeladometalde la compositions,biodegradacióncodeden biorreactoresas IW-steeldeandlodosIW-scrap.de hidrocarburosFor this purpose,totales delbiolixiviationpetróleo was assessed during 21 days at 30°C and 150 rpm, with 1% (w/v) of IW pulp density. Microbial growth was evaluated periodically intemperizados en suelos y sedimentos by measuring sulfate production; pH and sulfuric acid concentration were also monitored, and metal bioleaching was evaluated by ICP-OES. Results showed(Biodegradationthat A. thiooxidansmodeling sulfur-oxidizingof sludge bioreactorsactivityof totalwaspetroleumhigher inhydrocarbonsthe presenceweatheringof IW-steel.in soilSpecifically, sulfates and sulfuric acid concentrations in IW-steel corresponded to 21,522 ± 1,059 mg/L and 0.0988 ± 0.0030 M at day 21, and sediments) respectively, and a pH diminution from 3.0 to 1.46 ± 0.10 was detected. In the case of IW-scrap, sulfate production only increased to up to 4,392 ± 335 mg/LS.A.onMedina-Moreno,day 21, and no S.pHHuerta-Ochoa,reduction wasC.A.detected.Lucho-Constantino,Besides, metalL. removalAguilera-Vázquez,was differentA. Jiménez-in IW-steel and IW-scrap. The results obtainedGonzálezreinforcey M. Gutiérrez-Rojasthe fact that A. thiooxidans DSM 26636 presents potential to be employed for the bio-treatment of high-metal-content 259 Crecimiento, industrial sobrevivencia residues, y adaptación and that de its Bifidobacterium biolixiviation infantis capability a condiciones strongly depends ácidas on the metal load present in them.
AB - The present study evaluates the ability of Acidithiobacillus thiooxidans DSM 26636 to grow and leach metals from industrial wastes (IW) containing245 differentModeladometalde la compositions,biodegradacióncodeden biorreactoresas IW-steeldeandlodosIW-scrap.de hidrocarburosFor this purpose,totales delbiolixiviationpetróleo was assessed during 21 days at 30°C and 150 rpm, with 1% (w/v) of IW pulp density. Microbial growth was evaluated periodically intemperizados en suelos y sedimentos by measuring sulfate production; pH and sulfuric acid concentration were also monitored, and metal bioleaching was evaluated by ICP-OES. Results showed(Biodegradationthat A. thiooxidansmodeling sulfur-oxidizingof sludge bioreactorsactivityof totalwaspetroleumhigher inhydrocarbonsthe presenceweatheringof IW-steel.in soilSpecifically, sulfates and sulfuric acid concentrations in IW-steel corresponded to 21,522 ± 1,059 mg/L and 0.0988 ± 0.0030 M at day 21, and sediments) respectively, and a pH diminution from 3.0 to 1.46 ± 0.10 was detected. In the case of IW-scrap, sulfate production only increased to up to 4,392 ± 335 mg/LS.A.onMedina-Moreno,day 21, and no S.pHHuerta-Ochoa,reduction wasC.A.detected.Lucho-Constantino,Besides, metalL. removalAguilera-Vázquez,was differentA. Jiménez-in IW-steel and IW-scrap. The results obtainedGonzálezreinforcey M. Gutiérrez-Rojasthe fact that A. thiooxidans DSM 26636 presents potential to be employed for the bio-treatment of high-metal-content 259 Crecimiento, industrial sobrevivencia residues, y adaptación and that de its Bifidobacterium biolixiviation infantis capability a condiciones strongly depends ácidas on the metal load present in them.
KW - Acidithiobacillus(Growth
KW - Infantisdirect bioleaching
KW - Sulfur-oxidizing activity
KW - Survivalbioleachingand adaptationof ofindustrialBifidobacteriumwastes
KW - Thiooxidans
KW - To acidic conditions)metals
UR - http://www.scopus.com/inward/record.url?scp=85108082734&partnerID=8YFLogxK
U2 - 10.24275/rmiq/Bio2079
DO - 10.24275/rmiq/Bio2079
M3 - Artículo
AN - SCOPUS:85108082734
SN - 1665-2738
VL - 20
SP - 751
EP - 759
JO - Revista Mexicana de Ingeniera Quimica
JF - Revista Mexicana de Ingeniera Quimica
IS - 2
ER -