Removal of heavy metals by an enriched consortium.
An enriched consortium obtained from lake-sediment was developed for the removal of heavy metals such as Cu, Pb, Cr, Ni, and Zn from heavy metal-contaminated water. The removal efficiency of heavy metals in a shaking condition was generally higher than that in the static state. After the fifteenth enrichment with assorted heavy metals, the removal efficiencies in the shaking and static condition at an average concentration of 100 mg/L of each heavy metal were approximately 99 approximately 100% and 95 approximately 100%, respectively, depending on the type of heavy metal. An aerobically grown, pure culture isolated from an enriched culture was analyzed by 16S rRNA sequencing and identified as Ralstonia sp. HM-1. This strain was found to remove various heavy metals with an efficiency of approximately 97 approximately 100% at an average concentration of 200 mg/L of each heavy metal.
Lee
Eun Young
EY
Department of Environmental Engineering, University of Suwon, Hwaseong 445-743, Republic of Korea.
Lim
Joung Soo
JS
Oh
Kyung Hwan
KH
Lee
Jae Yeon
JY
Kim
Seog Ku
SK
Lee
Yoo Kyung
YK
Kim
Keun
K
D001419:Bacteria / Q000145:classification / Q000235:genetics / Q000302:isolation & purification; D001673:Biodegradation, Environmental; D042521:Burkholderiaceae / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism* / Q000648:ultrastructure; D004269:DNA, Bacterial / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics; D019015:Geologic Sediments / Q000382:microbiology*; D019216:Metals, Heavy / Q000032:analysis / Q000378:metabolism*; D008969:Molecular Sequence Data; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000378:metabolism*
D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D019216:Metals, Heavy; D012336:RNA, Ribosomal, 16S; D014874:Water Pollutants, Chemical