PMID- 31022616
OWN - NLM
STAT- MEDLINE
DCOM- 20190722
LR  - 20190722
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 228
DP  - 2019 Aug
TI  - Solidification of sand by Pb(II)-tolerant bacteria for capping mine waste to 
      control metallic dust: Case of the abandoned Kabwe Mine, Zambia.
PG  - 17-25
LID - S0045-6535(19)30760-X [pii]
LID - 10.1016/j.chemosphere.2019.04.107 [doi]
AB  - Environmental impacts resulting from historic lead and zinc mining in Kabwe, 
      Zambia affect human health due to the dust generated from the mine waste that 
      contains lead, a known hazardous pollutant. We employed microbially induced 
      calcium carbonate precipitation (MICP), an alternative capping method, to prevent 
      dust generation and reduce the mobility of contaminants. Pb-resistant 
      Oceanobacillus profundus KBZ 1-3 and O. profundus KBZ 2-5 isolated from Kabwe 
      were used to biocement the sand that would act as a cover to prevent dust and 
      water infiltration. Sand biocemented by KBZ 1-3 and KBZ 2-5 had maximum 
      unconfined compressive strength values of 3.2 MPa and 5.5 MPa, respectively. 
      Additionally, biocemented sand exhibited reduced water permeability values of 
      9.6 x 10-8 m/s and 8.9 x 10-8 m/s for O. profundus KBZ 1-3 and KBZ 2-5, 
      respectively, which could potentially limit the entrance of water and oxygen into 
      the dump, hence reducing the leaching of heavy metals. We propose that these 
      isolates represent an option for bioremediating contaminated waste by preventing 
      both metallic dust from becoming airborne and rainwater from infiltrating into 
      the waste. O. profundus KBZ 1-3 and O. profundus KBZ 2-5 isolated form Kabwe 
      represent a novel species that has, for the first time, been applied in a 
      bioremediation study.
CI  - Copyright (c) 2019 Elsevier Ltd. All rights reserved.
FAU - Mwandira, Wilson
AU  - Mwandira W
AD  - Graduate School of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, 
      Sapporo, 060-8628, Japan.
FAU - Nakashima, Kazunori
AU  - Nakashima K
AD  - Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo, 
      060-8628, Japan. Electronic address: nakashima@geo-er.eng.hokudai.ac.jp.
FAU - Kawasaki, Satoru
AU  - Kawasaki S
AD  - Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo, 
      060-8628, Japan.
FAU - Ito, Mayumi
AU  - Ito M
AD  - Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo, 
      060-8628, Japan.
FAU - Sato, Tsutomu
AU  - Sato T
AD  - Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo, 
      060-8628, Japan.
FAU - Igarashi, Toshifumi
AU  - Igarashi T
AD  - Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo, 
      060-8628, Japan.
FAU - Chirwa, Meki
AU  - Chirwa M
AD  - IWRM Centre/Geology Department, School of Mines, University of Zambia, P.O. Box 
      32379, Zambia.
FAU - Banda, Kawawa
AU  - Banda K
AD  - IWRM Centre/Geology Department, School of Mines, University of Zambia, P.O. Box 
      32379, Zambia.
FAU - Nyambe, Imasiku
AU  - Nyambe I
AD  - IWRM Centre/Geology Department, School of Mines, University of Zambia, P.O. Box 
      32379, Zambia.
FAU - Nakayama, Shouta
AU  - Nakayama S
AD  - Faculty of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-Ku, 
      Sapporo, 060-0818, Japan.
FAU - Nakata, Hokuto
AU  - Nakata H
AD  - Faculty of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-Ku, 
      Sapporo, 060-0818, Japan.
FAU - Ishizuka, Mayumi
AU  - Ishizuka M
AD  - Faculty of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-Ku, 
      Sapporo, 060-0818, Japan.
LA  - eng
PT  - Journal Article
DEP - 20190416
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Dust)
RN  - 2P299V784P (Lead)
RN  - 7631-86-9 (Silicon Dioxide)
RN  - H0G9379FGK (Calcium Carbonate)
SB  - IM
MH  - Bacteria/*metabolism
MH  - *Biodegradation, Environmental
MH  - Calcium Carbonate
MH  - *Cementation
MH  - Chemical Precipitation
MH  - Dust/*prevention & control
MH  - Lead
MH  - Mining
MH  - Silicon Dioxide/*chemistry
MH  - Zambia
OTO - NOTNLM
OT  - Biocementation
OT  - Capping
OT  - Indigenous ureolytic bacteria
OT  - Kabwe
OT  - Mine waste
EDAT- 2019/04/26 06:00
MHDA- 2019/07/23 06:00
CRDT- 2019/04/26 06:00
PHST- 2019/01/25 00:00 [received]
PHST- 2019/04/08 00:00 [revised]
PHST- 2019/04/14 00:00 [accepted]
PHST- 2019/04/26 06:00 [pubmed]
PHST- 2019/07/23 06:00 [medline]
PHST- 2019/04/26 06:00 [entrez]
AID - S0045-6535(19)30760-X [pii]
AID - 10.1016/j.chemosphere.2019.04.107 [doi]
PST - ppublish
SO  - Chemosphere. 2019 Aug;228:17-25. doi: 10.1016/j.chemosphere.2019.04.107. Epub 
      2019 Apr 16.