PMID- 34942547
OWN - NLM
STAT- MEDLINE
DCOM- 20220112
LR  - 20220112
IS  - 1095-8630 (Electronic)
IS  - 0301-4797 (Linking)
VI  - 304
DP  - 2022 Feb 15
TI  - Cow urine as a source of nutrients for Microbial-Induced Calcite Precipitation in 
      sandy soil.
PG  - 114307
LID - S0301-4797(21)02369-0 [pii]
LID - 10.1016/j.jenvman.2021.114307 [doi]
AB  - Microbial Induced Calcite Precipitation (MICP) via biostimulation of urea 
      hydrolysis is a biogeochemical process in which soil indigenous ureolytic 
      microorganisms catalyse the decomposition of urea into ammonium and carbonate 
      ions which, in the presence of calcium, precipitate as calcium carbonate 
      minerals. The environmental conditions created by urine in soil resemble those 
      induced by MICP via urea hydrolysis. Thus, this study assesses the suitability of 
      a waste product, cow urine, as a source of nutrients for MICP. Urea stability in 
      fresh and sterilised urine were monitored for a month to cover the length of a 
      potential MICP intervention. An experimental soil column set up was used to 
      compare the soil response to the repeated application of fresh and sterilised cow 
      urine, within pH of 7 and 9, and the chemical-based solution. Urea hydrolysis and 
      the carbonate content in solution were monitored to assess the suitability of the 
      proposed alternative. In addition, the nitrification process was monitored. Key 
      findings indicated i) urea concentration and stability in fresh and sterilised 
      cow urine are suitable for MICP application; ii) the soil response to treatments 
      of cow urine within pH of 7 and 9 are similar to the chemical-based solution; and 
      iii) increasing solution pH results in a faster activation of ureolytic 
      microorganisms and higher carbonate content in solution. These results 
      demonstrate that cow urine is a suitable substitute of the chemical-based MICP 
      application.
CI  - Copyright (c) 2021 Elsevier Ltd. All rights reserved.
FAU - Comadran-Casas, Carla
AU  - Comadran-Casas C
AD  - School of Applied Sciences, Abertay University, Dundee, United Kingdom. 
      Electronic address: c.comadran-casas1700@abertay.ac.uk.
FAU - Schaschke, Carl J
AU  - Schaschke CJ
AD  - School of Computing, Engineering and Physical Sciences, University of the West of 
      Scotland, Paisley, United Kingdom.
FAU - Akunna, Joseph C
AU  - Akunna JC
AD  - School of Applied Sciences, Abertay University, Dundee, United Kingdom.
FAU - Jorat, M Ehsan
AU  - Jorat ME
AD  - School of Applied Sciences, Abertay University, Dundee, United Kingdom.
LA  - eng
PT  - Journal Article
DEP - 20211220
PL  - England
TA  - J Environ Manage
JT  - Journal of environmental management
JID - 0401664
RN  - 0 (Sand)
RN  - 0 (Soil)
RN  - H0G9379FGK (Calcium Carbonate)
SB  - IM
MH  - Animals
MH  - *Calcium Carbonate
MH  - Cattle
MH  - Chemical Precipitation
MH  - Nutrients
MH  - Sand
MH  - *Soil
OTO - NOTNLM
OT  - Biostimulation
OT  - Cow urine
OT  - MICP
OT  - Stability
OT  - Urea
OT  - Urea hydrolysis
EDAT- 2021/12/24 06:00
MHDA- 2022/01/13 06:00
CRDT- 2021/12/23 20:26
PHST- 2021/06/21 00:00 [received]
PHST- 2021/11/16 00:00 [revised]
PHST- 2021/12/12 00:00 [accepted]
PHST- 2021/12/24 06:00 [pubmed]
PHST- 2022/01/13 06:00 [medline]
PHST- 2021/12/23 20:26 [entrez]
AID - S0301-4797(21)02369-0 [pii]
AID - 10.1016/j.jenvman.2021.114307 [doi]
PST - ppublish
SO  - J Environ Manage. 2022 Feb 15;304:114307. doi: 10.1016/j.jenvman.2021.114307. 
      Epub 2021 Dec 20.