PMID- 35501449
OWN - NLM
STAT- MEDLINE
DCOM- 20220923
LR  - 20220923
IS  - 1614-7499 (Electronic)
IS  - 0944-1344 (Linking)
VI  - 29
IP  - 44
DP  - 2022 Sep
TI  - Application of waste eggshell as a source of calcium in bacterial bio-cementation 
      to enhance the engineering characteristics of sand.
PG  - 66450-66461
LID - 10.1007/s11356-022-20484-8 [doi]
AB  - A technique to produce bio-cementation in sandy soil using the microbially 
      induced calcium carbonate precipitation (MICP) process and calcium ions generated 
      from eggshell is presented in this research. This research also focused on the 
      application of S. pasteurii bacteria and L. fusiformis bacteria along with 
      eggshell and calcium chloride cementing chemicals on the strength properties of 
      sand. The experimental variables maintained in this research are bacteria type 
      (S. pasteurii and L. fusiformis), cementing chemical type (eggshell and calcium 
      chloride) and molarity of the cementing chemical (0.25, 0.50, 0.75 and 1.0). The 
      engineering behaviour of bacteria treated sand was estimated by executing the 
      unconfined compression test and permeability test in the laboratory. From the 
      experimental findings, it is identified that the unconfined compressive strength 
      of sand is enhanced and the value is in the range of 650 kPa. In addition to 
      that, the permeability of sand is minimized in the order of two from 6.3 x E(-3) 
      to 3.2 x E(-5) cm/s. The best improvement of Young's modulus and calcium 
      carbonate content estimated in this research are 28.9 MPa and 17.9% when the sand 
      is treated with S. pasteurii along 0.50 molarity of eggshell cementing chemical. 
      The experimental findings are validated with the help of microstructural studies 
      of scanning electron microscopy (SEM) and energy-dispersive X-ray analysis (EDX). 
      This research showed that bio-cementation technology in the form of S. pasteurii 
      and eggshell can be effectively adopted to enhance the engineering 
      characteristics of sand.
CI  - (c) 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, 
      part of Springer Nature.
FAU - Kulanthaivel, Ponnusamy
AU  - Kulanthaivel P
AUID- ORCID: 0000-0002-8141-0903
AD  - Department of Civil Engineering, Kongu Engineering College, Tamil Nadu, 
      Perundurai, Erode, 638060, India.
FAU - Soundara, Balu
AU  - Soundara B
AUID- ORCID: 0000-0003-4004-6719
AD  - Department of Civil Engineering, Saveetha School of Engineering, Saveetha 
      Institute of Medical and Technical Sciences, Tamil Nadu, Chennai, 602105, India.
FAU - Selvakumar, Subburaj
AU  - Selvakumar S
AUID- ORCID: 0000-0001-8483-4659
AD  - Department of Civil Engineering, Vel Tech Rangarajan Dr. Sagunthala R&D Institute 
      of Science and Technology, Tamil Nadu, Avadi, Chennai, 600062, India. 
      selvakumars@veltech.edu.in.
FAU - Das, Arunava
AU  - Das A
AUID- ORCID: 0000-0002-0165-866X
AD  - Faculty of Life Sciences, Mandsaur University, Madhya Pradesh, Mandsaur, 458001, 
      India.
LA  - eng
PT  - Journal Article
DEP - 20220503
PL  - Germany
TA  - Environ Sci Pollut Res Int
JT  - Environmental science and pollution research international
JID - 9441769
RN  - 0 (Sand)
RN  - 0 (Soil)
RN  - H0G9379FGK (Calcium Carbonate)
RN  - M4I0D6VV5M (Calcium Chloride)
RN  - SY7Q814VUP (Calcium)
SB  - IM
MH  - Animals
MH  - Bacteria
MH  - *Calcium
MH  - Calcium Carbonate/chemistry
MH  - Calcium Chloride
MH  - Cementation
MH  - Egg Shell
MH  - *Sand
MH  - Soil
OTO - NOTNLM
OT  - Bio-cementation
OT  - Eggshell
OT  - L. fusiformis
OT  - Microscopic analysis
OT  - Molarity
OT  - S. pasteurii
OT  - Waste eggshell
EDAT- 2022/05/03 06:00
MHDA- 2022/09/24 06:00
CRDT- 2022/05/02 23:21
PHST- 2021/12/16 00:00 [received]
PHST- 2022/04/23 00:00 [accepted]
PHST- 2022/05/03 06:00 [pubmed]
PHST- 2022/09/24 06:00 [medline]
PHST- 2022/05/02 23:21 [entrez]
AID - 10.1007/s11356-022-20484-8 [pii]
AID - 10.1007/s11356-022-20484-8 [doi]
PST - ppublish
SO  - Environ Sci Pollut Res Int. 2022 Sep;29(44):66450-66461. doi: 
      10.1007/s11356-022-20484-8. Epub 2022 May 3.