Bio-sintering of Limestone to Produce Pollution Free Cement
Murugan, R.; Mukherjee, A.; Dubey, A.; Dhami, N.
Show abstract
Industrial cement is produced by consuming too much energy and emitting very high CO2. Nature too produces cement, but it is pollution-free. This research demonstrates an emulation of natural cement by bio-sintering limestone, a process of successive dissolution and reprecipitation of limestone with the help of bacteria in ambient environmental conditions. When the bacteria Acetobacter aceti were introduced into a mixture of ethanol and limestone powder, the pH came down rapidly, and dissolution of limestone into calcium acetate was observed. After the ethanol was fully consumed, the pH rose gradually, and biocement crystals were reprecipitated. All the reaction rates have been determined, and the products have been characterised. It is observed that the morphology of the biocement could be tailored by controlling the reprecipitation process. The dissolution and reprecipitation took place within the time scale of present construction methods. Thus, this process can potentially manufacture industrial cement from limestone sans the pollution.
Matching journals
The top 6 journals account for 50% of the predicted probability mass.
Similar papers in this journal
- Effect of perchlorate on biocementation capable bacteria and Martian bricks 98%
- Microbial induced calcite precipitation can consolidate martian and lunar regolith simulants 98%
- Iron can be microbially extracted from Lunar and Martian regolith simulants and 3D printed into tough structural materials 97%
Similar papers in this journal
- Cross-species Comparison of Ultramafic Rock Bio-accelerated Weathering Performance 96%
- Bio-Accelerated Weathering of Ultramafic Minerals with Gluconobacter oxydans 95%
- Toxicology assessment of manganese oxide nanomaterials with enhanced electrochemical properties using human in vitro models representing different exposure routes 94%
Similar papers in this journal
- Toxicity and Biodegradation of Two Different Hydrothermal Liquefaction Process Waters to Anaerobic Digestion and the Effect of Microaeration 95%
- First comparison of conventional activated sludge versus root-zone treatment for SARS-CoV-2 RNA removal from wastewaters: statistical and temporal significance 94%
- Scalable Fabrication of a Tough and Recyclable Spore-Bearing Biocomposite Thermoplastic Polyurethane 93%
Similar papers in this journal
- Microbial-induced calcium carbonate precipitation: An experimental toolbox for in situ and real-time investigation of micro-scale pH evolution 94%
- The VVBlue assay: a plate-readable, dye exclusion-based cell viability assay for the toxicological testing of chemicals 92%
- Oxidative stress induced by tBHP in human normal colon cells by label free Raman spectroscopy and imaging.The protective role of natural antioxidants in the form of β-carotene 91%
Similar papers in this journal
- Co-culturing Hyphomicrobium nitrativorans strain NL23 and Methylophaga nitratireducenticrescens strain JAM1 allows sustainable denitrifying activities under marine conditions 93%
- Impact of NaCl, nitrate and temperature on the microbial community of a methanol-fed, denitrifying marine biofilm 93%
- Quantitation of human enteric viruses as alternative indicators of fecal pollution to evaluate wastewater treatment processes 92%
"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.