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Shiva&Salek&
1"
3"
4"
5"
Silicate&minerals&e.g.&acidic&condi4ons&&
Limestone&e.g.&alkaline&condi4ons&
+ CO2
6"
e.g.&acidic&condi4ons&&
e.g.&alkaline&condi4ons&
Using&biotechnological&processes&
increasing&silicate&weathering&and&limestone&forma4on&rates&
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8"
CO2&storage&efficiencies&of&two?stage&biological&processes&
Two-stage anaerobic digestion system
9"
Limestone
Acidogenic Methanogenic
Mine
Silicate Mineral
Carbon containing Wastewater
Re-use in Construction/
Agriculture
Improved Biogas
Synthesis Natural Gas
Carbonate Mineral
Two-stage Anaerobic digestion
10"
Limestone Biocement
Acidogenic Methanogenic
Mine
Silicate Mineral
Re-use in Construction/
Agriculture
Improved Biogas
Synthesis Natural Gas
Carbonate Mineral
Two-stage Anaerobic digestion
11"
Acidogenic Methanogenic
Two-stage Anaerobic digestion
12"
13"
CH4
CO2
Component& SiO2& CaO& Fe2O3& P2O5& MgO& Al2O3& Na2O& Cl& MnO&Organic&reactant
TX?100&surfactant
(wt.%)"AD&Residue&
Chemical&grout
51.8 46.1 0.73 0.46 0.26 0.21 0.12 0.1 0.1 0.521 0
50270 0230 123 0 123 325 20230 0 022 426 0.1
Limestone Biocement
14"
Prac7cal"applica7on"of"CaCO3"in"biotechnological"processes"
15"
