Microbiological induced carbonate (CaCO3) precipitation using clay phyllites to replace chemical stabilizers (cement or lime)

Carbonate Precipitation Driven by Clay Leachates on Early Mars

Introduction: Secondary carbonate minerals produced by low temperature aqueous processes [1] in the martian meteorite ALH 84001 are evidence of an early active hydrosphere on Mars when they were formed ~3.9 Ga ago [2]. Further evidence for an early hydrosphere includes orbital and surface observations of diverse alteration mineral assemblages [e.g. 3-5] and fluvial geomorphology [6]. While carb...

Mixing Precipitation of CaCO3 in Natural Waters

The mixing precipitation of CaCO3 in natural waters was theoretically studied by the methods of chemical equilibrium calculation. Results show that mixing precipitation of CaCO3 can be produced by mixing between two unsaturated water samples with respect to CaCO3, two oversaturated water samples, an unsaturated water sample and an oversaturated water sample. Mixing precipitation can be classifi...

Chemical and Microbiological Quality of Traditional and Industrial Lime Juice Produced in Kashan, Iran

Background: Lime juice is a nutritious drink, which is generally consumed for its' refreshing properties, nutritive value, vitamin content, and health benefits. Therefore, the chemical and microbiological quality of the traditional and industrial lime juice produced in Kashan city was assessed. Methods: In this descriptive cross-sectional study, a total of 106 samples were collected and screene...

Chemical Induced Wettability Alteration of Carbonate Reservoir Rocks

Size-dependent calcium carbonate precipitation induced microbiologically in aerobic granules

Calcium and ash accumulation in aerobic granules treating organic wastewater was investigated systematically in this study. It was found that ash content of granular sludge reached 43% at stable state of reactor operation with calcium carbonate precipitation as the main cause. Since granular sludge in the reactor at the steady state was the mixture of granules with different sizes, granules in ...