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http://dx.doi.org/10.4491/KSEE.2013.35.8.598

Characterization of CO2 Biomineralization Microorganisms and Its Mineralization Capability in Solidified Sludge Cover Soil in Landfill  

Ahn, Chang-Min (Department of Environmental Engineering, Inha University)
Bae, Young-Shin (SUDOKWON Landfill Site management corporation)
Ham, Jong-Heon (SUDOKWON Landfill Site management corporation)
Chun, Seung-Kyu (SUDOKWON Landfill Site management corporation)
Kim, Chang-Gyun (Department of Environmental Engineering, Inha University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.35, no.8, 2013 , pp. 598-606 More about this Journal
Abstract
This study was performed to determine whether biomineralization microbes were actively present underneath landfill cover soil producing biocalcification. From this, various types of microbes were observed. Among them, two species were dominantly found; Bacillus megaterium and Alkaliphilus metalliredigens that were known as biominerlization bacteria. With those microbes, $CO_2$ was more highly consumed than without bacteria. In response, the calcium carbonate mineral was produced at 30% (wt) greater than that of the control. At the same time, TG-DTA was successfully used for quantification of $CO_2$ consumed forming calcium carbonate minerals resulting from biocalcification. It was decided that the presence of solidified sewage sludge cake utilized as a cover soil in the landfill could efficiently contribute to possible media adaptably and naturally sequestering $CO_2$ producing from the landfill.
Keywords
Biocalcification; Bacteria; 16S rDNA; Solidified Sewage Sludge; CCS (Carbon Capture & Sequestration); TG-DTA;
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