Improvement in soil grouting by biocementation through injection method
| Autor: | Mahdi Maleki Kakelar, Sirous Ebrahimi, Mohammadjavad Hosseini |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Urease enzyme
biology Petroleum engineering Injection Procedure Renewable Energy Sustainability and the Environment Chemistry General Chemical Engineering 0211 other engineering and technologies 02 engineering and technology 010501 environmental sciences biology.organism_classification 01 natural sciences Sporosarcina pasteurii Cost savings Compressive strength Cost analysis Batch processing Geotechnical engineering Waste Management and Disposal 021101 geological & geomatics engineering 0105 earth and related environmental sciences |
| Zdroj: | Asia-Pacific Journal of Chemical Engineering. 11:930-938 |
| ISSN: | 1932-2135 |
| DOI: | 10.1002/apj.2027 |
| Popis: | In order to reduce the cost of microbial-induced carbonate precipitation, an in situ soil improvement technique, two cost-effective methods have been developed. At first, possible replacement of costly yeast extract medium with sodium acetate for Sporosarcina pasteurii growth was evaluated. Thereafter, a sequencing batch mode of injection has been introduced. The unconfined compressive strength of 525 kPa with uniform CaCO3 distribution was obtained even for poorly graded coarse sand using the proposed injection method. According to economic considerations, by using this injection method, a substantial cost saving (53.4%) has been achieved, inducing the feasibility of biocementation technology for practical applications. Copyright © 2016 Curtin University of Technology and John Wiley & Sons, Ltd. |
| Databáze: | OpenAIRE |
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