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Environmental Engineering Research 2000;5(4): 223-228.
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| A STUDY ON ENHANCEMENT OF THE SOIL MATRIX STRENGTH USING SLIME-FORMING
BACTERIA
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| Joonkyu Park1†, Joonkyu Hong2, and Yong-Su Choi2 |
1LG Institute of Environment, Safety & Health, Seoul 120-749, Korea
2Korea Institute of Science and Technology, Seoul 136-791, Korea |
Corresponding Author:
Joonkyu Park ,
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Received: August 16, 2000; Accepted: November 15, 2000. |
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| ABSTRACT |
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Experiments showed that the strength of soil can be enhanced by either applying slime-forming bacteria directly to the soil matrix to produce a biopolymer inside it, or by applying biopolymer from slime-forming bacteria or commercial products such as poly-3-hydroxybutyrate (PHB), xanthan gum, and sodium alginates to the soil matrix. The cross-linked support networks result from the interaction of biopolymer with the soil matrix.
Zonal bioremediation or environmental encapsulation is potential applications of this research. Reduction of soil erosion and enhancement of the soil strength in the foundations of hydraulic systems may also be good prospects for geotechnical and agricultural exploration.
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| Keywords:
biopolymer | slime | soil matrix | torvane test | unconfined compression test |
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