Microbial method for construction of an aquaculture pond in sand
Date of Issue2013-08
School of Civil and Environmental Engineering
A method to construct an aquaculture pond in sand using microbial biocementation is presented in this paper. The microbially induced calcium carbonate precipitation process was used to form a low-permeability layer in sand for the construction of a water pond model in the laboratory. The test results indicated that the permeability of sand was reduced from the order of 10−4 m/s to 10−7 m/s when an average 2·1 kg of calcium (Ca) per m2 of sand surface was precipitated. The bending strengths of the walls and the base of the model pond were in the range of 90–256 kPa. The unconfined compressive strengths for the samples taken from the walls and the base of the pond were in the range of 215–932 kPa.
ground improvement; grouting; permeability; seepage
© 2013 Thomas Telford (owned by Institution of Civil Engineers). This paper was published in Géotechnique and is made available as an electronic reprint (preprint) with permission of Thomas Telford (owned by Institution of Civil Engineers). The published version is available at: [http://dx.doi.org/10.1680/geot.SIP13.P.007]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.