Microbial method for construction of an aquaculture pond in sand

作者：Jian Chu, Volodymyr Ivanov, Viktor Stabnikov, B. LI · 发表于：Géotechnique · 年份：2013 · DOI：10.1680/geot.sip13.p.007 · 被引用次数：215 · 研究领域：Microbial Applications in Construction Materials、Calcium Carbonate Crystallization and Inhibition、Marine Sponges and Natural Products

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 10−4m/s to 10−7m/s when an average 2·1 kg of calcium (Ca) per m2of 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.