摘要
微生物成矿学的新进展——微生物诱导碳酸盐结晶,受到岩土工程和土木工程材料研究人员的高度重视。其中产脲酶微生物快速诱导大量碳酸盐结晶的过程更是近年研究的热点。与一般纯粹化学作用生成的碳酸钙不同,这种微生物诱导碳酸盐结晶的生成速度及材料强度可控,达到了土木工程应用中胶凝和封堵材料的基本标准,在一定条件下,可以替代水泥、石灰、环氧等传统材料。我国从事岩土工程和土木工程材料的研究人员也在最近十多年积极开展了该技术的研究工作,但多局限于技术应用层面上的研究,尚缺乏对微生物成矿学原理及其在土木工程材料环境中作用机理的深入工作。通过对国内外文献中岩土材料环境下几种典型的微生物成矿学原理的总结,以期促进该课题应用基础研究工作的进一步深入。
Microbial induced carbonate precipitation, an advance of biomineralization has become a focus of many geotechnical and material studies. The bio-mediated process differs from the pure chemical reaction processes for carbonate production as its reaction speed and induced carbonate properties can be controlled for the cementation and sealing purposes in civil engineering. Under certain circumstances such microbial induced carbonate can be an alternative solution to the cement, lime and epoxy materials. Chinese researchers have carried out a lot of work for the innovative technology, mainly dealing with its engineering applications. However, fundamental research on bio- chemo-physical mechanism underlying the technology is inadequate. The paper was based up on reviewing different fundamental mechanisms in geo-material porous media reported in publications both at home and abroad, as well as to promote the fundamental studies of the newly emerging subject.
出处
《工业建筑》
CSCD
北大核心
2015年第7期1-7,共7页
Industrial Construction
基金
国家自然科学基金项目(50608041
51078202
50908122)
关键词
微生物诱导碳酸盐结晶
产脲酶微生物
反硝化反应
铁盐还原
硫酸盐还原
黄色黏细菌
新陈代谢
microbial induced carbonate precipitation
ureolytic microorganisms
bio-denitrification
ferric reduction
sulfate reduction
Myxococcus xanthus
metabolison
