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A platform for research: civil engineering, architecture and urbanism
Microbial active multifunctional carrier and preparation method thereof
The invention belongs to the technical field of microbial concrete, and relates to a microbial active multifunctional carrier and a preparation method thereof, porous ceramsite is used as a bacterial carrier to protect bacteria from being damaged in a fiber concrete matrix, and a central layer adopts a mode of directly wrapping the carrier with yeast extract to ensure timely nutrition supply after the bacteria are activated, so that the microbial active multifunctional carrier has the advantages of simple preparation process and low cost. The activity of bacteria and the mineralization effect efficiency are improved, a substrate in the multifunctional component layer is necessary for microorganism mineralization, and the active multifunctional component can stimulate the self-healing ability of the fiber concrete to cracks while improving microorganisms to induce calcium carbonate precipitation to heal the cracks; by adding a mineralization substrate, favorable conditions are provided for mineralization reaction of bacteria, and active substances capable of reacting with the fiber concrete are added, so that the chemical and biological remediation process of the fiber concrete is promoted, the crack healing capacity of the fiber concrete is greatly improved, and the carrier is fully utilized.
本发明属于微生物混凝土技术领域，涉及一种微生物活性多功能载体及其制备方法，以多孔陶粒作为细菌载体，保护细菌在纤维混凝土基体中免受破坏，中心层采用酵母浸膏直接包裹载体的方式，保证了细菌在激活后及时的营养供给，提高了细菌的活性和矿化作用效率，多功能组分层中的底物是微生物矿化必需的，活性多功能组分能够在提高微生物诱导碳酸钙沉淀愈合裂缝的同时，激发纤维混凝土本身对裂缝的自愈合能力；其通过矿化底物的加入，为细菌发生矿化反应提供了有利条件，添加可与纤维混凝土发生反应的活性物质的，同时促进纤维混凝土的化学和生物修复进程，大大提高纤维混凝土的裂缝愈合能力，使载体得到了充分的利用。
Microbial active multifunctional carrier and preparation method thereof
The invention belongs to the technical field of microbial concrete, and relates to a microbial active multifunctional carrier and a preparation method thereof, porous ceramsite is used as a bacterial carrier to protect bacteria from being damaged in a fiber concrete matrix, and a central layer adopts a mode of directly wrapping the carrier with yeast extract to ensure timely nutrition supply after the bacteria are activated, so that the microbial active multifunctional carrier has the advantages of simple preparation process and low cost. The activity of bacteria and the mineralization effect efficiency are improved, a substrate in the multifunctional component layer is necessary for microorganism mineralization, and the active multifunctional component can stimulate the self-healing ability of the fiber concrete to cracks while improving microorganisms to induce calcium carbonate precipitation to heal the cracks; by adding a mineralization substrate, favorable conditions are provided for mineralization reaction of bacteria, and active substances capable of reacting with the fiber concrete are added, so that the chemical and biological remediation process of the fiber concrete is promoted, the crack healing capacity of the fiber concrete is greatly improved, and the carrier is fully utilized.
本发明属于微生物混凝土技术领域，涉及一种微生物活性多功能载体及其制备方法，以多孔陶粒作为细菌载体，保护细菌在纤维混凝土基体中免受破坏，中心层采用酵母浸膏直接包裹载体的方式，保证了细菌在激活后及时的营养供给，提高了细菌的活性和矿化作用效率，多功能组分层中的底物是微生物矿化必需的，活性多功能组分能够在提高微生物诱导碳酸钙沉淀愈合裂缝的同时，激发纤维混凝土本身对裂缝的自愈合能力；其通过矿化底物的加入，为细菌发生矿化反应提供了有利条件，添加可与纤维混凝土发生反应的活性物质的，同时促进纤维混凝土的化学和生物修复进程，大大提高纤维混凝土的裂缝愈合能力，使载体得到了充分的利用。
Microbial active multifunctional carrier and preparation method thereof
一种微生物活性多功能载体及其制备方法
BAO JIUWEN (author) / ZHENG RUI (author) / GUO DEYANG (author) / ZHANG PENG (author) / TIAN YUPENG (author) / XUE SHANBIN (author)
2022-03-11
Patent
Electronic Resource
Chinese
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