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Mineral microorganism cemented filling material capable of mineralizing and sealing CO2 and preparation method for mineral microorganism cemented filling material
The invention discloses a mineral microorganism cemented filling material capable of mineralizing and sealing CO2 and a preparation method for the mineral microorganism cemented filling material. Themineral microorganism cemented filling material comprises the raw materials composed of CO2, microorganisms, a calcium source and aggregate, wherein the microorganisms are carbonic anhydrase bacteriacapable of producing carbonic anhydrase and can convert the CO2 into CO3<2-> which is then combined with the calcium source to form a calcium carbonate gel; and the aggregate is cemented by the calcium carbonate gel to form a cemented filling material. According to the invention, the mineral microorganism cemented filling material capable of mineralizing and sealing the CO2 can simultaneously realize sealing of the CO2 and consolidation of a filling material; and compared with a traditional cement-based cemented filling material, the mineral microorganism cemented filling material capable of mineralizing and sealing the CO2 has the following advantages: the greenhouse effect is relieved; the carbon emission is reduced; the CO2 is sealed and stored; meanwhile, the performance of a filling body is guaranteed to meet the technical requirements of mine filling and mining. The filling material disclosed by the invention is a novel environmentally-friendly, low-energy-consumption and low-emission cemented filling material, and has wide application field and popularization value.
本发明公开了一种矿化封存CO2的矿用微生物胶结充填材料及其制备方法，其原料由CO2、微生物、钙源和骨料组成，所述微生物为产碳酸酐酶的碳酸酐酶菌，能够将CO2转化为CO32‑，再与钙源结合形成碳酸钙胶凝，碳酸钙凝胶将骨料胶结形成胶结充填材料。本发明的矿化封存CO2的矿用微生物胶结充填材料，可同时实现CO2的封存和充填材料的固结，相对传统水泥基胶结充填材料不仅缓解了温室效应，减少了碳排放，在封存CO2的同时保证了充填体的性能满足矿山充填开采的技术要求。本发明的充填材料是一种环境友好型、低能耗、低排放的新型胶结充填材料，具有广泛的适用领域和推广价值。
Mineral microorganism cemented filling material capable of mineralizing and sealing CO2 and preparation method for mineral microorganism cemented filling material
The invention discloses a mineral microorganism cemented filling material capable of mineralizing and sealing CO2 and a preparation method for the mineral microorganism cemented filling material. Themineral microorganism cemented filling material comprises the raw materials composed of CO2, microorganisms, a calcium source and aggregate, wherein the microorganisms are carbonic anhydrase bacteriacapable of producing carbonic anhydrase and can convert the CO2 into CO3<2-> which is then combined with the calcium source to form a calcium carbonate gel; and the aggregate is cemented by the calcium carbonate gel to form a cemented filling material. According to the invention, the mineral microorganism cemented filling material capable of mineralizing and sealing the CO2 can simultaneously realize sealing of the CO2 and consolidation of a filling material; and compared with a traditional cement-based cemented filling material, the mineral microorganism cemented filling material capable of mineralizing and sealing the CO2 has the following advantages: the greenhouse effect is relieved; the carbon emission is reduced; the CO2 is sealed and stored; meanwhile, the performance of a filling body is guaranteed to meet the technical requirements of mine filling and mining. The filling material disclosed by the invention is a novel environmentally-friendly, low-energy-consumption and low-emission cemented filling material, and has wide application field and popularization value.
本发明公开了一种矿化封存CO2的矿用微生物胶结充填材料及其制备方法，其原料由CO2、微生物、钙源和骨料组成，所述微生物为产碳酸酐酶的碳酸酐酶菌，能够将CO2转化为CO32‑，再与钙源结合形成碳酸钙胶凝，碳酸钙凝胶将骨料胶结形成胶结充填材料。本发明的矿化封存CO2的矿用微生物胶结充填材料，可同时实现CO2的封存和充填材料的固结，相对传统水泥基胶结充填材料不仅缓解了温室效应，减少了碳排放，在封存CO2的同时保证了充填体的性能满足矿山充填开采的技术要求。本发明的充填材料是一种环境友好型、低能耗、低排放的新型胶结充填材料，具有广泛的适用领域和推广价值。
Mineral microorganism cemented filling material capable of mineralizing and sealing CO2 and preparation method for mineral microorganism cemented filling material
一种矿化封存CO2的矿用微生物胶结充填材料及其制备方法
DENG XUEJIE (author) / LI YU (author) / LIU HAO (author) / FENG JIANYE (author) / ZHAO YILE (author) / YUAN ZONGXUAN (author)
2020-11-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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