Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cemented filling agent and cemented filling method
The invention discloses a cemented filling agent and a cemented filling method, and relates to the technical field of biomineralization. The cemented filling agent comprises phytic acid enzymatic hydrolysate, ammonia water and a MgCl2 solution, the phytic acid enzymatic hydrolysate is obtained by carrying out catalytic hydrolysis on phytic acid by utilizing phytase. The phytase is utilized to catalyze hydrolysis of an organic phosphorus substrate, inorganic phosphate ions are quickly released, and the inorganic phosphate ions, ammonium ions and magnesium chloride generate magnesium ammonium phosphate precipitates under the alkaline condition. In the process, the generation of magnesium ammonium phosphate needs a weakly alkaline environment, so that a proper amount of ammonia water is adopted to maintain the weakly alkaline environment, and ammonium ions can be provided to generate magnesium ammonium phosphate. Compared with a traditional cement-based cemented filling material, the cemented filling material formed by the method avoids high-energy-consumption, high-emission and high-alkalinity environments, and meets the low-carbon and environment-friendly requirements; meanwhile, compared with MICP and EICP technologies, the problems of poor biological safety, poor cemented filling material stability and the like are solved, and the requirements of mine filling are met.
本发明公开了一种胶结充填剂和胶结充填方法，涉及生物矿化技术领域。该胶结充填剂包括植酸酶解液、氨水和MgCl2溶液；该植酸酶解液是利用植酸酶对植酸进行催化水解后得到。本发明利用植酸酶催化有机磷底物水解，快速释放无机磷酸根离子，在碱性条件下与铵根离子和氯化镁生成磷酸铵镁沉淀。在此过程中，磷酸铵镁的生成需要弱碱性环境，因此，采用适量氨水以维持弱碱性环境，同时也可提供铵根离子以生成磷酸铵镁。与传统水泥基胶结充填材料相比，利用该方法形成的胶结充填材料，避免了高耗能、高排放和高碱性环境，符合低碳、环保要求；同时与MICP和EICP技术相比，避免了生物安全性以及胶结充填材料稳定性差等问题，符合矿山充填要求。
Cemented filling agent and cemented filling method
The invention discloses a cemented filling agent and a cemented filling method, and relates to the technical field of biomineralization. The cemented filling agent comprises phytic acid enzymatic hydrolysate, ammonia water and a MgCl2 solution, the phytic acid enzymatic hydrolysate is obtained by carrying out catalytic hydrolysis on phytic acid by utilizing phytase. The phytase is utilized to catalyze hydrolysis of an organic phosphorus substrate, inorganic phosphate ions are quickly released, and the inorganic phosphate ions, ammonium ions and magnesium chloride generate magnesium ammonium phosphate precipitates under the alkaline condition. In the process, the generation of magnesium ammonium phosphate needs a weakly alkaline environment, so that a proper amount of ammonia water is adopted to maintain the weakly alkaline environment, and ammonium ions can be provided to generate magnesium ammonium phosphate. Compared with a traditional cement-based cemented filling material, the cemented filling material formed by the method avoids high-energy-consumption, high-emission and high-alkalinity environments, and meets the low-carbon and environment-friendly requirements; meanwhile, compared with MICP and EICP technologies, the problems of poor biological safety, poor cemented filling material stability and the like are solved, and the requirements of mine filling are met.
本发明公开了一种胶结充填剂和胶结充填方法，涉及生物矿化技术领域。该胶结充填剂包括植酸酶解液、氨水和MgCl2溶液；该植酸酶解液是利用植酸酶对植酸进行催化水解后得到。本发明利用植酸酶催化有机磷底物水解，快速释放无机磷酸根离子，在碱性条件下与铵根离子和氯化镁生成磷酸铵镁沉淀。在此过程中，磷酸铵镁的生成需要弱碱性环境，因此，采用适量氨水以维持弱碱性环境，同时也可提供铵根离子以生成磷酸铵镁。与传统水泥基胶结充填材料相比，利用该方法形成的胶结充填材料，避免了高耗能、高排放和高碱性环境，符合低碳、环保要求；同时与MICP和EICP技术相比，避免了生物安全性以及胶结充填材料稳定性差等问题，符合矿山充填要求。
Cemented filling agent and cemented filling method
一种胶结充填剂和胶结充填方法
25.10.2024
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2022
Mine solid waste cemented filling material mixing device and solid waste cemented filling material
| Europäisches Patentamt | 2023