A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Lithium magnesium silicate bentonite composite nano material and preparation method thereof
The invention belongs to the technical field of pollution site barrier risk management and control, and particularly relates to a magnesium lithium silicate and bentonite composite nanomaterial, which is prepared from the following raw materials in percentage by weight: 0.1 to 2 percent of magnesium lithium silicate and 98 to 99.9 percent of bentonite composite nanomaterial. The magnesium lithium silicate bentonite composite nano material can still keep the permeability coefficient lower than 1 * 10 <-9 > m/s under the action of a high-concentration heavy metal polluted solution, heavy metal erosion is resisted, and the chemical compatibility of the magnesium lithium silicate bentonite composite nano material is effectively improved; as the raw material of the geosynthetic clay liner, the anti-seepage performance, the adsorption performance and the migration retardation performance of the geosynthetic clay liner under the action of heavy metal pollutant polluted underground water are greatly improved; the reinforced vertical barrier wall material is simple in manufacturing process, low in construction cost and easy for engineering popularization.
本发明属于污染场地阻隔风险管控技术领域，尤其是一种硅酸锂镁膨润土复合纳米材料，现提出如下方案，其包括以下重量的原料，其中硅酸锂镁0.1‑2%、膨润土复合纳米98‑99.9%。本发明的硅酸锂镁膨润土复合纳米材料在高浓度重金属污染溶液的作用下仍能保持渗透系数低于1×10‑9 m/s,抵抗重金属侵蚀，有效提高其化学相容性；用作膨润土防水毯的原料，极大地提高重金属污染物污染地下水作用下膨润土防水毯的防渗性能、吸附性能和阻滞运移性能；该增强型竖向阻隔墙材料的制作工艺简单，建造成本低，易于工程推广。
Lithium magnesium silicate bentonite composite nano material and preparation method thereof
The invention belongs to the technical field of pollution site barrier risk management and control, and particularly relates to a magnesium lithium silicate and bentonite composite nanomaterial, which is prepared from the following raw materials in percentage by weight: 0.1 to 2 percent of magnesium lithium silicate and 98 to 99.9 percent of bentonite composite nanomaterial. The magnesium lithium silicate bentonite composite nano material can still keep the permeability coefficient lower than 1 * 10 <-9 > m/s under the action of a high-concentration heavy metal polluted solution, heavy metal erosion is resisted, and the chemical compatibility of the magnesium lithium silicate bentonite composite nano material is effectively improved; as the raw material of the geosynthetic clay liner, the anti-seepage performance, the adsorption performance and the migration retardation performance of the geosynthetic clay liner under the action of heavy metal pollutant polluted underground water are greatly improved; the reinforced vertical barrier wall material is simple in manufacturing process, low in construction cost and easy for engineering popularization.
本发明属于污染场地阻隔风险管控技术领域，尤其是一种硅酸锂镁膨润土复合纳米材料，现提出如下方案，其包括以下重量的原料，其中硅酸锂镁0.1‑2%、膨润土复合纳米98‑99.9%。本发明的硅酸锂镁膨润土复合纳米材料在高浓度重金属污染溶液的作用下仍能保持渗透系数低于1×10‑9 m/s,抵抗重金属侵蚀，有效提高其化学相容性；用作膨润土防水毯的原料，极大地提高重金属污染物污染地下水作用下膨润土防水毯的防渗性能、吸附性能和阻滞运移性能；该增强型竖向阻隔墙材料的制作工艺简单，建造成本低，易于工程推广。
Lithium magnesium silicate bentonite composite nano material and preparation method thereof
一种硅酸锂镁膨润土复合纳米材料及其制备方法
BI YUZHANG (author) / FU XIANLEI (author) / JIANG ZHEYUAN (author) / SUN XINPO (author) / WANG ANHUI (author) / WU HAOLIANG (author) / WANG XINYI (author)
2022-05-06
Patent
Electronic Resource
Chinese
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