Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bentonite anti-seepage barrier material and preparation method thereof
The invention relates to the field of pollution barrier, and discloses a bentonite anti-seepage barrier material and a preparation method thereof, the bentonite anti-seepage barrier material comprises calcium bentonite, Mg (OH) 2, gamma-A1 2O3 and a surfactant SDBS; wherein the use amount of the Mg (OH) 2 is 5%-25% of that of the calcium bentonite, the use amount of the gamma-Al 2O3 is 2%-10% of that of the calcium bentonite, and the use amount of the SDBS is 1%-7% of that of the Mg (OH) 2. According to the invention, Mg (OH) 2 and gamma-Al 2O3 can be loaded on the surface of bentonite or pillared among bentonite layers through the gelling property of the bentonite under the action of a surfactant SDBS, so that the ion exchange capacity of the bentonite is increased, and the space accommodating capacity of the bentonite is improved, thereby improving the anti-seepage and interception performance of the modified bentonite material on metal ions.
本申请涉及污染地阻隔领域，公开了一种膨润土防渗阻隔材料及其制备方法，包括钙基膨润土、Mg(OH)2、γ‑A l 2O3和表面活性剂SDBS；其中，所述Mg(OH)2的用量为钙基膨润土的5％‑25％，所述γ‑A l 2O3的用量为钙基膨润土的2％‑10％，所述SDBS的用量为Mg(OH)2的1％‑7％。本发明通过利用Mg(OH)2和γ‑Al 2O3在表面活性剂SDBS作用下，以膨润土为载体，通过其胶凝性可负载于膨润土表面，或柱撑于膨润土层间，增加膨润土的离子交换容量，和提高膨润土的空间容纳能力，以此提高改性膨润土材料对金属离子的防渗阻截性能。
Bentonite anti-seepage barrier material and preparation method thereof
The invention relates to the field of pollution barrier, and discloses a bentonite anti-seepage barrier material and a preparation method thereof, the bentonite anti-seepage barrier material comprises calcium bentonite, Mg (OH) 2, gamma-A1 2O3 and a surfactant SDBS; wherein the use amount of the Mg (OH) 2 is 5%-25% of that of the calcium bentonite, the use amount of the gamma-Al 2O3 is 2%-10% of that of the calcium bentonite, and the use amount of the SDBS is 1%-7% of that of the Mg (OH) 2. According to the invention, Mg (OH) 2 and gamma-Al 2O3 can be loaded on the surface of bentonite or pillared among bentonite layers through the gelling property of the bentonite under the action of a surfactant SDBS, so that the ion exchange capacity of the bentonite is increased, and the space accommodating capacity of the bentonite is improved, thereby improving the anti-seepage and interception performance of the modified bentonite material on metal ions.
本申请涉及污染地阻隔领域，公开了一种膨润土防渗阻隔材料及其制备方法，包括钙基膨润土、Mg(OH)2、γ‑A l 2O3和表面活性剂SDBS；其中，所述Mg(OH)2的用量为钙基膨润土的5％‑25％，所述γ‑A l 2O3的用量为钙基膨润土的2％‑10％，所述SDBS的用量为Mg(OH)2的1％‑7％。本发明通过利用Mg(OH)2和γ‑Al 2O3在表面活性剂SDBS作用下，以膨润土为载体，通过其胶凝性可负载于膨润土表面，或柱撑于膨润土层间，增加膨润土的离子交换容量，和提高膨润土的空间容纳能力，以此提高改性膨润土材料对金属离子的防渗阻截性能。
Bentonite anti-seepage barrier material and preparation method thereof
一种膨润土防渗阻隔材料及其制备方法
26.01.2024
Patent
Elektronische Ressource
Chinesisch
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