Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-plasticity sludge curing agent and preparation method thereof
The invention discloses a high-plasticity sludge curing agent and a preparation method thereof, and belongs to the technical field of sludge treatment.The preparation method comprises the following steps that S1, Portland cement clinker and calcium aluminate are evenly mixed and then smashed and ground into powder, nitrogen is introduced for protection, and heating activation is conducted to obtain mineral powder; s2, adding water into the mineral powder, adjusting the pH value to 6-7, and fully stirring to obtain a mineral powder suspension; and S3, adding fly ash, a polycarboxylic acid superplasticizer, calcium bentonite and polypropylene fibers into the mineral powder turbid liquid, stirring, removing supernate, and drying, so as to obtain the water reducing agent. The cement, the fly ash, the superplasticizer, the calcium aluminate, the bentonite and the polypropylene fiber are combined according to the optimal proportion to prepare the composite sludge curing agent, the plasticity of sludge treated by the composite sludge curing agent is high, the stabilizing effect of pollutants in the sludge is good, and therefore the application range of the composite sludge curing agent is wider.
本发明公开了一种可塑性高的淤泥固化剂及其制备方法，属于淤泥处理技术领域，本发明包括如下步骤：S1：将硅酸盐水泥熟料和铝酸钙混匀后粉碎，磨细成粉，通氮气保护并加热活化，得到矿物粉；S2：将上述矿物粉加水并调节pH为6～7，充分搅拌后得到矿物粉悬浊液；S3：将粉煤灰、聚羧酸高效减水剂、钙基膨润土和聚丙烯纤维加入到上述矿物粉悬浊液内进行搅拌，去掉上清液后进行干燥处理，即得。本发明通过将水泥、粉煤灰、高效减水剂、铝酸钙、膨润土和聚丙烯纤维以最优配比组合制成复合淤泥固化剂，经其处理后的淤泥可塑性较高，淤泥中污染物质的稳定作用较好，从而其使用范围更广泛。
High-plasticity sludge curing agent and preparation method thereof
The invention discloses a high-plasticity sludge curing agent and a preparation method thereof, and belongs to the technical field of sludge treatment.The preparation method comprises the following steps that S1, Portland cement clinker and calcium aluminate are evenly mixed and then smashed and ground into powder, nitrogen is introduced for protection, and heating activation is conducted to obtain mineral powder; s2, adding water into the mineral powder, adjusting the pH value to 6-7, and fully stirring to obtain a mineral powder suspension; and S3, adding fly ash, a polycarboxylic acid superplasticizer, calcium bentonite and polypropylene fibers into the mineral powder turbid liquid, stirring, removing supernate, and drying, so as to obtain the water reducing agent. The cement, the fly ash, the superplasticizer, the calcium aluminate, the bentonite and the polypropylene fiber are combined according to the optimal proportion to prepare the composite sludge curing agent, the plasticity of sludge treated by the composite sludge curing agent is high, the stabilizing effect of pollutants in the sludge is good, and therefore the application range of the composite sludge curing agent is wider.
本发明公开了一种可塑性高的淤泥固化剂及其制备方法，属于淤泥处理技术领域，本发明包括如下步骤：S1：将硅酸盐水泥熟料和铝酸钙混匀后粉碎，磨细成粉，通氮气保护并加热活化，得到矿物粉；S2：将上述矿物粉加水并调节pH为6～7，充分搅拌后得到矿物粉悬浊液；S3：将粉煤灰、聚羧酸高效减水剂、钙基膨润土和聚丙烯纤维加入到上述矿物粉悬浊液内进行搅拌，去掉上清液后进行干燥处理，即得。本发明通过将水泥、粉煤灰、高效减水剂、铝酸钙、膨润土和聚丙烯纤维以最优配比组合制成复合淤泥固化剂，经其处理后的淤泥可塑性较高，淤泥中污染物质的稳定作用较好，从而其使用范围更广泛。
High-plasticity sludge curing agent and preparation method thereof
一种可塑性高的淤泥固化剂及其制备方法
LUO LINA (Autor:in) / ZHAI XIAOXIA (Autor:in) / WU KEXIONG (Autor:in) / JIANG JIA (Autor:in) / HE YILUO (Autor:in)
26.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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