Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for solidifying arsenic-containing sludge through cooperation of Portland cement and blast furnace slag
The invention relates to a method for solidifying arsenic-containing sludge through cooperation of Portland cement and blast furnace slag, and belongs to the technical field of heavy metal pollution treatment. The method comprises following steps: uniformly mixing Portland cement powder and blast furnace slag powder to obtain a mixture A; under a stirring condition, adding the mixture A into deionized water, and uniformly mixing to obtain a mixture B; uniformly stirring and mixing the mixture B and arsenic-containing sludge to obtain a mixture C; and aging the mixture C for 1-3 hours at the temperature of 40-50 DEG C, pouring the aged mixture C into a mold, molding to obtain a molded block, demolding the molded block, and naturally curing for 7-28 days. The blast furnace slag contains a large amount of basic oxides, the compressive strength of the arsenic-containing solidified block can be greatly enhanced, the stability of the arsenic-containing sludge is improved, and good market prospects are achieved.
本发明涉及一种硅酸盐水泥协同高炉矿渣固化含砷污泥的方法，属于重金属污染治理技术领域。本发明将硅酸盐水泥粉和高炉矿渣粉混合均匀得到混合物A；搅拌条件下，将混合物A加入到去离子水中混合均匀得到混合物B；将混合物B与含砷污泥搅拌混合均匀得到混合物C；将混合物C置于温度为40~50℃条件下老化1~3h，然后倒入模具中成型得到成型块，成型块脱模后自然养护7~28d。本发明中的高炉矿渣含有大量碱性氧化物，可大大增强含砷固化块的抗压强度，提高含砷污泥的稳定性，具有良好的市场前景。
Method for solidifying arsenic-containing sludge through cooperation of Portland cement and blast furnace slag
The invention relates to a method for solidifying arsenic-containing sludge through cooperation of Portland cement and blast furnace slag, and belongs to the technical field of heavy metal pollution treatment. The method comprises following steps: uniformly mixing Portland cement powder and blast furnace slag powder to obtain a mixture A; under a stirring condition, adding the mixture A into deionized water, and uniformly mixing to obtain a mixture B; uniformly stirring and mixing the mixture B and arsenic-containing sludge to obtain a mixture C; and aging the mixture C for 1-3 hours at the temperature of 40-50 DEG C, pouring the aged mixture C into a mold, molding to obtain a molded block, demolding the molded block, and naturally curing for 7-28 days. The blast furnace slag contains a large amount of basic oxides, the compressive strength of the arsenic-containing solidified block can be greatly enhanced, the stability of the arsenic-containing sludge is improved, and good market prospects are achieved.
本发明涉及一种硅酸盐水泥协同高炉矿渣固化含砷污泥的方法，属于重金属污染治理技术领域。本发明将硅酸盐水泥粉和高炉矿渣粉混合均匀得到混合物A；搅拌条件下，将混合物A加入到去离子水中混合均匀得到混合物B；将混合物B与含砷污泥搅拌混合均匀得到混合物C；将混合物C置于温度为40~50℃条件下老化1~3h，然后倒入模具中成型得到成型块，成型块脱模后自然养护7~28d。本发明中的高炉矿渣含有大量碱性氧化物，可大大增强含砷固化块的抗压强度，提高含砷污泥的稳定性，具有良好的市场前景。
Method for solidifying arsenic-containing sludge through cooperation of Portland cement and blast furnace slag
一种硅酸盐水泥协同高炉矿渣固化含砷污泥的方法
QI XIANJIN (Autor:in) / LI XUEZHU (Autor:in) / ZHU XING (Autor:in) / WANG HUA (Autor:in) / LU ZHIXU (Autor:in) / DUAN XIAOXU (Autor:in) / YANG NINA (Autor:in)
17.04.2020
Patent
Elektronische Ressource
Chinesisch
Portland cement and blast furnace slag
| Engineering Index Backfile | 1903
Tests of concrete containing Portland blast furnace slag cement
| Engineering Index Backfile | 1957
Durability of Portland blast-furnace slag cement concrete
| Online Contents | 1999