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| Smelting wastes slag to solidify sludge |
| Pan Pengcong1, Wang Xiaohan1, Ma Tianyu1, Liu Jinli1, Miao Junqian1, Ma Wenwen1, Wang Dan1,#br#
Wang Xiaohong1, Su Guangliang1, Sun Yu1, Ji Xuan1, Wang Ronggeng2 |
1. Hebei University of Science and Technology, Polytechnic College, Department of Applied Chemistry, Shijiazhuang
050000, China; 2. Hebei University of Science and Technology, College of Science, Shijiazhuang 050000, China |
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Abstract Smelting slag, desulfurization gypsum as main raw material, adopting the combination of physical and chemical methods to stimulate the activity of the raw material, strengthening of hydration process of the material and the curing process, sludge solidification cementing materials developed for high water cut, instead of common Portland cement experiment explores the steel slag and slag ratio, the ratio of dihydrate gypsum and anhydrite, the amount of clinker, coupled with silica fume and exciting agent c and d and excitation agent and the proportion of the seed of gelled material influence on strength, the results show that a large amount of modified desulfurized gypsum and cement clinker and a small amount of yuan Ming powder had a positive effect on the compressive strength of steel slag-slag zeolite gelatinization system. The optimal experimental scheme was as follows: dihydrous gypsum∶anhydrous gypsum 0∶10, steel ore ratio 1∶1, cement content 0, silica ash content 0, plus activator c 1%. The waste treatment is realized, the economic benefit is high and the cost is low.
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