Preparation and Application of Acidic Media Black t-Barium Sulfate Adsorption Material

Abstract

The invention relates to a preparation method and application of an acidic mordant black T-barium sulfate adsorption material. The acidic mordant black T-barium sulfate adsorption material is darkbrown and compounded by a framework made from barium sulfate, barium chloride or barium nitrate and acidic mordant black T serving as a clathration material; the preparation method comprises the following steps of: mixing barium salt (such as barium chloride, barium nitrate and the like) and sulfuric acid or sulfate in aqueous solution for reaction; depositing and separating to prepare an acidic mordant black T-barium sulfate compound material; and adding 0.2 to 2 percent of the material serving as a heavy metal absorption agent into heavy metal waste water, so that the acidic mordant black T-barium sulfate compound material has a good heavy metal absorption function. By using the acidic mordant black T, an organic and inorganic hybrid material with the heavy metal absorption function can be prepared; and the organic and inorganic hybrid material has the advantages that: the price of the raw materials is low, the preparation method is simple, the absorption speed is high, the adsorption capacity is high, various types of heavy metal can be absorbed and the like. The acidic mordant black T-barium sulfate adsorption material can be widely applied to treatment of heavy metal pollution and dye waste water.

Description

technical field [0001] The invention relates to the preparation and application of an acid medium black T-barium sulfate adsorption material, and belongs to the technical field of preparation and use methods of materials for heavy metal wastewater treatment. Background technique [0002] Dyestuffs, pesticides, electroplating, battery manufacturing, non-ferrous metal mining and beneficiation, and smelting produce a large amount of wastewater discharged into the environment. Heavy metals have brought serious disasters to humans and the ecological environment. Heavy metals have two notable characteristics. One is that they are chemically stable and cannot be degraded by microorganisms; the other is that they are easily enriched through the biological chain, which poses a serious threat to organisms at the top of the food chain and human health. [0003] The "Minamata disease" caused by mercury pollution and the "bone pain disease" caused by cadmium pollution that occurred in Ja...

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Problems solved by technology

[0006] Although the adsorbent prepared by the above method has a certain adsorption effect on heavy metals, the cost of raw materials is high, the preparation conditions are relatively complicated, the types of heavy metals that can be adsorbed are small, the adsorption capacity is low, and the adsorption materials may dissolve under acidic conditions, etc. Disadvantages, which limit their application

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