Method for preparing wastewater heavy metal adsorbing material by using ionothermal system

Abstract

The invention relates to a method for preparing a wastewater heavy metal adsorbing material by using an ionothermal system. The method comprises the following steps: mixing 2-methylimidazole with bromoethane, and carrying out stirring, heating and an evaporating reaction to obtain bromide ionic liquid; uniformly mixing urea with choline chloride and uniformly heating for melting to obtain a deep-eutectic solvent; mixing and stirring the bromide ionic liquid, the deep-eutectic solvent, aluminum nitrate and sodium silicate, putting a mixture into a reaction still, and then putting into a baking oven; after the reaction ends, taking out a reactant for cooling, filtering, washing and drying to obtain a primary solid; adding the primary solid into a solution containing sodium hydroxide and then stirring the solution under the condition of water bath heating; filtering the stirred solution to obtain a final solid; cooling the final solid; drying the cooled final solid and then grinding the dried final solid to obtain a zeolite adsorbing material. The method disclosed by the invention has the advantages of being simple in preparation technology, environment friendly and low in energy consumption; reaction conditions are easy to meet; the zeolite adsorbing material has high purity and good adsorbing effect.

Description

Technical field [0001] The invention relates to the field of environmental protection, in particular to a method for preparing wastewater heavy metal adsorption materials under an ion heat system. Background technique [0002] With the continuous development of human society, while economic development brings benefits, it also produces a lot of pollution. The rapid increase in industrial "three wastes" and the increase in automobile exhaust emissions, the pollution of heavy metals in soil, water, and plants in the human living environment has become increasingly serious, which has become a prominent ecological problem in the coordinated development of economy, society and the environment. Heavy metals are generally not biodegradable, and once they enter water or soil, they are difficult to remove. They can enter the human body through the food chain and cause many diseases (such as cancer). [0003] Adsorption is an effective physical and chemical water treatment method, which is ...

AI Technical Summary

Problems solved by technology

[0006] However, the synthesis cost of existing zeolite molecular sieves is relatively high, and the synthesis yield of zeolite molecular sieves is also low. Therefore, it is necessary to explore new and green molecular sieve synthesis routes, devote ourselves to reducing the synthesis cost of molecular sieve materials, and find new breakthroughs in molecular sieve synthesis. Promote the application of molecular sieves in industrial fields