Pharmaceutical compound for treating wastewater containing complex heavy metals and/or radioactive substances and application of pharmaceutical compound

Abstract

The invention discloses a pharmaceutical compound for treating wastewater containing complex heavy metals and / or radioactive substances and application of the pharmaceutical compound. The pharmaceutical compound comprises one of 8-hydroxyquinoline and derivatives of 8-hydroxyquinoline or a composition of any two of 8-hydroxyquinoline and the derivatives of 8-hydroxyquinoline, one of polyamine-dithiocarbamates or a composition of any two of the polyamine-dithiocarbamates, and one of dihydrocarbyl dithiophosphates or a composition of any two of the dihydrocarbyl dithiophosphates, wherein the mass fractions of the three components are respectively 1% to 90%, 1% to 90% and 1% to 98%. The pharmaceutical compound is dissolved in water and then the pharmaceutical compound solution is added into wastewater to be treated, and the amount of the pharmaceutical compound is 0.5 to 2 times larger than the theoretical amount of heavy metals and radioactive substances in the wastewater; and a metal complex is formed after sufficient stirring, and finally, the wastewater treatment can be completed by filtering separation. The pharmaceutical compound and the application of the pharmaceutical compound provided by the invention have the advantages of obvious effects, less investment, low cost, no site restriction, remote automatic control and the like.

Description

Technical field [0001] The invention relates to a treatment agent and a treatment method for wastewater, in particular to a treatment agent and a treatment method for wastewater containing heavy metals and / or radioactive substances. Background technique [0002] Heavy metals refer to metals with a specific gravity greater than 4 or 5, and there are about 45 types. The usual heavy metal pollution mainly refers to the environmental pollution of five types of heavy metals with significant biological toxicity such as lead, cadmium, chromium, mercury, and arsenic. Other heavy metals, such as zinc, copper, cobalt, nickel, tin, vanadium, etc. The treatment of heavy metal pollution is relatively difficult. When they accumulate to a certain limit in water bodies, they will cause serious harm to the aquatic ecosystem composed of water bodies, aquatic plants and aquatic animals, and may affect human health through the food chain. [0003] Hunan is the "hometown of non-ferrous metals." Non-fe...

AI Technical Summary

Problems solved by technology

For example, the ion exchange method uses a cation resin exchanger to pass the wastewater to be treated and remove the heavy metals in the water, but the disadvantage of this method is that the resin is expensive, the operating cost is high, and the regeneration of the resin is difficult, and the concentrated water is not easy to treat etc.; electrodialysis is to use ion exchange membrane and under the condition of electrification, water and metal ions are separated and removed, but the equipment system investment of this method is large, the treatment cost is too high, the membrane maintenance is difficult, and it is difficult to treat wastewater. popularization and application in China; reverse osmosis method is to use reverse osmosis membrane to separate heavy metal ions in water from water, but there are the same problems as electrodialysis; organic chelation method is to use a resin of chelating fiber to chelate and adsorb Heavy metal ions in water are removed, and then the resin material is regenerated by desorption, but this method also has problems such as high cost and difficult regeneration; the electrocoagulation method uses an electrolytic cell to cause redox precipitation or chemical precipitation of heavy metals in water. Through the flocculation process, the removal efficiency of heavy metals in water has an important relationship with wastewater quality, power parameters, electrodes and other factors; currently the most widely used heavy metal wastewater treatment methods are mostly the method of adding alkali to adjust, flocculation, precipitation and separation, and the treatment equipment is relatively simple. , the effect is easy to control, and the cost of treatment and equipment investment is relatively low, but the disadvantage is that the agent must be dosed in stages, and the precipitation efficiency of some heavy metals is low by only using hydroxide, and the treatment of low-concentration, multi-component heavy metal wastewater Incomplete, and has no obvious effect on the removal of anions

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