Treatment process device and method for resin-adsorbed regenerated high-concentration organic waste liquid

Abstract

The invention relates to a treatment process device and method for a resin-adsorbed regenerated high-concentration organic waste liquid, and belongs to the field of water treatment. The device includes a catalytic condensation reaction unit, a mud-water separation and concentration unit, an adsorption unit and a solid dewatering unit; the catalytic condensation reaction unit, the mud-water separation and concentration unit and the adsorption unit are connected through a pipeline in turn, and a by-path of the mud-water separation and concentration unit is provided with the solid dewatering unit. The method comprises the steps: adding a catalyst to the resin-adsorbed regenerated high-concentration organic waste liquid, stirring, carrying out mud-water separation of the generated mud-water mixture, and carrying out adsorption treatment of a filtered clear liquid; dewatering the mud-water concentrated liquid, conveying the sludge outwards, carrying out landfill treatment, and allowing thedewatered residual liquid to flow back to a front section of the mud-water separation and concentration unit. The method has the removal rate of organic matters in the high-concentration organic wasteliquid as high as 99% or more, and has the advantages of low investment and operation cost, simple operation management and the like; discharged water can achieve the standard to be discharged by simple treatment; and compared with the prior art, the method has great technical and economic advantages.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a processing device and method for resin adsorption and regeneration of high-concentration organic waste liquid. Background technique [0002] Biochemical tail water in coking, coal chemical, pharmaceutical, chemical, petrochemical and other industries usually contains polycyclic aromatic hydrocarbons, halogenated hydrocarbons, heterocyclic compounds, organic cyanides, organophosphorus pesticides, surfactants, organic dyes and other refractory organic pollutants thing. These organic substances are decomposed slowly or cannot be completely decomposed by microorganisms, and are easy to accumulate in organisms and become potential sources of water pollution. If such substances are discharged to the environment without treatment, they will seriously pollute the environment and threaten human health. The treatment of refractory organic matter is a hot and difficult point in the resear...

AI Technical Summary

Problems solved by technology

Due to the poor biochemical properties, the traditional anaerobic-aerobic biological treatment process is difficult to apply. At the same time, this kind of substance has good water solubility, and it is difficult to separate it by coagulation technology. However, due to the high COD value, ozone oxidation, FENTON Advanced oxidation processes such as reagent oxidation are not only extremely costly, but the oxidation intermediate product is usually a hydroxyl radical quencher, resulting in low oxidation efficiency and cannot meet the processing requirements

However, wet catalytic oxidation or supercritical water oxidation is effective, but the equipment investment is extremely high, and the operation and management requirements are extremely high, so it is difficult to be accepted by the market.

At present, there is a lack of good treatment process equipment and methods for high-concentration organic waste liquid from resin adsorption regeneration, so the main methods of disposal are still mixed incineration or landfill, which is not only costly, but also poses a great threat to equipment and the environment. Therefore, the application of macroporous resin adsorption process is severely limited.

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