Method for removing glucocorticoid in water

Abstract

The invention discloses a method for removing glucocorticoid in water. The method is characterized by comprising the following steps: adding a solution containing target glucocorticoid into a double-dielectric barrier discharge device; adjusting discharge voltage to 22.4 to 33.2kV and reaction time to 15 to 120min; oxidizing to remove various glucocorticoids in a water matrix. Compared with the prior art, the method disclosed by the invention has the advantages that an applicable target object range is wide, a reaction device is simple and feasible to operate, an applicable environment mediumrange is wide, reaction conditions are simple and moderate, the treatment time is short, the treatment effect is good, no secondary pollution is caused, an industrial application prospect is great andthe like.

Description

technical field [0001] The invention relates to a treatment method for an environmental medium containing glucocorticoid pollutants, in particular to a method for removing glucocorticoids in water by using advanced oxidation technology of dielectric barrier discharge plasma. Background technique [0002] Glucocorticoids are a class of steroid hormones secreted by the adrenal cortex, and can also be artificially synthesized by chemical methods. Natural and synthetic glucocorticoids have the function of regulating the biosynthesis and metabolism of sugar, fat and protein. Due to their important physiological functions, they can also be used for diseases that are beyond the reach of general antibiotics or anti-inflammatory drugs, such as SARS, sepsis, etc., thereby It is widely used in the treatment of allergies, skin diseases, asthma, colitis, arthritis and other related diseases, and is one of the most clinically used drugs. Glucocorticoids have relatively stable physical an...

AI Technical Summary

Problems solved by technology

Piram et al. analyzed the concentration of glucocorticoids in the influent and effluent of a sewage treatment plant in France and found that the concentrations of cortisone, hydrocortisone, budesonide and fluocinolone in the effluent (3 to 229 ng per liter) were all high The analysis reason may be that the combined glucocorticoids are cracked under the conditions of the sewage treatment process to form free glucocorticoids with strong activity, which leads to an increase in the concentration of effluent and further increases the impact of glucocorticoids on the influent water. environmental risk

[0004] In general, most studies have shown that the concentration of glucocorticoids in environmental water bodies and sewage treatment plant influent and effluent water is relatively high, some reaching hundreds or even thousands of nanograms per liter, while the existing traditional biological treatment process It is impossible to completely remove glucocorticoids, and it will even further increase the risk of glucocorticoids to the environment. Considering the toxicity and accumulation of glucocorticoids, before the effluent of sewage treatment plants is discharged into environmental water bodies or reused as reclaimed water, as well as surface water Before groundwater or groundwater is used as drinking water, glucocorticoid pollutants must be effectively removed to ensure ecological safety and human health

However, there is currently a lack of research on methods for effectively removing glucocorticoids. It is necessary to find an effective method to degrade glucocorticoids and control glucocorticoid pollution.

Images