A method for simultaneously removing arsenic and fluorine from groundwater

Abstract

The invention belongs to the technical field of removing arsenic and fluorine in underground water polluted by the coexistence of arsenic and fluorine, and in particular relates to an application method for adsorbing arsenic and fluorine with hydrated iron-aluminum hydroxide, especially the application in removing arsenic and fluorine from drinking water in rural areas. The invention provides a method for converting dissolved arsenic and fluorine into granular arsenic and fluorine by using hydrated iron-aluminum hydroxide and removing the granular arsenic and fluorine from water, and an integrated reactor for realizing the above-mentioned process. The method provided by the invention can be used to remove arsenic and fluorine in drinking water, underground water and industrial waste water. In addition, the method can also remove heavy metals such as mercury, lead, zinc, copper and cadmium in water.

Description

technical field

[0001] The invention relates to a treatment method for arsenic and fluorine in groundwater, in particular to a treatment method for simultaneously removing arsenic and fluorine. Background technique

[0002] The arsenic and fluorine pollution of drinking water and its water quality health risks have aroused widespread concern at home and abroad. Drinking high-arsenic water for a long time can cause a series of health problems such as melanosis, keratosis and cancer. Long-term drinking high-fluorine water can lead to dental plaque and fluorosis. my country is one of the typical countries suffering from arsenic and fluorine pollution at the same time. Due to environmental geochemical factors, groundwater in many areas shows obvious characteristics of coexistence of arsenic and fluorine pollution, and the potential synergistic toxic effect between the two may lead to an abnormal increase in the incidence of endemic diseases in some areas. my country's current ...