Attapulgite arsenic removing agent

Abstract

The invention discloses an attapulgite arsenic removing agent. The technical proposal of the arsenic removing agent comprises the following key point that the attapulgite arsenic removing agent consists of modified attapulgite clay, active attapulgite clay, calcium hydroxide, iron chloride and potassium permanganate. The method for manufacturing the attapulgite arsenic removing agent comprises the following steps that ingredients of the attapulgite arsenic removing agent are mixed and conveyed to a flour mill so as to be ground into powder; and the powder is packaged into the finished product of the attapulgite arsenic removing agent. When treating arsenic-containing water, the attapulgite arsenic removing agent can be directly spread into the water and stirred so as to carry out chemical reaction with arsenic, fluorine and heavy metals such as lead in the water; therefore, flocculation is generated quickly to wrap and settle the arsenic, the fluorine and the heavy metals such as the lead, thereby reaching the goal of removing the arsenic. The attapulgite arsenic removing agent is suitable for the treatment of drinking water and other sewage containing the arsenic.

Description

technical field [0001] The invention relates to an arsenic removal agent, in particular to an attapulgite arsenic removal agent. Background technique [0002] Arsenic is an element with metal-like properties. It is widely distributed in the atmosphere, water, soil, rocks and organisms. Arsenic has been known for its toxicity since its discovery. In recent years, with the development of mining, ceramics, leather With the rapid development of industries such as pesticides and pesticides, the pollution of arsenic in the groundwater environment is becoming more and more serious, and endemic arsenic poisoning has attracted worldwide attention. Xinjiang, Inner Mongolia, Guizhou, Shanxi and other regions have reported about endemic arsenic diseases, such as black foot disease, keratinization and pigmentation and other skin diseases. stipulated. [0003] Ferrous sulfate is a commonly used reagent in the arsenic removal process, but the flocculation speed is slow when ferrous sulfa...

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Problems solved by technology

[0005] The disadvantage of the above-mentioned patent is that polyaluminum chloride is a water purification flocculant in this technology, which cannot directly remove arsenic in water, and the attapulgite ore powder is activated, and after the treatment, it is mixed with activated carbon according to the proportion of powder to 80 mesh , its adsorption capacity has been greatly improved, but it cannot directly adsorb arsenic in water, and arsenic in water needs to go through some chemical reaction processes to generate new substances such as calcium arsenite, calcium arsenate or iron arsenate Precipitation is produced, so as to facilitate the adsorption of attapulgite ore powder and activated carbon, so as to achieve the purpose of improving the arsenic removal rate