Method for preparing montmorillonite forming adsorbent

Abstract

The invention discloses a method for preparing a montmorillonite forming adsorbent. The method comprises the following steps of: 1, taking powdery sodium-based montmorillonite; 2, adding a forming agent into the powdery sodium-based montmorillonite, stirring the mixture to form micelle, and putting the micelle into a forming machine and pressing the micelle into glue strips; 3, ageing; 4, drying;and 5, roasting, crushing and screening. The method for preparing the powdery sodium-based montmorillonite into the montmorillonite forming adsorbent does not change good adsorption performance of the montmorillonite, scientifically and effectively utilizes the effective ingredients and physicochemical properties of the montmorillonite, reduces the swelling property of the montmorillonite and reduces adverse effect of wastewater treatment subsequent processes.

Description

technical field

[0001] The invention belongs to the technical field of sewage and waste water treatment, and in particular relates to a preparation method of a montmorillonite shaped adsorbent. Background technique

[0002] Montmorillonite is rich in reserves in our country, and its unique mineral properties and physical and chemical properties have attracted the attention of many experts and scholars in recent years, and extensive research has been carried out in various fields. Its main direction is the modification of natural montmorillonite.

[0003] The use of montmorillonite to prepare shaped adsorbents is a new way for the deep processing of clay minerals and the popularization and application of efficient and cheap adsorbents. Due to the strong hydrophilicity of the silicon-oxygen structure on the surface of montmorillonite and the hydrolysis of interlayer cations, there is usually a thin water film on the surface, and the general organic pollutants are hydrophobic ...

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