Carbonization straw/kieselguhr molecular sieve manganese-removing filtering material doped with nanometer hydroxy manganese oxide

Abstract

The invention discloses a carbonization straw / kieselguhr molecular sieve manganese-removing filtering material doped with nanometer hydroxy manganese oxide. Straw and kieselguhr are taken as base stock of the filtering material, so that the production cost is lowered; the nanometer hydroxy manganese oxide loaded and modified with rare earth cerium oxide is mixed with the base stock, so that the nanometer molecular sieve structural filtering material with high specific surface area and high adsorption capacity is prepared; compared with the traditional manganese oxide, the nanometer hydroxy manganese oxide contained in the filtering material has the advantages of higher activity, quicker maturation process and higher catalyzed sorption rate; long-lasting active filtering membrane can be quickly formed; the filtering material is reusable, does not pollute water and especially is fit for the treatment of drinking water with slight manganese exceeding the standard.

Description

technical field [0001] The invention relates to the technical field of water treatment materials, in particular to a carbonized straw / diatomite molecular sieve manganese removal filter material mixed with nano manganese hydroxide oxide. Background technique [0002] At present, most cities in my country have or gradually use reservoirs and lakes as the main source of urban water supply. Therefore, reservoirs and lakes play an important role in water source cities. Reservoirs and lakes are closely related to human life and production. The source of water and production water, lake water also plays a significant role in regulating the natural environment. However, in summer, with the occurrence of reservoir stratification events and hypoxia at the bottom of the reservoir, manganese in the pore water migrates to the overlying lake water, redox The boundary layer moves up into the reservoir, causing a large amount of manganese in the sediment to be released to the overlying water ...

AI Technical Summary

Problems solved by technology

The article "Research on the Adsorption and Removal of Manganese Ions in Water by Nano Molecular Sieve and Diatomite" explores the use of nano molecular sieve and diatomite as filter materials to achieve a relatively ideal manganese removal effect, but its removal effect is greatly affected by the pH value of the system , will also change the pH value of the system, a large amount of use will cause the pH of drinking water to not meet the standard, and its adsorption capacity is effective, so it is not suitable for large-scale use