Brucite composite heavy metal adsorption granules and preparation method thereof

Abstract

The invention discloses brucite composite heavy metal adsorption granules. The brucite composite heavy metal adsorption granules are characterized by being prepared from raw materials in parts by weight as follows: 10-15 parts of brucite powder, 5-10 parts of plant ash, 2-4 parts of stearic acid, 1-2 parts of carboxymethyl cellulose, 5-10 parts of light calcium carbonate, 0.1-0.2 parts of sodium dodecyl benzene sulfonate, 0.1-0.2 parts of sodium benzoate, 1-2 parts of tartaric acid, 0.5-1 part of boric acid and 5-10 parts of bonding auxiliary materials. The adsorption granules have high adsorption capacity, not only can effectively absorb and remove heavy metal ions in water, but also has certain adsorption and removal effects on nitrogen and phosphorus organic matters in water and has high water purification capacity, the production process is clean and safe, and no secondary pollution is caused during wastewater treatment.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a brucite composite heavy metal adsorption granule and a preparation method thereof. Background technique [0002] Due to the rapid development of industry, heavy metal pollution is becoming more and more serious. Among them, industries such as electronics, electroplating, tanning, and mineral processing produce a large amount of industrial wastewater containing heavy metal ions every year. The subsequent treatment of heavy metal wastewater has always been the focus of attention and research. . Heavy metals cannot be biodegraded in the environment, tend to be enriched in living organisms, can accumulate in the human body through the biological chain, destroy normal physiological metabolic activities, and even cause "three causes" (carcinogenic, teratogenic, and mutagenic) Substances are extremely harmful, so economical and effective methods are needed to remove various heavy metal...

AI Technical Summary

Problems solved by technology

[0003] Traditional heavy metal-polluted wastewater treatment methods include chemical precipitation, ion exchange, membrane separation, solvent extraction, and redox methods. They have their own advantages, but they all have limitations, mainly reflected in high cost and high energy consumption. , Difficult operation, easy to produce secondary pollution, etc., especially when dealing with low-content heavy metal polluted wastewater, the operating costs and raw material costs are relatively high