Composite adsorption material for removing magnesium ions from natural water and preparation method for adsorption material

Abstract

The invention discloses a composite adsorption material for removing magnesium ions from natural water and a preparation method for the adsorption material. A bone and sawdust are used as raw materials. The method comprises the following steps of: cooking and grinding the animal bone, boiling by using NaOH, flushing, drying, sieving, and drying; uniformly mixing the dried, ground and sieved sawdust, bone black and water, forming in a banded extruder, pelletizing in a pelletizer, drying in the shade, and drying; and heating and activating the dried material, naturally cooling, flushing, and drying to obtain the adsorption material. The preparation method is novel and unique, and the prepared material has a good adsorption effect on the magnesium ions in the water.

Description

technical field

[0001] The invention relates to a composite adsorption material for removing magnesium ions in natural water bodies and a preparation method thereof, in particular to advanced treatment of water bodies containing magnesium ions, and belongs to the field of waste water treatment in environmental protection. Background technique

[0002] Some water contains magnesium ions and bicarbonate ions, etc. Magnesium ions combine with bicarbonate ions to form magnesium bicarbonate. Magnesium bicarbonate is unstable and finally converted into magnesium hydroxide, which is extremely stable and insoluble in water. It is a white precipitate. We call this water hard water. Drinking hard water will have a certain impact on human health and daily life. Cooking fish and vegetables with hard water will destroy or reduce the nutritional value of the food because it is not easy to cook; making tea with hard water will change the color and aroma of tea and reduce its drinkability. ...