Multifunctional filter material for circulating water treatment and preparation method thereof

Abstract

The invention discloses a multifunctional filter material for circulating water treatment, which is prepared from 1 to 10 weight percent of nano tourmaline powder, 55 to 80 weight percent of coarse tourmaline powder, 1 to 15 weight percent of kieselguhr, 1 to 15 weight percent of sepiolite powder, 1 to 15 weight percent of scallop powder, 1 to 10 weight percent of sodium bicarbonate and 0.5 to 1 weight percent of silver-carried zeolite powder. A preparation method comprises the following steps of: stirring and mixing raw materials uniformly, injecting the uniformly mixed powder into a turntable machine, and rotating the powder for 15 to 30 minutes with controlled humidity of 15 to 50 percent and rotational speed of 20 to 200 revolutions per minute by using attapulgite of 0.1 to 1 millimeter as a core; and finally sintering the powder for 4 to 8 hours at the temperature of between 400 and 600 DEG C in a muffle furnace to form a ceramic filter material with the diameter of 1 to 10 millimeters. The filter material can effectively remove Ca2+ and Mg2+ from the water and achieve the effects of inhibiting scales, preventing corrosion and removing biological sludge.

Description

technical field [0001] The invention belongs to a novel multifunctional circulating cooling water treatment technology, and is particularly related to a multifunctional filter material for circulating water treatment and a preparation method thereof. Background technique [0002] The circulating cooling water system is generally an open circulation system (such as counter-flow and cross-flow cooling towers). The air in the cooling tower is in full contact with the water, and the oxygen content in the water is basically saturated. After the circulating water evaporates and loses, the water contains salt Concentration increases, resulting in serious fouling of certain systems, or the formation of corrosive water of certain types, causing serious corrosion of the system. In addition, suitable conditions such as sunlight and water temperature provide microorganisms with a good environment for survival and reproduction. Dust is constantly mixed into the water, which will produce ...

AI Technical Summary

Problems solved by technology

[0004] (1) Softened water method: This water treatment method is used when the hardness of the supplemented water is high, that is, after the supplemented water is softened (ion exchange), Ca in the water is removed 2+ 、mg 2+ , control the concentration of bicarbonate under a certain concentration multiple to prevent scaling, because the circulating cooling water system replenishes a large amount of water, the cost of this method is high, and this method has no anti-corrosion effect

[0005] (2) Electronic water treatment method: In recent years, electronic water processors have been widely used in engineering. The principle is to use the effect of electric field to change the physical structure of water molecules, and reduce the potential difference between water molecules and the contact interface. The electrostatic force between ions and charged particles of dissolved salts in water is weakened and cannot be aggregated with each other, but the actual application effect is not ideal, the scale inhibition ability is poor, and there is no anti-corrosion effect, so it is gradually replaced by the method of adding drugs

The anti-scaling and corrosion inhibition effect of the dosing method is good, and the bactericidal and algae-killing agents can be added at the same time. It is an ideal water treatment method for the cooling water system, but the operation cost is high, the water consumption is serious, the environment is polluted, and the maintenance Disadvantages such as high cost