Purifying and sterilizing method for drinking water

Abstract

The invention discloses a purifying and sterilizing method for drinking water. Water enters into a pipe from water inlets at both sides of the pipe and is discharged from a water outlet after passing through a sterilization layer, a water purification layer and a heavy metal ion removal layer from top to bottom, wherein the sterilization layer consists of polyiodide resin, the water purification layer consists of granular activated carbon and activated carbon fiber, and the heavy metal ion removal layer consists of heavy metal nanoparticles and cation exchange resin; air in an air vessel is compressed by an air compression mechanism driven by an impeller in the water outlet driven by the water inflow; the water outlet is closed within specified time after the water inflow is stopped. At a specified time interval, the compressed air is released into the closed water outlet by opening a valve on the air vessel to force the residual water at the outlet to flow into a reflux line, and then the residual water flows into the body of the pipe through the reflux line and is subjected to sterilization and filtering through various layers until the inflow begins again. The method has the advantages of simpleness in implementation, good sterilization effect and no secondary pollution produced.

Description

technical field [0001] The invention relates to the technical field of drinking water purification, in particular to a method for purifying and sterilizing drinking water. Background technique [0002] Most of the raw water for people's drinking water is collected from nature, and then the drinking water that meets the standards is obtained through purification and sterilization processes. [0003] A major hidden danger in the drinking water purification and sterilization process in the past is that if the water purification device is not used for a period of time, or just for one night, because the bacteria breed and reproduce every few tens of minutes, the water purification device A large number of bacteria will grow geometrically at the outlet or even inside, making the total number of bacterial colonies in the effluent fail to meet the requirements of the national standard. [0004] Advanced water purification technologies such as ultraviolet sterilization and ultrafil...

AI Technical Summary

Problems solved by technology

[0003] A major hidden danger in the drinking water purification and sterilization process in the past is that if the water purification device is not used for a period of time, or just for one night, because the bacteria breed and reproduce every few tens of minutes, the water purification device A large number of bacteria will grow geometrically at the outlet or even inside, making the total number of bacterial colonies in the effluent fail to meet the requirements of the national standard

[0004] Advanced water purification technologies such as ultraviolet sterilization and ultrafiltration sterilization are disclosed in the prior art. Although these sterilization technologies are effective, the final effluent will still be polluted twice by the residual water at the outlet, and bacteria will exceed the standard. problems, and it will inevitably cause the structure and process of the water purification device to become more complicated, the manufacturing cost will rise sharply, and the power consumption will increase

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