Process method for treating domestic sewage

Abstract

The invention discloses a process method for treating domestic sewage. The process method comprises the following steps: S1, collecting the domestic sewage into a sewage collection tank through a drainage pipeline; S2, enabling the sewage to pass through a grid channel to remove suspended matters in the sewage; S3, introducing the sewage into a flocculation tank, adding a flocculating agent into the flocculation tank, and carrying out flocculation treatment on the sewage; S4, introducing the sewage into a neutralizing tank, adding a neutralizing agent into the neutralizing tank, and removing chemical ions in the sewage; S5, introducing the sewage into a disinfection tank, adding a disinfectant into the disinfection tank, and carrying out disinfection treatment on the sewage; S6, introducing the sewage into an ultraviolet disinfection chamber, and irradiating the sewage with ultraviolet rays for 2-3 hours to realize thorough sterilization and disinfection of the sewage; and S7, introducing the sewage into a reservoir for completing collection of the treated sewage. The process method has the following advantages and effects that bacteria and pathogens in sewage are thoroughly killedby adopting a disinfectant and ultraviolet irradiation, and the sewage treatment effect is improved.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a process method for treating domestic sewage. Background technique [0002] Domestic sewage refers to water that has been used and can no longer be used, including water for washing face, water for washing vegetables, water for laundry, etc. Domestic sewage is easy to rot and produce stench. At the same time, bacteria and pathogens in domestic sewage will cause the spread of infectious diseases. Therefore, domestic sewage must be treated before discharge. [0003] Chinese patent CN108164093A discloses a sewage treatment process, which includes the following steps: (1) The sewage is initially filtered through the grid to remove the suspended matter and floating matter in the sewage; (2) The sewage is passed into the flocculation tank, Add flocculants to flocculate the sewage; (3) Pass the sewage into the neutralization tank, and add a neutralizer to the neutralization tank, and n...

AI Technical Summary

Problems solved by technology

However, because there are many types of bacteria in the sewage, it is impossible to completely kill the bacteria in the sewage by only using disinfectants, which will affect the treatment effect of the sewage and needs to be improved.

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