| At present, the water resource is lack increasingly. Reclaiming water is a important way to solve the status of the lack of water resource, its may problem is the security of water. Disinfection can kill the pathogenic pollutions and prevent the spread of epidemic. It is a important step to ensure the security of water. Disinfection can kill most microorganism and satisfy the request of disinfection.There are a lot of researches about the disinfection of drinking water, but it is lack about the disinfection of sewage. The kind and quantity of pollutants in sewage are more than it in the drinking water. The disinfection status of sewage is harder. According to the disinfection theory of the drinking water, the disinfection of the reclaimed water can' t satisfy the request. In order to satisfy the request of reclaimed water and the security, the disinfection of reclaimed water must have theory to fit to it.We use sodium hypochlorite to disinfect. The research about the attenuation model of remanent chlorine is through the beaker experimentation. We are through the stair attenuation and the secondary attenuation model to simulate the attenuation of remanent chlorine and add the instantaneous wastage to the attenuation model. The research indicate the attenuation of remanent chlorine is fit to the stair attenuation model C=(C0-D)exp(-k' t).The research about the main influence of disinfection indicate that the influence of the ammoniate have more influence than COD, the value of pH, turbidity, the number of microorganism. Through the research, we can know that the ammoniate is the main influence factor of Sodium hypochlorite disinfection. According to it, we can ensure the optimal using quality. |
