Regeneration water factory effluent residual chorine risk prediction method

Abstract

A regeneration water factory effluent residual chorine risk prediction method comprises: data monitoring and collection are performed so that an index monitored and collected is obtained; the data is transmitted to a server through a communication system; effluent residual chorine risk prediction, analysis and decision are performed by the server according to the collected data: the corresponding monitoring data stored in a data base of the server is read, the monitoring data is input in a water quality model and the effluent residual chorine risk prediction of technology is performed; the index influencing effluent residual chorine risk probability is judged according to a potential of hydrogen (pH) value, the water temperature, ammonia concentration and chemical oxygen demand distribution situation monitored under different risk probabilities; and solutions under different effluent residual chorine risk probabilities are made. The regeneration water factory effluent residual chorine risk prediction method is good in model prediction accuracy (the accuracy is higher than 95%) so that when facing water quality change, a researcher can predict effluent residual chlorine risk accurately in time. The regeneration water factory effluent residual chorine risk prediction method offers a certain reference to operation and management of an actual water factory.

Description

technical field [0001] The invention relates to a risk prediction method for effluent residual chlorine. In particular, it relates to a method for predicting the risk of residual chlorine in the effluent of the reclaimed water plant, which can provide a basis for the production, operation and management of the reclaimed water plant. Background technique [0002] The recycling of sewage has become one of the main ways to solve the worldwide problem of water shortage. As an important supplementary water source for the environmental water system, recycled water has shown wide application prospects in agriculture, forestry, animal husbandry, fishery, urban life, and industrial production. In order to ensure the sanitation and safety of reclaimed water in the process of reuse, effective water disinfection process is very important. Due to its strong bactericidal power and low price, liquid chlorine has become a widely used disinfectant in many reclaimed water plants. Most recla...

AI Technical Summary

Problems solved by technology

[0003] However, the content and types of pollutants in reclaimed water are often high, which makes the chlorination disinfection reaction very complicated, and sometimes it is difficult to ensure the concentration of residual chlorine in the water after disinfection.

When the residual chlorine concentration of reclaimed water is lower than the corresponding standard limit (that is, the residual chlorine concentration of the factory water is at risk), the microbial indicators in the water may increase significantly after being transported and distributed through the pipeline network, resulting in water quality deterioration.

In actual operation, if it is detected that the concentration of residual chlorine in the factory water is too low, simply increase the chlorine dosage in the clear water tank or add chlorine to the factory water, which not only lags behind the change of water quality, but may also be caused by excessive chlorine dosage. Lead to negative effects such as increased generation of disinfection by-products in reclaimed water and increased toxicity, which is even more detrimental to the safety of reclaimed water quality

[0004] The existing residual chlorine prediction models are basically established based on water treatment and laboratory tests, which are quite different from the actual situation of the reclaimed water disinfection process.

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