Method for predicting drinking water disinfection by-products based on multiple linear regression method

Abstract

The invention discloses a method for predicting drinking water disinfection by-products based on a multiple linear regression method. The method comprises the following steps: acquiring water age prediction data of drinking water to be predicted and water quality data of the drinking water to be predicted; and inputting the water age prediction data and the water quality data into a linear regression equation for predicting the drinking water disinfection by-product to obtain a drinking water disinfection by-product prediction value. By adopting the method disclosed by the invention, the disinfection by-products in the water supply network can be efficiently and economically predicted.

Description

technical field [0001] The invention relates to the technical field of water quality detection, in particular to a method for predicting disinfection by-products of drinking water based on a multiple linear regression method. Background technique [0002] The urban water supply network is an important infrastructure to ensure people's living standards, and the safety of drinking water has received more and more attention. However, at present, the water supply network facilities in most cities are old, the information is not perfect, and the management methods are backward, which leads to "secondary pollution" of drinking water that has been treated up to the standard. Therefore, it is necessary to maintain an appropriate amount of residual chlorine in drinking water. When the water plant adds chlorine disinfectant, it will react with organic matter in the water to generate disinfection by-products (DBP S ). DBP S Mainly include: trihalomethanes (THMs), haloacetic acids (H...

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Problems solved by technology

These disinfection by-products will pose a huge threat to human health, DBP S The content is often very low and cannot reach the detection limit of existing instruments, so pretreatment such as concentration or extraction of water samples is required, and instruments such as gas chromatography (GC) and gas chromatography / mass spectrometry (GC / MS) are required to detect The cost is high, and it will consume a lot of time and money when measuring disinfection by-products. Therefore, it is of great practical significance to find an efficient and economical method for detecting disinfection by-products in the water supply network to ensure the safety of drinking water.

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