Cloud monitoring of tap water secondary supply - wide application of multi parameter water quality a

2022-08-19 16:22

Urban water supply is a pipeline network system with complex structure and huge scale, which is the lifeblood of the city for survival, one of the basic information for urban management departments to plan, build and manage, and the basis for water supply enterprises to achieve "high-quality water supply and serve the society".


Basic parameters of tap water quality monitoring

According to the development in the field of water quality monitoring and the requirements of relevant national standards, the most basic water quality parameters to be tested by the water network management are as follows:

Residual chlorine

Residual chlorine refers to that after chlorine is put into water, in addition to the amount of chlorine consumed by bacteria, microorganisms, organics and inorganic substances in the water, there is still a portion of chlorine left, which is called residual chlorine.

If there is no chlorine in the factory water or the amount of chlorine added is insufficient, bacteria, Escherichia coli and other microorganisms may multiply in the pipe network, affecting the water quality of the pipe network. A certain amount of residual chlorine must be kept in the tap water to ensure the safety of the microbial indicators of drinking water. The Hygienic Standard for Drinking Water stipulates that the chlorine shall not be less than 0.3mg/L after 30 minutes of contact with water. In addition to the above requirements for the factory water of centralized water supply, the terminal water of the pipe network shall not be less than 0.05mg/L.


Turbidity refers to the turbidity of water, which is a measure of the reduction of water transparency caused by insoluble substances in water. It is a crucial indicator for water quality. The research shows that when the turbidity of the water is 2.5 NTU, the organic matter in the water is removed by 27.3%, when the turbidity is reduced to 0.5 NTU, the organic matter is removed by 79.6%, and when the turbidity is 0.1 NTU, the content of pathogenic microorganisms is also greatly reduced.


PH is one of the most important and frequent detection items in chemistry and an important parameter for evaluating water quality. Although it has no direct health effect, it will affect other water quality indicators and water treatment effect. Too low PH value will corrode the water pipe, and too high PH value will cause dissolved salt to precipitate, reducing the chlorination disinfection effect. At the same time, long-term drinking of water with low or high PH will also have a certain impact on human physiological health.


Conductivity is an indicator of the conductivity of solution. Generally, the more impurities in the water, the stronger the conductivity of the water. Therefore, the conductivity value can reflect the amount of impurities in the water body from the side; The purer the water, the smaller the conductivity.



Noble Water Quality Monitoring System Cloud Monitoring

The online monitoring system of domestic water quality is an automatic water quality monitoring system set up on site. It is used to continuously and automatically monitor the water quality change of the measured water body, objectively record the water quality status, timely discover abnormal changes in water quality, and then report the water quality of the water supply point. It aims to master the continuous monitoring of residual chlorine, turbidity, PH, conductivity and other parameters of drinking water pipe network, prevent water pollution accidents, and provide technical services and monitoring data for customers, water companies and relevant regulatory authorities.


Automated real-time remote monitoring

It replaces the traditional, tedious and manual inspection and analysis of water supply pipe network, overcomes the adverse impact of slow feedback and lack of effectiveness of pipe network monitoring and reporting, and greatly reduces the labor consumption. With the continuous increase of water supply network, the water supply area is becoming larger and larger. It is an effective way to establish a real-time, remote, accurate and automatic network monitoring system.


Realize real-time water quality monitoring of pipe network

Carry out real-time online monitoring on the most important core key parameters of pipe network water quality, such as turbidity, residual chlorine, PH, conductivity, etc., and establish an effective monitoring management mechanism and networked monitoring equipment. Necessary water quality monitoring instruments and means can detect unexpected water pollution accidents as early as possible and reduce the occurrence of health and safety accidents endangering the water supply network and drinking water.


Provide reliable basis for efficient and stable operation of pipe network

The historical data of the pipeline network is provided to reflect the staged health status of the water quality of the pipeline network, provide a reasonable basis for system decision-making for the operation of the pipeline network, and improve the timeliness and scientificity of decision-making.

According to the basic parameters to be detected in the water quality monitoring of the water supply network, it is necessary to establish a multi parameter online water quality analysis system with remote communication function when monitoring the water quality of the water supply network in multiple areas.

In order to better serve the water quality safety of the tap water network, Noble Technologies launched a multi parameter online water quality analysis system for the market.


Performance characteristics of the system

★ Parameters that can monitor water quality in real time: water temperature, PH, residual chlorine, turbidity, conductivity, etc. Different acquisition schemes are provided according to different environments to ensure the accuracy and long-term stability of data. It can be integrated into multi parameter cabinet instrument.

★ With RS485 communication interface, it is convenient for on-site users to manage and view data in real time on the upper computer.

★ The system consists of sensor/electrode, transmitter (instrument), wireless module and other equipment

★ Data remote monitoring can monitor data in a short distance by wire, or alarm notification and data transmission can be carried out through wifi, gprs and other wireless modules through the Internet. Computers or mobile devices can remotely conduct real-time online monitoring of the corresponding monitoring points of the water pipe network through relevant software (such as the upper computer software system, mobile phone APP), and can remotely connect with the corresponding regulatory authorities. It is convenient for users to receive alarms and store relevant data at the remote end.