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6 Process Automation Instruments in Water Treatment

Water treatment processes require the use of various instruments to monitor and control the quality of the water. Below are some commonly used instruments in water treatment, along with their principles, features, and advantages.

1.pH meter

A pH meter is used to measure the acidity or alkalinity of water. It works by measuring the voltage difference between a pH-sensitive electrode and a reference electrode. The pH meter is highly accurate, easy to use, and provides instantaneous readings. It is an essential tool for maintaining the correct pH range for different water treatment processes.

2.Conductivity meter

A conductivity meter measures the electrical conductivity of water. It works by measuring the resistance of water to an electrical current. The conductivity meter is useful in monitoring the concentration of dissolved salts and other ions in the water. It is highly sensitive and provides accurate and fast results.

3.Turbidity meter

A turbidity meter measures the level of suspended particles in water. It works by passing light through the water sample and measuring the amount of light scattered by the particles. Turbidity meters are highly accurate and provide real-time readings. They are useful in monitoring the clarity of the water and ensuring that the water meets regulatory standards.

4.Dissolved oxygen meter

A dissolved oxygen meter measures the concentration of oxygen dissolved in water. It works by using an electrode to measure the oxygen concentration based on the oxygen’s electrochemical activity. Dissolved oxygen meters are useful in monitoring the level of oxygen in the water, which is essential for aquatic life and other water treatment processes.

5.Total organic carbon analyzer

A total organic carbon analyzer measures the concentration of organic carbon in water. It works by oxidizing organic carbon in the water sample and measuring the amount of carbon dioxide produced. Total organic carbon analyzers are highly sensitive and provide accurate results. They are useful in monitoring the quality of water and ensuring that it meets regulatory standards.

6.Chlorine analyzer

A chlorine analyzer measures the concentration of chlorine in water. It works by using a chemical reaction to produce a color change that is then measured by a photometer. Chlorine analyzers are highly sensitive and provide accurate results. They are useful in monitoring the level of chlorine in the water, which is essential for disinfection purposes.

In conclusion, the above-mentioned instruments are widely used in water treatment processes due to their accuracy, reliability, and efficiency. These instruments help to monitor and control the quality of water and ensure that it meets regulatory standards.


Post time: Feb-24-2023