Chlorination of water in storage tanks

In order to ensure adequate hygienic parameters for food production, water supplied by the local water supply is often chlorinated as part of the water treatment process. However, failures in the water supply network can cause supply interruptions and the appearance of unwanted contaminants in the water. Therefore, it is crucial not only to chlorinate the water, but also to regularly monitor and dose chlorine in storage tanks to support the technological water treatment process.

What water chlorination problems did a food company experience?

A company in the food industry, a manufacturer of sauces, mayonnaise, ketchups, mustards and dressings, approached us with a problem to ensure the continuity of the plant. Two water storage tanks were installed, where chlorination was performed manually and analysis of the liquid level and chlorine concentration in the water had to be performed regularly by a laboratory. This process required significant staff involvement and was time-consuming.

Solution: Automation of chlorine measurement and dosing

Selection of devices for chlorine measurement

We proposed the use of JUMO tecLine Cl2 free chlorine sensors. Due to the need for measurement compensation depending on possible pH level fluctuations in the water, we added a JUMO tecLine pH electrode to the system. Both sensors work in conjunction with the JUMO dTRANS pH02 pH controller.

How does the chlorine measurement and dosing system work?

The JUMO dTRANS pH02 controller performs two key functions:

1. Measuring chlorine and pH levels in tanks.
2. Controlling chlorine dosing into the water via a dosing pump.

To ensure reliable chlorine measurements, a minimum flow rate must be maintained. This is achieved by mounting the chlorine and pH sensors in a special fitting, which is also equipped with a flow indicator.

Implementation of a chlorine measurement system

Installation and calibration of the equipment

During the commissioning of the system, our service specialist trained a company employee in the operation of the equipment. For about a week, he remotely assisted in selecting the settings of the JUMO dTRANS pH02 controller to ensure optimal PID controller parameters.

Automatic maintenance of chlorine levels

The system now automatically maintains the chlorine concentration at the required level of approximately 0.2 mg/l. The JUMO dTRANS pH02 pH controller is interfaced with the JUMO LOGOSCREEN 601 screen recorder, which archives measurement data locally and, thanks to the connection to the local Ethernet network, the data is available on the company's server.

Water level measurement in storage tanks

The measurement of the water level in the storage tanks, carried out using JUMO MAERA F27 hydrostatic probes, has also been added to the system.

Project result – automation of chlorine, pH and level measurement

Process continuity and automation

The measurement and dosing of chlorine in the liquid is now carried out continuously and fully automatically. The system does not require constant supervision, but only periodic calibration of the pH and chlorine probes, which is less time-consuming than the previous manual operation.

Increased efficiency and safety

The automation of the process has made it possible to increase production efficiency and ensure a constant level of water hygiene, which is crucial for the quality of food products.

The use of advanced technology to measure and dispense chlorine in water storage tanks has allowed the food company to improve the efficiency of its production processes and ensure a high level of hygiene. Measuring sensors such as the JUMO tecLine Cl2 chlorine sensor, the JUMO tecLine pH electrode, the JUMO dTRANS pH02 pH transmitter and controller, and the JUMO LOGOSCREEN 601 electronic recorder have proven to be reliable and effective in managing water quality in the food industry.

Comments

We encourage you to leave your comments via the form below. They will be posted online once they have been approved through our review process.