Russian water treatment plant upgrades aerators

The water-treatment plant in Tyumen City, Russia provides clean drinking water for thousands of people yet was suffering from regular shutdowns and rising costs caused by blockages...

The water-treatment plant in Tyumen City, Russia provides clean drinking water for thousands of people yet was suffering from regular shutdowns and rising costs caused by blockages.

Water in many parts of Russia is sourced underground and has a high iron content plus traces of manganese and silicic acid. These contaminants present a two-fold challenge for water treatment plants: they must of course be removed but in the process of that they cause damage to purifying equipment – aeration systems in particular.

Tyumen City’s water-treatment plant in south Russia is one example of a site where equipment has suffered from pumping such water. Previously, the plant relied on a pressurised aeration system of polyethylene pipes and air blowers.

According to Tsurumi, the system failed to meet the latest industry standards and was susceptible to blockages. The air blowers also needed a large power supply and introduced more than four times the required amount of air, which generated surface foam. Plus the system needed cleaning at least once a month to ensure a good level of efficiency.

To increase efficiency at the facility – and reduce costs – Reshetilovs Russia, Tsurumi’s Russian distributor for aerators and sewage pumps, installed a mechanical aeration system consisting of two TRN aerators and a BER submersible ejector from Tsurumi. Once installed, in-house testing showed that power requirements are reduced by up to 435 MW per year and efficiency yields remain higher for longer, according to the manufacturer.

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