|Project field: Cooling tower water treatment
Project Start Date: 2016
|Terna manages the Italian transmission grid, one of the most modern and technologically advanced in Europe.
“We [Terna] will invest 4 billion euro in the next five years to promote the integration of renewable sources and to meet society’s demands for a secure electricity supply. “
|COOLING TOWER SYSTEM
4 X Cooling towers of 60 m3/h
UET REACTOR SIZING
1X(1X8) UET-STD Reactors
MAKE UP SOURCE
100% Reused Water
|The UET unit treating 4 cooling towers on site|
|The picture above was taken before the UET start up, showing the evaporator condenser tubes that were constantly full of scale. The scale sedimentation prevented the ability of the water in the cooling tower to cool the tubes, so the customer suffered from constant stoppages.|
|UET rectors full of scale before cleaning||UET reactors after scale was removed|
The cycles of concentration rose from 1.7 before the UET start up to 7.3 . Before UET, it averaged 9.25 m³/day. After UET, the make-up water has been recorded with an average of 7.26 m³/day – a 19% reduction.
Blow–down has been reduced from 2583 liters/day to 28 liters/day – an ALMOST 100% REDUCTION.
100% chemical additive-free solution
Total amount of wet scale collected during the last cleaning: 90 kg. No indications of scaling in the heat exchanger.
Free chlorine has been detected and bio-contamination is under control.
MINERAL BALANCE AND SILICA REMOVAL
The water analysis data were obtained in reports from Terna. A significant reduction in the silica, alkalinity and total hardness values of the tower basin was observed, which proves the precipitation of excess minerals in the reactors.
Terna is another example of the ability of UET to stablize the water. It was observed that the historical scale was pealing off of the condenser tubes, only with the use of UET, without adding any acid and manual cleaning.
By raising the cycles of concentration to 7.3 from 1.7 with close to 5000 μS/cm of conductivity, the customer was able to reduce 81% of the water consumption and 100% of chemical use.
… in the Presidential Green Chemistry Challenge Award in 2009, your product clearly demonstrates both technical excellence and a commitment to protecting human health and the environment. We applaud your contributions to green chemistry.
In every building project we have undertaken with UET we have received excellent advice and seen significant improvements in the water systems within a short time – sometimes within the first month. We have no doubts that UET’s technology yields excellent results very quickly.
The routine service provided by UET includes site visits, water analysis reports, on-going service to the units, replacing consumable items and fixing any problems. The UET personnel are always professional and pleasant. We highly appreciate and strongly recommend using UET’s technology and equipment.
The UET system performs work well, allowing financial savings and contributing to the environment. We plan to test and gradually introduce your systems in our other divisions. We thank UET for your technical support, expertise and dedication to improving our water systems.
In the 35 years that I have worked in water treatment and irrigation, I have never come across such an efficient system. I recommend the excellent service, the rapid response and the professionalism of UET.
UET was chosen to supply systems to treat and recycle waste water utilising their unique technology and know-how. Laboratory results show that the water recycling results exceed the standard requirements, and we appreciate the highly professional way that UET has initiated, designed and installed its integrated solution.