Скачать или смотреть Lowering Cooling Tower pH Chemical Alternative

Complete Water Solutions was tasked to assist a customer with chemical alternatives to lowering the pH in the cooling tower to meet the state DNR discharge limits.

Current situation -
The customer had several cooling water loops and towers that are all tied together. The cooling water is used to cool metal treating and forming equipment. Recently the state DNR put a discharge high limit of 9 pH. With the current chemical treatment along with the incoming water source having a already high pH it made it nearly impossible to hit the limit without some form of treatment.

Standard treatment to lowering cooling tower pH usual comes in the form of chemical treatment. Using such products as citric acid, or other acid's to lower the over all pH or the discharge pH. The customer tried this and had a few issues. One being severe foaming and the other being a safety concern. With the limited staff to monitor the system and limited time to deal with foaming issues the customer searched for another option.

We took some water to analyze along modeling what RO could do if we were to use Reverse Osmosis water as a blended make up. Once the modeling had been complete, Complete Water Solutions was able to verify that Reverse Osmosis / Blended with soft water could provide a lower pH feed water thus eliminating the need for acid injection to help lower pH. There were also a few side benefits using Reverse Osmosis Water, one of them was lowering the over TDS (Total Dissolved Solids), this increased the cycles in the tower, resulting in less blow down.

Do you have a specific water requirement to meet? Then give us a call (855) 787-4200 or visit us on the web @ www.complete-water.com