The chemical or acid neutralization tank from Best Technology automatically adds neutralization solution to facilitate disposal of industrial wastewater. The automated chemical neutralization system takes the guesswork out of determining the correct amount of base or acid to add to industrial wastewater to neutralize it for disposal.
Why Use a Chemical Neutralization Tank?
After passivation, part cleaning or other chemical processes, the passivation acid, alkaline cleaners, and other chemicals cannot be re-used but also cannot be disposed of until they are neutralized to a suitable pH level. This can be achieved using a neutralization tank or neutralization system.
Requirements vary by chemistry and municipality for a neutralization tank, but commonly a pH between 6 and 10 is acceptable for disposal into facility drains and sewer, assuming there are no hazardous wastes within the used chemistry.
Chemical Neutralization Cart for Industrial Wastewater Treatment
Acid Neutralization Process
The acid neutralization system uses soda ash, sodium hydroxide or similar to make an alkaline solution. When the alkaline solution is added to acid wastewater in the neutralization tank, it increases the pH in the acid neutralization tank. This facilitates disposal of used acids such as nitric acid for passivation.
Base / Alkaline Neutralization Process
The alkaline neutralization system in a neutralization tank uses phosphoric acid or similar acid solution to decrease the pH of alkaline wastewater. The neutralization tank facilitates disposal of used alkaline solutions such as alkaline cleaners used for parts cleaning.
Automated Acid Neutralization System
Portable Chemical Solutions Neutralization Wet Processing Cart
The portable chemical neutralization system or neutralization tank allows for no-touch neutralization and easier disposal into facility wastewater treatment or municipal sewer systems.
A pump on the neutralization cart transfers used fluid for neutralization to the cart storage tank. A neutralization tank metering pump measures a predetermined amount of neutralization solution from a separate container connected to the cart, and then adds it to the neutralization tank. The solution is constantly circulated and monitored via pH monitor. The neutralization tank metering pump continues adding neutralization solution until the pH is within a preset range.
The cart is on wheels/casters for easy neutralization tank transport to application and disposal locations.
This automated chemical solution neutralization tank system simplifies disposal of both acids and alkaline solutions.
Video: Mobile Chemical Neutralization Cart for Metal Finishing Tanks
Applicable Systems which can Utilize a Chemical Neutralization Tank
- Aqueous cleaning parts washers and ultrasonic cleaning systems which use a high pH (base/alkaline) solution typically containing sodium hydroxide
- Passivation systems which use low pH (acidic) solution to remove free irons from part surfaces
- Electropolishing systems with acidic electrolytes
Acid Neutralization Cart
The acid neutralization cart shown below neutralizes up to 40 gallons of nitric or citric acid per day. The neutralization system monitors the pH level in the neutralization tank and automatically adds sodium hydroxide until the pH inside the cart reaches a preset level. The cart is on casters to allow for easy movement to process tanks.
To learn more about adding an acid neutralization tank or neutralization system to your manufacturing workflow, contact an applications engineer at Best Technology today.