Neutralization

Description

• Adjust the pH of an acid or alkaline bath to around 7
• Compatible acid baths and alkaline cleaners may be used to neutralize one another

Advantages

• Possibly less expensive disposal cost; either off-site disposal or possible discharge to a POTW
• Some waste may no longer designate as dangerous waste after neutralization

Implementation Process

• Determine the compatibility of acidic and alkaline baths and solvents
• Identify the regulations that affect the treatment, including
• Wastewater discharge permit
• Dangerous waste treatment-by-generator
• Develop a procedure so that the correct amount of each chemical is added, without over-treating
• Train employees on proper procedures and tracking