Batch processes are used to treat metal wastes because they are:

Batch processes are used to treat metal wastes because they are:

• A. Simple, dependable, regulated until the wastewater being treated receives satisfactory treatment, and they are easy to control
• B. Expensive and complex, requiring continuous monitoring and automation
• C. Suitable only for small volumes and not easily scaled up
• D. Require continuous chemical dosing and rapid discharge

Answer: (C)