Is Biological Wastewater Treatment Cost-Effective for Pharmaceutical Plants? Yes, biological wastewater treatment is highly cost-effective for pharmaceutical plants, offering savings on chemicals, energy, and maintenance. Unlike chemical-intensive methods (e.g., advanced oxidation), it relies on natural microbial processes, slashing chemical procurement and disposal costs by over 30%. Anaerobic stages also generate methane-rich biogas, which can be used for heating or...