In some sewage treatment processes, particularly in biological treatments like activated sludge systems, additional nutrients may be required to support microbial growth and activity. Nitrogen and phosphorus are commonly added in the form of ammonium sulfate and phosphoric acid, respectively. Proper nutrient balance enhances the biological breakdown of organic materials, improving treatment efficiency.
2. Disinfectants Post-treatment, it is crucial to disinfect the treated effluent to eliminate harmful pathogens. Chlorine, ozone, and ultraviolet (UV) light are commonly used disinfectants in STPs. Chlorination, while effective, requires careful management due to the formation of potentially harmful by-products. Conversely, UV disinfection offers a chemical-free alternative, reducing the risk of toxic residue but necessitating thorough filtration of water before application.
Stability testing is a crucial component in the development and quality assurance of both active pharmaceutical ingredients (APIs) and finished pharmaceutical products (FPPs). It ensures that these substances maintain their intended quality, efficacy, and safety during their intended shelf life, providing valuable information to manufacturers and healthcare providers alike.