Removal of Vitamin B6 (Pyridoxine) Antibiotics Pharmaceuticals From Aqueous Systems By ZnO

Pharmaceutical products are being increasingly discovered, in the environment. However, traditional treating systems do not provide an adequate remedy, for pharmaceutical drug elimination and still there is not a regulated criterion for their limitation in water. Adsorption is one of the most efficient and practical techniques to remove pollutants from water. ZnO to be used as adsorbent being abundant and cheap has removal capabilities for certain pollutants from water such as drug,drug, metal ions, phenol, and different anions. In this paper the potential of ZnO for removal of vitamin B6 has been discussed. Different parameters like, initial drug concentration (5-80 mg/L), temperature (15, 25, and 50 ºC), adsorbent dosage (0.001-0.15gm), were investigated. The adsorption of drug was best at neutral pH. The adsorption uptake decrease with increase in initial drug concentration, but increase with the amount of adsorbent and temperature. The equilibrium was evaluated using Langmuir, Freundlich isotherms. The maximum capacity of adsorption obtained from the Freundlichmodel was 108.556mg/g.