Adsorption Kinetics, Isotherm and Equilibrium Studies of Nitrate, Nitrite, Ammonia and Phosphate from Synthetic Aqueous Solutions Using Fish Scales as Adsorbent

Abstract

Out of total water present on earth 97.5% is salt water and only 2.5% water is fresh water which is used for several recreational purposes which is getting polluted due the disposal of waste water directly in to the fresh water bodies. The effluents that are disposed in to the water bodies are from different sources i.e. from industries which are the major cause for the pollution of water bodies which release heavy metals and chemical wastes and the other major reasons for water pollution are effluents form the households and disposal of agricultural wastes directly in to the water bodies without treatment where major contaminants are Nitrates, Nitrites, Ammonia, Phosphates. The present study mainly focus on removal of four major pollutants from the agriculture wastes i.e. Nitrates, Nitrites, Ammonia, and Phosphates using naturally available Adsorbents with the process known as Adsorption. The adsorbents used in this study are Fish Scales and Hemi melon peels and several studies has been done to measure the efficiency of the adsorbents for the removal of contaminants such as Equilibrium studies, Kinetic studies, Isotherm studies. After complete analysis and studies the obtained results showed that 95% to 98% of the contaminants has been removed effectively with the adsorbent dosage varying from 0.2gm to 0.6gms and at the contact time varying from 0 to 110 min respectively.