REMOVAL OF PYRIDINE BY ADSORPTION

Abstract

As we all know that pyridine is one of the most important aromatic compound in pharmaceutical and pesticides industry. Many important compounds which are derived from pyridine like 2- picoline, 3-picoline, 4-picoline and quinoline have very wide applications, but these compounds are also have injurious effects when exposed to the environment directly. Although the extent of harmfulness is always depends on the mode of contact to the person, but we cannot ignore the harmful effects in fertility and nervous system etc. so the removal of these compound are always necessary. In the present study the removal of pyridine was taken as an objective. There are many methods which can be directly applied for the removal of pyridine up to permissible level. Among these methods adsorption was found to be one of the best methods for removal of pyridine because of its economical operative cost and easily handling steps. For this purpose PAC was chosen due to its greater surface area, so the batch study was performed and it was also found that the removal of pyridine was higher at its natural pH, while the optimize dose of PAC for removal was found to be 6g/l and time of contact was 4hr, which give 95% removal at 30oC for 100ppm pyridine concentrated solution. From the kinetic study of the obtained data the kinetic was found of pseudo 1st order and the isotherm experiment results indicate that the obtained data was best fitted Hill isotherm model equation.