Azo dyes are among the oldest man-made chemicals and they are still widely used in the textile, printing and the food industries. About 10%-15% of the total dye
The sorption behavior of polar or ionizable organiccompounds, such as p-nitrophenol, phenol and aniline, in thewater/organobentonite systems is investigated. Bo
Cattle dung, firewood, and crop straw have being used as survival necessities by farmers and herdsmen for thousands of years in Tibet. Until recently such bioti