Reduction of Dye component level by using the waste based materials- Groundnut shell powder and Neem seed powder

Methylene blue dye discharged from the textile industries is a thiazine dye which is toxic and non-degradable chemical. Activated carbon is mostly used adsorbent to effectively remove Methylene blue from industrial waste waters. Low-cost adsorbents like groundnut shell powder and neem powder were used for the dye component level present in a solution as batchmode treatment for the Methylene blue concentration of 200mg/litre and fixed adsorbent concentration of 0.5 grams Adsorbent I (Neem seed powder) have an excellent adsorption capacity of 85% where as for the same process condition, Adsorbent II (Groundnut shell powder) showed only 15% adsorption. The Effect of contact time on Adsorbate (Methylene blue) concentration removal data obtained for the both adsorbent I & II shows linear increase of percent removal capacity. For adsorbent I it shows maximum of 95% in 100min for adsorbent II 80 % is the maximum Percent removal.