ADSORPTION STUDIES USING LATERITE MATERIAL TO REDUCE POLLUTION FROM MARIGOLD PROCESSING UNIT

In present scenario many industries use marigold flower as raw material in manufacturing of paints, cosmetics, perfumes, medicines etc.., the waste produced from marigold processing unit is in liquid form, which possess problems with excess BOD, COD, pH, Chlorides, Turbidity and Total solids. The treatment facilities available in the existing unit does not meet the disposal standards.The raw wastes from marigold processing unit was collected and analyzed for initial characteristics. The experiment was carried out using the process of adsorption in which laterite is used as adsorbent. The Whole study of adsorption characteristics of above pollution parameters are done in column study. to see the performance evaluation by varying rate of flow for constant depth of adsorbent, constant rate of flow for varying depth of adsorbent and comparison of the result of after treatment and before treatment is done. The efficiency of BOD, COD, pH, Chlorides, Turbidity and Total solids removal was found to be dependent on various parameters like flow rate(l/m), depth of adsorbent, contact area and contact period and by knowing the initial and final concentration, the percentage of removal was calculated. The results obtained were positive, quite encouraging and interesting.