Authors: S Rangabhashiyam M S Giri Nandagopal E Nakkeeran N Selvaraju
Publish Date: 2016/06/17
Volume: 188, Issue: 7, Pages: 411-
Abstract
Packed bed column studies were carried out to evaluate the performance of chemically modified adsorbents for the sequestration of hexavalent chromium from synthetic and electroplating industrial effluent The effects of parameters such as bed height 3–9 cm inlet flow rate 5–15 mL/min and influent CrVI concentration 50–200 mg/L on the percentage removal of CrVI and the adsorption capacity of the adsorbents in a packed bed column were investigated The breakthrough time increased with increasing bed height and decreased with the increase of inlet flow rate and influent CrVI concentration The adsorption column models such as Thomas Adams–Bohart Yoon–Nelson and bed depth service time BDST were successfully correlated with the experimental data The Yoon–Nelson and BDST model showed good agreement with the experimental data for all the studied parameter conditions Results of the present study indicated that the chemically modified Swietenia mahagoni shell can be used as an adsorbent for the removal of CrVI from industrial wastewater in a packed bed column
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