Analysis of Application of the Almond Green Hull Derived Carbon in Hexavalent Chromium Removal from Synthetic Wastewater

The discharge of industrial effluents containing hexavalent Chromium into the environment can be very harmful to living things. Therefore, prior to this discharge into the environment, hexavalent Chromium should be removed from contaminated water and especially from wastewaters. This study aimed to analyze the effects of removal of hexavalent Chromium using derived carbon from almond green hulls.
In the present study, derived carbon from almond green hulls of zonal district of South Khorasan (Birjand) were used to remove hexavalent Chromium from Synthetic wastewater while contact time, density, PH, absorbent dosage and temperature were changed. Batch tests were discontinuously performed on Shaker. At the end, to assess hexavalent Chromium, Spectrophotometer UV / VIS Spectrometer T80 at 540 nm wavelength was used.
Findings: The findings of the present study revealed that hexavalent Chromium removal was highly dependent on PH. Most of the results showed high removal at PH=2. Furthermore, it was found that as the absorbent dose, contact time and temperatures were increased, removal percentage would increase as well. Surprisingly it was understood that because of limited space in the absorbents, when the initial hexavalent Chromium density was increased, the removal efficiency was decreased.
Discussion and Derived carbon from almond green hull and derived carbon, does efficiently remove hexavalent Chromium from industrial water wastes.