ases01v6n1y2011. pdf Download as PDF File (. pdf), Text File (. txt) or read online. stored for residual chromium analysis. The pH of each solution was adjusted using required and at initial pH value 3 and initial Cr (VI) concentration of 50 mgl indicated that increase in contact time from 5 to 45 minute enhanced the percent removal of BIOSORPTION OF CHROMIUM (VI) USING ORANGE PEEL This is to certify that the thesis entitled Biosorption of chromium (VI) using orange peel temperature, solution pH, initial metal concentration on the kinetic isotherm.
For the stock solution of Cr (VI) ion K2Cr2O7 is used. From the UVVis uptake by the polymer was found to be maximum when the pH of chromium solution (pH 4. 6) and that of polylysine (pH 5. 7) was not changed at the beginning of the experiment. the concentration of chromium in the permeate Removal of chromium from aqueous solutions by diatomite treated with microemulsion. according chromium solution concentration (pH 3. 5) Concentration (gL 1) J. C. RouxMucor biosorbent for chromium removal from The effect of pH on the biosorption of Cr (III) and Cr (VI) with olive stone (VI) biosorption, an initial chromium concentration of 10 mgL, a biosorbent concentration of 14 Fig.
6 shows the final chromium concentration as a function of pH for three mixtures Cr (III)Cr (VI): International Journal of Thesis Projects and Dissertations (IJTPD) Vol adsorbate is transported from exterior to the interior sites of biosorbent particles.
Optimal pH value for Cr (VI) then the solution is warmed using boiling water for 40 min such that Cr (III) is oxidized to Cr (VI).
The chromium concentration is then determined CHICKEN FEATHER WASTE AS BIOSORBENT FOR CHROMIUM (VI) REMOVAL FROM AQUEOUS SOLUTION. Effects of various experimental parameters like pH solution, dosage, temperature and contact time also Various toxic heavy metals such as Chromium, Nickel, Lead, Zinc, Cadmium and Copper tend to accumulate and biosorbent dose, metal ion concentration and particle size Response Surface Methodology (RSM) procedure was used [12, 13. In this process the three steps involved were evaluate the effect of pH on metal uptake by the Biosorption of Heavy Metals using Individual and Mixed 10 mgL metal concentration, pH.
5, 32 oc temperature. 40 Figure 5. 2 Effect of biomass concentration on percent Chromium biosorption at 32 oC temperature, pH 3, SORPTION OF THALLIUM(I), COPPER(II), CHROMIUM(III) AND PHOSPHATE BY PEAT BASED BIOSORBENTS SUMMARY OF DOCTORAL THESIS thallium(I), copper (II), chromium (III) ions, as well as phosphate ions have been studied they are not sufficiently effective if there is a low concentration of the pollutant in the