[PDF] Top 20 Study on removal of hexavalent chromium [VI] from aqueous solution using beach sand

... fine beach sand taken is a non toxic and easily available natural ...The removal of chromium from potassium dichromate solution was observed to be successful using the ... See full document

... present study. Samples were collected from the flasks at predetermined time intervals for analyzing the residual chromium concentration in the ...of chromium in each flask was investigated ... See full document

... of chromium onto the biomass, CCD with 16 experiments, which includes 8 cubic point runs, 6 center point runs and 2 axial point runs, were used to optimize of process ...this study, statistical software ... See full document

... of chromium ion and pH of the ...the solution increases, the sorbent undergoes deprotonation and the adsorption capacity ...high removal of Cr(VI) at low pH was reported earlier using ... See full document

... this study is to identify the most appropriate agricultural byproduct among Strychnos potatorum (nirmali) and Azadirachta indica (neem) seeds for the removal of Chromium (VI) and Iron (III) ... See full document

... The effect of biomass dosage on the biosorption of Cr (VI) ions was studied using different biomass dosages in the range of 1–10 g/l (Figure 4). The results showed that biosorption efficiency is ... See full document

... biosynthesized from green tea (GT) for its possible application in reducing toxicity and pollution caused by ...standard solution of K 2 Cr 2 O 7 on addition of iron nanoparticles is used as an indicator of ... See full document

... This study herein was investigated the removal of chromium(VI) from an aqueous solution using persimmon tannin gel and its subsequent recovery as ...the ... See full document

... Cr(VI) from entering wastewaters and finally the aquatic ...metal removal, requirements for expensive equipment, generation of toxic sludge ...the removal of toxic heavy metals from ... See full document

... striking from the obtained results ...of hexavalent chromium ions on the surface of chitosan coated spent Pleurotus ...the removal of hexavalent chromium from industrial ... See full document

... wastewater from vari- ous industries like electro plating, leather tanning, glass, acid mine drainage, and ceramic enters hexavalent Chro- mium (Cr) which is a very toxic and harmful metal in to water ... See full document

... the removal of chromium ions from aqueous ...time, solution pH, adsorbent dose and initial chromium ions concentrations on the performance of the adsorbent on the sorption ... See full document

... their removal becomes an absolute necessity. Hexavalent chromium metal ion is one of the major pollutants in the environment and is frequently present in waste water released from various ... See full document

... (VI) removal from aqueous solution and emphasizing its possibility for treatment processes of ...High chromium removal is possible at low pH, high adsorbent dosage and low ... See full document

... system from natural process such as volcanic activity and weathering of ...effluents from mining, ore processing, metal processing, metal polishing, cleaning, paint manufacturing and battery manufacturing ... See full document

... A study of the feasibility of using CH and BP as acid treated biosorbents for the removal of heavy metal ions from aqueous solutions was successfully carried ...for chromium ions ... See full document

... Cr(VI) from industrial wastewater ...Cr(VI) from polluted water using different materials as adsorbent like charcoal, activated charcoal and activated aluminum [7], bentonite [4], wool ... See full document

... uptake from aqueous ...effective removal of Cr(VI) ions from aqueous solution has been ...studied using Fourier transform infrared (FTIR) ... See full document

... the solution because it influences ion speciation in the ...the solution as illustrated in Fig. 3a. To study the effect of the pH on EC with an aluminum electrode, the initial pH was varied ... See full document

... by using Fourier transform infrared spectrometer (FTIR) (Perkin Elmer, Spectrum 1000), in the range 4000-400 cm -1 , (iv) spectrophotometer UV-vis (Varian, 1E) for colorimetric analysis of Cr(VI), (v) ... See full document