Microorganisms play a significant role in bioremediation of heavy metal contaminated soil and wastewater. In this study, heavy metal resistant fungi and bacteria were isolated from the soil samples of an electroplating industry, and the bioaccumulations of Cr(VI) and Ni(II) by these isolates were characterized to evaluate their applicability for heavy metal removal from industrial wastewaters. ...

to cobalt with negative results for chromium, nickel and cement. Both prostheses were removed and the joints were sterile but contained grey pultaceous material with a relatively high cobalt and chromium content; there were multiple acetabular fractures on each side and the acetabular wall was paper-thin. Following the removal of the second prosthesis she became cobalt-negative and her urinary ...

This research investigates the use of a common food waste product for removing four different types metals typically found in stormwater. Whole, unprocessed oyster shells are explored stormwater management infrastructure that addresses water quality concerns. The role shells’ surface area, exposure time, and solution’s initial concentration on removal efficiency were examined. Beaker scale expe...

The present study reports the use of raw, iron oxide, and aluminum oxide impregnated carbon nanotubes (CNTs) for the adsorption of hexavalent chromium (Cr(VI)) ions from aqueous solution. The raw CNTs were impregnated with 1% and 10% loadings (weight %) of iron oxide and aluminum oxide nanoparticles using wet impregnation technique. The synthesized materials were characterized using scanning el...

S. Ponmani and C. Udayasoorian Abstract -A new class of nano scale zero valent iron (nZVI) particles supported on activated carbon (AC) were synthesized and the feasibility of using nanocomposite (AC+nZVI) for the removal of Cr(VI) in water was investigated through laboratory batch test. Nanocomposite was synthesized by impregnating carbon with ferrous sulfate followed by chemical reduction wit...

Metal contamination in groundwater often occurs various industrial processes. Studies have confirmed that polysulfide could reduce hexavalent chromium to trivalent chromium, achieving the effect of situ stabilization. For other metal groundwater, whether also had a stabilizing ability achieve remediation. This research focused on metals addition contaminated including lead, nickel, zinc, copper...

An evaluation of the chromium(VI) adsorption capacity of four magnetite sorbents coated with a polymer phase containing polymethacrylic acid or polyallyl-3-methylimidazolium is presented. Factors that influence the chromium(VI) removal such as solution pH and contact time were investigated in batch experiments and in stirred tank reactor mode. Affinity and rate constants increased with the mola...