The report also details how New Jersey and North Carolina scientists recommended a maximum chromium-6 concentration of 0.06 parts per billion following the 2008 report, meeting similar resistance that has impeded passage of drinking water standards.
The combinatorial thin film sputtering technique was used to rapidly determine that ∼ 0.69 at.% is the optimum chromium concentration for maximum photoluminescence (PL) intensity in YAG.
The maximum chromium (25.96 ppm DW) content in shoots was also recorded at the same concentration and in the same variety.
The maximum chromium loss was 1.1 wt.%.
The percent chromium adsorption was decreased with increase in initial chromium concentration (Fig. 6).
Maximum chromium removal efficiency was predicted and experimentally validated.
Cetyl trimethyl ammonium bromide (CTAB) pretreatment exhibited maximum chromium removal.
Four operation parameters are considered : rotating disks speed, flow rate of chromium solution, initial chromium concentration and membrane volume.
Cr (III) concentration was determined by taking the difference between total chromium concentration and Cr (VI) concentration.
The residual chromium concentration in the supernatant was determined as given earlier.
