Removal of phosphate from electrocoagulation post-treatment phosphate reduction using Octolig®

ABSTRACT

The present study examined the removal of phosphorus following electrocoagulation post-treatment using a sample from a commercial firm. Samples were subjected to column chromatography using Octolig® a polyethylenediimine covalently attached to high-surface-area silica. Two commercial samples with significantly different phosphorus concentrations were evaluated: 10.2 ppm from polyphosphates and raw sample of 983 ppm P. After passing over Octolig®, the sample phosphate concentration was reduced to values of <0.05 ppm P.

KEYWORDS:

• Column chromatography
• Octolig®
• phosphorus
• polyphosphate
• removal

Acknowledgments

The authors thank Josh Rohman (laboratory supervisor, PSC Purified Phosphates) for his cooperation and Peter Letizzia (F&T Water Solutions) for his interest.