Elimination of microcystin peptide toxins from water by reverse osmosis

✍ Scribed by Neumann, Uwe ;Weckesser, J�rgen

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 88 KB
• Volume: 13
• Category: Article
• ISSN: 1053-4725
• DOI: 10.1002/(sici)1098-2256(1998)13:2<143::aid-tox5>3.0.co;2-7

✦ Synopsis

The elimination of microcystin-LR MCYST-LR and microcystin-RR MCYST-RR by reverse ( ) osmosis from tap and salt 3000 ppm NaCl water was examined. The average retention rates for the microcystins of three different membrane types were determined by measuring the MCYST-LR and MCYST-RR concentrations in both the permeate and the retentate. The effectiveness of the reverse osmosis apparatus was assured by conductivity measurements. Using high performance liquid chromatography analysis the detection limit for both MCYST-LR and MCYST-RR was 0.2 g / L and the quantification limits were 0.9 and 0.8 g / L for MCYST-LR and MCYST-RR, respectively.

Under the experimental conditions applied, the average retention rates for MCYST-LR and MCYST-RR in tap water were in the range of 96.7% to 99.9% and in salt water between 98.5 and 99.9%. There was no significant difference between salt and tap water for either compound.