||'Demag' Process. A Process for Removal of Toxic Metal Ions from Water or Wastewater.
Fin, Robert K. ;
||Cornell Univ., Ithaca, N.Y. Water Resources and Marine Sciences Center.
||DI-14-31-0001-3532; OWRR-A-039-NY; A-039-NY(1);
( Mercury ;
( Water pollution ;
( Yeasts ;
Water pollution control
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
Mercury uptake by yeast cells depleted in iron and magnesium has been studied with a view to developing a biosorption process for removal of mercury. Enhanced uptake of mercuric ions was observed, but the results were not as dramatic as the 15-fold increase in uptake believed possible from related work in the literature. Yeast does adsorb mercury up to 1% of the dry cell weight. A most unusual finding is that the mercury content of the cells increased as the mercury content of the contacting solution was lowered from 20 ppm to 1 ppm. The fact that only a part of the mercury was reversibly bound suggests that more than one binding mechanism is operating. (Author)