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Enhanced ultrafiltration by the addition of polymers soluble in water is a promising technique for the recuperation of heavy metals in wastewater streams. In this work an analysis is made of the influence of the molecular weight (inferior and superior to the molecular weight of the polymer) cut-off of the membrane and the quantity of the polymer on the permeate flux and the recovery of mercury. The...
The European Union (EU) stipulates the maximum admissible value for the concentration of boron at 1 ppm and the World Health Organization (WHO) at 0.3 ppm as the non-observed effect level (NOEL) for drinking water. The content of boron in water can be reduced by means of various processes. Treatment by means of conventional reverse osmosis only reduces the boron content by 60%. This paper analyzes...
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