Purification of Polluted Waters

Numerical Optimization for the Purification of Polluted Shallow Waters

The optimal control theory allows us to design a wastewater treatment system in order to control marine pollution in any open area of shallow waters (see, for instance, the previous works of the authors [1-3]). However, there exist many closed areas (for instance, enclosed bays) which present a serious quality problem caused by domestic and/or industrial contaminants, due to the insufficient se...

Microbial Hazards Of Diving In Polluted Waters

Microbial Diversity in Heavy-metal Polluted Waters

Indigenious water microflora as well as the presence of metaland xenobiotic biotransforming bacteria were investigated in waters near the KCM Pb-Zn smelter, South Bulgaria. Content of As, Hg, Cd, Mn, Pb, Cu and Zn exceeded in times the maximum permission standart. Absence of some microbial groups demonstrated a change in the microbial community structure in the region. Ecotoxicology test ISO/DI...

Removal of Phosphates from Polluted Waters Using Bio-adsosrbents

Increasing interest is being envisaged by environmental researchers in controlling the phosphates pollution in natural waters by evoking the surface sorption characteristics of bio-waste materials of flora origin. In the present work, a thorough investigation has been made to find powders of leaves or their ashes of different classes of plants, having the affinity towards phosphate ions. 10 pla...

Aeromonas primary wound infection of a diver in polluted waters.

Two separate species of Aeromonas, A. sobria (not listed as a species in Bergey's Manual of Determinative Bacteriology, 8th ed.) and A. hydrophila, were primary pathogens isolated from the leg wound of a diver conducting operations in polluted waters. This is the first recorded instance of a primary infection of soft tissue in a human caused by two species of Aeromonas, one of which was resista...