Comparative physicochemical analysis of galvanic sludge wastes.

The paper provides the physicochemical analysis of galvanic sludge to determine the presence and concentration of toxic metals. Two sludges sampled from the same factory, but from different technological processes, alkaline galvanic sludge obtained from galvanizing process and acidic sludge generated from the chromium plating process were analyzed. Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES) revealed increased concentrations of toxic heavy metal ions Zn, Cr, Ni and Pb in the sludge from the galvanizing process and Cr, Cu, Ni, Pb, Cd and Zn from the chroming process.

Monitoring the toxic effects of Pb, Cd and Cu on hematological parameters of Wistar rats and potential protective role of lipoic acid and glutathione.

Heavy metal pollution is a serious environmental and health problem. The negative effects of heavy metals that can enter human body can be reduced by the addition of some supplements. In this study, the effects of lead (Pb), cadmium (Cd) and copper (Cu) on the hematological parameters in Wistar rats in the absence and presence of lipoic acid and glutathione were analyzed.

The release of zinc, copper, lead, and cadmium from the mineral tissue of teeth under the influence of soft drinks and sour-tasting food.

This study was carried out with the aim of identifying the effects of consuming sour-tasting food and refreshing drinks on the bone tissue of teeth among teenagers. The cumulative effect of a year-long exposure of teeth to the erosive effects of a model system of acidic media (citric acid, lactic acid, acetic acid, apple vinegar, lemonade, the soft drink Sprite, mineral water) was studied. The effects were registered based on the amount of released biometal ions, of zinc and copper, and toxic lead, during a period of 24 hr at room temperature, using the potentiometric stripping analysis.