ABSTRACT
Chile, the world's leading copper producer, generates significant volumes of mining waters, some of which cannot be recirculated into the production process. These mining waters are characterized by elevated sulfate (SO42-) concentrations, requiring sustainable management strategies for potential reuse. This study aims to evaluate the rhizofiltration technique using Carpobrotus chilensis for treating mining waters with a high SO42- concentration. Initially, the mining waters exhibited a pH of 7.97 ± 0.16 and a SO42- concentration of 2,743 ± 137 mg L-1, while the control water had a pH of 7.88 ± 0.08 and a SO42- concentration of 775 ± 19.0 mg L-1. The plants were hydroponically cultivated in 40 L containers with mining waters and drinking water as a control. Over an 8-week period, the pH of the mining water decreased to 3.12 ± 0.01, and the SO42- concentration declined to 2,200 ± 110 mg L-1. Notably, the fresh weight of roots was significantly higher in plants grown in mining water (22.2 ± 6.66 g) compared to those in the control treatment (14.3 ± 4.28 g). However, an undesirable increase in the acidity was observed in the mining waters after rhizofiltration, which was attributed to hydrogen sulfate (HSO4-) and/or root exudates. Despite the unexpected increase in acidity, C. chilensis effectively reduced the concentration of SO42- in mining waters by 20%. Additionally, the C. chilensis roots accumulated 4.84 ± 1.40% of sulfur (S), a level comparable to thiophore plants. This study provides evidence that this non-aquatic plant can be used in sulfate rhizofiltration.
Caprobrotus chilensis is a good candidate for sulfate rhizolfiltration in mining waters.The accumulation of sulfur by the roots of Carpobrotus chilensis reached 4.84%Mining waters with a high concentration of sulfates require control of the redox potential.
Subject(s)
Biodegradation, Environmental , Mining , Sulfates , Water Pollutants, Chemical , Sulfates/metabolism , Water Pollutants, Chemical/metabolism , Filtration , Water Purification/methodsSubject(s)
Acute Kidney Injury/chemically induced , Gemfibrozil/adverse effects , Hydroxymethylglutaryl-CoA Reductase Inhibitors/adverse effects , Hypolipidemic Agents/adverse effects , Pyridines/adverse effects , Rhabdomyolysis/chemically induced , Acute Kidney Injury/complications , Aged , Drug Interactions , Humans , Male , Rhabdomyolysis/complicationsABSTRACT
We describe a case of acute myocarditis subsequent to varicella virus infection. We comment on the rarity of the clinical entity together with the nonspecificity of the routine diagnostic technique (EKG, X-ray, echocardiography study, routine laboratory, etc.) linked with the excellent gain of antibodies cardiac gammagraphy joined with viral serology, after the primary suspicion factor prior to the presence of skin lesions, fever and thoracic pain.
Subject(s)
Chickenpox/complications , Herpesvirus 3, Human , Myocarditis/etiology , Acute Disease , Adult , Chickenpox/diagnosis , Echocardiography , Electrocardiography , Follow-Up Studies , Humans , Male , Myocarditis/diagnosis , Myocarditis/diagnostic imaging , Radionuclide Imaging , Time FactorsABSTRACT
Malignancies other than lymphoma can in rare instances induce the development of chylothorax. A patient with this unusual type of pleural effusion is described herein. The need to rule out a gastric neoplasm when confronted with a case of chylothorax with no obvious cause is stressed.
