CONTRIBUŢII ASUPRA PROCESULUI DE CLORAMINARE APLICAT LA TRATAREA APELOR NATURALE Teză susţinută pentru obţinerea titlului de doctor în domeniul de doctorat Inginerie Chimică.  Autor: Corneliu Bogatu, Data susţinerii: 30.04.2010, Conducător ştiinţific: Prof. Dr. Ing. Aurel IOVI, Referenţi ştiinţifici: Prof. Dr. Ing. Adrian Chiriac, Universitatea de Vest, Timisoara, C. S. I Dr. Ing. Cecilia SAVII, Institutul de Chimie al Academiei

Paper objectives were to determine conditions for monochloramine formation in water solutions, its stability against time at pH= 6, 7, and 8, for two series of chlorine : ammonia mass ratios (R), 1:1-8:1 and 2 :2-12:2 (mg/L:mg/L), at 200 C. Maximum monochloramine concentrations were recorded for the ratios 3:1 and 4.18:1 in the first minutes after reagents mixing: 1.8-2.3 mg/L (pH = 6.0), 2.4-3.0 mg/L (pH = 7.0), 2.7-3.7 mg/L (pH = 8.0). For the

Bulletin of Environmental Contamination and Toxicology December 2015, Volume 95, Issue 6, pp 752–757 The effects of alpha-iron oxide (α-Fe2O3) and gamma-iron oxide (γ-Fe2O3) nanoparticles (NPs) on marine microalgae species (Nannochloropsis sp. and Isochrysis sp.) were investigated in this study. Both Fe2O3 NPs covered the surface of algae with the agglomerates of the nanoparticles. This form of physical NP toxicity significantly decreased the

. Environ Toxicol. 2015 Jan; 30 (1): 109–118. In this study, Artemia salina (crustacean filter feeders) larvae were used as a test model to investigate the toxicity of aluminum oxide nanoparticles (Al2O3 NPs) on marine microorganisms. The uptake, toxicity, and elimination of  alpha-Al2O3 (50 nm and 3.5 μm) and gamma-Al2O3 (5 nm and 0.4 μm) NPs were studied. Twenty-four and ninety-six hour exposures of different concentrations of Al2O3 NPs to