download - Europe Direct Iasi

2003 a, b, c; 2006; 2007; 2008; 2009]; gas bubbles break, the air bubblingprocesses or other inert gas through saturated salt solutions [Joutsensaari etal., 2001]; atomization of saturated salt solutions with vacuum cyclones,followed by physical dispersion with a stream of air [Katusik et al., 2000,Merchat,1994];Superficial particle entrainment resulting from consecutiveanhydration solvolisys and surface structures, following the circulation ofair through holes and grooves charged in blocks of rock salt or rectangularblocks, arranged in the form of fences, walls halochamber [Albiach, 1995;Belkin, 2005; Konovalov, 1993; Sandu et al., 2009 a, b, c, d, e, f].Solions general characteristics of aerosols are determined by thesource, but environmental factors. Among the functional characteristics thatdescribe a source of solion are met:- aerosol size and density;- velocity of particle formation;- flow source;- gaseous environment enrichment factor;- lifetime of aerosol particles;NaCl solions composition can change due to interaction withatmospheric humidity and other atmospheric particles and gases,coagulation processes taking place, peptization, condensation andsedimentation. Light radiation can also influence the composition andmicrostructures of particle physics for systems co-assiting with other saltssuch as potassium chloride, calcium or magnesium and sodium orpotassium iodide.The characterization solions is with three variables, number, volumeand total surface of particles are involved and other parameters such as:a) concentration and its variation solions while under the influence ofcoagulation processes, peptizare, condensation or settling etc.b) the size distribution of solions;c) the degree of surface electrostatic charge (solion measured thedistance between the liquid dispersed systems);d) the degree of hydration;e) the dynamic behavior of solions, diffusion, drift mobility and theirspeed;f) environmental humidity limit at which the formation ofcondensation nuclei.Solions concentration the number of particles per unit volume.Usually, numerical concentration of all aerosol particles is equivalent to thenumber of Aitken particles per unit volume, as the number of medium andlarge particles is insignificant in comparison with Aitken. Measuring the236