Total composition of wastewater of Ganja (Azerbaijan)

The results of a study of the mechanical composition of wastewater in the city of Ganja (Azerbaijan) are presented. It has been established that wastewater mixtures, regardless of origin, are divided into four groups according to particle size: the first group of mixtures includes organic and inorganic microorganisms, bacteria and helminth eggs. The second group of dispersed particles are colloidal substances with a size of at least 10-6 cm. The third group includes mixtures with a particle size of 10-7 cm, having a degree of molecular dispersion. Mixtures of the fourth group have a particle size of less than 10-8 cm, which corresponds to the ionic degree of dispersion. Wastewater pollution by its nature is divided into organic, mineral and biological. The concentrations (mg/l) of pollutants in the general wastewater of the city of Ganja were determined and the use of water treatment facilities was recommended.