METHOD OF IDENTIFYING AND CLASSIFYING POLLUTION OF FRESHWATER ENVIRONMENT AND APPARATUS FOR REALISING SAID METHOD Russian patent published in 2012 - IPC G01N27/06 G01R27/26 

FIELD: physics.

SUBSTANCE: method of identifying and classifying pollution of a freshwater environment involves measuring temperature, classifying contaminants into groups based on analysis of a combination of measured factors, collecting samples for further laboratory analysis, sending information on the investigated facility obtained from several points to a single receiving system. Components σ_x of the complex permittivity of the medium are measured. Pollution of the freshwater environment is determined based on deviation of values reduced to temperature T₀ for σ≈σ_fon from background σ_fon. Contaminants of the freshwater environment are classified using the following relationships: σ>σ_fon - electrolytes, for σ≈σ_fon - non-polar and weakly polar organic compounds, for σ≈σ_fon - polar organic compounds, frequency dispersion ε', σ - suspensions, films, colloids. Standard temperature dielectric characteristics of the investigated freshwater environment ε'(T₀) and σ(T) are plotted. By averaging the values of ε'(T₀) and σ(T₀) reduced to temperature T₀ over a time interval Δt greater than a single measurement Δt₀ the background characteristics σ_fon are determined. Background characteristics σ_fon are used as the temperature T₀. The average annual temperature of the investigated freshwater environment is used as the temperature T₀, and the time interval Δt is defined as (10⁴…10⁸)·Δt₀. Apparatus for identifying and classifying pollution of a freshwater environment is disclosed to realise the disclosed method.

EFFECT: high information content of identifying pollution of a freshwater environment owing to classification of types of organic substances, as well as high reliability and cost-effectiveness of the corresponding apparatus by replacing several sensors for the investigated characteristics of the freshwater environment.

4 cl, 5 dwg, 2 ex