> The property of water due to the presence of soluble calcium and magnesium salts in it is:

• rigidity

• the total salinity

• oxidizability

•  non-isothermal

• acidity

The coalescence of particles of a colloidal system in a collision in the process of thermal motion is called:

• flotation

•  non-isothermal

• coagulation

• aeration

• regeneration

   

What is the name of the process in which the catalyst is used to slow down the reaction

• heterogeneous catalysis

•  non-isothermal

• negative catalysis

• homogeneous catalysis

• positive catalysis

   

The transfer of reacted substances to their original state for reuse is called:

• regeneration

• the integrated use of

• enrichment

• aeration

   

For cleaning of suspended particles with a diameter of more than 1 mm, use:

• coagulation method

• defending

• non-isothermal

• aeration

   

The technological parameter is

• transfer of the reacted substances to their original state for reuse

• the process of restoring the activity of the catalyst

• the value that characterizes the device or its mode of operation

• reactions in which several transformations occur with the same starting substances to form different products

When cleaning from oil-containing products, use:

•  non-isothermal

• oil traps

• Filters

• septic tanks

What is the name of the process of restoring the activity of the catalyst:

• cracking

• filtering

• regeneration

• degassing

Filtering refers to:

• to the biochemical methods of purification

•  non-isothermal

• chemical cleaning methods

• to mechanical cleaning methods

• physical and chemical methods of purification

Flotation is:

• the process of separating fine contaminants from water with dispersed air bubbles

• the process of extracting dissolved organic substances from wastewater using a specially selected solvent