TMA Anglosajon1

Water with a high concentration of dissolved ions will be very well purified by filtration through activated carbon. T. F.

The BOD values ​​will be higher than the COD values. T. F.

If water has a BOD = 60 mg O2/L, it means it has 60 ppm of dissolved O2. T. F.

The phosphates contained in urban wastewater would be reduced in tertiary treatment. T. F.

Secondary treatment with biological filters is primarily used to achieve a reduction in non-biodegradable organic matter in water. T. F.

Equal concentrations of different atmospheric pollutants cause identical environmental effects. T. F.

The danger of pesticides present in gaseous effluents to humans depends, among other factors, on their size. T. F.

It is important that a certain amount of ozone exists in the atmosphere, whether in the troposphere or the stratosphere. T. F.

Immission and emission concentrations are always equal. T. F.

The effectiveness of an absorbent for contaminant removal depends on the nature of the gas absorbent system, but the porosity and surface area of ​​the absorbent are also very important. T. F.

If water has a high concentration of ions, it will be very well purified by filtration through activated carbon. T. F.

The content of organochlorine pesticides and other poorly biodegradable organic compounds in liquid effluents contributes to the BOD value, but not to the COD value. T. F.

Discharging hot water into a river has no environmental effect. T. F.

Nitrification produces NO2- and NO3- from NH4+. Denitrification is the reverse reaction. T. F.

Waters described as natural only contain H2O in their composition. Therefore, they can be used as drinking water. T. F.

The GAC process is an anaerobic treatment method for removing organic matter. T. F.

In a purification process by absorption, increasing the total pressure of the system decreases the amount of retained pollutant gas. T. F.

NOx emissions can be completely reduced if we use pure O2 as an oxidant. T. F.

It is important that a certain amount of ozone exists in the atmosphere, whether in the troposphere or the stratosphere. T. F.

The danger of particles to humans depends solely on their size. T. F.