Lecture 9-10 Air Pollution Control

Front

3 options to air pollution problems

Back

Improve Dispersion

Reduce Emissions by Process Change, Pollution Prevention

Use a Downstream Pollution Control Device

Front

Three options to improve dispersion (dilution)

Back

Tall stacks

Intermittent control schemes

Relocate the plant

Front

Hydrocarbon solvents in paints.

Back

Hydrocarbon solvents, such as paint thinners, contribute to emissions problems.

Front

Substitution of paint types.

Back

Substituting water-based paints for oil-based paints can greatly reduce hydrocarbon emissions.

Front

Reduce emissions by changing processes and preventing pollution.

Back

Some copper smelters have replaced reverberatory furnaces with processes that produce lower-volume, higher-concentration SO₂ waste gases.

Front

Alternative smelting processes.

Back

Other smelting processes produce lower-volume, higher-concentration SO₂ waste gases.