1959 Industrial Waste Treatment: Johns Hopkins Science Review

The video discusses the American Cyanamid Company's waste treatment plant, highlighting its processes and environmental impact. Waste is processed through settling lagoons and aeration tanks, where bacteria aid in decomposition. The treated effluent is then chlorinated and discharged into the Raritan River. The plant represents a significant financial investment, emphasizing the necessity for industries to treat waste to protect shared water resources.

What is the primary purpose of the settling lagoon in the waste treatment process?

• To aerate the waste water

• To add bacteria to the waste water

• To allow solid materials to settle

• To chlorinate the waste water

What happens to the waste water in the aeration tanks?

• It is mixed with chemicals

• It is chlorinated

• It is discharged directly into the river

• Air is blown through it and bacteria are added

Why is the waste treatment process considered a significant investment?

• It costs over four and a half million dollars

• It uses rare materials

• It involves complex machinery

• It requires a large amount of land

What is the final step before the effluent is discharged into the Raritan River?

• It is aerated again

• It is heated

• It is filtered

• It is chlorinated

Why must both industries and municipalities treat their waste?

• To reduce costs

• To share the same water resources

• To increase production

• To comply with international laws