Types and Characteristics of Industrial Waste

What is the classification of waste based on physical state or phase, except...

• Solid

• Liquid

• Gas

• Hazardous and Toxic (B3)

What is meant by Liquid Waste?

• Industrial sources such as Petrochemical, dairy, food, pharmaceutical, metallurgical, etc.

• Domestic sources such as households and non-industrial businesses

• Domestic liquid waste from one community to another within a country usually varies slightly

Why do we need to process Liquid Waste?

• To protect health

• To protect the environment

• To reuse water

What are the goals of wastewater treatment?

• Reuse of treated wastewater

• Compliance with regulations

• Zero emission

• Reduce hazardous waste

What is the main purpose of wastewater treatment plants?

• To remove organic substances

• To recycle water

• To increase pollution

• To generate energy

What factors affect the dissolved oxygen (DO) levels in water?

• Air pressure

• Temperature

• Salinity

• All of the above

What is the significance of pH in water treatment?

• It affects the solubility of gases

• It determines the hardness of water

• It indicates the presence of organic matter

• It has no significance

What are the main ions found in water?

• Na+, K+, Ca2+, Mg2+, Cl-, HCO3-, SO42-

• O2, CO2, N2

• H+, OH-

• None of the above

What is the concentration of suspended solids (SS) in river water during floods?

• 0 - 10 mg/L

• 5000 mg/L

• 10000 - 50000 mg/L

• 1 mg/L

What contributes to the color of surface water and groundwater?

• Organic compounds, especially humic substances

• Inorganic compounds

• Suspended particles

• All of the above