Global Waste Problem 1

Question 1

Define waste.

Answer 1

Something which is not at the right place at the right time.

Question 2

Describe IPC.

Answer 2

• Integrated pollution control
• Holistic approach
• Ensures that substances unavoidably released to environment are put wherever will cause least damage.

Question 3

Describe the conventional sewage treatment plan.

Answer 3

• Primary - physical
• Secondary - biological
• Tertiary - chemical
• Sludge treatment - anaerobic digestion at 35 or 55C.