Septic tanks and sewage treatment plants - what's the difference?

What Is The Difference Between a Cesspool, Septic Tank and a Sewage Treatment Plant

Why Install a Sewage Treatment Tank vs. a Septic Tank?

Septic tank vs. Sewage treatment plant: A battle of the wastewater systems

Septic Tanks & Sewage Plants - What's The Difference?

Do I need a Septic Tank or Sewage Treatment Plant?

What is the difference between a traditional septic system and an Ozzi Kleen Home Sewerage Treatment Plant (HSTP)?

Septic Tanks Vs Sewage Treatment Plants

Septic Tanks & Sewage Plants - What's The Difference?

What's the difference between septic tanks and private treatment plants?