Wastewater presents challenges due to its high biological oxygen demand and harmful bacteria, necessitating effective management solutions. Possible solutions include municipal sewer plants, septic systems, and decentralized sewer systems, with decentralized options offering benefits like environmental protection and public health assurance. Proper design and maintenance are crucial for decentralized systems to sustainably benefit communities economically and socially.

1. The Problem with Wastewater
•It sucks
We measure its biological oxygen demand
(BOD) in milligrams per liter.
oxygen

2. The Problem with Wastewater
•It’s got too much of a good thing.
The nutrients, nitrogen and phosphorus,
stimulate aquatic plant overgrowth.

3. The Problem with Wastewater
•It makes me (and you) sick.
Wastewater contains E. Coli and enterococci
among other baddies.

4. Three Possible Solutions
Municipal Sewer Plants
• They’re big.
• They’re expensive.
• They’re antiquated.
• They’re complicated.
• They’re limited.
Too Far
Too Far
Connection REFUSED

5. Three Possible Solutions
Septic Systems
• They discharge high BOD into
the land.
• They require a lot of space
contributing to urban sprawl.
• They fail over time.
• They can pollute groundwater.

6. Three Possible Solutions
Decentralized Sewer
• Using energy and land wisely
• Responding to growth while
preserving green space
• Safe in protecting the
environment, public health, and
water quality
• Protecting the community’s
health
-The EPA Decentralized Wastewater Memorandum of
Understanding

7. Decentralized Sewer by Aqua Tech
Primary
Treatment Secondary
Treatment
Tertiary
Treatment/Dispos
al
Wastewater Treatment
Offered in Two Optional Configurations

8. The BioTank Option
20,000 gallon settling tank 20,000 gallon combination tank 5,000 gallon EQ or Pump Tank
via Precast Concrete Tanks

9. The BioTank Option
MBBR+SAF Treatment
Technology
Case made of AISI 304
Stainless Steel
Multi-Chambered
reactor
Above Ground
In Ground

10. The Wastewater Station
Mechanical
Integrated

11. Decentralized Sewer by Aqua Tech
Two Paths
for
#1 Subsurface Drip
Irrigation
#2 Surface Water
Discharge

12. Two Paths for
#1 Subsurface Drip
Irrigation
Shallow-buried
flexible tubing at
the root line
Slow rate, timed dosing
Up to 80% water uptake by evapotranspiration
Nutrients are used by the grass crop.
Easy Installation

13. Two Paths for
#2 Surface Water
Discharge

14. Decentralized Sewer by Aqua Tech
Primary
Treatment Secondary
Treatment
Tertiary
Treatment/Dispos
al
Wastewater Treatment
Advanced

15. by Aqua Tech
Advanced

16. Decentralized Sewer by Aqua Tech
Primary
Treatment Secondary
Treatment
Tertiary
Treatment/Dispos
al
Wastewater Treatment
Advanced
STEP Collection
Alternative Sewer &

17. by Aqua Tech
The STEP System

18. by Aqua Tech
The STEP Network

19. by Aqua Tech
Low Pressure Sewer

20. Decentralized Sewer
Bottom Line:
“Decentralized wastewater treatment can be
a sensible solution for communities of any
size and demographic. Like any other
system, decentralized systems must be
properly designed, maintained, and
operated to provide optimum benefits.
Where they are determined to be a good fit,
decentralized systems help communities
reach the triple bottom line of sustainability:
good for the environment, good for the
economy, and good for the people.”
-EPA Decentralized Wastewater
Memorandum of Understanding.

21. How It’s Done
1. An engineer interfaces with
the state environmental
office to determine the
design criteria which they
give to Aqua Tech.
2. Aqua Tech De