1) SeptiTech designs and manufactures denitrification wastewater treatment systems for residential and commercial use that have been in operation since 1996. 2) Their systems use a biological recirculating trickling filter process without added chemicals and are approved for use in 20 states. 3) Over 2500 SeptiTech systems are operating nationwide with up to 85% removal of nitrogen and 98% removal of BOD and TSS.

1. Denitrification Units
SeptiTech Wastewater
Treatment Systems
Residential & Commercial

2. Our History
• Systems in
operation since
1996
Longevity
• Over 2500
systems
operating
nationwide
20 State
Approvals
• ETV, 2002
• NSF 40 & 245, 2008
Certification
• Rigorous ongoing
research &
development - Simple,
smart & more cost
effective treatment
Ongoing
Development

3. SeptiTech
Basics
Biological
Recirculating
Trickling Filter
No Chemicals
Added
Control Panel
Monitors
System
Added
Between 2-
Compartment
Tank &
Disposal Field
Aerobic
(Pulls Air In)
Self Cleaning
Residential &
Commercial
Processors
Installed Below
Grade

4. SeptiTech Trickling Filter
 Simple and Reliable Process
 Treats High Organic Loads
 Efficient in Removing Ammonia
 Handles and Recovers from Shock Loads
 Relatively Low Power Requirements
 Less Sludge than Suspended Growth Systems
 Moderate Operator Skill Level
 Low Operating Cost

5.  Equalization and Clarification All in One Tank
 Operating Flexibility and Control
 All Below Grade Components
 No Onsite Concrete Work Required
 Very Small Footprint — 90,000GD ~ 1/3 Acre
 No Fulltime Operator Needed
 No Operations Building Required
 Integrates with Other Technologies
SeptiTech Technology

6. SeptiTech Advantages
Third Party Verifications
ETV, NSF 40 & 245
Best treatment numbers including
Denitrifiction
98%+ Removal of BOD/TSS
Up to 85% Removal of Nitrogen

7. Recirculation Pump is dual purpose – sprays
wastewater over treatment media & draws
outside air in through use of Venturis
Return Pump sends dead bacteria flock back
to head of primary septic tank & recycles
Nitrified wastewater to anoxic zone
Discharge Pump discharges treated
wastewater to disposal field(s) up to 24
times a day
Control Panel monitors all activity in system
& sends alarm conditions for any problems
SeptiTech System Operation
Control Panel
Recirculation
Return
Discharge

8. SeptiTech Installation
Control
Panel
Air Intake
2 Compartment
Primary Tank
SeptiTech
Treatment
Processor
Disposal Field

9. Primary Septic Tank
SeptiTech Processor
4” Inlet
1-1/2” Return
4” Inlet 2” Discharge
2/3 1/3
Effluent
Filter
2”Air
1”Elec
Residential System Overview
SeptiTech Processor
Polystyrene Bead
Treatment Media
Self Cleaning
Processor
Primary Septic Tank
2 Compartment
Effluent Filter
External Piping
Inlet / Discharge Line
Return Line
Air Intake
Electrical Conduit

10. Residential Treatment Media

11. Residential Processor Schematic
Plastic Tank
"
LB132

12. Residential Processor Schematic
Concrete Tank
"

13. Residential Control Panel
Removable OIT
NEMA 4x
Enclosure
Audible / Visual
Alarm
Hand / Off / Auto
Switches
Built to UL508A
Requirements

14. Residential Processors
Processor Model Bedrooms Tank Capacity
STAAR 0.5 4 1,060 Gallons
STAAR 0.75 6 1,250 Gallons
STAAR 1.0 8 1,500 Gallons

15. SeptiTech Residential System

16. SeptiTech Commercial Layout
2-COMPARTMENT
PRIMARY SEPTIC TANK
SEPTITECH
PROCESSOR
M3000
DISPOSAL FIELDAIR INTAKE

17. Commercial System Overview
Primary Septic Tank
SeptiTech Processor
4” Inlet
2” Return
4” Inlet
2” Discharge
2/3 1/3
Effluent
Filter
2”Air
2”Elec
2”Air
2” Discharge

18. Commercial Processor Schematic
Access Access Access

19. Commercial Processors
Processor Model Flow (GPD) Tank Capacity
STAAR 1.2 1,200 2,000 Gallons
STAAR 1.5 1,500 4,000 Gallons
STAAR 3.0 3,000 6,000 Gallons
STAAR 4.5 4,500 8,000 Gallons
Engineered 100,000 + Modular

20. SeptiTech Commercial System

21. Commercial System Control Panel

22. Multiple Train Modular Layout
10,000 GA
EQUALIZATION
TANK
STAAR 4.5 STAAR 4.5
10,000 GA
EQUALIZATION
TANK
STAAR 4.5 STAAR 4.5
ADJUSTABLE FLOW SPLITTER
From
Collection
System
20,000 GPD TRAIN
 Equal Flow Splitting is Critical

23. Advantages of the SeptiTech System
Easy
Operation
PLC Control
Panel
Minimal
Components
Easy Onsite
Customization
Simple
Maintenance
Self Cleaning
Media
No Extra
Pumping
Mostly Visual
Inspection
SeptiTech
Prevents
Future
Failure
Completely
Subsurface
 H20 Capable
 No Noisy
Blower
 Aesthetically
Pleasing

24. Why Nitrogen
Removal?
Degradation of
Groundwater
Quality
Elevated
Nitrogen
Concentrations
Exceedance of
Drinking Water
Standards
Health &
Environmental
Effects

25. Nitrogen Reducing Aerobic
Treatment Units
Are Effective at Removing 50-75% of Nitrogen from
Wastewater
Systems Must Fully Nitrify the Wastewater before
Denitrification Can Occur
Must Have Anaerobic & Aerobic Conditions
Other Factors that Contribute to Nitrogen Removal
Plenty of Air
Steady pH
Temperature
Toxicity
Long Retention Times

26. Nitrosomonas:
2-Step NH4
+  NO2
-
Process Nitrobacter:
NO2
-  NO3
-
Overall Reaction
NH4
+ + 2O2  NO3
- + 2H+ + H2O
 Requires Oxygen (4.6 lb/lbN)
 Uses up Alkalinity (7.1 lb/lbN)
Nitrifers
Removing Nitrogen Biologically

27. Nitrogen Cycle Simplified
Nitrification — The Conversion of Influent Ammonia to Nitrite & Nitrate
Denitrification — The Conversion of Nitrite to Nitrogen Gas:
Stripping O2 from NO3 to Release N2 (Gas)
“You Must Nitrify Before You Can Denitrify”
PROCESSOR
AEROBIC
OUTSIDE AIR DRAWN IN
SEPTIC TANK
ANOXIC
NITRATE RICH RECYCLE
INFLUENT
AMMONIA
INFLUENT
AMMONIA
NITROGEN GAS

28. Operations & Maintenance
Onsite Visual Inspection of All System Components
Tank, pumps, float switch, control panel, auto-dialer and
audio/visual alarm
Visual inspection of electrical splices and contacts,
check/record amperage and voltage readings
Visual inspection of filter media or filtration device(s)
Exercise all mechanical valves
Sensory examination of treated effluent for clarity, odor, oily
sheen, foaming or any other unusual characteristics
Record flow data (volumetric, cycle counter, etc.)
Maintain bound inspection log with entries for all service
activities, observations, and field test readings with entries
recorded in ink.

29. Operations & Maintenance Cont.

30. SeptiTech Product Advantages
 Subsurface Installation
H20 loading for parking lots
*Competitor’s
Installation
SeptiTech
Installation
SeptiTech
H20 Loading

31. SeptiTech Product Advantages cont.
 Easy to Fine Tune Process
 Self Adjusting & Cleaning
 Low Operating & Maintenance Cost

32. SeptiTech Product Advantages cont.
Modular design flexibility
Systems scale from a 2 bedroom cottage up
to a 100,000
GPD municipal
system

33. SeptiTech Product Advantages cont.
Easy to fine tune process
PLC controls & monitors system, fully
customizable
Collects & stores operating data
Remote communication capabilities

34. Small Town Municipal Sewers
 Vinalhaven Island, ME
 80,000 GPD

35. SeptiTech Commercial Systems
 Old Marsh Golf Club, ME
 40,000GPD

36. SeptiTech Commercial Systems cont.
 Bracket’s Landing, MA
 9,000 GPD

37. Commercial Chains
 Hannaford Markets, NY
 5,000 GPD

38. SeptiTech Summary
Plug & Play
Residential
Systems
Robust
Modular
Commercial
Systems
Simple Install,
Operation &
Maintenance
Nitrogen
Reducing
Systems