Potts Soil Air - MOWA

Rejuvenation Case Studies
MOWA
January 31, 2011
© 2011 not to be reproduced or published in any form without express permission from Geomatrix, LLC
Classic Biomat Build-up
•Before you can solve any problem you need to know what it is
•Beware of the difference between symptoms and root causes
1

SoilAir Technology
• Blower creates pressure
gradient in the leach field &
surrounding soil
• Doesn’t jeopardize the
performance of septic tank
• Displaces respiration gases
and soil pore water, replaces
them with air
• Enhanced treatment of
wastewater constituents
• Over 2,000 systems, since
1996
U.S. Patent #s 6,485,647, 6,726,401, 6,814,866 ,6,887,383, 6,923,905, 6,959,882, 6,969,464, 7,157,011, 7,309,434, 7,351,005.
Canadian Patent # 2,361,723 Other patents pending. SoilAir is a trademark of Geomatrix, LLC © 2010
Typical septic system with SoilAir
HOUSE
SEPTIC
TANK
NOT TO SCALE
AIR IN
SOILAIR SYSTEM
LEACHING SYSTEM
SEPTIC TANK EFFLUENT
AND AIR TO LEACHFIELD
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Septic tank assembly
SoilAir System
In septic tank assembly detail
-Not to Scale-
FROM BUILDING
BUILDING
BUILDING
CONTROL
PANEL
SEPTIC TANK
SEPTIC
TANK
SOILAIR
EQUIPMENT
FROM SEPTIC TANK
SEPTIC
TANK
SEALED
D-BOX
CONDUIT
AIR LINE
CONDUIT TO
CONTROL PANEL
PUMP FLOAT
SOILAIR FLOAT
HIGH LEVEL
ALARM
LEACH FIELD
Pump station assembly
SoilAir System
with demand dosed pump station
-Not to Scale-
CONTROL
PANEL
SOILAIR
EQUIPMENT
PUMP
STATION
CHECK
VALVE
PUMP STATION
D-BOX
MANHOLE COVER TO GRADE
TO LEACH FIELD
AIR LINE TO
SOILAIR EQUIPMENT
CHECK VALVE
LEVEL SENSOR TO
SOILAIR CONTROLLER
(with or without filter)
LIFT-OUT ADAPTER
CHECK VALVE
PUMP
Copyright 2006 GEOMATRIX, LLC
Manufactured under one or more of the following
patents: 6,6485,647, 6,726,401, 6,814,866,
6,887,383, 6,923,905, 6,959,882, 6,969,484
SoilAir System
in septic tank assembly detail
GEOMATRIX, LLC
Killingworth, CT
ִ
MANHOLE COVER TO GRADE
PVC DISCHARGE
TO LEACH FIELD
SNAP ON DIFFUSER
WEEP HOLE
ִ
Copyright 2006 GEOMATRIX, LLC
Manufactured under one or more of the following
patents: 6,485,647, 6,726,401, 6,814,866,
6,887,383, 6,93,905, 6,959,882, 6,969,484
SoilAir System
with demand dosed pump station
GEOMATRIX, LLC
Killingworth, CT
3

System features & options
• Remote monitoring & control
• Data logging
• Static pressure/hydraulic capacity
• Track wastewater flows - gravity or pump
• Dosing with gravity systems
• Enhances removal in septic & grease tanks
• Enhanced treatment …SBR; leach field is reactor
• 80% less energy than traditional aerobic system
Residential Installations
4

Commercial Installations
System Installation
5

System Installation
Pump out tank and D-box
System Installation
Install fittings necessary for air line
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System Installation
Install fittings necessary for air line
System Installation
Air check valve must be level and plumb
Face Tee up to prevent water
from entering for air line
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System Installation
Install air line of specified size for length run
System Installation
Place vapor barrier
under blower enclosure
8

System Installation
Seal D-box
System Installation
Install junction box and float switch
9

System Installation
Run conduit to blower enclosure
System Installation
Pull wire of appropriate
size for run
10

System Installation
Level switch & check valve access cover
System Installation
Air line & float switch conduit
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System Installation
Case Studies
• Municipal
• Commercial
• Residential
Ready for backfill
12

Municipal Application:
Chester, CT
Constructed in the early 80’s,
system serviced downtown
area and was problematic for
20 years
Municipal Application:
Chester, CT
Collection system discharges to grinder pump,
handling 9,000 - 15,000 gpd
13

Municipal Application:
Chester, CT
24,000 gallon septic tank capacity - Grease traps on restaurants
Municipal Application:
Chester, CT
Chester leach field
Approximately 1300 linear
feet of 4x4’ galleries
Effluent surfacing
intermittently, excessive
pumping & impact to
groundwater
4 x 4 Concrete Galleries
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Municipal Application:
Chester, CT
SoilAir Blower
Municipal Application:
Chester, CT
15

Municipal Application:
Chester, CT
Municipal Application:
Chester, CT
16

Municipal Application:
Chester, CT
Brook adjacent to SSDS
Municipal Application:
Chester, CT
Before SoilAir – Iron Seep 1 Year After SoilAir – No Iron Seep
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Municipal Application:
Chester, CT
Gallons per Day
16,000
14,000
12,000
10,000
8,000
6,000
4,000
2,000
0
1989
1990
1991
1992
1993
1994
1995
1996
Chester SSDS
Annual Average Flows
1997
1998
Year
Municipal Application:
Chester, CT
Concentration: % by
vol.
25
20
15
10
5
0
1999
2000
2001
2002
Chester SSDS
Effects on soil gas levels at MW 103
0 0.5 1 6 24
Hours
Oxygen Carbon Dioxide Methane
2003
2004
2005
2006
20,000
15,000
10,000
5,000
0
Concentration: ppmv
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Municipal Application:
Chester, CT
Chester SSDS MW 102
Groundwater data collected
quarterly since 1984
Municipal Application:
Chester, CT
Concentration
(mg/l)
50
40
30
20
10
0
6/15/1994
10/28/1995
3/11/1997
7/24/1998
Chester SSDS
Down Gradient Well #101
10 year interval before SoilAir
12/6/1999
4/19/2001
Time
9/1/2002
1/14/2004
5/28/2005
10/10/2006
Ammonia
Nitrate
Total Nitrogen
Linear (Total Nitrogen)
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Municipal Application:
Chester, CT
Concentration
(mg/l)
50
40
30
20
10
0
6/15/1994
10/28/1995
3/11/1997
7/24/1998
Chester SSDS
Down Gradient Well #101
12/6/1999
4/19/2001
Time
9/1/2002
1/14/2004
Municipal Application:
Chester, CT
5/28/2005
SoilAir System
10/10/2006
Ammonia
Nitrate
Total Nitrogen
Linear (Total Nitrogen)
With SoilAir 2/3 of leach field dried out and 100% of flow was handled by 1/3 of
original leaching system
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Commercial Application:
Restaurant in Westbrook, CT
• Continually experiencing
septic system problems
• Used 525 - 5,000 gpd
• System last repaired in
1990
• Grease traps, septic
tanks, concrete galleys
• Effluent surfacing from
septic tanks; excessive
pumping
% Oxygen
25.00
20.00
15.00
10.00
5.00
0.00
0.00
0 20 40 60 80 100 120 140
Elapsed Time (days)
SoilAir system
installed
March 8, 2002
Effects on O 2,CO 2 and CH 4
5.00
4.00
3.00
2.00
1.00
% Carbon Dioxide
O2 (% by vol.)
* CO2 maximum detection limit = 5%
3500.0
3000.0
2500.0
2000.0
1500.0
1000.0
500.0
0.0
0 20 40 60 80 100 120 140
ppmv Methane
Elapsed Time (days)
CO2 (% by vol.*)
CH4 (ppmv)
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Hydraulic Effect
Waste Water Depth
(inches)
35.00
30.00
25.00
20.00
15.00
10.00
5.00
0.00
Waste Water Depth at Inspection Port 2
0 4 5 6 10 12 14 17 20 24 27 31 34 39 45
Oxidation Effect
Grade = 35"
Top of Gallery = 14"
Elapsed Time (days)
After two months of aeration, Gallery #2 is largely dry.
The extent of aerobic conditions is readily evident.
IP-2
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Commercial Application:
Healthcare Facility – Old Saybrook, CT
• Continually experiencing
septic system problems
• Effluent surfacing over
leach field; excessive
pumping
• Uses 3,000 - 13,000 gpd
• Septic tanks, grease trap,
pump chamber, concrete
galleys
• System last repaired in
2003; SoilAir installed in
2009
Commercial Application:
Healthcare Facility – Old Saybrook, CT
• Now operating on 25% of
leaching system.
• No longer hydraulically
challenged.
23

Commercial Application:
Motel – Old Saybrook, CT
• Gradually experiencing
septic system problems
• Effluent surfacing over
leach field; excessive
pumping
• Uses 1,000 - 5,000 gpd
• Septic tanks, pump
chamber, concrete
galleys
• System last repaired in
1988; SoilAir in 2009
Commercial Application:
Motel – Old Saybrook, CT
• No longer hydraulically
challenged.
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Residential Application:
Essex, CT
• Three bedroom residence
built in 1963.
• Failure mode: effluent
surfacing over leach field.
• Water usage ranges from
244 to 616 gpd, and
averages 349 gpd.
• Septic system consists of a
750-gallon septic tank and
a 54-foot long double row
of plastic chambers.
• Current septic system
installed in 1993; SoilAir in
2001.
Residential Application:
Essex, CT
Depth to Water (inches)
0
5
10
15
20
25
Elapsed Time (Days)
0 200 400 600 800 1000 1200 1400 1600
S ta rte d S o ilAir Sys tem
Turned So ilAir Sys te m o ff
S ys tem fa ile d
Turne d S o ilAir Sys te m
o n & a dde d co ver
m ateria l
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Residential Application:
Essex, CT
Ponding Depth (feet)
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
8/6/2008
Inside chamber
4 years later
8/20/2008
9/3/2008
9/17/2008
10/1/2008
10/15/2008
BARNSTABLE COUNTY
DEPARTMENT OF HEALTH AND THE ENVIRONMENT
SUPERIOR COURTHOUSE
POST OFFICE BOX 427
BARNSTABLE, MASSACHUSETTS 02630
Ponding levels for the operation of the Soil Air system at the Second District Courthouse
10/29/2008
11/12/2008
11/26/2008
12/10/2008
12/24/2008
1/7/2009
1/21/2009
Poinding
Flow
Flow avg.
2/4/2009
2/18/2009
3/4/2009
3/18/2009
4/1/2009
4/15/2009
4/29/2009
5/13/2009
5/27/2009
6/10/2009
6/24/2009
7/8/2009
7/22/2009
8/5/2009
8/19/2009
9/2/2009
9/16/2009
9/30/2009
10/14/2009
10/28/2009
2000
1900
1800
1700
1600
1500
1400
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
Flow Gal/day
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Putnam Lake Market
SoilAir System Data
Gallons
1200
1000
800
600
400
200
P utnam L ake Market
0
1/1/2010 2/1/2010 3/1/2010 4/1/2010 5/1/2010
Date
SoilAir Conclusions:
• Breakdown & prevention of organic
accumulations
• Increased hydraulic capacity
30
25
20
15
10
5
0
# of Dos es & B ack
pres s ure IWC
G P D
Dos es
• Enhanced removal for nutrients, fecal coliform,
TSS and BOD 5
• Low operating costs – energy and maintenance
• Simple technology; similar to composting toilets,
but composting takes place in leach field
• Leaching systems are only missing OXYGEN
Max
© Geomatrix, LLC 2010
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Thank You & Questions?
www.soilair.com
David Potts
860-510-0730
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