Canplas Industries Grease Interceptors Joe Howdle

Canplas Industries
40107786
Grease Interceptors
GI14CAN
Joe Howdle
03/06/2015
Credit(s) earned on completion of
this course will be reported to AIA
CES for AIA members. Certificates of
Completion for both AIA members
and non-AIA members are available
upon request.
This course is registered with AIA CES
for continuing professional
education. As such, it does not
include content that may be deemed
or construed to be an approval or
endorsement by the AIA of any
material of construction or any
method or manner of handling,
using, distributing, or dealing in any
material or product.
_______________________________________
Questions related to specific materials, methods, and
services will be addressed at the conclusion of this
presentation.
Copyright Materials
This presentation is protected by US and International Copyright laws.
Reproduction, distribution, display and use of the presentation without written
permission of the speaker is prohibited.
© Canplas Industries Ltd. 2014
Course
Description
This session will cover the impact of excessive fats, oils, and
grease (FOG) on the sanitary sewer system. You will learn about
the various types of Grease Interceptors, North American model
codes and performance standards and sizing calculations
required to provide the optimum grease management solution
for a given application.
Learning
Objectives
At the end of the this course, participants will be able to:
1) Participants will gain an understanding of the existing statistics surrounding the
negative impact of poor grease management practices and the sanitary sewer
system.
2) Participants will be able to identify and comparatively value the generic types of
Grease Interceptor (HGI, GGI, GRD)
3) Participants will have a clear understanding of the North American Grease
Interceptor performance standards (CSA B481.1, ASME A112.14.3, PDI G101, Z1001)
4) Participants will learn how to properly size a grease interceptor and be able to
confidently provide an engineered recommendation; providing the optimum
grease management solution for a given application.
Grease Interceptors
Engineering with confidence; Solutions for
the operational management of Fats, Oils, &
Grease (FOG).
FATBERG!
Sewer Backups overwhelm cities:
USEPA Report
-
(2004) 47% blockages
(2009) Data indicates 65% of spills
1500+ overflows per state per year
Cost: Hundreds of thousands of $$$ +++
Feb 14, 2014
- 62% of 15,000 reported sewer blockages
- Clearing backups caused by grease cost
the city an estimated $4.65 million last year.
FOG Programs Go Viral
Fats, Oils and Grease (FOG) Program - City of Virginia Beach
IWMD - Bureau of Sanitation – FOG Program LA City
Cut Through the FOG | The City of Portland, Oregon
City of Anaheim - FOG Program
Fats, Oils and Grease (FOG) :: City of Edmonton
City of Fullerton - F.O.G. Control Program
Responsibilities
Food Service & Commercial Establishments are required to
install operate and maintain an approved type and
adequately sized grease interceptor necessary to maintain
compliance with the objectives identified in the local code.
Grease Interceptors
A plumbing appurtenance or appliance that is
installed in a sanitary drainage system to intercept
nonpetroleum fats, oil, and grease (FOG) from a
wastewater discharge.
Types of Grease Interceptors
Hydromechanical (HGI)
Utilize hydraulic flow action (transitional), internal baffling, air
entrainment, and a difference in specific gravity between
water and FOG
Gravity (GGI)
Utilize gravity flow and retention time as the primary means of
separating FOG
Grease removal Device (GRD)
A hydromechanical grease interceptor that mechanically
removes non-petroleum fats, oils and grease (FOG) from the
separation chamber, the control of which is either automatic
or manually initiated and involves maintaining liquefied state
of FOG
Hydromechanical (HGI)
-
Popular and generally available with a rated flow
capability up to 100 gpm (6.31L/s)
-
Comprehensive standard for the basic testing and rating
requirements (PDI G101, ASME A112.14.3, CSA B481.1)
-
Specifying engineer or purchaser of a HGI can be assured
that the interceptor will perform as intended when it has
been tested
-
Grease removal is typically performed by opening the
access cover and…
-
pumping by licensed third party contractor
manually skimming the accumulated grease
Hydromechanical (HGI)
Gravity (GGI)
-
Minimum capacity of 350G US. Typically 750G US in
application.
-
Commonly made of 4-inch (101.6-mm) minimum thickness
concrete walls, interior concrete barriers/chambers (min 1)
that dampen flow and retain FOG by flotation
-
Typically used outside buildings as in-ground installations
-
GGI generally do not include the draw-off or flow-control
arrangements common to HGI units
-
Tend to be internally and externally configured with
unique, pre-installed features designed by an Engineer
(PE) to meet the local jurisdictional requirements of a given
project location
Gravity (GGI)
Grease Removal Device (GRD)
-
Typically hydromechanical interceptors that incorporate
automatic, electrically powered skimming devices
-
Two variations: Timer-controlled & Sensor-controlled
-
Often fitted with an electric immersion heater (104
degrees F) to elevate the temperature to maintain a liquid
state for skimming purposes
-
Manufacturer should be consulted regarding electrical,
service and maintenance requirements
-
GRD operator requires thorough training
(daily maintenance is required)
Grease Removal Device (GRD)
Image courtesy of Thermaco (Jan 2015)
Local Code
Most jurisdictions rely on Model Plumbing Codes to provide an
adequate solution for FOG management and enforcement.
Model Plumbing Codes
UPC (2012) – Hydromechanical Grease Interceptors (HGI)
NSPC (2012) - Hydromechanical Grease Interceptors (HGI)
NPCC (2010) – Every interceptor shall have sufficient
IPC (2012) - Hydromechanical Grease Interceptors (HGI)
shall be tested and rated in accordance to ASME A112.14.3,
CSA B481.1 or PDI G101. HGI sizing shall be according to
Table 1014.2.1 by fixture volume or pipe diameter. HGI
installation is permitted outdoors or indoors. Gravity Grease
Interceptors (GGI) shall comply with IAPMO/ANSI Z1001 and
shall be sized by Drainage Fixture Units to determine the
liquid gallon holding capacity (minimum 500 gallons). Food
waste grinders and dishwashers shall not be connected to or
discharge to any grease interceptor unless specifically
required or permitted by the Authority Having Jurisdiction.
capacity to perform the service for which it is provided. Any
equipment discharging waste or organic solids shall not be
located upstream of a grease interceptor unless it is first
routed through a solids interceptor. Although it is not listed in
the plumbing code, most jurisdictions in Canada require
compliance with CSA B481.1.
shall comply with ASME A112.14.3 or PDI G101. Sizing shall be
in accordance to PDI G101, Table 6.2.10 or the
manufacturer’s instruction. Where a food waste grinder
discharges through an HGI it must be routed through a solids
interceptor prior to the grease interceptor. Gravity Grease
Interceptors (GGI) shall be sized and designed by a locally
registered and licensed design professional. GGIs shall be
sized by gallons factoring a 30 minute retention time at half
pipe flows per Appendix K. Food waste grinders may
discharge directly to a GGI. Dishwashers are permitted to be
routed to HGIs or GGIs.
shall be tested and rated in accordance to ASME A112.14.3,
CSA B481.1 or PDI G101. Gravity Grease Interceptors (GGI)
shall comply with IAPMO/ANSI Z1001. Gravity Grease
interceptors (GGI) with FOG disposal systems are required to
comply with ASME A112.14.6. Dishwashers (without prerinse
sinks), must connect to a grease interceptor. Food waste
grinders that discharge to a grease interceptor must first be
routed through a solids interceptor.
North American Performance Standards
-
Designed to simulate an actual plumbing installation in
which the interceptor is subjected to severe operational
conditions.
-
HGI’s up to 100gpm
-
Approved interceptors will have a minimum average
grease removal efficiency of greater than 90% and will
retain not less than 2-1/4 lbs of grease for each 1 gpm
discharged.
-
Most widely used and recognized standard
-
According to PDI's website (www.pdionline.com) there are
24 manufacturer's with grease interceptors certified to this
standard.
-
Governs Hydromechanical Interceptors
-
Covers general product requirements/performance
criteria for testing and rating of GIs, whose rated flows are
100 gpm or less.
-
Testing under ASME A112.14.3 is almost identical to that
under PDI G-101 except it is based on 2 lbs for each 1 gpm
discharged
-
Listed and approved by the (UPC), the (IPC), the (NSPC)
and most independent state plumbing codes.
-
Specifies the minimum requirements for the performance,
safety, and quality of grease interceptors up to 100 gpm.
-
Covers material, design, and construction requirements for
grease interceptors that are intended to separate and
collect organic FOG from water.
-
This certification specifically requires testing to ASME
A112.14.3 for the interceptors flow rate and rated capacity
and requires the interceptor to be marked with its removal
efficiency, flow rating, and maximum grease containment
capacity.
IAPMO/ANSI Z1001
-
This is the primary standard governing gravity grease
interceptors (GGI)
-
Governs design requirements and construction material
requirements.
-
Does not require a performance test for certified units, but
rather only mandates leakage testing.
-
There is some conversation indicating that in the future
GGI’s will be required to have a performance similar to
that of HGI
Sizing an HGI
Sizing a GGI
UPC – Table 1014.3.6
Physical Capacity:
Gallon capacity (volume) of the interceptor based on discharge
fixture units (DFU’s) entering the interceptor
DFU’s are identified in UPC Ch.7 based on occupancy or use
Maintenance and Operation
Quick Review
1) Did you gain an understanding of the existing statistics surrounding the negative
impact of poor grease management practices and the sanitary sewer system?
2) Are you able to identify and comparatively value the generic types of Grease
Interceptor?
3) Do you have a clear understanding of the North American GI performance
standards?
4) Are you comfortable with sizing a grease interceptor and providing an
engineered recommendation?
This concludes The Continuing Education Course
Joe Howdle, CSP
Prairie Region Sales Representative
C 780-909-3955
T 800-461-5300
E [email protected]