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.

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© Canplas Industries Ltd. 2014

Copyright Materials

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.

Course Description

Learning Objectives

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.

At the end of the this course, participants will be able to:

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)

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.

IPC (2012) - Hydromechanical Grease Interceptors (HGI)

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.

NPCC (2010) – Every interceptor shall have sufficient

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.

NSPC (2012) - Hydromechanical Grease Interceptors (HGI)

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.

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

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?

Quick Review

This concludes The Continuing Education Course

Joe Howdle, CSP Prairie Region Sales Representative

C 780-909-3955 T 800-461-5300

E jhowdle@canplas.com