HomeMy WebLinkAbout1910_Brickhaven_AerosolTrialRequest_DIN27580_20170303
Field Trial Implementation Proposal
Brickhaven Structural Fill Facility
Leachate Aerosolization System Evaluation
Moncure, North Carolina
Rev.: 0
Date: March 3, 2017
Copyright 2017
Service Above All
Brickhaven Structural Fill Facility
Leachate Aerosolization System Evaluation
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Table of Contents
Introduction ......................................................................................................................................... 2
Problem Statement ................................................................................................................................... 2
Proposed Solution ..................................................................................................................................... 2
Field Trial Proposal .................................................................................................................................... 2
Field Trial Rationale ............................................................................................................................. 3
Description of Aerosolization Science................................................................................................... 3
General Assumptions ............................................................................................................................ 3
Description of Proposed Aerosolization Equipment ............................................................................. 4
Field Trial Objectives ............................................................................................................................ 4
Evaluation Criteria ..................................................................................................................................... 4
Success Criteria ......................................................................................................................................... 4
Field Trial Implementation Plan ........................................................................................................... 5
Field Trial Design ....................................................................................................................................... 5
Proposed Aerosolization Equipment Setup .......................................................................................... 5
Field Trial Environmental and Engineering Controls ................................................................................ 5
Data Collection Means and Methods ....................................................................................................... 5
Field Collected Data .............................................................................................................................. 5
Laboratory Derived Data ....................................................................................................................... 6
Field Trial Management and Data Evaluation ....................................................................................... 7
Proposed Schedule ................................................................................................................................... 7
Final Report ............................................................................................................................................... 7
Attachments
Brickhaven Structural Fill Facility
Leachate Aerosolization System Evaluation
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Introduction
Problem Statement
Charah, LLC (Charah) is the operator of the Brickhaven structural fill facility (Brickhaven) located in
Moncure, North Carolina. Charah's Brickhaven facility has historically generated between 600,000 ‐
3,000,000 gallons of leachate per month on average since October 2015. Leachate is generated from (1)
residual, free draining water present in the CCP material upon excavation, (2) operational waters applied
for dust suppression during general site operations and (3) precipitation that contacts the placed CCP
material in the structural fill cells. Leachate generation has been documented to be highly variable based
on several factors including, but not limited to precipitation volume, precipitation frequency and surface
area of the active structural fill working face. All leachate generated at the Brickhaven facility is required
by regulation and site specific permitting to be collected, contained and transported to one of several
disposal facilities permitted to accept industrial waste for final treatment and disposal.
Leachate is generated on a continuous basis at the Brickhaven facility and requires significant resources
to manage and dispose of to achieve regulatory compliance. This proposal outlines an alternative method
providing on‐site disposal. Charah has evaluated the resource requirements for several other means of
leachate disposal including, but not limited to, treatment via an on‐site wastewater pre‐treatment system,
on‐site treatment and disposal by an on‐site wastewater treatment system and solar/direct heat
continued to seek out innovative technologies to meet the needs of the Brickhaven facility for leachate
treatment and disposal.
Proposed Solution
An aerosolization system would allow for on‐site disposal of a significant portion of leachate generated at
the Brickhaven facility. This approach would offer the opportunity to reduce the volume of leachate
transported off‐site for treatment and discharge thereby reducing the number of trucks on the road and
freeing up capacity at municipal WWTP’s for business development opportunities. This reduction would
then theoretically increase operational efficiency and allow for the reallocation of financial resources
dedicated to leachate management to other project needs.
Field Trial Proposal
Charah proposes to conduct a field trial of a leachate aerosolization system at the Brickhaven facility to
assess the suitability and efficiency of this method of on‐site leachate disposal. This proposal is submitted
for review by the North Carolina Department of Environmental Quality (NC‐DEQ) Division of Waste
Management (DWM), Solid Waste Section (SWS) for review and approval. Charah proposes to operate
the field trial for a maximum of ninety (90) days as allowed by current regulations concerning innovative
technologies.
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Leachate Aerosolization System Evaluation
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Field Trial Rationale
To properly evaluate the capabilities of an Integrated Mobile Aerosolization System (IMAS) at the
Brickhaven site approval by NC‐DEQ for a testing period of ninety (90) days is being requested. During the
field trial, the effectiveness of the system will be evaluated for operational effectiveness, leachate
reduction and overall efficiencies. Upon the completion of the field trial, Charah will evaluate results and
determine next steps regarding pursuit of operational permitting.
Description of Aerosolization Science
Aerosolization is the process of taking a solid or liquid and creating an aerosol, a system of colloidal (or
extremely small – on the order of 50 to 2,000 micron) particles dispersed in/as a gas, smoke, or fog.
Aerosolization of leachate involves the atomization of leachate into very small particles using dedicated
pumps and an aerosolization machine to create an aerosol in ambient air. The generated leachate aerosol
is introduced into the ambient air using strong fans that direct the leachate aerosol into a controlled area
above the ground surface. Aerosolized leachate is subjected to atmospheric conditions and gravity to
separate water from dissolved contaminants as a treatment methodology. As aerosolized water converts
to the gas phase as vapor in the ambient air, dissolved contaminants are not able to move to the vapor
phase and fall back to the ground surface by gravity as a condensate. Based on vendor information,
approximately 45% disposal efficiency can be achieved in proper atmospheric conditions when available.
General Assumptions
The following general assumptions are followed in the development of the field trial proposal:
(1) Leachate from the Brickhaven structural fill does not contain several constituents of concern present
in MSW leachate. VOCs, landfill gasses, and SVOCs common to MSW leachate can be released during
aerosolization due to volatilization. These constituents are not valid for CCP generated leachate. Leachate
generated at the Brickhaven project has trace amounts of heavy metals. Heavy metals would be
separated, in theory, from the water portion of leachate during the aerosolization process and returned
by gravity to the lined structural fill area.
(2) The implementation of an aerosolization system will reduce but not eliminate the need for off‐site
transportation and disposal of leachate. The ability of an aerosolization system to operate properly is
completely dependent on favorable climatic conditions. An aerosolization system should not be operated
during cold conditions due to the risk of system failure caused by the propensity of the leachate to freeze.
(3) The operating location of the aerosolization system must be lined to comply with solid waste and
associated regulations. Additionally, all requirements for compliance and property boundaries must be
adhered to. Leachate aerosol must be sufficiently controlled to ensure there is no migration off‐site.
(4) The effectiveness of aerosolization is highly dependent on the following atmospheric conditions:
Relative Humidity
Wind Speed
Wind Direction
Ambient Temperature
Solar Radiation
Brickhaven Structural Fill Facility
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Description of Proposed Aerosolization Equipment
An Integrated Mobile Aerosolization System (IMAS) similar to that proposed for use by Republic Services
will be utilized for the field trial. A description of the main components are as follows:
Leachate pump and possible temporary storage tank to connect to existing leachate collection
and conveyance system and provide leachate to the proposed aerosolization area
One or more booster pumps to increase pressure and forces needed to push the leachate
through the aerosolization nozzles
Aerosolization nozzle headworks to aerosolize the leachate
High Powered fan to direct the aerosol into the atmosphere
Lined aerosolization “alley” approximately 100’ long x 300’ wide
Perimeter berms and netting to control mist migration and residual condensate
A proposed system schematic is provided as Attachment A.
Field Trial Objectives
Evaluation Criteria
The following criteria will be evaluated during the field trial:
(1) Reliability of IMAS System
(a) Maintenance required to operate an IMAS system on a continual basis
(b) Operational efficiency (fuel consumption) per volume of leachate disposed
(2) Efficiency of IMAS System
(a) Volume of leachate disposed of during aerosolization versus volume of leachate returned as
condensate
(b) Impact of atmospheric conditions on aerosolization efficiency
(c) Evaluation of perimeter controls to ensure no migration of aerosol occurs during varying
atmospheric conditions
Success Criteria
The field trial will be considered a success based on the following outcomes:
(1) An IMAS system can operate over a 90‐day period with no more than one non‐scheduled
maintenance period lasting no more than four hours
(2) Fuel consumption of power sources and/or integrated power units provide for the disposal
of a minimum of 200 gallons of leachate per gallon of fuel consumed.
(3) On average, a minimum of 40% of leachate is disposed of per day over the course of the 90‐
day field trial
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(4) Perimeter controls contain all leachate aerosol and return condensate within the field trial
area
Field Trial Implementation Plan
Field Trial Design
Proposed Aerosolization Equipment Setup
An IMAS system as described in this proposal will be provided by a third‐party vendor for use during the
proposed field trial. A conceptual schematic is provided as Attachment A. The proposed aerosolization
trial will be positioned to provide adequate separation from all compliance and property boundaries in
accordance with the current permits and regulations governing the Brickhaven structural fill project.
A leachate aerosolization “alleyway” is proposed to be constructed on top of structural fill Cell 1 that
currently has a minimum 12‐inch interim soil cover applied over the entire cell. The aerosolization
alleyway will be constructed with approximate dimensions of 100 feet in width by 300 feet length with a
sloping gradient back towards the aerosolization unit. The alleyway will have an HDPE liner to collect any
residual condensate that does not evaporate into the atmosphere. Diversion swales and/or ditches are to
be installed along the down gradient side of the alleyway to divert all condensate to a temporary return
line to an existing leachate cleanout point to return leachate into the leachate collection system for
recycling.
The proposed location of the aerosolization alleyway is provided as Attachment B.
Field Trial Environmental and Engineering Controls
A perimeter soil berm approximately 4 feet high will be constructed around the perimeter of the alleyway
to contain any residual aerosol that condenses and falls back to the ground surface. Mesh fencing will also
be installed in the top of the perimeter berm to contain evaporate from drifting due to changes in
environmental conditions (wind direction and speed; relative humidity). Mesh fencing will also be placed
in areas in close proximity to sensitive areas such as compliance and property boundaries near the
aerosolization system. Details on the proposed perimeter controls are provided as Attachment C.
Data Collection Means and Methods
During the proposed field trial, both field and laboratory data will be collected. Field data will be collected
by either automated field sampling equipment or by qualified vendor or Charah personnel. Laboratory
sampling and analysis will be provided by a NC certified laboratory for the appropriate media tested (air,
water, or soil). All data will be compiled and analyzed to determine if the field trial evaluation and success
criteria are met during the field trial period.
Field Collected Data
The following field data and frequencies of data collection will be collected during the proposed field
trial:
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Field Parameter Method Frequency Collection Agent
Ambient Temperature Automated Instrumentation
on IMAS; On‐site weather
station; KTTA weather
station data
Minimum – Hourly
Optimum ‐ Minute
IMAS Equipment or
Vendor; Verification
by Charah
Relative Humidity Automated Instrumentation
on IMAS; On‐site weather
station; KTTA weather
station data
Minimum – Daily
Optimum ‐ Hourly
IMAS Equipment or
Vendor; Verification
by Charah
Wind Speed Automated Instrumentation
on IMAS; On‐site weather
station; KTTA weather
station data
Minimum – Daily
Optimum ‐ Hourly
IMAS Equipment or
Vendor; Verification
by Charah
Wind Direction Automated Instrumentation
on IMAS; On‐site weather
station; KTTA weather
station data
Minimum – Daily
Optimum ‐ Hourly
IMAS Equipment or
Vendor; Verification
by Charah
Solar Radiation Astronomical data collected
from Moncure, NC site via
weatherunderground.com
website
Daily Charah
Barometric Pressure Access Weather Station
Data at site and/or KTTA
weather station via Internet
Hourly Charah
Laboratory Derived Data
The following laboratory data and frequencies of data collection will be collected during the proposed
field trial:
Field Parameter Method Frequency Sampling Location Collection Agent
Airborne Metals
EPA 6010C m,
Total metals on
high‐volume
Filter; collected
at a flow rate
required by
sampling
equipment
Minimum:
Two (2)
representative
tests a minimum
of one week apart
pre‐field trial;
One (1) test per 7
days of operation
during field trial;
Two (2) tests at
one week intervals
after field trial
Sample Points as
shown on Figure X.
Samples to be
collected at 50‐foot
setback, 200’
setback, and
compliance/property
boundary at a
minimum
3rd Party testing
firm qualified to
conduct ambient
air sampling;
samples to be
submitted to a
NC certified
laboratory
qualified and
experienced in
the specified
testing methods
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Proposed sampling locations are provided in a suggested sampling map as Attachment D. Sampling
locations can be amended based on the review and response of NC‐DEQ and the third‐party testing service
provider.
Field Trial Management and Data Evaluation
Proposed Schedule
The proposed field trial would be scheduled during ideal operating conditions during the months of May,
June, July, and or August of 2017 once approved by NC‐DEQ for implementation. The field trial will run
for the maximum ninety (90) day period for a field trial or as directed by NC‐DEQ.
Final Report
All data collected during the field trial will be compiled, reviewed, and presented by Charah to NC‐DEQ in
a final report within ninety (90) days of receiving all field and laboratory data from laboratory service
providers. The final report will contain all field and laboratory data as well as findings and
recommendations. If warranted, Charah will provide a request for a permit for a permanent
aerosolization system after the issuance of the final report and review by NC‐DEQ.
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Attachments
Brickhaven Structural Fill Facility Leachate Aerosolization System Evaluation
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Attachment A
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Brickhaven Structural Fill Facility Leachate Aerosolization System Evaluation
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Brickhaven Structural Fill Facility Leachate Aerosolization System Evaluation
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L
C
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V
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R
.
I
T
I
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A
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M
E
D
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A
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G
R
A
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F
L
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I
N
A
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F
A
C
E
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R
A
D
E
S
A
T
A
L
O
W
E
R
E
L
E
V
A
T
I
O
N
(
2
)
A
E
R
O
S
O
L
A
L
L
E
Y
W
A
Y
T
O
B
E
V
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A
T
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D
.
F
I
N
A
L
C
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R
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R
I
N
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S
O
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M
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N
D
E
D
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O
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O
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A
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P
R
I
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R
T
O
S
Y
S
T
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M
O
P
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R
A
T
I
O
N
.
(
3
)
C
O
N
T
I
N
G
E
N
T
F
E
N
C
I
N
G
L
A
Y
O
U
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A
Y
B
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R
E
C
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N
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I
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D
B
A
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P
R
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M
I
N
A
N
T
W
I
N
D
D
I
R
E
C
T
I
O
N
.
CELL 1 BOUND
A
R
Y
F
I
G
4
:
L
E
A
C
H
A
T
E
A
E
R
O
S
O
L
I
Z
A
T
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Y
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K
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L
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A
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N
F
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D
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I
A
L
P
R
O
P
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A
L
M
O
N
C
U
R
E
,
N
O
R
T
H
C
A
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L
I
N
A
1
2
"
-
1
8
"
I
N
T
E
R
I
M
S
O
I
L
C
O
V
E
R
C
E
L
L
1
C
C
P
F
I
L
L
Brickhaven Structural Fill Facility Leachate Aerosolization System Evaluation
___________________________________________________________________________________
Attachment D
5
0
'
B
U
F
F
E
R
1
0
0
'
B
U
F
F
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R
2
0
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:
(
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(
2
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.
(
3
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1
0
0
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W
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3
0
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CELL 1 B
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0
1
0
0
2
0
0
4
0
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M
A
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N
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F
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G
2
:
L
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A
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A
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A
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,
N
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C
A
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L
I
N
A
S
P
-
1
S
P
-
2
S
P
-
4
S
P
-
3
S
P
-
5
S
P
-
6
S
P
-
7
S
P
-
9
S
P
-
8
S
P
-
1
0