Input
Parameters
for
Coalbed
Methane
(
CBM)
Produced
Water
Treatment
Technologies
Nanofiltration
Input
Parameters
Description:
­
Skid
mounted
in
two
stages,
2:
1
array,
six
4"
elements
per
vessel,
18
total
elements
­
Feed
pressure
will
be
90
psi,
based
on
computer
projections
for
third
year
in
operation
­
Skid
will
be
approximately
4'
wide,
6'
tall,
20'
long
­
Installation
cost
of
nanofiltration
skid
includes:
pumps,
cartridge
filter,
elements,
pressure
vessels,
instruments
and
face
piping
­
No
by­
pass
blend,
all
raw
water
is
treated
­
Long
term
average
TDS
target
of
700
mg/
L
Installation
Costs
Cost
Type
Equipment
Costs
(
Nanofiltration):
80,000
2004$
Initial
O&
M
Costs
Power:
200
2004$
Monthly
Chemicals
100
2004$
Monthly
Membrane
replacement:
8,000
2004$
Occurs
once
every
four
years
Cartridge
filter
replacement:
300
2004$
Annual
Labor
Estimate:
1
hour/
day
Labor
Rate:
40
2004$/
hr
Unit
Produced
Water
Volume
Estimate:
16
gal/
min
Nanofiltration
Input
Parameters
Description:
­
Skid
mounted
in
two
stages,
2:
1
array,
six
4"
elements
per
vessel,
18
total
elements
­
Feed
pressure
will
be
180
psi,
based
on
computer
projections
for
third
year
in
operation
­
Skid
will
be
approximately
4'
wide,
6'
tall,
20'
long
­
Installation
cost
of
nanofiltration
skid
includes:
pumps,
cartridge
filter,
elements,
pressure
vessels,
instruments
and
face
piping
­
20%
by­
pass
and
blended
with
treated
effluent
­
Long
term
average
TDS
target
of
400
mg/
L
Installation
Costs
Cost
Type
Equipment
Costs
(
Nanofiltration):
100,000
2004$
Initial
O&
M
Costs
Power:
300
2004$
Monthly
Chemicals
150
2004$
Monthly
Membrane
replacement:
9,000
2004$
Occurs
once
every
four
years
Cartridge
filter
replacement:
300
2004$
Annual
Labor
Estimate:
1
hour/
day
Labor
Rate:
40
2004$/
hr
Unit
Produced
Water
Volume
Estimate:
16
gal/
min
700
mg/
L
TDS
Long
Term
Average
(
1000
mg/
L
Limit)

Installation
Costs
Equipment
Costs
(
Nanofiltration):
80,000
2004$

Annual
O&
M
Costs
Power:
2,400
2004$
Chemicals
1,200
2004$
Membrane
replacement:
2,000
2004$
Cartridge
filter
replacement:
300
2004$
Labor:
14,600
2004$

Annualize
costs:
28,500
2004$
Annual
volume
of
produced
water
treated:
200,229
barrels
Cost
per
barrel:
14
cents
per
barrel
400
mg/
L
TDS
Long
Term
Average
(
500
mg/
L
Limit)

Installation
Costs
Equipment
Costs
(
RO):
100,000
2004$

Annual
O&
M
Costs
Power:
3,600
2004$
Chemicals
1,800
2004$
Membrane
replacement:
2,250
2004$
Cartridge
filter
replacement:
300
2004$
Labor:
14,600
2004$

Annualize
costs:
32,550
2004$
Annual
volume
of
produced
water
treated:
200,229
barrels
Cost
per
barrel:
16
cents
per
barrel
