Download - UWMX WTP
![Page 1: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/1.jpg)
1
Full-Scale Testing of Innovative High Rate Filter Media for Plant Expansion
Bob Raczko, P.E.United Water
![Page 2: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/2.jpg)
2
UWMX WTP
Location: Manalapan, NJ Size: 5 mgd (790 m3/hr), but needs to be expanded to 8 mgd
(1,260 m3/hr) to meet increasing water demands within next several years
Plant Processes: - Coagulation/flocculation/two-stage
sedimentation/filtration/disinfection/finished storage/finished water pumping- Powdered Activated Carbon (PAC) added to second stage sedimentation for
seasonal taste and odor (T&O) control Filters currently are major limiting step in process:
- 6 filters (5 with 1 out of service for backwashing) operate at a nominal rate of 3 gpm/sf (7.3 m/hr)
- Based on previous Filtralite testing at Haworth, NJDEP will allow testing up to 7 gpm/sf (17 m/hr)
- Also evaluating larger anthracite/sand media, NJDEP will allow testing up to 5 gpm/sf (12 m/hr)
If successful, new media will allow filtration capacity to be expanded without increasing the number of filters, which will significantly reduce capital expenditures
![Page 3: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/3.jpg)
3
HAWORTH WTP – PREVIOUS PILOT TESTING
Compared: Conventional anthracite/sand Filtralite – expanded clay media:
– Larger size media– Larger macropore size for solids capture
Findings: Filtralite achieved comparable performance at 7.5 gpm/sf
compared to anthracite/sand at 5 gpm/sf Filtralite achieved longer filter runs, less headloss
development
![Page 4: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/4.jpg)
4
UWMX WTP DEMONSTRATION TESTING
Received approval from NJDEP to modify two filters for demonstration test: New underdrains Provide additional depth for both anthracite/sand and
Filtralite medias
Received approval from NJDEP to conduct demonstration test: Anthracite/sand – test up to 5 gpm/sf Filtralite – test up to 7 gpm/sf Evaluating:
– Turbidity– Particle count– Headloss development – Volume Treated, Run Time
![Page 5: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/5.jpg)
5
ParameterFilter 4 Existing
Filter 5Filtralite
Filter 6Anthracite/
SandTop Layer 12” No. 1
anthracite21” 2.0 mm
Filtralite21” 0.95-1.05 mm anthracite
Bottom Layer
12” 0.45-0.55 mm sand
10” 1.0 mm Filtralite
10” 0.50-0.60 mm sand
Support Gravel
17” (graded) 10” pea gravel 10” pea gravel
FILTER MEDIA SPECIFICATIONS
![Page 6: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/6.jpg)
6
EXISTING MEDIA AND UNDERDRAINS
![Page 7: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/7.jpg)
7
NEW ANTHRACITE/SAND MEDIA AND UNDERDRAIN
![Page 8: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/8.jpg)
8
FILTRALITE MEDIA AND UNDERDRAIN
![Page 9: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/9.jpg)
9
NEW UNDERDRAIN - NOZZLES
![Page 10: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/10.jpg)
10
TESTING TO DATE Initial Testing (11/10/12 – 1/12/13):
– Target flow ~ 1 mgd– Filter 5 (Filtralite) and Filter 6 (new A/S) – premature turbidity/particle
breakthrough, believed to be caused by PAC addition in second clarifier; Filter 4 (existing filter) is fine
– Added PACl as filter aid– Improved turbidity/particle performance– Initially plant operated 16 hr/day (low demands); switched to 24/7 operation
on 1/6 (shut down on weekends); turbidity/particle performance more stable; Filter 6 more stable than Filter 5
1/13/13 – 1/24/13:– Increased Filter 5, Filter 6 in steps: 1.2 mgd, 1.4 mgd, 1.5 mgd, 1.6 mgd– PACl filter aid continued– Maintained turbidity/particle performance; shorter filter runs (as expected);
Filter 6 more stable than Filter 5
Testing stopped on 1/25/13:– High TDS in raw water (road salting)– Plant switched to Aquifer Storage and Recovery (ASR) wells
![Page 11: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/11.jpg)
11
11/13/
12
11/16/
12
11/19/
12
11/22/
12
11/25/
12
11/28/
1212/
1/1212/
4/1212/
7/12
12/10/
12
12/13/
12
12/16/
12
12/19/
12
12/22/
12
12/25/
12
12/28/
12
12/31/
121/3
/131/6
/131/9
/131/1
2/131/1
5/131/1
8/131/2
1/131/2
4/13
0
500
1000
1500
2000
2500
3000
3500
Volume Treated (minimum flow 1 mgd, max turbidity 0.05 ntu)
Filter 4 Filter 5 Filter 6
Volu
me
Trea
ted
(MG
)
Filter Aid Started 12/4
24/7 Opera-tion Started 1/6
1.2
1.4
1.2
1.41
1.41.41
1.5
1.5
1.5
1.6
1.6
Note: 1. Filters 5,6 flows were 1 mgd on 1/19
![Page 12: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/12.jpg)
12
11/13/
12
11/16/
12
11/19/
12
11/22/
12
11/25/
12
11/28/
1212/
1/1212/
4/1212/
7/12
12/10/
12
12/13/
12
12/16/
12
12/19/
12
12/22/
12
12/25/
12
12/28/
12
12/31/
121/3
/131/6
/131/9
/131/1
2/131/1
5/131/1
8/131/2
1/131/2
4/13
0
1
2
3
4
5
6
7
8
Headloss(to end of run)
Filter 4 Filter 5 Filter 6
Hea
dlos
s (f
t)
Filter Aid Started 12/4
24/7 Opera-tion Started 1/6
![Page 13: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/13.jpg)
13
0.9 1 1.1 1.2 1.3 1.4 1.50
10
20
30
40
50
60
70
Run Time vs Flow
Filter 4 Filter 5 Filter 6
Flow (MGD)
Run
Tim
e (H
ours
)
![Page 14: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/14.jpg)
14
INITIAL TESTING OBSERVATIONS
Filter 5 (Filtralite): Lowest Headloss Development Can operate at higher flowrates Concern with stability of turbidity/particle performance
Filter 6 (new anthracite/sand): Lower headloss development than Filter 4 (existing media) Can operate at higher flowrates More stable turbidity/particle performance than Filter 5
(Filtralite)
![Page 15: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/15.jpg)
15
TESTING 4/22/13 – 9/14/13
Longer term (two - three week) operation at each flowrate
Goal is to establish acceptable performance at flowrate of 1.5 - 1.6 mgd in order to be able to high rate filters and avoid need to provide additional filters
Eliminating need for additional filters would save approx. $3 million in capital costs
Also evaluate performance w/o filter aid (is media seasoned?)
![Page 16: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/16.jpg)
16
4/26/2
013
4/30/2
013
5/4/20
13
5/8/20
13
5/12/2
013
5/16/2
013
5/20/2
013
5/24/2
013
5/28/2
013
6/1/20
13
6/5/20
13
6/9/20
13
6/13/2
013
6/17/2
013
6/21/2
013
6/25/2
013
6/29/2
013
7/3/20
13
7/7/20
13
7/11/2
013
7/15/2
013
7/19/2
013
7/23/2
013
7/27/2
013
7/31/2
013
8/4/20
13
8/8/20
13
8/12/2
013
8/16/2
013
8/20/2
013
8/24/2
013
8/28/2
013
9/1/20
13
9/5/20
13
9/9/20
13
9/13/2
013
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
Average Flowrate (while target flow maintained)
Filter 4 Filter 5 Filter 6
Flow
(m
gd)
ASR Blending started 8/22
![Page 17: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/17.jpg)
17
4/26/2
013
4/30/2
013
5/4/20
13
5/8/20
13
5/12/2
013
5/16/2
013
5/20/2
013
5/24/2
013
5/28/2
013
6/1/20
13
6/5/20
13
6/9/20
13
6/13/2
013
6/17/2
013
6/21/2
013
6/25/2
013
6/29/2
013
7/3/20
13
7/7/20
13
7/11/2
013
7/15/2
013
7/19/2
013
7/23/2
013
7/27/2
013
7/31/2
013
8/4/20
13
8/8/20
13
8/12/2
013
8/16/2
013
8/20/2
013
8/24/2
013
8/28/2
013
9/1/20
13
9/5/20
13
9/9/20
13
9/13/2
013
0
1000
2000
3000
4000
5000
6000
Volume Treated(while target flow maintained)
Filter 4 Filter 5 Filter 6
Volu
me
Trea
ted
(Tho
us G
al)
ASR Blending started 8/22
![Page 18: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/18.jpg)
18
4/26/2
013
4/30/2
013
5/4/20
13
5/8/20
13
5/12/2
013
5/16/2
013
5/20/2
013
5/24/2
013
5/28/2
013
6/1/20
13
6/5/20
13
6/9/20
13
6/13/2
013
6/17/2
013
6/21/2
013
6/25/2
013
6/29/2
013
7/3/20
13
7/7/20
13
7/11/2
013
7/15/2
013
7/19/2
013
7/23/2
013
7/27/2
013
7/31/2
013
8/4/20
13
8/8/20
13
8/12/2
013
8/16/2
013
8/20/2
013
8/24/2
013
8/28/2
013
9/1/20
13
9/5/20
13
9/9/20
13
9/13/2
013
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Headloss (while target flow maintained)
Filter 4 Filter 5 Filter 6
Hea
dlos
s (f
t)
ASR Blending started 8/22
![Page 19: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/19.jpg)
19
4/26/2
013
4/30/2
013
5/4/20
13
5/8/20
13
5/12/2
013
5/16/2
013
5/20/2
013
5/24/2
013
5/28/2
013
6/1/20
13
6/5/20
13
6/9/20
13
6/13/2
013
6/17/2
013
6/21/2
013
6/25/2
013
6/29/2
013
7/3/20
13
7/7/20
13
7/11/2
013
7/15/2
013
7/19/2
013
7/23/2
013
7/27/2
013
7/31/2
013
8/4/20
13
8/8/20
13
8/12/2
013
8/16/2
013
8/20/2
013
8/24/2
013
8/28/2
013
9/1/20
13
9/5/20
13
9/9/20
13
9/13/2
013
0
20
40
60
80
100
120
140
Run Time (while target flow maintained)
Filter 4 Filter 5 Filter 6
Run
Tim
e (h
r)
ASR Blending started 8/22
![Page 20: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/20.jpg)
20
0.9 0.95 1 1.05 1.1 1.15 1.2 1.25 1.3 1.35 1.40
20
40
60
80
100
120
140
Run Time vs Flow4/22/13 - 8/24/13
Filter 4 Filter 5 Filter 6
Flow (mgd)
Run
Tim
e (h
r)
![Page 21: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/21.jpg)
21
Time 16-Jul-13 05:00:00 17-Jul-13 10:00:00 18-Jul-13 15:00:00 19-Jul-13 20:00:00 21-Jul-13 01:00:000
20
40
60
80
100
120
140
160
180
0.000
0.020
0.040
0.060
0.080
0.100
0.120
0.140
Filter 4 - 7/15 - 7/22
[2-3̋µm] [>3-5µm] [>5-7µm] [>7-10µm] [>10-15µm] [>15µm] Turbidity
Part
icle
Cou
nt (
coun
ts/m
l)
Turb
idity
(nt
u)
![Page 22: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/22.jpg)
22
Time 16-Jul-13 05:00:00 17-Jul-13 10:00:00 18-Jul-13 15:00:00 19-Jul-13 20:00:00 21-Jul-13 01:00:000
10
20
30
40
50
60
70
80
90
0.000
0.020
0.040
0.060
0.080
0.100
0.120
0.140
0.160
0.180
Filter 5 - 7/15 - 7/22
[2-3̋µm] [>3-5µm] [>5-7µm] [>7-10µm] [>10-15µm] [>15µm] Turbidity
Part
icle
Cou
nt (
coun
ts/m
l)
Turb
idity
(nt
u)
![Page 23: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/23.jpg)
23
Time 16-Jul-13 05:00:00 17-Jul-13 10:00:00 18-Jul-13 15:00:00 19-Jul-13 20:00:00 21-Jul-13 01:00:000
50
100
150
200
250
300
350
0.000
0.020
0.040
0.060
0.080
0.100
0.120
0.140
0.160
0.180
Filter 6 - 7/15 - 7/22
[2-3̋µm] [>3-5µm] [>5-7µm] [>7-10µm] [>10-15µm] [>15µm] Turbidity
Part
icle
Cou
nt (
coun
ts/m
l)
Turb
idity
(nt
u)
![Page 24: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/24.jpg)
24
OBSERVATIONS 4/22/13 – 9/14/13
Medias appear to be seasoned (generally operate without filter aid)
Filter 5 (Filtralite): Lowest Headloss Development Can operate at higher flowrates Concern with stability of turbidity/particle performance;
susceptible to changes (hydraulic, water quality), especially near end of run
Filter 6 (new anthracite/sand): Lower headloss development than Filter 4 (existing media) Can operate at higher flowrates More stable turbidity/particle performance than Filter 5
(Filtralite)
![Page 25: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/25.jpg)
25
FUTURE WORK
Continue testing at higher rates (currently at 1.4 mgd)
Plant is currently on a blend of surface water and ASR water because of low streamflow and need to maintain passing flow. This results in high run times and volumes treated, which are not representative.
Will evaluate higher flowrates when plant is back on full surface water (no ASR)
Consider addition of small layer of sand (about 4 inches) to Filter 5 (Filtralite) to see if that improves stability of turbidity/particle performance
![Page 26: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/26.jpg)
26
THANK YOU!
Any Questions?
![Page 27: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/27.jpg)
27
Time 06-Jan-13 06:00:00 07-Jan-13 12:00:00 08-Jan-13 18:00:00 10-Jan-13 00:00:00 11-Jan-13 06:00:000
5
10
15
20
25
30
35
40
45
50
0.000
0.010
0.020
0.030
0.040
0.050
0.060
0.070
0.080
0.090
0.100
Filter 4 - 1/5 - 1/12
[2-3̋µm] [>3-5µm] [>5-7µm] [>7-10µm] [>10-15µm] [>15µm] Turbidity
Part
icle
Cou
nt (
coun
ts/m
l)
Turb
idity
(nt
u)
![Page 28: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/28.jpg)
28
Time 06-Jan-13 06:00:00 07-Jan-13 12:00:00 08-Jan-13 18:00:00 10-Jan-13 00:00:00 11-Jan-13 06:00:000
50
100
150
200
250
300
350
400
450
0.000
0.020
0.040
0.060
0.080
0.100
0.120
0.140
0.160
Filter 6 - 1/5 - 1/12
[2-3̋µm] [>3-5µm] [>5-7µm] [>7-10µm] [>10-15µm] [>15µm] Turbidity
Part
icle
Cou
nt (
coun
ts/m
l)
Turb
idity
(nt
u)
![Page 29: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/29.jpg)
29
Time 06-Jan-13 06:00:00 07-Jan-13 12:00:00 08-Jan-13 18:00:00 10-Jan-13 00:00:00 11-Jan-13 06:00:000
100
200
300
400
500
600
0.000
0.020
0.040
0.060
0.080
0.100
0.120
0.140
0.160
0.180
0.200
Filter 5 - 1/5 - 1/12
[2-3̋µm] [>3-5µm] [>5-7µm] [>7-10µm] [>10-15µm] [>15µm] Turbidity
Part
icle
Cou
nt (
coun
ts/m
l)
Turb
idity
(nt
u)
![Page 30: UWMX WTP](https://reader036.vdocuments.net/reader036/viewer/2022062310/56816522550346895dd7a2b6/html5/thumbnails/30.jpg)
30
11/13
/12
11/16
/12
11/19
/12
11/22
/12
11/25
/12
11/28
/12
12/1/1
212/
4/1212/
7/12
12/10
/12
12/13
/12
12/16
/12
12/19
/12
12/22
/12
12/25
/12
12/28
/12
12/31
/121/3
/131/6
/131/9
/13
1/12/1
31/1
5/131/1
8/131/2
1/131/2
4/13
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
Average Flowrate (to end of run)
Filter 4 Filter 5 Filter 6
Flow
rate
(m
gd)