2009-02-17 Seminar - City of Sugar Land - Surface Water Conversion

City of Sugar Land: Surface WaterCity of Sugar Land: Surface Water ConversionCity of Sugar Land: Surface Water City of Sugar Land: Surface Water Conversion, , Pilot Testing and Conceptual DesignPilot Testing and Conceptual Design

Jessie Li, PhD, PE, City of Sugar Land, TXSunil Kommineni, PhD, BCEE, Malcolm Pirnie, Houston, TX

J i Li PhD PE S il K i i PhD BCEEJessie Li, PhD, PEPublic Utilities Assistant Director

City of Sugar Land

Sunil Kommineni, PhD, BCEEAssociate

Malcolm Pirnie

Team EffortTeam Effort• SuEllen Staggs

H d Ch i ti• Howard Christian • Timothy Jahn• Shashi Kumar

• Chris Canonico• Brent Nicholas• Yue Sun

• Trent Slovak• Gary Rabalais• Dhananjay MishraDhananjay Mishra

BackgroundBackgroundgg

Fort Bend Subsidence District has mandated Fort Bend Subsidence District has mandated reduction of groundwater use byreduction of groundwater use by

30% by 201330% by 201360% by 202560% by 2025

City of Sugar Land plans to meet this City of Sugar Land plans to meet this y g py g prequirement by building a surface water requirement by building a surface water treatment plant oftreatment plant ofpp

9 mgd initial capacity9 mgd initial capacity22 mgd ultimate capacity22 mgd ultimate capacity22 mgd ultimate capacity22 mgd ultimate capacity

Source WaterSource Water

Source water is Oyster Creek water which is a man-ymade creek that receives water from Brazos River.

Oyster Creek WaterGroundwater

Source Water ChallengesSource Water Challenges

400

500

600

200

300

400

urbi

dity

(NTU

)

Suspended Solids & Particulates (Turbidity)

0

100

5/15

/07

6/14

/07

7/14

/07

8/13

/07

9/12

/07

10/1

2/07

11/1

1/07

12/1

1/07

1/10

/08

2/9/

08

3/10

/08

4/9/

08

5/9/

08

Tu

1 1 1

6789

L)

Natural Organic Matter(TOC, Color)

12345

TO

C (m

g/L

01

6/17

/07

8/6/

07

9/25

/07

11/1

4/07

1/3/

08

2/22

/08

4/12

/08

6/1/

08

7/21

/08

9/9/

08

10/2

9/08

12/1

8/08

Source Water Challenges (cont.)Source Water Challenges (cont.)Microbial risk factors of source waterMicrobial risk factors of source water

W fflW fflWastewater effluentsWastewater effluentsAgricultural runoffAgricultural runoffLivestock influenceLivestock influenceStorm water dischargesStorm water discharges

Parameter Units Average Maximum

HeterotrophicPlate Counts

MPN/ mL 670 740

Microbial Quality- Coliforms, Pathogens

Total Coliforms MPN/100 mL 2,420 2,420

Fecal Coliforms MPN/100 mL 180 689

Giardia cysts/L 0.15 0.35*

Cryptosporidium oocysts/L 0.27 0.4*

*Data from the monitoring location ten miles upstream of Sugar Land Intake Location

Source Water Challenges (cont.)Source Water Challenges (cont.)

20

30

200

250

300

n (n

g/L)

ng/L

)

MIB Geosmin

Aesthetic Quality- Taste and Odor Compounds10

50

100

150

Geo

smi

MIB

(n

00

50

5/15

/07

6/14

/07

7/14

/07

8/13

/07

9/12

/07

10/1

2/07

11/1

1/07

12/1

1/07

1/10

/08

2/9/

08

3/10

/08

800

500

600

700L)

Brazosport Water Authority

Brazos River Authority-US290 @ Hempstead

Gulf Coast Water Authority

Upstream Location

Aesthetic Quality- Chloride, TDS

200

300

400

Chlo

ride (

mg/

L Upstream Location

State SMCL

0

100

Sep-

87

Sep-

88

Aug

-89

Aug

-90

Jul-9

1

Jul-9

2

Jun-

93

Jun-

94

May

-95

May

-96

Apr

-97

Apr

-98

Mar

-99

Mar

-00

Feb-

01

Feb-

02

Jan-

03

Jan-

04

Dec

-04

Dec

-05

Nov

-06

Nov

-07

Process Selection Accounted for Source Water Challenges

Oyster CreekOyster Creek Treatment PlantTreatment Plant Customer TapCustomer Tap

Dynamics of source water, treatment, distribution system, and future regulations were considered in process selectiond u u e egu o s we e co s de ed p ocess se ec o

Surface Water Treatment ProcessesSurface Water Treatment ProcessesSurface Water Treatment ProcessesSurface Water Treatment ProcessesChlorine dioxide Chl i di id

PLATE MF/UFRAW WATER CLEARRAPID

Chlorine dioxide

Fluoride

Caustic

PACl

DISINFECT‐

From Oyster Creek

Chlorine dioxide Chloramines

To Distribution System

PLATE CLARI-FIER

MF/UFMEMBRANEFILTRATION

BACKWASH

RAW WATER RESERVOIR

CLEAR-WELL

RAPID MIX

GAC CONTACTORS

RO

DISINFECTION BASIN

RESIDUALS HANDLING

CLARIFIERINDEX

Solid Streams

Liquid Streams

BELT PRESS/CENTRIFUGE

Brine Disposal

Future Treatment OptionBELT PRESS/CENTRIFUGE

SolidsTo Off-site Disposal


PARTICULATES / PATHOGENS


Chlorine dioxide

Fluoride

Caustic

PACl

DISINFEC

From Oyster Creek



PLATE CLARI-FIER


BACKWASH

RAW WATER RESERVOIR

CLEAR-WELL

RAPID MIX

GAC CONTACTORS

RO

TION BASIN

RESIDUALS HANDLING

CLARIFIERINDEX

Solid Streams

Liquid Streams


Brine Disposal




COLOR / TASTE AND ODOR


Chlorine dioxide

Fluoride

Caustic

PACl

DISINFECT‐

From Oyster Creek



PLATE CLARI-FIER


BACKWASH

RAW WATER RESERVOIR

CLEAR-WELL

RAPID MIX

GAC CONTACTORS

RO

DISINFECTION BASIN

RESIDUALS HANDLING

CLARIFIERINDEX

Solid Streams

Liquid Streams


Brine Disposal




CHLORIDE


Chlorine dioxide

Fluoride

Caustic

PACl

DISINFECT‐

From Oyster Creek



PLATE CLARI-FIER


BACKWASH

RAW WATER RESERVOIR

CLEAR-WELL

RAPID MIX

GAC CONTACTORS

RO

DISINFECTION BASIN

RESIDUALS HANDLING

CLARIFIERINDEX

Solid Streams

Liquid Streams


Brine Disposal



Chloride Management Chloride Management Strategy Strategy C id Bl di ll C id Bl di ll Considers Blending as well as Considers Blending as well as TreatmentTreatment

Pilot Testing ObjectivesPilot Testing Objectives

Meet TCEQ requirements Meet TCEQ requirements

g jg j

Q qQ qValidate selectedValidate selected treatment treatment processprocessprocessprocessEstablish design/operating Establish design/operating

it i f “ i ht i i ”it i f “ i ht i i ” ffcriteria for “right sizing”criteria for “right sizing” of of processesprocesses

b d bb d bObtain operator and public Obtain operator and public inputinput

FullFull--scale vs. Pilot Treatment scale vs. Pilot Treatment ComparisonsComparisonsComparisonsComparisons

Full-scale Plant Treatment Processes

Pilot PlantTreatment ProcessesTreatment Processes Treatment Processes

PrePre--sedimentation (>1sedimentation (>1--day day HRT)HRT)

Raw Water Tank (10 min HRT)Raw Water Tank (10 min HRT)

PrePre--oxidation (w/ClOoxidation (w/ClO22)) PrePre--oxidation (w/ClOoxidation (w/ClO22))

Plate ClarifierPlate Clarifier Plate ClarifierPlate Clarifier

MF/UF MembranesMF/UF Membranes MF/UF MembranesMF/UF Membranes

GAC ContactorsGAC Contactors GAC ColumnsGAC Columns

RO MembranesRO Membranes RO MembranesRO Membranes

Primary and SecondaryPrimary and Secondary Beaker Tests for DisinfectionBeaker Tests for DisinfectionPrimary and Secondary Primary and Secondary DisinfectionDisinfection

Beaker Tests for Disinfection Beaker Tests for Disinfection Decay and SDSDecay and SDS--DBPs DBPs

Plate Clarifier ResultsPlate Clarifier Results

Membrane Pore Size OverviewMembrane Pore Size OverviewMembrane Pore Size OverviewMembrane Pore Size OverviewSuspended solidsSuspended solidsColloidsColloidsDissolved saltsDissolved salts

ParasitesParasites

BacteriaBacteria

Org. macro. moleculesOrg. macro. molecules

VirusesViruses

0.0001 0.001 0.01 0.1 1 10 100μm

hairCrypto-sporidium

smallest micro-

organism

polio virus

Sand FiltrationSand Filtration

MicrofiltrationMicrofiltration

UltrafiltrationUltrafiltration

NanofiltrationNanofiltration

Reverse OsmosisReverse OsmosisCeramic MembranesCeramic Membranes

MicrofiltrationMicrofiltrationNanofiltrationNanofiltration

MF/UF Membrane ConfigurationsMF/UF Membrane ConfigurationsCartridge Cartridge Membrane System Suppliers: Pall, Siemens and KochMembrane System Suppliers: Pall, Siemens and Koch

Filtered

Raw

Filtered

P

PressureVessel(s)

Membrane

Pump supplies positive pressure to DRIVE waterthrough membrane media.

Pump

Submerged Submerged Membrane System Suppliers: GEMembrane System Suppliers: GE--Zenon, Siemens and NoritZenon, Siemens and Norit

Raw

Filtered

Pump

OpenTank

Membrane

Pump suction PULLS waterthrough membrane media.

Pump

Piloted MF/UF SystemsPiloted MF/UF Systemsyy

Pall’s Pressure MF Siemens Pressure UF GE-Zenon’s Submerged UF

MF/UF Testing ProgramMF/UF Testing ProgramMF/UF Testing ProgramMF/UF Testing Program

Pil t T t D ti 120 dPilot Test Duration – ~120 daysStage 1 – 30-day Optimization Stage 2a 30 day DemonstrationStage 2a – 30-day DemonstrationStage 3a – 10-day Repeat DemonstrationStage 2b – 30-day DemonstrationStage 2b 30 day Demonstration Stage 3b – 10-day Repeat DemonstrationStage 4 – Process Upsetg p

MF/UF Optimization Test ResultsMF/UF Optimization Test Results

MF/UF Demonstration Test ResultsFlux: 60 gfd Mini Clean Interval: 72 hr

MF/UF Pilot Test SummaryMF/UF Pilot Test SummaryMF/UF Pilot Test SummaryMF/UF Pilot Test SummaryParameter Pall MF System Siemens UF

SystemGE-Zenon UF

SystemSystem SystemFlux (gfd) 60,60 55, 55 50,47

Threshold TMP (psi) 43 5 23 13Threshold TMP (psi) 43.5 23 13

Backwash Interval (min) 25 25 28

Mini Clean Interval (hr) 48, 72 48, 48 48, 48

Mini Clean Recipe 500 mg/L chlorine 200 mg/L Chlorine 100 mg/LMini Clean Recipe 500 mg/L chlorine 200 mg/L Chlorine 100 mg/L Chlorine/

1 g/L Citric Acid30 Day Testing Results Passed, Passed Conditional Approval, Failed, Failed(Pass/Fail) Passed

RO Chloride ResultsRO Chloride Results10000

1000

(mg/

L)

ne ne

100

hlor

ide (

Hurrican

Hur

rica

n

10Ch

RO Feed

RO Permeate

RO Reject1

7/11

/08

7/18

/08

7/25

/08

8/1/08

8/8/08

8/15

/08

8/22

/08

8/29

/08

9/5/08

9/12

/08

9/19

/08

9/26

/08

10/3/08

0/10

/08

0/17

/08

0/24

/08

0/31

/08

11/7/08

1/14

/08

1/21

/08

1/28

/08

RO Reject

7 7 7 8 8 8 9 9 9 1 10 10 10 10 1 11 11 11

GAC Pilot TestsGAC Pilot Tests

Candidate Granular Activated Carbons

Manufacturer Product Name Source Material

Mesh Size (US Sieves)

Calgon Carbon Filtrasorb® 400 Bituminous 12 x 40Calgon Carbon Filtrasorb® 400 Bituminous 12 x 40

Norit Americas GAC 400 Bituminous 12 x 40

Siemens WaterSiemens Water Technologies AquaCarb® 1240 Bituminous 12 x 40

PICA America Picahydro F22 Bituminous 12 x 40

GAC Pilot Test ResultsGAC Pilot Test Results25

30

35

Calgon

Norit

PICA

Siemens

10

15

20

MIB

(ng

/L) Background MIB

MIB Results

0

5

7/11

/200

8

7/18

/200

8

7/25

/200

8

8/1/

2008

8/8/

2008

8/15

/200

8

8/22

/200

8

8/29

/200

8

9/5/

2008

9/12

/200

8

9/19

/200

8

9/26

/200

8

10/3

/200

8

10/1

0/20

08

10/1

7/20

08

10/2

4/20

08

10/3

1/20

08

11/7

/200

8

11/1

4/20

08

3

3.5

4

4.5

5

L)

GAC 1 (Calgon)

GAC 2 (Norit)

GAC 3 (PICA)

GAC 4 (Siemens)

MF/UF Filtrate

TOC Results

1

1.5

2

2.5

3

TO

C (m

g/L

0

0.5

1

7/15/2008 8/4/2008 8/24/2008 9/13/2008 10/3/2008 10/23/2008

FullFull--scale Plant Locationscale Plant Location

Gannoway Lake

Proactive engagement of community is critical for the success of the project

QuestionsQuestionsQuestionsQuestions

Jessie [email protected](281) 275 2450(281) 275-2450

S il K i iSunil [email protected](713) 960-7406

Technology

2009-02-17 Seminar - City of Sugar Land - Surface Water Conversion