A presentation about innovative technologies to remove nitrogen from wastewater. Presented by Peter Annunziato from BioprocessH2O during the Buzzards Bay Coalition's 2011 Decision Makers Workshop series. Learn more at www.savebuzzardsbay.org/DecisionMakers
Innovative Techonolgies - Membrane and Moving Bed Biofilm Reactor
1. The Coalition for Buzzards Bay
(2011 Decision Maker Workshops – Reducing Nitrogen Pollution)
BioprocessH20
i
Biological Treatment and Filtration Systems
2. Presentation Outline
Nitrogen Removal Technologies:
Suspended Growth and Fixed Film Processes
• Airlift MBR Overview
• Airlift MBR Case Study
• MBBR/IFAS Overview
• MBBR Case Study
3. bioprocessH2O Background
• Location: Portsmouth, RI
• Founded: In 2002
• F
Focus: Fi d Fil and Membranes Systems for
Fixed Film d M b
S t
f
Wastewater Treatment and Water Reuse Applications
• Active In-House Research & Development Programs
(including bench scale pilot and treatability studies)
4. bioprocessH2O Offerings
Membrane Technology
• BioPULSE™ - Municipal/Industrial (Airlift)
• BioFLOW – Primarily Industrial (Crossflow)
• T iPURE™ - Tertiary for Water Reuse
TriPURE™
Biofilm Technology
• Static Loop Composite Chord (HRBF, SAGR)
• Moving Bed Biofilm Reactor (MBBR/IFAS)
Photobioreactor Technology
• Algae Growth and Harvesting
5. Membrane BioReactor Timeline
[60-70s]
Side Stream
Crossflow
MBRs
[80s Today]
[80s-Today]
Immersed
MBR –
Hollow
Fiber and
Flat Sheets
[Early 2000 -…]
Airlift MBR
utilizing
pressurized side
stream
membranes
6. bioPULSE™ Airlift External
Tubular M
T b l Membrane Technology
b
T h l
Advantages over Immersed Membranes
•
Ease of Installation
•
Automated Membrane Cleaning without Chemical
A t
t dM b
Cl
i
ith t Ch i l
or Wastewater Exposure
•
Safe Operator Environment (i.e. no confined space,
no MLSS exposure, facilitates service and
membrane replacement)
•
No special cranes, lifts or hoists required for O&M
9. Typical Airlift™ MBR System
(Process Flow)
De Aeration
Chemical Dosing
UF
Fine Screening
Fi
S
i
(2 mm)
Backwash
Bio-Reactor
8-12 g/L
Permeate control
AirLift
Circulation flow
Drain
12. Norit Airlift™ MBR Title 22 Certification
Point L
P i t Loma WWTP – S
San Di
Diego, CA (R
(Report, July 2006*)
J l
•
•
•
•
•
•
Permeate Production – Average 30 GFD for 20 hours and
hours,
Peak 45 GFD for 4 hours
Equivalent to ~10,000 gpd/8” module
q
,
gp
BOD and TSS: <2 mg/L
Total Nitrogen: <5 mg/L
Turbidity: <0.1 NTU
Total Coliform: >5-log removal (bdl for all samples)
* Report prepared by Montgomery Watson Harza
13. CASE STUDY: Ootmarsum – Netherlands
Plant Start-Up, October 2007
(MBR Pil t d f
Piloted from 2003 2005)
2003-2005)
16. WWTP Prior to Upgrade: Ootmarsum - Netherlands
• Original plant installed in early 1970’s
• Region developed into a summer vacation destination
• Peak wet weather flows can be >4X dry weather flows
• Upcoming legislation driving N&P limits
17. Ootmarsum – The Netherlands
Conventional Activated
Sludge Plant
Airlift MBR
i lif
24. Effluent Data
Parameter
( g )
(mg/L)
MBR
CAS/Sand
Filter
Effluent
(combined)
(
)
Effluent
Targets
g
BOD5
0.8
1.3
<1
<2
TSS
<1
<1
<1
<2
Total N
3.7
3.3
3.5
<4
Total P*
2.2
1.1
1.7
<0.15
•
•
MBR Start-Up: October 2007
*Bio P removal not optimized and not required by permit
25. bioFAS™ LCM & MBBR/IFAS Process
Modified Ludzak Ettinger (MLE)
Process Advantages
• Retrofit and Upgrade Existing Conventional Activated Sludge WWTPs
pg
g
g
• Denitrification to less than 10 mg/L TN
• Compact Footprint
26. bioFAS MBBR/IFAS
bioFAS MBBR/IFAS Nitrogen Conversion/Removal
pp
Process Applications
BOD Reduction/Nitrification
/
Total Nitrogen Removal Systems
• Modified Ludzak Ettinger (MLE) - BNR
• Modified 4-stage Bardenpho – ENR
IFAS or MBBR Processes
(25% up to 75% v/v)
27. bioFAS Submerged Attached Growth Biofilm Reactors
LCM Racks - Cost effective retro-fit and upgrade
of existing aeration basins and lagoons
Support rack with SS looped cord media
Modular Treatment Units (MTU)
Rectangular Carbon Steel Tank