CoMag and BioMag Systems Treating More with Existing Assets...BioMag®System -More out of Existing...
Transcript of CoMag and BioMag Systems Treating More with Existing Assets...BioMag®System -More out of Existing...
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©2018 Evoqua Water Technologies
| Page 1TRANSFORMING WATER. ENRICHING LIFE.
©2018 Evoqua Water Technologies
CoMag® and BioMag® SystemsTreating More with Existing Assets
Embrace Gravity. Defy Convention.
Presented by Simon Radford/Jim Goodwin
©2018 Evoqua Water Technologies
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How to Participate Today
• Audio Modes
• Listen using Mic & Speakers
• Or, select “Use Telephone” and dial the conference (please remember long distance phone charges apply).
• Submit your questions using the Questions pane.
• A recording will be availablefor replay shortly after thiswebcast.
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Webinar Speakers
Jim Goodwin – Evoqua UK Applications ManagerA chemical engineering graduate (Aston University) with over 30 years experience in a wide range of industrial and municipal water and waste water treatment technologies. Latterly leading the process design function at Evoqua Water Technologies, concentrating on ultrafiltration processes and ballasted settlement technologies.
Simon Radford – Evoqua UK Sales ManagerA chemical engineering graduate (Leeds University) with over 30 years experience in water treatment with experience in ion exchange, reverse osmosis, ultrafiltration, membrane bioreactors and wastewater treatment. Currently responsible for the portfolio of unique process technologies that Evoqua supply to the municipal market place.
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Evoqua’s Global Locations
Evoqua Headquarters -Pittsburgh, Pennsylvania
Operates 170+ offices, plants, and factories throughout Australia, Canada, China, Germany, Italy, Singapore, the UK and US with 4,000+ employees worldwide.
100+ U.S. offices, plants & factories
Evoqua Serving Markets Around the World
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What if we could remove the physical barrier and maintain or improve effluent quality?
What if we could remove the physical barrier and maintain or improve effluent quality?
WHAT’S THE PROBLEM?SOLID/LIQUID SEPARATION WITH A FILTRATION BARRIER
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What if we could increase the specific gravity of flocs?
What if we could increase the specific gravity of flocs?
What’s the problem? Low specific gravity of the flocs
BioMag ® / CoMag®
BALLASTED WASTEWATER
TREATMENT PROCESSES
BioMag ® / CoMag®
BALLASTED WASTEWATER
TREATMENT PROCESSES
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BioMag® and CoMag® System Technologies Accomplish More… with Less
These systems can:
• Increase capacity
• Improve final effluent quality
• Improve stability
• Reduce footprint
• Reduce capital costs
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Derby
IRESemiconductor –CoMag - 30 m3/hr
NORTHUMBRIAN WATER Esh Winning – CoMag4 Ml/d
ANGLIAN WATERMarket Harborough –CoMag - 21 Ml/d
WELSH WATERRuthin – CoMag – 5 Ml/d
UK/IRE References
SEVENT TRENT WATERPackington - CoMag11 m3/hr
SEVERN TRENT WATERFinham – CoMag 248 Ml/d
SEVERN TRENT WATERRugby – BioMag – 60 Ml/d
WESSEX WATERBowerhill – BioMag– 3.5 Ml/d
WELSH WATERLletty Brongu –CoMag – 19 Ml/d
WELSH WATERGowerton CoMag Trial – 5 m3/hr
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Magnetite: Fe3O4
• Fully oxidized iron ore
• Mined
• Wide range of applications
• Readily available from multiple
sources
Six compelling properties
• Completely inert
• Specific Gravity: 5.2
• Readily embeds in floc
• Magnetically retrievable
• Non-abrasive
• Inexpensive
Magnetite as a Ballast
©2018 Evoqua Water Technologies
| Page 10TRANSFORMING WATER. ENRICHING LIFE.
©2018 Evoqua Water Technologies
Embrace Gravity. Defy Convention
Introduction to the
CoMag® System
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• Phosphorus
• Particulate solids
• Colloidal suspensions
• Heavy metals
• Colour
• Pathogens
• Algae
• Phosphorus
• Particulate solids
• Colloidal suspensions
• Heavy metals
• Colour
• Pathogens
• Algae
CoMag® System – What can it remove?
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CoMag® System Applications
• Tertiary Treatment
• Fixed-film secondary clarification
• Ultra-low phosphorus treatment
(<0.05 mg/l)
• Various industrial applications
Also
• Storm water treatment
• Drinking water treatment
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MagnetitePolymer
Sludge Recycle
Coagulant
Waste Solids
CoMag® System – How is it applied?
• Clarifiers 90+% smaller
• Increase capacity up to 10X
• Quality of tertiary filtration
• Reduces chemicals
• Promotes solids-contact
99.5% magnetite recovery from waste stream
Waste Solids
Magnetite Recovery
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CoMag® Process Flow Diagram
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CoMag® System Video
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Parameter Value Units Notes
Flow
Minimum 43,200 m3/day
Average 139,057 m3/day Including returns
Maximum 250,714 m3/day Including returns
Inlet Quality
TSS (95%ile) 14 mg/l
Ortho P (95%ile) 1.3 mg/l
Effluent Quality Guarantee
TP (average) < 0.18 mg/l
Fe (average) < 2 mg/l
TSS (average) < 7 mg/l
Chemical dose
Coagulant (Ferric Sulphate) 5 ppm Subject to jar test
Polymer 0.6 ppm Subject to jar test
Severn Trent Finham STW - CoMag® Plant in Numbers
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Severn Trent Finham STW – Overview
Final Settlement Tanks
Activated Sludge Plant
CoMag® Plant
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10 Standard Clarifiers
=
1 CoMag® Clarifier
Treating more… with less
CoMag® Clarifiers - Finham STW
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Finham STW – Process Layout
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Magnetite Recovery and Feed System
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Current Installation of Finham STW Plant
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CoMag ‘Low P’ Schemes - Numbers
Parameter Units Site A Site B
Minimum Flow m3/day 8994 2059
Average Flow m3/day 14420 2947
Maximum Flow m3/day 18525 4967
Average Feed TSS mg/l 35 45
95% Feed TSS mg/l 65 75
Average Feed T-P mg/l 1.5 1.2
Parameter Units Site A Site B
Average T-P Permit mg/l 0.5 0.25
95% Effluent TSS mg/l 8.0 5.0
95% Effluent Fe (as Fe) mg/l 4.0 4.0
Average Effluent TSS mg/l 5.0 2.5
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CoMag ‘Low P’ Schemes using the existing site infrastructure
Humus Tanks Duty Standby Clarifiers
To RiverPSTsScreens Feed
Trickling Filters
Fe Dosing
CoMag®
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• High rate ballasted clarification process
• No physical barrier to “clog”, much more robust under stress than filters
• Achieve TP < 0.05 mg/l
• For P removal, can be applied as 2o
or 3o system
• Very small footprint
• High rate ballasted clarification process
• No physical barrier to “clog”, much more robust under stress than filters
• Achieve TP < 0.05 mg/l
• For P removal, can be applied as 2o
or 3o system
• Very small footprint
CoMag® System Summary
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©2018 Evoqua Water Technologies
| Page 25TRANSFORMING WATER. ENRICHING LIFE.
©2018 Evoqua Water Technologies
Embrace Gravity. Defy Convention
Introduction to the
BioMag® System
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BioMag® Systems – Applications for Activated Sludge Processes
• Conventional ASP
• High Rate
• Extended Air
• Oxidation Ditch
• Multistage
• SBR
• Conventional ASP
• High Rate
• Extended Air
• Oxidation Ditch
• Multistage
• SBR
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Clarifiers are the Limiting Factor in ASP Process
BioMag® system:
Relieves bottlenecks
Enhancing clarifier
performance
BioMag® system:
Relieves bottlenecks
Enhancing clarifier
performance
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BioMag® Mixed Liquor Comparison
Settling determines the capacity of a WWTP
Settling determines the capacity of a WWTP
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FlowRAS
Magnetite Recovery
MagnetiteRecycle
MagnetiteFeed
SAS
BioMag® System - More out of Existing Tanks
MLSS
6,000+
Settlement rate (m/hr)
2-4
3,000
1
Q
RASSAS
2xQ
Improved Effluent Quality – NoTertiary Treatment Required
SAS
2xQ
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Severn Trent Rugby WWTW
BioMagPlant
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Severn Trent Rugby BioMag® - Plant in Numbers
Item Parameter Value Units Notes
PE 2020 107,975
2028 122,682 14% Increase in Load
Flow
DWF 21,761 m3/day
Average 28,324 m3/day 12% Increase in Av Flow
Maximum (FFT) 59,962 m3/day 25% Increase in FFT
Effluent Quality
TP (average) < 0.32 mg/l
TSS (95%ile) < 11.2 mg/l
Chemical dose
Coagulant (Ferric Sulphate) 10 + 5 ppm 2 point dosing (subject to trial)
Polymer 0.5 – 1.0 ppm Subject to jar test
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0 5,000 10,000 15,000
So
lids
Flu
x, k
g/m
2/h
r
MLSS, mg/l
FLUX CURVES
Rugby State Point Analysis
FFT Condition
Enhanced BioMag
Settling Flux Curve
Existing Settling
Flux Curve
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Rugby STW: Process Flow
BioMag®
System
Waste Sludge
SAS withMagnetite
RecoveredMagnetite
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BioMag® System Layout at Rugby WWTW
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Rugby – BioMag® System Footprint vs FST’s
BioMag Footprint Area of 252 M2 Versus 1385 M2
≈ 20% of Conventional Footprint
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Where to Use BioMag® System
• Capacity expansions
• Achieve tight nutrient limits without Tertiary Treatment
• Improve storm flow capacity
• Improve process reliability by overcoming poor settling sludge
• Sites with footprint constraints
• Upgrades with budget constraints
• New plant Construction
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©2018 Evoqua Water Technologies
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©2018 Evoqua Water Technologies
Thank You
Any Questions?
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Waste Sludge
Recovered Magnetite
Ballasted Waste Sludge
Stationary Magnetic
ArrayDrum
Rotation
Magnetite Recovery Drum – How it works
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