straightforward, energy efficient straightforward, mixing ...€¦ · storage/digestion aeration...
TRANSCRIPT
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Straightforward, Energy Efficient Mixing SolutionsStraightforward, Energy-Efficient Mixing Solutions
The power of innovation …
BioMixTM Compressed Gas Mixing
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Mixing Alternatives
Mixing Alternatives
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Municipal Wastewater Applications
Anoxic
BNR System
Channels
Anaerobic Digester
EQ
Sludge Storage/Digestion
Aeration
Pump Station
Anaerobic Swing Zone
Chlorine Contact
Chamber
3
Mixing Alternatives
• Maintain optimum conditions for nutrient removal
• Effectively suspend solids and maintain homogeneity
• Operate with high efficiency
• Have minimal maintenance requirements and cost
• Offer lowest life cycle cost
• Facilitate variable mixing intensity
Objectives and considerations of mixing technology
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Point-Source Mixers
• Energy input is isolated
• Up to 2x the energy cost of distributed
energy model
• Submerged mechanical equipment
• Multiple mixers (maintenance points)
in large plants
4
Nozzle Header
System
• Distributed energy input
• Effective and efficient:
• 60%+ energy savings
• No moving parts in the basin
• Multiple mixers replaced with a single
compressor
Distributed Energy Model
Mixing Alternatives
Point-Source Mixers
Distributed Energy Model
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• Rules-of-Thumb mixing power comparison have been derived through empirical field data in activated sludge applications
Technology Overview
5
Mixing Alternatives
Mixing Power Comparison
Technology Power (HP/1,000 ft3)
Floating and Submersible (direct-drive) Mixers 0.25 – 0.3
Long-Blade (gear reduced) Mixers 0.18
Vertical Turbine and Hyperbolic 0.12 – 0.15
Compressed Gas (improves with increasing depth) 0.065 – 0.1
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• 20-Year Cost to own BioMix vs. Submersible Mixers for Anaerobic/Anoxic mixing at a 6 MGD Facility.
Technology Overview
6
Mixing Alternatives
Mixing by the Numbers
Compressed Gas Mixing
Maintenance
Cost
Energy Cost
Initial Cost &
Installation
150
300
450
600
750
900
1,050
$1,300
0
Thousand
$74,439
$339,849
$309,500
Total
Cost
$723,788
150
300
450
600
750
900
1,050
$1,300
0
Thousand
$327,888
$668,556
$210,000
Conventional Mixing
Total
Cost$1,206,444
Maintenance
Cost
Energy
Cost
Initial Cost
&
Installation
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BioMixTM Compressed Gas Mixing
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• Intermittently firing short bursts of compressed air through engineered nozzles and controlled by valve panel
• Compressed gas mixing creates solutions that:• Save energy• Reduce maintenance• Address nutrient removal
• Effective mixing and efficient operation
• Uniform distribution of mixing energy • Guarantee < 10% coefficient of variation (CV)• 60% or more energy savings
• Highly scalable
• Once compressor replaces over 20+ mixers
• Flexible design
• Any basin footprint, depth or slope
• Field optimized operational parameters
Technology Overview
8
BioMix
Compressed Gas Mixing
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Technology Overview
9
BioMix
• Intermittent and sequential short bursts of compressed gas introduced into the fluid
• Large compressed gas volumes expand upward and outward
• Expanding bubbles provide controlled turbulence, fluid currents and provide mixing
• Does so with negligible amount of oxygen transfer due to low surface area to volume ratio
• Ideal for Anoxic and Anaerobic mixing environments
Compressed Gas Mixing
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BioMixEquipment
www.enviro-mix.com
10
Comprehensive Scope of Supply (Unit Responsibility)
In-Tank Nozzles, Piping and Anchors
Valve Panel w/ HMI Controller & Optional Remote MonitoringCompressor w/
Receiver Tank(s)
Comprehensive Application/Design Support
& Performance Guarantee
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BioMix System Components
BioMix Configuration
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BioCycle™ InstallationBioMix Configuration
12
Nozzle
Offset
(Sch 40S)
Header
(Sch 10S)
Header Supply Piping
(Sch 5S)
• 304 or 316 stainless steel• Headers w/Offsets factory
assembled• Header supply piping field
assembled w/ ProPress connections• Nozzles attached via threaded
connector• Self supporting header
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Hopewell (VA) BioMix™ InstallationValve Control Panel
www.enviro-mix.com
13
• NEMA 4X, 304 SS Panels
• Long life poppet/solenoid valves
• Human Machine Interface with
4 parameters of control
• Pressure
• Frequency
• Duration
• Sequence
Valve Control Panel
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Poppet/Solenoid Valve
Valve eValve Technology
14
• Designed for high frequency operation
• Long life, 20-25 million cycles
• Fire 2-3 times per minute
• 15+ year life
• Maintenance free
Valve Closed Valve Open
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• Rotary Screw Compressor
• After-cooler and moisture separator for cool, dry air
• Fire at 25-30 psig plus static head ≈ 7-10 psig
• Minimal maintenance
< 4 hours/year< $2,000/year in materials (parts/fluids)
• Quiet < 80 dBA w/enclosure
New Mixing Paradigm
Compressor Technology
15
Compressor
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Installations
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Market
Adoption
Installed
Pending Orders
Philadelphia, PA
Southwest WPCP: 200 MGD
Mt. Pleasant, SC
Center Street WWTP: 4.0 MGD
Butner, NC
SGWASA WWTP: 6.0 MGD
Gwinnett County, GA
F. Wayne Hill WRC: 60 MGD
Providence, RI
Bucklin Point WWTP: 116 MGD
Russellville, AR
City Corporation PCWTP: 6.5 MGD
Warren, MI
Warren WWTP: 36 MGD
Little Rock, AR
Fourche Creek, WWTP: 16 MGD
Chambersburg, PA
FCGA WWTP: 4.0 MGD
Norfolk, VA
HRSD - VIP: 54 MGD
20 Projects Through 201418 New Orders forecast for 2015
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Target Applications and Summary of Benefits
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19
Target Applications
Anoxic/Anaerobic Mixing BioMixTM
Low O2 Demand/Mixing Limited Aeration Zones
(De-couple Aeration and Mixing)
Channel Mixing
Sludge Storage
Equalization/Storm Water Holding
Aerobic SHT and Digesters(De-couple Aeration and Mixing)
Septage Receiving
Anaerobic Digesters
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Technology Overview
20
BioMix Advantage
• Fits virtually any tank configuration
• Energy input can be varied to provide mixing intensity required
• Wet installation capable
• Negligible O2 transfer due to low A:V ratio of large bubbles
• Equal or lower ORP compared to submersible mixers
• Full scale performance
• 60%+ Energy Savings vs. point-source mixing
• Even higher vs. diffused aeration (channels, sludge storage etc…)
• Replace 20+ Mixers w/ 1 compressor
• No In-Tank Maintenance
Reduced Maintenance
Reduced Energy Consumption
Highly Scalable and Flexible Operation
Facilitate Anoxic/Anaerobic
Conditions
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Questions?
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