LARSEN
ENGINEERS
Rochester, NY Office
Serving customers since 1955
Celebrating our 55th anniversary
Outline
 Sustainable Green Developments overview
 Application of Green Principles for existing STP
upgrades
 Wind, Solar, Biogas Cogen power opportunities –
 Operating cost reduction – water conservation,
energy, sludge Recycle Reuse
 Green Infrastructure grant 2009 Case Histories
 Economics and Financing options
Energy & Environmental issues
 Dependence on Foreign oil
 Energy needs – 50% + imported.
 Climate change – Global warming
 Electricity costs expected to
increase in future
 Cost 12 c/Kwh now—
Yr. 2020- 30 c/Kwh?
Energy Future? Cost?
Projected World energy Demand to Increase..
57% by 2020
200 – 300% by 2050.
NYS Governor’s Goal
45% by Yr ‘15
Sustainability Goal
Energy Independence
Programs to Reduce Energy Demand
Generate Green Energy
Need solutions to
Deal with Climate
Change
Earth day
4/22/2010
Sustainability Goals
 Economic Growth
 Reduce costs and Taxes
 Enhance development in Communities
 Control Utilities Expenses
 Increase efficiency of Operations
 Share resources with other
municipalities to avoid duplication
 Create destination attractions to
attract tourists
 Quality of life in communities
Leadership in Energy &
Environmental Design
A leading-edge system for designing,
constructing, operating and certifying the
world’s greenest buildings.
What is “Green” Design?
Design and construction practices that
significantly reduce or eliminate the
negative impact of buildings on the
environment and occupants in five broad
areas:
 Sustainable site planning
 Safeguarding water and water efficiency
 Energy efficiency and renewable energy
 Conservation of materials and resources
 Indoor environmental quality
Environmental Technologies
 Static screens, automatic
micro-screens,
membranes
 Chemical coagulation,
flocculation, oxidation
 Gravity , centrifugal
clarification, floatation
 Fixed film biological
treatment
 Aerobic and Anaerobic
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treatment of high
strength waste
Sludge dewatering and
drying, composting
Bio cultures for process
enhancements
Chemical fixation
solidification
Membranes
Primary Areas of Needs and
Improvements
 Utilize excess treatment capacity-generate
additional revenues
 Take advantage of green energy generation
opportunities
 Reduce energy cost by treatment process
enhancement-apply new technology
 Digester capacity utilization for biogas energy
 Improve Sludge / Solids processing rates
 Coordinate discharge quality to take advantage of
Treatment plant capacity, within permit limits
Improvement Concepts
 Aeration power management – mixing, fine bubbles
 Retrofit Trickling filter stone media with plastic fixed film
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media to increase capacity and reduce recirculation rates –
lower power consumption
Improve solids disposal process. Evaluate simple
dewatering, conditioning to accelerate drying step
Evaluate Vermi-composting to increase revenues.
Enhance digester performance for biogas production with
hauled in industrial strength waste
Study co-gen opportunity for power production and waste
heat for digester heating.
Optimize the discharge to take advantage of hydraulic drop
to generate power
Renewable energy -Wind and Solar Power
GIGP Funding ’09 -’10
 $432M in Economic Recovery Funds
provided by the EPA for Clean Water
Infrastructure Projects in New York
State
 20% of clean water funds must be
reserved for “Green Innovation”
projects
 $35M placed in Green Innovations
Grant Program
 $32M from CWSRF
 $3M from DWSRF
Village of Elba, Lyons, Medina, Town of Williamson
Goals of GIGP Funding Program
 Preserve and create jobs
 Promote economic recovery
 Invest in environmental protection
and green innovation
 Funding authorized by the
American Recovery and
Reinvestment Act (ARRA) of 2009
GIGP Funding ’09 -’10
EXAMPLE FUNDED PROJECTS Village of Medina,
Town of Williamson,
Village of Elba, Lyons,
Medina Sludge
Compost Facility
Net Positive energy production 70 KW
The Greenest compost plant
Sludge Composting Facility,
Medina, Orleans County, NY
 0.75 dry tons per day
 Design, permit, procure
equipment, and provide
construction oversight
 The facility processes up to
0.75 dry ton per day within a
60 x 185 ft building.
 Net Zero by Dec. 2010
Solar PV Technologies
Rooftop or Ground Mounted
Medina Treatment Plant 90% GIGP grant
60,000 watts system $350,000.
Williamson(T)- 60KW
Medina
Projected Savings
Dollars Saved Through Upgrades
$4,320.00
Solar Array
$6,960.00
CHP unit-electrical
$8,640.00
$8,120.00
$6,912.00
Lighting including
sensors
Effluent-powered heat
pumps
CHP-gas
20
Medina- Net Zero Goal by 2020
Annual Energy Cost
$70,000.00
$60,000.00
$50,000.00
$40,000.00
$30,000.00
$20,000.00
$10,000.00
$0.00
$66,401.00
$62,081.00
$53,441.00
$46,529.00
$38,409.00
$31,449.00
Annual Energy Cost
21
GIGP- Project in progress
7
Nature based Treatment process
 Small systems ( LT 0.1 MGD) need simple to
operate technologies - anaerobic primary treatment
 Wetland systems for high degree of secondary
treatment
 Minimum operator attention , and low maintenance
costs
 Activated sludge, RBC, Filters more expensive
options for Larger plants. Costly to operate.
Wastewater Treatment
Process Schematics
Influent
Anaerobic
Digestion / Storage
Tank
Wetland Cells
Vertical Flow
Wetland Cell
Vertical Flow
Recycle/Feed pump
Polishing /
Recycle pond
Final
Discharge
Channel to
Creek
KEY FEATURES OF PROCESS :
LOW ENERGY AND LOW SLUDGE PRODUCTION, STABLE OPERATION ,
LOWER OPERATOR SKILLS REQUIRED ON PART TIME BASIS, REMOTE
MONITORING FOR SERVICE AND MAINTENANCE
Natural treatment system
120,000 GPD Minoa Village
Wetland Cell No. 1
Wetland Cell # 3
Anaerobic Filter
Leachate treatment
20,000 Gallons per day, from 4 sites
Steuben County, NY
Town of Lewiston Water Pollution Control Center
Micro turbine Cogeneration using Biogas
Dryer---
Turbine
Heat
Exchanger
Fuel
Booster
Airius Heat distribution-odor control
18
WIND POWER GENERATION OPPORTUNITY
Cost = 4-6 Cents/KWH
Independence from imported Oil !!
Control future energy costs
Small Wind TurbinesWind Tamer, Geneseo NY
Wind turbines for
Urban sites- 200w-5kw
Building and T-bar Applications
Building top installation
Billboard lighting
Eco house
Telecom base station
32
Micro Turbines- Horizontal Axis
0.5 kW to 5 kW per Unit
MICRO TURBINES FOR
RESIDENTIAL APPLICATIONS
The Jellyfish Wind Appliance :
A vertical-axis wind turbine
(VAWT)
36 inches tall,
40 kilowatt hours /month,
Cost $400 per Unit
Solar PV Technology
Multiple
Layout
Options
Micro-Hydro power
Heads of 10 to 600 feet and flow rates of 10
to 250 GPM
W (watts) = H (head or fall) x Flow (gallons
/minute) x .18 x .30
Energy Conservation via LED
50% savings and 20 +year lamp life
40
Pre-grown Modular
Roofing Panels
Eco-stone made from Waste plastics
Fixed Biofilm media
applications
Rain water Harvesting at
Industrial Plant- Harbec Plastics
Aeration Retrofit System
 FBC Technologies’ Bio²Bloc : Developed for
aerobic wastewater retention basins, tanks, or
lagoons that can benefit from fixed-film
treatment.
 The Bio²Bloc system removes BOD and
ammonia –Unlike an RBC, the aerated media
beds are in constant contact with the water and
are completely aerated by a highly efficient
aeration system.
 Add fixed film within aeration tanks to
increase biomass and eliminate need for return
activated sludge
Aeration Retrofit System
 FBC Technologies’ Octopus : Developed for
aerobic wastewater retention basins, tanks,
or lagoons that can benefit from floating
fine bubble aeration
 The system reduces power cost for
mechanically aerated systems and easy to
maintain
 Add fixed film Bio- Block within aeration
tanks to increase biomass and eliminate
need for return activated sludge
Economic Development Impacts
 STP with excess capacity can serve new growth
and attract new businesses
 Reducing the energy & solids disposal costs
offers opportunity to control future utility cost
and tax burden on residents.
 Producing low cost power will attract new
businesses.
 Public support is essential for installing the
windmill Solar panels at appropriate location
 Community image for sustainable policy brings
recognition and private investments.
July 4th 2020 – Community Achieves
Net Zero Energy Independence Goal
Net Zero City
UNDER CONSTRUCTION
 A place where innovation, technology and
sustainability meet and create a new kind
of city.
 A vibrant and beautiful city, powered by
renewable energy, innovative building
practices and new standards in sustainable
living.
 Welcome to Masdar City - the world's first
carbon-neutral, zero-waste city.
 Location – United Arab Emirates(UAE)
MASDAR– A GREEN CITY
Under Construction in (UAE)
Initiated in 2006, the project cost US$22 billion –
To Complete in 2015, Phase 1 completed
MASDAR–A NEW GREEN CITY
IN ABU DHABI UAE
The city will cover (2.3 sq mi) for housing 45,000
to 50,000 people and 1,500 businesses
MASDAR– A GREEN CITY
ABU DHABI, U. ARAB EMIRATES
Automobiles will be banned within the city;
People travelling via public mass transit ( Electric)
connected to outside network of roads
Self Funding Option for Energy
Conservation Measures
 Think like a power company- Distributed
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Generation
Buy long life equipment and spread cost over
20 to 30 Years
Use the power of low interest municipal
bonds
Create green revolving loan bonds
Help local residents and businesses to save
energy
Think Cash flow and not just Payback
Strive for Local financing and Control
“Practical Solutions for a Better
Tomorrow”
SERVE THE CLIENT
BENEFIT THE COMMUNITY
PROTECT THE
ENVIRONMENT