2016 r3 susan cascino
TRANSCRIPT
City of Boston and InSinkeratorDemonstration Project
Garbage Disposers Solid Waste Management Tool
for Multi-family Buildings
Food, too good to waste!
• DEP waste ban• Moving Waste Diversion Needle
Disposers in Multi-family Residences can:• -Reduce trash• -Reduce Greenhouse Gas Emissions• -Optimize Resource Recovery via MWRA• -Avoid truck-based collection costs/impacts• -Cost-effective• -Promote Neighborhood Cleanliness• -Resident Participation and Satisfaction
InSinkErator Success Stories• ‒Interest generated by projects in Philly, Milwaukee, and Tacoma
How
Food Hierarchy
Food basics
• Mostly water (@70%)• Nutrient/energy rich (C:N) • 40% wasted• 15-20% of MSW• New generation disposers grind
everything (100% possible)• waste reduction, energy recovery,
compost
5
B
Boston Statistics
Population: 618,000Households: 273,000Hshds in 1 to 6-unit bldgs: 153,000 56%Hshlds in 7+ unit bldgs: 120,000 44%
Boston / InSinkErator Partnership
Project Leaders•Boston
‒Public Works Department‒Dept. of Neighborhood Development
•InSinkErator‒Carol Baricovich ‒Kendall Christiansen (former InSinkerator consultant)
SUPPORT FROM:--DEPARTMENT OF NEIGHBORHOOD DEVELOPMENT
IDENTIFIED BUILDING AGREEABLE TO FREE DISPOSER AND INSTALLATION
--BUILDING OWNER (NUESTRA COMUNIDAD) --PROPERTY MANAGER (WINN)
First Multi-Family Building Project
Multi-family Residence
Thomas Atkins Apartments, Roxbury• 48 moderate-income units• 2- and 3-bedroom apartments
occupied by families • opened in 2010, LEED-Gold
certification
Budget• Installation $200 per unit, total $9,600 • Waste Sort costs (two two-week sorts) $25,000• Tenant education $5,000.• Disposers/switches $200/unit, total $9600.• Total project $50,000.
Budget and Timetable
Timetable –8 Months• Pre-installation Baseline waste sort –January 2014.• Tenant education begins March 2014 • Installation of disposers –April 2014.• Post-installation waste-sort –November 2014.
Resident Education• Resident Survey , Pre-installation
Survey Findings –Population Characteristics • All Ages Represented; Most Apartments w/Families • Majority of Meals (3/Day) Prepared & Eaten at Home • Before Disposers, Food Scraps in the Trash
• Demonstration Model • New Ecology tenant education
• Meetings, demonstrations, signage
Waste Characterization Studies • Conducted by Mid-Atlantic Solid Waste Consultants (MSW)
• measure baseline waste generation• Audit composition and quantity of waste• Two 1-week tests to calculate weekly generation per
household: • Waste Collection and sorting location—Save That Stuff
InSinkErator Furnished Disposers – Evolution Series® PRO Compact – Advanced Disposer in Smaller Size
Trethewey Brothers Plumbing Handled Installations
Waste Characterization ResultsPre –Installation of Disposers
Post-Installation of Disposers
ReductionFood Scraps in Trash
13 lbs/hhd/wk 8 lbs/hhd/wk 5 lbs/hhd/wk 36%30% of trash 24% of trash 6%
Other Demonstration Project ResultsCity Food Waste
Reduction
Milwaukee 26%
Philadelphia 35%
Tacoma 25%
Food Waste Characterization
Food Type
Pre-Installation(Percent of Trash)
Post-Installation
Change
Vegetable/Grains 7.3% 14.1% 50%Liquid 1.6% 1.9% -14.2%Dairy/Meat/Bones/Shells 2.0% 3.8% 44.4%Mixed/Miscell 14.1% 3.3% -82%Food in Packaging 4.4% 0.8% -84.2%Total Food Waste 29.4% 23.8% -36.2%
• Reduced Odors and Trash • Kitchen Clean-up Easier and
Quicker • Reduced Flies and Pests in
Home/ Neighborhood• Convenient • Good for Environment • Disposer Usage High
o Almost Always Use It For Meal Prep and Cleanup
o Nearly All Food Scraps in Disposer
• Helped Manage Trash • Significant Decrease in Trash
Since Disposer Installed
Post-Installation Survey: High Regard for Disposers
Boston Water and Sewer Pipes
Good Bad
Food wastes is mostly water which flows easily through waste and sewer pipes
Fats, Oils and Grease (FOG) are bad for pipes
Utilizing existing pipes to transport food wastes reduces costs and emissions from trucking waste
FOG coagulates, decreasing flow
Food waste produces methane gas which powers the MWRA treatment plant
Blocked pipes cause sewer or residential plumbing to overflow
Bio solids produce fertilizer. Grease in cooking
MWRA Deer Island Treatment FacilityWaste water treatment is a biological process.It requires a balance of carbon nitrogen and phosphorous. Food waste is good for that
Annual Savings and ROI
Multi-family units
36% reduction in food waste
Trash hauling and disposal cost
Avoided hauling and disposal savings
120,000 14,000 tons per year
$156 per ton $2,200,000 per year
Disposal cost per hshold
Disposer costs 45% of Multi family hshds
Return On Investment
54,000 $504 $60,500,000 12 years
• Water Useo 1% of daily household water use
• Electricity Useo $0.50 per year
• Maintenanceo Designed to be maintenance freeo Disposer need to be used regularly for
optimal performance
Frequent Disposer Concerns
Conclusions
Disposers Contribute to SustainabilityLess food Waste in TrashLower Green House Gas EmissionsResource Recovery At MWRAResident SatisfactionNeighborhood CleanlinessPotential Cost Savings
Future of Disposers as a solid waste management tool
• Boston Housing Authority– 2000 units• Philadelphia Building Code Amendment
require disposer installation in all new residential units (Jan 1, 2016)
• New York City’s Analysis of Organic Waste Diversion February 2016 report recommends InSinkerators
Can NYC have it’s cake and compost it too?
• Expanding NYC residential curbside collection to include food-cost $200 million annually
• Processing capacity within 150 miles can accommodate 10% of organics
• Study encourages used of in- sink disposers in neighborhood with adequate wastewater treatment plant infrastructure. $4million savings in 4 districts
• Distribution of Costs among City , building owners and residents need to be resolved
Contact Information
Susan CascinoRecycling Director
Environment, Energy and Open SpaceCity of Boston