Transcript agdssga - AWMA Golden Empire Chapter`s

Kern County
Waste Management Department
Douglas E. Landon, Director
California’s Quest to Increase Recycling
 Recycling Goal of 75% by 2020
 Commercial Mandates
 32% of Trash is “Organic”
 15% of Trash is “Food Waste”
 State Goal Would Require
100 New Organic Facilities
California’s Quest to Increase Recycling
The Legislation
 AB 32 – Chaptered 09/27/2006
 AB 341 – Chaptered 10/06/2011
 AB 341 Implement July 1, 2012
 AB 1826 – On the Governor’s Desk
 With implementation 2/2016
What has Changed?
New Facilities - MRFs
What has Changed?
Inside
What has Changed?
Outside
Compostable Organic Waste
The Next Challenge
Green Waste
Wood Waste
Food Waste
New Challenges
Organics
Organics
Mixed Recyclables
Putrescible
Non-Putrescible
Weekly Collection
Bi-Weekly/As-needed collection
Local Processing (Composting)
Local Sorting
Local Markets
Foreign and Domestic Markets
Rejection @ 1% Contamination
Rejection @ 20% Contamination
Stringent Permitting Req’mnts
Stringent Quality Standards
Diverse Uses for Organic
Composting
Source:
City of Bakersfield
Organic Facilities in Kern County
• Private
• Synagro – Greenwaste Only
• Liberty – Biosolids Co-composting
• Community Recycling
• Public
• Mt. Vernon – Greenwaste and Foodwaste
• Shafter-Wasco Landfill -
Compost Facility Challenges
(regulatory, economic, and environmental issues)
• Reduce VOC Air Emissions
• Electrify Diesel Equipment
• Compost More with Less Space
• Add Food Waste (without Vectors)
• Save/Conserve Water
Moving Bulk Materials…
How to
Electrify Windrows?
Load 100,000
Tons/Year
Drive 40,000
Miles per Year
In and Out of
Windrows
Source:
City of Bakersfield
Space Savings – Windrow vs. ASP
20’
8’
Large Windrows
22,500 Cubic Yards / Acre / Year
35’
12’
Extended Aerated Static Piles
71,000 Cubic Yards / Acre / Year
Source:
City of Bakersfield
Compost Cap Over Feedstock - ASP
Aeration and VOC Emissions Testing
New Methods of Water Distribution…
Source:
City of Bakersfield
Sprinklers – Keep Compost Cap Moist
o Cheaper than Water
trucks
o Three sprinklers per
pile with automatic
timer
o Water 6 minutes per
hour 12 times per day
in blazing summer
o Compost cap kept
consistently moist
VOC Emission Reductions
1
Windrow VOC
Pounds per Day per Ton Mix
0.9
0.8
ASP VOC
22 Day ASP
Test Period
0.7
0.6
Extrapolated
ASP Data
0.5
0.4
0.3
0.2
0.1
0
0
10
20
30
40
Compost Process Day
50
60
Screening Plastic from Compost
Capturing Plastic Film with Air Flow
Electric Conveyors for Finished Compost
(Copied from mining industry)
Old Tractor Run
Source:
City of Bakersfield
Finished Product
Compost Facility Challenges
(regulatory, economic, and environmental issues)
• Reduce VOC Air Emissions
• Electrify Diesel Equipment
• Compost More with Less Space
• Add Food Waste (without Vectors)
• Save Water