Kern County Waste Management Department

Douglas E. Landon, Director

California’s Quest to Increase RecyclinCalifornia’s Quest to Increase Recyclingg

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 California’s Quest to Increase RecyclingRecycling

The LegislationThe 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?What has Changed?New Facilities - MRFsNew Facilities - MRFs

What has Changed?What has Changed?InsideInside

What has Changed?What has Changed?OutsideOutside

Compostable Organic WasteCompostable Organic WasteThe Next ChallengeThe Next Challenge

Green WasteWood WasteFood Waste

New ChallengesNew ChallengesOrganicsOrganics

Organics Mixed RecyclablesPutrescible 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 OrganicDiverse Uses for Organic

CompostingComposting

Source: City of Bakersfield

Organic Facilities in Kern CountyOrganic 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 ChallengesCompost Facility Challenges(regulatory, economic, and environmental issues)(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

How toElectrify Windrows?

Load 100,000Tons/Year

Drive 40,000Miles per YearIn and Out ofWindrows

Source: City of Bakersfield

Space Savings – Windrow vs. ASPSpace Savings – Windrow vs. ASP

20’

8’

Large Windrows22,500 Cubic Yards / Acre / Year

Extended Aerated Static Piles71,000 Cubic Yards / Acre / Year

12’

35’

Source: City of Bakersfield

Compost Cap Over Feedstock - ASPCompost Cap Over Feedstock - ASP

Aeration and VOC Emissions TestingAeration and VOC Emissions Testing

New Methods of Water Distribution…New Methods of Water Distribution…

Source: City of Bakersfield

Sprinklers – Keep Compost Cap Moisto 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

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Compost Process Day

Windrow VOC

ASP VOC22 Day ASP Test Period

Extrapolated ASP Data

Screening Plastic from Compost

Capturing Plastic Film with Air Flow

Electric Conveyors for Finished CompostElectric Conveyors for Finished Compost(Copied from mining industry)(Copied from mining industry)

Source: City of Bakersfield

Old Tractor Run

Finished ProductFinished 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