October 16, 2017 Sustainable Conservation helps California thrive - - PowerPoint PPT Presentation

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COMPOST: ENHANCING THE VALUE OF MANURE October 16, 2017 Sustainable Conservation helps California thrive by uniting people to solve the toughest challenges facing our land, air, and water. AIR WATER GREENHOUSE QUALITY QUALITY GASES

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COMPOST: ENHANCING THE VALUE OF MANURE

October 16, 2017

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Sustainable Conservation helps California thrive by uniting people to solve the toughest challenges facing our land, air, and water.

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WATER QUALITY AIR QUALITY GREENHOUSE GASES

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QUALI TY W ATER

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Nutrient imbalance threatens water quality.

N N N

COWS STORAGE FEED

run-off, leaching

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I s com post a viable solution?

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W ATER QUALI TY

exports

AI R QUALI TY GREENHOUSE GASES SOI L HEALTH

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C O M P O S T : E N H A N C IN G T H E V A L U E O F M A N U R E

A n a s s e s s m e n t o f th e e n v iro n m e n ta l, e c o n o m ic , re g u la to ry , a n d p o lic y

p p o rtu n itie s o f in c re a s in g th e m a rk e t fo r m a n u re c o m p o s t

M A Y 2 0 1 7 S u s ta in a b le C o n s e rv a tio n

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Findings:

Environmental
Economic
Regulatory
Policy

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E NVIR ONME NTAL

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W ATER QUALI TY GREENHOUSE GASES AI R QUALI TY SOI L HEALTH

FEED STATI C VS. w i n d r o w exports

■ IfR J m w f' 1 J

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Housing ST Processing LT Processing Storage Use

Milk Parlor

Windrow Compost

Barn Corral

Piles

Gravity Separation

CH4

Lagoon

CH4

Flood Irrigation

Mech. Separation

Land Application

CH4 (?) N2O (?) WQ-N (?) NH3 (?) VOCs (?) CH4 (?) N2O (?) WQ-N (?) NH3 (?) VOCs (?) CH4 (?) N2O (?) WQ-N (?) NH3 (?) VOCs (?)

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Housing ST Processing LT Processing Storage Use

Piles

CH4 (?) N2O (?) WQ-N (?) NH3 (?) VOCs (?)

Land Application

CH4 (?) N2O (?) WQ-N (?) NH3 (?) VOCs (?)

Milk Parlor Barn Corral Gravity Separation

CH4

Lagoon

CH4

Flood Irrigation

Mech. Separation

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CO2 CH4 N2O

GREENHOUSE GASES

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WATER QUALITY

N

Source: EPA

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SOI L HEALTH

S tructure B ulk dens ity Water retention Organic matter

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AIR QUALITY

VOC NH3

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SH

N

AQ

GHG

WQ

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E C ONOMIC

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Demand Forecast Looks Favorable

PROS

Strong and growing

demand

Manure compost

seen as premium

fewer contaminants
Logistical advantage
ver municipal

CONS

Higher salt content

than greenwaste

Supply chain

restrictions

not science-based

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Supply

Currently Unclear

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PROS

Consistent feedstock
1.5MM cows ≈ 93k

tons manure daily

Significant amount
5% manure ≈ 1.9MM

yd3 compost

Economically viable

Supply Potential is Significant, Consistent

CONS

Permitting confusion

hindering supply

Market infrastructure

underdeveloped

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R E GULATOR Y

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Lack of alignment causes confusion

Different agencies use different:

Units/measures
Definitions
Monitored materials
Thresholds
Import/export restrictions

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Lack of clarity creates uncertainty

CalRecycle: LEA interpretations
SJVAPCD: BACT requirements
CVRWQCB: composting & Dairy General

Order

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POLIC Y

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Manure Compost Can Help Achieve Policy Goals

SB 1383 / Short-Lived Climate Pollutant

Strategy

Alternative Manure Management Program
Healthy Soils Initiative
AB 1045

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Key Takeaways

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Composting manure beneficial itself, much more so combined with other practices

Environmental, operational, economic

Market ripe, need to address a few barriers

Ensure quality control of final compost
Establish BMPs for compost use, esp. NMPs
Better align permitting
Ensure RWQCB Dairy General Order reflects

water quality benefits of composting manure

Clarify & communicate SJVAPCD BACT

requirements

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suscon.org/composting-dairy-manure Ryan Flaherty rflaherty@suscon.org