Corrective Actionor

Move to a New Back Yard

Co-authors:

Ken Mason City of Louisville

Dan Peters San Juan Engineering

Paul Bonnici Montgomery Watson Harza

Presented by:

Kevin Clark Pinery Water & Wastewater District

Windrow C omposting

Dew atered S ludge

Finished ProductSOLD

New Am endm entM ateria l

Finished ProductStockpilling

Lab T esting

W indrow Com posting

W indrow & Initia l M ixing Am endm ent

Biosolids AmendmentBiosolids Amendment

++ ==

Press Solids 15% to 20% DryPress Solids 15% to 20% Dry Dried Biosolids 75 % to 80% DryDried Biosolids 75 % to 80% Dry Mixture is Now 40% to 45% Dry Mixture is Now 40% to 45% Dry Low Odor & Ready to CompostLow Odor & Ready to Compost

Winter OperationsWinter Operations

CompostingComposting

Public Education

You Must Believe In Product

You Will Be Tested

Imagine Taking A Gallon Of Effluent Biosolids Present The Same Challenges Plus

a Few Surprises

PUBLIC INPUT1991 to 2000

7 ODOR Complaints

2001

50 ODOR Complaints

2002

9 ODOR Complaints

5 During North Wind Condition

Residential

Users

1998 3 1999 3 2000 30 2001 75 2002 77

(35 new 7 months)

Options

No Change

Use Contractor

Haul off Site

Cover Process

Building

Other

Cost Analysis Per Dry TonCurrent process Contract Hauling Other

Chemical $57.25 $57.25 $57.25Labor $48.10 $24.00 $48.10Lab Testing $7.93 $7.93 $7.93Diesel Fuel $3.07 $0.00 $3.07Electricity $1.27 $1.27 $12.00Hauling @ 18% $0.00 $123.97 $0.00Chemical Cost $0.00 $0.00 $10.00Misc. Tarp,Dist. Sys. $0.00 $0.00 $3.60

Total Cost Per Dry Ton $117.62 $214.42 $141.95Capital Cost $0.00 $0.00 $11,015.00

Annual Operation Cost $23,524.00 $42,884.00 $28,390.00

Total 2001 Cost $23,524.00 $42,884.00 $39,405.00

Weather DataThinkAhead

Temperature

Humidity

Wind Direction

Wind Speed

Precipitation

MOLLY

CREEKSIDE

CHATEAU

NEW SOURCE

X

WWTP

NN

Biofilter Top Soil $110.00Biosolids No ChargeCourse Sand $90.00Lime $325.00Peat Moss $547.00Wood Chips $300.00

Fence $180.00

Blowers $415.00 eachElectrical Equipment $1520.00Piping Material $270.00 1 1/2” Rock $62.00

Project Cost $3,396.00

Air Flow

•FromFrom•AtmosphereAtmosphere

•TOTO•BiofilterBiofilter

•4646ooFF•128128ooFF

Temps Pre Aeration & Post Aeration

160 oF142 oF124 oF112 oF152 oF156 oF

152 oF152 oF136 oF134 oF154 oF168 oF

20 minutes of Aeration Forward & Reverse (3hrs./Day Winter Avg.)

0 65 130 195

Biosolids Temp.

•ODORODOR

Odor Gone Low Wind

Odor Gone High Wind

•ODORODOR

Odor Gone Phase 2

Black Drain PipeMisc. FittingsBark for air DistributionTarp CoversSand Bags

Annual Expense $790.00

Annual Operational Expenses

Screening of Product

<.25”<.25”

<.75”<.75”>

.75”>

.75”

ININ

Finished ProductFinished Product

At the very least a lot more plentiful !

??? Questions ???