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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 ???