HomeMy WebLinkAboutITEM 20A - Operations Presentation I Lai
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Orange CountySanitation District
Wastewater Treatment Operation
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OCSD Service Area
• 3rd largest wastewater treatment agency
west of the Mississippi
• 479 square miles of service area
• 2.6 million population
• 396 miles of trunk sewer I
lip
• 20 cities, 4 special districts
2 treatment facilities �
• 15 r!I pump stations
• 1850 million gallons of wastewater per day
• Guinness World Record holder! - • - •
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Reclamation f• to
Plant No. 1 irvino
Pacific Treatment
Ocean o o _
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Plant No. 2
Water Reclamation Process
Influents water preliminary water Primary water Secondary
Residential, Industrial Treatment = Treatment
and Commercial �,77 Treatment
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Primary Sludge
Resource Recovery water
of Solids Secondary
Sludge
Biosolids
Dewatered Biosolids Groundwater
1110 Replenishment System
- i (GWRS) or Ocean
JCompost & Land
�. Application
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Treatment Plant No. 2
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lift
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Metering and Diversion Structure
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Plant 1 Metering and Diversion Structure
Preliminary Treatment
Barscreen Grit Chamber
grit chamber
raw sewage � . . •. .
. sewage with
grit removed
grit removed
periodically
from collection
trap
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Primary Treatment
Rectangular Clarifier
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Circular Clarifier ,
'lilt
t jib'
s� 1
lot
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Secondary Treatment
Activated Sludge Process
Oxic Zone 3B
Anaerobic Aerobic
Secondary clarifier
Influent Effluent
Return activated sludge _
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Waste 'r
activated
sludge
Trickling Filter
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Plant 1 Secondary Treatment
Secondary Clarifier
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i—1-Secondary Treatment (Cont.)
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Secondary Clarifier
Effectiveness of Water Treatment
Primary Secondary
Raw Sewage Treated Effluent Treated Effluent
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Dewatering Operation
Belt Filter Press
(Current)
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iiii :ri► �1 - "` Plant 2 Belt Filter Presses
- 1
Centrifuge System
future in 2 019
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Plant 1 Centrifuges
Biosolids Allocations
18% Compost
IM.MIM.MIM.MI Liberty Compost
CA 142 tons/day, 40 trucks/week NV AZ
36% Compost
Kern Synagro — Nursery Products
County 285 tons/day, 80 trucks/week
Fail-safe Back-up
Compost/Landfill San Bernardino
County
Synagro -- South Kern Los Angeles Fail-safe Back-up
County 5% Compost Compost/Landfill
IERCA-- Inland Empire
O e 36 tons/day. 10 trucks/%veek Synagro —AZ Soils
Co La Paz
OCSp Riverside
Phoenn•
County
San Diego Yuma
Fail-safe Back-up County County
Compost/Landfill
OCWR -- Prima Deshecha 41% Feed and Seed Crops
Tule Ranch --AgTech
321 tons/day, 90 trucks/week
Allocations Based on:
784 Tons per day
220 Trucks per week
100% of the solids are reclaimed for beneficial use
Central Generation Engines
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Plant 2 Central Generation Engines
2017-18 Operation Expenses
FY 17/18 OPERATION BUDGET: $59.5 MILLION
Outfall
3%
Odor Control
4%
Preliminary/Primary
20%
Secondary
16%
Solids Production &
Hauling
57%