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ONSITE WASTEWATER NATURAL TREATMENT
AND EFFLUENT REUSE SYSTEM AT THE
OMNILIFE SOCCER STADIUM
IN GUADALAJARA, MEXICO
BIOHABITATS
agarrido@biohabitats.com Santa Fe, New Mexico
ALAN GARRIDO, M.Sc., EI Project Engineer
OBJECTIVES
• To describe operating units of the wastewater treatment
and reuse system
• To present advantages and disadvantages of decentralized
natural systems
• To discuss operating and maintenance culture after 3
years of operations.
OMNILIFE SOCCER STADIUM AT GUADALAJARA, MEXICO
Guadalajara
Construction Phase
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WASTEWATER TREATMENT SYSTEM SELECTION CONSIDERATION
• Manufacturer reliability
• Power requirements
• Sludge generation
• Treatment robustness
• Quality Effluent
• FULL EVENT DESIGN FLOW = 575 m3/d (152,000 GPD)
• EQUALIZED FLOW = 115 m3/d (30,400 GPD)
DESIGN FLOW
BIOLOGICAL TREATMENT 2. TRICKLING FILTERS
• SOLUBLE BOD REMOVAL
• AMMONIUM NITRIFICATION
• AIR FLOW
• SLAUGHING SETTLING
“CONSTRUCTED WETLANDS ARE SYSTEMS BUILT BY HUMANS
DESIGNED TO EMPHASIZE SPECIFIC CHARACTERISTICS OF THIS
ECOSYSTEM TO IMPROVE TREATMENT CAPACITY”
(Kadlec & Wallace, 2009).
3. SUBSURFACE FLOW CONSTRUCTED WETLAND
SUBSURFACE FLOW CONSTRUCTED WETLAND
• LEACHING CHAMBERS
• GEO-TEXTILES
• GEO-MEMBRANES
• GRAVEL
• WETLAND PLANTS
• CONTROL ARM
SUBSURFACE FLOW CONSTRUCTED WETLAND CONSTRUCTION
AREA = 743 M2 (2,437 SQFT) /CELL GRAVEL DEPTH = 0.85 M (<3 FT)
REUSE SYSTEM 4. RECIRCULATION SAND FILTER
• BOD < 10 mg/L
• TN < 10 mg/L
• TSS < 10 mg/L
• FC < 100 MPN/100 mL
5. MECHANICAL FILTRATION AND DISINFECTION
• AGRICULTURAL IRRIGATION
• LANDSCAPE IRRIGATION
• INDUSTRIAL REUSE
• RECREATIONAL REUSE
• AQUIFER REPLENISHMENT
• TOILET FLUSHING REUSE
EFFLUENT QUALITY
PARAMETER UNITS MAX LIMIT RESULTS
2010 RESULTS
2013 GREASE AND OIL mg/L 15 <7.4 9.04
TSS mg/L 20 <5 7 BOD mg/L 20 <1.98 3.96
ARSENIC mg/L 0.4 0.0129 0.0133
CADMIUM mg/L 0.4 <0.02 <0.02 CYANIDE mg/L 3 <0.01 <0.01
COPPER mg/L 6 <0.05 <0.05
CHROMIUM mg/L 1.5 <0.1 <0.1
MERCURY mg/L 0.02 <0.002 <0.002 NICKEL mg/L 4 <0.05 <0.05
LEAD mg/L 1 <0.1 <0.1 ZINC mg/L 20 <0.1 <0.1
HELMINTH EGGS No. Huevos /L 1 <1 <1 FECAL COLIFORMS NMP/100 mL 240 3 <3
SOURCE:
ANASA - Análisis de Agua, S.A. de C.V.
NATURAL SYSTEMS ADVANTAGES
CONSTRUC. ACTIVATED MEMBRANE UNITS WETLAND SLUDGE BIOREACTOR
CAPITAL COST $USD/gallon 5 - 7 8 - 10 7 - 10 SLUDGE GEN. L/m3 0.5 10 8 ENERGY REQ. kWh/m3 0.21 0.9241 1.1351
1. Metcalf & Eddy, 2003
TREATMENT SYSTEM SLUDGE GEN. L/yr
NATURAL SYSTEM 20,988 ACTIVATED SLUDGE 419,750
TREATMENT SYSTEM SLUDGE GEN. kWh/yr
NATURAL SYSTEM 8,815 ACTIVATED SLUDGE 38,785
DECENTRALIZED NATURAL WASTEWATER TREATMENT SYSTEM AT THE
OMNILIFE SOCCER STADIUM CONCLUSIONS
• HABITAT GENERATION
• SITE AESTHETICS
• CARBON SEQUESTRATION
• OXYGEN GENERATION
• LOW ENERGY REQUIREMENTS
• SIMPLE TO OPERATE AND MAINTAIN
• LOW SLUDGE GENERATION
• HIGH WATER QUALITY
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