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.

LOCATION

1,270 mi 19 hours 30 minutes

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OMNILIFE SOCCER STADIUM AT GUADALAJARA, MEXICO

Guadalajara

Construction Phase

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OMNILIFE SOCCER STADIUM AT GUADALAJARA, MEXICO

“THE GREEN STADIUM”

WASTEWATER TREATMENT SYSTEM SELECTION CONSIDERATION

• Manufacturer reliability

• Power requirements

• Sludge generation

• Treatment robustness

• Quality Effluent

WASTEWATER TREATMENT UNITS

CONSTRUCTED WETLANDS

SAND FILTERS

TRICKLING FILTERS

• FULL EVENT DESIGN FLOW = 575 m3/d (152,000 GPD)

• EQUALIZED FLOW = 115 m3/d (30,400 GPD)

DESIGN FLOW

1. PRIMARY TREATMENT AND EQUALIZATION

• SETTLING AND ANAEROBIC SLUDGE DIGESTION.

• HRT > 2 DAYS

PRIMARY TREATMENT AND EQUALIZATION TANK CONSTRUCTION

200 mg/L

100 mg/L

MUNICIPAL

STADIUM

NITROGEN CONCENTRATION

BIOLOGICAL TREATMENT 2. TRICKLING FILTERS

• SOLUBLE BOD REMOVAL

• AMMONIUM NITRIFICATION

• AIR FLOW

• SLAUGHING SETTLING

TRICKLING FILTER CONSTRUCTION

BIOFILTER CONSTRUCTION

“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

RSF CONSTRUCTION

5. MECHANICAL FILTRATION AND DISINFECTION

• AGRICULTURAL IRRIGATION

• LANDSCAPE IRRIGATION

• INDUSTRIAL REUSE

• RECREATIONAL REUSE

• AQUIFER REPLENISHMENT

• TOILET FLUSHING REUSE

MECHNICAL FILTRATION AND DISINFECTION

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.

CONTROL PANEL AND TELEMETRY

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

www.biohabitats.com agarrido@biohabitats.com