MUNICIPAL WASTEWATER
Hayward Marsh Pilot
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5,000gpd Pilot Plant
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Mainstream effluent at 35mg/L NH4-N
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Horizontal flow by gravity - no pumping
2012-2013
Municipal treatments include using zeolite-anammox to remove Total Nitrogen (TN) - primarily in the form of NH4, NO3, and organic N. Typical applications include:
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Ammonia sidestreams from anaerobic digesters (filtrate / centrate)
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Secondary effluents and final effluents from WWTPs
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Water re-use and water recycling
Oro Loma Pilot
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Oro Loma Sanitary District – 14,000 gpd
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Side-stream effluent at 500 mg/L NH4-N
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Cost to treat full flow (0.15 MGD) estimated at $1.1 M
2013-2014
Technical summary
Pilot reactors
Martinez Pilot
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Flow is 35 MGD
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6,000 gpd pilot
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98% NH4 removal
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Treating 25 mg/L NH4 Mainstream effluent
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Aerated reactor
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Water re-use
San Francisco Pilot
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90 L pilot plant
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aerated reactor
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1,700 mg/L sidestream influent.
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Effluent NH4 = 170 mg/L; effluent NO3 = 5 mg/L
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90% TN removal
