HYBRID REACTOR AND PROCESS FOR REMOVING SELENIUM

HYBRID REACTOR AND PROCESS FOR REMOVING SELENIUM

A system for treating wastewater containing selenium has a sequencing batch reactor upstream of a fixed film reactor. The sequencing batch reactor may be operated under anoxic conditions while influent is mixed with residual sludge. The SBR reduces total nitrogen, suspended solids, or both. Selenium...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: OWERDIECK Carsten, LIU Minggang, CUMIN Jeffrey Ronald, VICEVIC Glenn, FONSECA Nelson
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:A system for treating wastewater containing selenium has a sequencing batch reactor upstream of a fixed film reactor. The sequencing batch reactor may be operated under anoxic conditions while influent is mixed with residual sludge. The SBR reduces total nitrogen, suspended solids, or both. Selenium is removed in the fixed film reactor by biological reduction to elemental selenium.