Post-treatment of UASB reactor effluent in an integrated duckweed and stabilization pond system

Peter Van Der Steen, Asher Brenner, Joost Van Buuren, Gideon Oron

Research output: Contribution to journalArticlepeer-review

72 Scopus citations

Abstract

Post-treatment of effluent from an Upflow Anaerobic Sludge Blanket (UASB) reactor, that was fed with domestic sewage, was conducted in an integrated pond system to remove bacterial pathogen and further polishing of effluent quality. Rapid and efficient pathogen removal can be achieved in shallow stabilization ponds but their effluent biochemical oxygen demand and total suspended solids was relatively high, due to the presence of algae. Passing stabilization pond effluent through the duckweed ponds was expected to remove algae due to reduced light penetration. Duckweed ponds have revenue generating potential since the produced biomass can be used as animal fodder. However, when applied separately, their pathogen removal is poor.

Original languageEnglish
Pages (from-to)615-620
Number of pages6
JournalWater Research
Volume33
Issue number3
DOIs
StatePublished - 1 Jan 1999

Keywords

  • Duckweed ponds
  • Effluent reuse
  • Fecal coliforms
  • Pathogens
  • Stabilization ponds
  • UASB reactor
  • Wastewater treatment

ASJC Scopus subject areas

  • Ecological Modeling
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution

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