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Description: Book cover
Biodiversity Enhances Resistance of Activated Sludge to Toxic Shock Loads
Abstract
This study investigates the relationship between biodiversity and functional resistance of nine activated sludge wastewater treatment plants to three selected toxicants: cupric sulfate (Cu[II]), 3,5-dichlorophenol (3,5-DCP), or 4-nitrophenol (4-NP). Resistance was measured as the 30 min IC50 or the concentration of toxicant that resulted in 50% reduction in oxygen utilization rate (OUR). Biodiversity was assessed using polymerase chain reaction-terminal restriction fragment length polymorphism (PCR-T-RFLP) and PCR-denaturing gradient gel electrophoresis (PCRDGGE) both targeting the 16S ribosomal RNA gene. Statistical analysis of 30 min IC50 and TRFLP data showed a significant positive correlation (P
This study investigates the relationship between biodiversity and functional resistance of nine activated sludge wastewater treatment plants to three selected toxicants: cupric sulfate (Cu[II]), 3,5-dichlorophenol (3,5-DCP), or 4-nitrophenol (4-NP). Resistance was measured as the 30 min IC50 or the concentration of toxicant that resulted in 50% reduction in oxygen utilization rate (OUR)....
Author(s)
Pascal E. SaikalyDaniel B. Oerther
SourceProceedings of the Water Environment Federation
SubjectSession 65 - Advances in Biological Wastewater Treatment
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Jan, 2009
ISSN1938-6478
SICI1938-6478(20090101)2009:12L.4022;1-
DOI10.2175/193864709793953845
Volume / Issue2009 / 12
Content sourceWEFTEC
First / last page(s)4022 - 4032
Copyright2009
Word count102
Subject keywordsBiodiversityfunctional resistance30 min IC50PCRT-RFLPDGGE

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