Impact of Wastewater Treatment Plant Discharge on Enzyme Activity in Freshwater Sediments

The biological self-purification processes are a central point for the ecological states of rivers. The degradation efficiency of pollutants is mainly due to the microflora and can be detected with enzyme-activity tests. Extracellular-enzyme activity of freshwater sediments was measured, in a microc...

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Veröffentlicht in:	Ecotoxicology and environmental safety 1998-05, Vol.40 (1-2), p.154-159
Hauptverfasser:	Montuelle, B., Volat, B.
Format:	Artikel
Sprache:	eng
Schlagworte:	Aminopeptidases - metabolism Animal, plant and microbial ecology Applied ecology Biodegradation, Environmental Biological and medical sciences Ecotoxicology, biological effects of pollution Environmental Monitoring - methods Fresh water environment Fundamental and applied biological sciences. Psychology Glucosidases - metabolism Industrial Waste - adverse effects Soil Microbiology Water Pollutants, Chemical - adverse effects
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Zusammenfassung:	The biological self-purification processes are a central point for the ecological states of rivers. The degradation efficiency of pollutants is mainly due to the microflora and can be detected with enzyme-activity tests. Extracellular-enzyme activity of freshwater sediments was measured, in a microcosm, versus different pollution levels caused by organic wastewater treatment plant (WTP) discharges. Biochemical evaluation ofVmaxvalues for each exoenzyme appears to be a function of the organic matter content of the WTP effluent (Fig. 2). Glucosidase and peptidase reveal a significant negative correlation (respectively,r=0.99, withP
ISSN:	0147-6513 1090-2414
DOI:	10.1006/eesa.1998.1656