Labscale Anoxic Stabilization Ponds Operated under High Organic Loads: Long Term Effect of Enrichment with Activated Sludge

The addition of acclimatized activated sludge has been suggested as an effective enrichment procedure to increase the biological activity of waste stabilization ponds. This enrichment results in higher degradation rates compared to non enriched stabilization ponds. However, the comparison between en...

Full description

Saved in:
Bibliographic Details
Published inEnvironmental technology Vol. 28; no. 6; pp. 693 - 699
Main Authors Ramos, M. S., Dávila, J. L., Thalasso, F., Guerrero, A. L., Ramírez-López, E. M., Esparza-García, F., Avelar, F. J.
Format Journal Article
LanguageEnglish
Published London Taylor & Francis Group 01.06.2007
Selper
Subjects
Activated sludge
Applied sciences
BIOMASS
Chlorophyll
ENHANCEMENT
Exact sciences and technology
General purification processes
Kinetics
Organic Chemicals - chemistry
Oxygen - chemistry
Oxygen consumption
Pollution
Ponds
Q1
RESPIROMETRY
Sewage
WASTEWATER TREATMENT
Wastewaters
Water Pollutants
Water treatment and pollution
Short term
Activated sludge
Stabilization pond
Respirometry
Biological indicator
Biomass
enhancement
Long term
Wastewater treatment
Biological activity
Waste water
Biological purification
Organic loading
Waste water purification
Online AccessGet full text

Cover

More Information
Summary:The addition of acclimatized activated sludge has been suggested as an effective enrichment procedure to increase the biological activity of waste stabilization ponds. This enrichment results in higher degradation rates compared to non enriched stabilization ponds. However, the comparison between enriched and non enriched ponds has been observed during short term experiments and it is unknown if this enrichment has long-term effect. This paper compares enriched and non enriched experimental ponds over two years of continuous operation. The enriched pond showed a degradation activity constantly twice higher. The biological indicators such as the heterotrophic and facultative plate count numbers, the chlorophyll "a" concentration and the oxygen consumption rate were also constantly higher in the enriched pond. These results suggest that an initial enrichment has a long term enhancement effect on stabilization ponds treating complex wastewaters.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0959-3330
1479-487X
DOI:10.1080/09593332808618829