NDLI: Performance review of large scale up-flow anaerobic sludge blanket sewage treatment plants.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Heffernan, B. Van Lier, J. B. Van Der Lubbe, J.
Spatial Coverage	Middle East
Description	Country affiliation: Netherlands Author Affiliation: Heffernan B ( Biothane Systems International, Tanthofdreef 21, 2600 GB Delft, The Netherlands. barry.heffernan@veoliawater.com)
Abstract	This article evaluates the performance of 10 large scale upflow anaerobic sludge blanket (UASB) sewage treatment plants (STP) located in semi-tropical areas, 7 plants were located in Brazil, 2 in India and 1 in the Middle East. In addition to the UASB, essential functional units of the STP which potentially impact on the UASB are also evaluated. Most grit removal systems were performing adequately, however in one plant very little grit was being removed. This could have serious implications for the performance of the plant as in a relatively short period of time the reactors could become full of grit. The performance results obtained in this study (COD, BOD and TSS removal efficiencies) are compared to the results of recent literature publications and also to the results of some early pilot and full scale studies. The results found here are broadly similar to those result reported in the recent literature but show a lower performance in comparison with the early pilot scale plants. Factors such as improper design, poor operating procedures, insufficient maintenance and the presence of high sulphate concentrations have been identified as the main reasons for the lower performance.
File Format	HTM / HTML
ISSN	02731223
Issue Number	1
Journal	Water Science & Technology
Volume Number	63
e-ISSN	19969732
Language	English
Publisher	IWA Publishing
Publisher Date	2011-01-01
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Discipline Hydrology Sewage Water Pollutants Analysis Anaerobiosis Middle East Pilot Projects Evaluation Studies Journal Article
Content Type	Text
Resource Type	Article
Subject	Environmental Engineering Water Science and Technology

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