Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 354374
Title The effects of operational and environmental variations on anaerobic wastewater treatment systems: A review
Author(s) Leitao, R.; Haandel, A.C. van; Zeeman, G.; Lettinga, G.
Source Bioresource Technology 97 (2006)9. - ISSN 0960-8524 - p. 1105 - 1118.
Department(s) Sub-department of Environmental Technology
Publication type Refereed Article in a scientific journal
Publication year 2006
Keyword(s) fluidized-bed reactor - treatment-plant - uasb reactors - shock loads - sewer systems - 1st flush - microbial methanification - transient-behavior - mass-transfer - steady-state
Abstract With the aim of improving knowledge about the stability and reliability of anaerobic wastewater treatment systems, several researchers have studied the effects of operational or environmental variations on the performance of such reactors. In general, anaerobic reactors are affected by changes in external factors, but the severity of the effect is dependent upon the type, magnitude, duration and frequency of the imposed changes. The typical responses include a decrease in performance, accumulation of volatile fatty acids, drop in pH and alkalinity, change in biogas production and composition, and sludge washout. This review summarises the causes, types and effects of operational and environmental variation on anaerobic wastewater treatment systems. However, there still remain some unclear technical and scientific aspects that are necessary for the improvement of the stability and reliability of anaerobic processes
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