EurekaMag.com logo
+ Site Statistics
References:
53,214,146
Abstracts:
29,074,682
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Effect of flow rate on biofilm accumulation in open channels



Effect of flow rate on biofilm accumulation in open channels



Water Research 27(3): 355-360



Experiments were carried out to study the effect of flow shear stress on the rate of accumulation of bottom-attached biofilms. Natural harbour water without special nutrient enrichment was circulated through an outdoor open channel, simulating natural river conditions. Biofilm development on small glass plates (15 times 25 mm) placed on the bottom of the channel was monitored through microscopic examination and determination of total carbohydrate by a recently developed biochemical method. Results indicate that biofilm biomass accumulation was substantially reduced as flow shear stress increased and that the maximum accumulation occurred under very low flow conditions.

Accession: 002355870

Download citation: RISBibTeXText

DOI: 10.1016/0043-1354(93)90034-f

Download PDF Full Text: Effect of flow rate on biofilm accumulation in open channels



Related references

Effect of flow rate on growth and oxygen consumption of biofilm in gravity sewer. Environmental Science and Pollution Research International (): -, 2016

The effect of substratum roughness and river flow rate on the development of a freshwater biofilm community. Biofouling, 124: 287-303, 1998

The effect of detachment on biofilm structure and activity: the oscillating pattern of biofilm accumulation. Water Science and Technology 55(8-9): 429-436, 2007

Numerical simulation of biofilm growth in flow channels using a cellular automaton approach coupled with a macro flow computation. Biorheology 50(3-4): 203-216, 2014

Effect of wall shear rate on biofilm deposition and grazing in drinking water flow chambers. Biotechnology and Bioengineering 97(6): 1550-1561, 2007

Analysis of Secondary Current Effect in the Modeling of Shallow Flow in Open Channels. Advances in Water Resources 41(none): 0-48, 2012

Effects of flow rate and chamber position on measurement of stem respiration rate with an open flow system in a Japanese red pine. Forest Ecology and Management 210(1/3): 469-476, 2005

A new buildup biofilm model that mimics accumulation of material in flexible endoscope channels. Journal of Microbiological Methods 127: 224-229, 2016

Biofilm development in a membrane-aerated biofilm reactor: Effect of flow velocity on performance. Biotechnology & Bioengineering 67(4): 476-486, Feb 20, 2000

Relative importance of mean velocity and bed shear on biofilm accumulation in open-channel flows. Water Science & Technology 32(8): 193-198, 1995

Sediment-laden flow in open channels from two-phase flow viewpoint. Journal of Hydraulic Engineering 121(10): 725-0, 1995

Sediment-laden flow in open channels from two-phase flow viewpoint; discussion and reply. Journal of Hydraulic Engineering 123(6): 577-580, 1997

Design of grass-lined open channels Alternative to structural stabilization methods for earth channels exposed to flow only intermittently, used for floodways and drainageways in urban settings. Transactions of the ASAE American Society of Agricultural Engineers 26(4): 1064-1069, 1983

Use of oil bubbles for estimating flow rates in open channels Irrigation water, developing a channel flow meter. AMA agricultural mechanization in Asia Africa and Latin Americamn 13(4): 37-41, 1982