scholarly journals A consideration of timing of flushing flow effective to promote detachment of attached algae in the Miharu Dam.

2017 ◽  
Vol 19 (2) ◽  
pp. 203-210
Author(s):  
Kazuhiro AZAMI ◽  
Namiko KAGEYAMA ◽  
Naoya YAMAUCHI ◽  
Yumi YONAI ◽  
Jiro OKITSU ◽  
...  
Keyword(s):  
2007 ◽  
Vol 51 ◽  
pp. 1213-1218 ◽  
Author(s):  
Yuji TODA ◽  
Yuki TADAKUMA ◽  
Tetsuro TSUJIMOTO

2003 ◽  
Vol 47 (11) ◽  
pp. 195-202 ◽  
Author(s):  
G. Schumacher ◽  
T. Blume ◽  
I. Sekoulov

Attached algae settlement is frequently observed in effluents of wastewater treatment plants at locations with sufficient sunlight. For their growth they incorporate nutrients and the surface of the algal biofilm accumulates suspended solids from the clarified wastewater. During the photosynthesis process of algal biofilms oxygen is produced while dissolved carbon dioxide is consumed. This led to an increasing pH due to the change of the carbon dioxide equilibrium in water. The high pH causes precipitation of dissolved phosphates. Furthermore an extensive removal of faecal bacteria was observed in the presence of algae, which may be caused by the activity of algae. The experimental results indicate the high potential of these attached algae for polishing secondary effluent of wastewater treatment plants. Especially for small wastewater treatment plants a post connected stage for nutrient removal and bacteria reduction can be developed with the aid of an algal biofilm.


1971 ◽  
Vol 177 (1048) ◽  
pp. 295-306 ◽  

An attempt has been made to use the growth rate in culture of some of the larger attached algae for indication of pollution. Ulva lactua has a high potential from this point of view because of the ease with which it can be cultured and also because of its reactions to pollution by sewage. The growth rate of Laminaria saccharina shows a graded response to changes in total medium and physical conditions and to concentrations of added single substances. This species could be a useful pollution indicator, not only because of its sensitivity to changes, but also because of the part it plays in the ecosystems round our coasts.


2016 ◽  
Vol 36 (2) ◽  
Author(s):  
靳明 JIN Ming ◽  
叶碧碧 YE Bibi ◽  
庞燕 PANG Yan ◽  
储昭升 CHU Zhaosheng ◽  
杨琦 YANG Qi
Keyword(s):  

2013 ◽  
Vol 267 ◽  
pp. 11-25 ◽  
Author(s):  
Kyle F. Flynn ◽  
Steven C. Chapra ◽  
Michael W. Suplee

Biologia ◽  
2006 ◽  
Vol 61 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Aloisie Poulíčková ◽  
Miloslav Kitner ◽  
Petr Hašler

AbstractSpring and summer vertical distributions of attached algae were studied on artificial substrates (glass cover slips) in shallow fishponds of different trophic status. Differences were found in colonization process between two fishponds, two seasons and between two sites at each fishpond (central part, fishpond shore). Oligotrophic fishpond U třech krátkých can be characterized by better light conditions and lower temperatures. While equal vertical distribution of periphytic algae was observed at oligotrophic site, their relative cover decreased continuously in spring and strongly in summer with the increasing depth at eutrophic site. Oligotrophic fishpond can be characterized by very slow colonization rate and increasing abundance of Chrysophyceae. On the other hand Cyanobacteria were more frequent in eutrophic fishpond where periphyton displayed high colonization rate. Diatom species richness was the highest at oligotrophic site during spring experiments. The sites near the fishpond shore compared to sites in the central part of the fishpond can be characterized by higher rate of colonization, higher periphyton relative cover, lower proportion of Chrysophyceae and higher proportions of diatoms and cyanophytes indicating probably higher trophic level.


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