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While researching a post for another thread, I stumbled across this stuff. If you've ever wondered what else besides bacteria is growing in the filtration media of our ecosystems, this might be worth a look ...
Cool, huh? ...
FYI
While researching a post for another thread, I stumbled across this stuff. If you've ever wondered what else besides bacteria is growing in the filtration media of our ecosystems, this might be worth a look ...
Organisms in a trickling filter
The organisms that can be found in a trickling filter do not differ much from the ones found in activated sludge. No differences have been found between the bacterial flora of activated sludge and that of trickling filters (Lin, 1984). In activated sludge most are attached to suspended flocs, whereas in a trickling filter they will be attached to the filter bed. Apart from heterotrophic and nitrifying bacteria, they following organisms take part in the purification process (see Mudrack and Kunst (1986), Tri (1975), Fair et al (1968)):
Zooflagellates (Mastigophora), especially in higly loaded systems; Amoebae, different species appear in differently loaded systems; Ciliates, they are very common and they graze on bacteria; There are attached species, like representatives of the genus Vorticella, and free swimming species, belonging to genera like Aspidisca, Paramecium and Euplotes; Nematoda; Diatoms, they usually are present in lightly loaded systems.
Other organisms that are occasionally encountered include crustaceans, mites and insect larvae. The so-called sewage fungus appears only in highly loaded or over loaded systems in significant amounts. This is in fact not a fungus but a filamentous bacteria species from the genus Sphaerotilus.
(A zooflagellate)
(A nematode)
(A stalked cilitate)
(A swimming ciliate)
(An amoeba)
Extracted from:
A biological approach to water purification: I. Theoretical aspects
J.D. van der Toorn (1987)
From: Aquatic Mammals 13(3): 83-92
Anchored Table of Contents
The organisms that can be found in a trickling filter do not differ much from the ones found in activated sludge. No differences have been found between the bacterial flora of activated sludge and that of trickling filters (Lin, 1984). In activated sludge most are attached to suspended flocs, whereas in a trickling filter they will be attached to the filter bed. Apart from heterotrophic and nitrifying bacteria, they following organisms take part in the purification process (see Mudrack and Kunst (1986), Tri (1975), Fair et al (1968)):
Zooflagellates (Mastigophora), especially in higly loaded systems; Amoebae, different species appear in differently loaded systems; Ciliates, they are very common and they graze on bacteria; There are attached species, like representatives of the genus Vorticella, and free swimming species, belonging to genera like Aspidisca, Paramecium and Euplotes; Nematoda; Diatoms, they usually are present in lightly loaded systems.
Other organisms that are occasionally encountered include crustaceans, mites and insect larvae. The so-called sewage fungus appears only in highly loaded or over loaded systems in significant amounts. This is in fact not a fungus but a filamentous bacteria species from the genus Sphaerotilus.
(A zooflagellate)
(A nematode)
(A stalked cilitate)
(A swimming ciliate)
(An amoeba)
Extracted from:
A biological approach to water purification: I. Theoretical aspects
J.D. van der Toorn (1987)
From: Aquatic Mammals 13(3): 83-92
Anchored Table of Contents
Cool, huh? ...
FYI
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