Pseudomonas, and Alcaligenes are among the bacterial species commonly associated with the trickling filter. Within the slime layer, where adverse conditions prevail with respect to growth the filamentous forms Sphaerotilus natans and Beggiatoa will be found. In the lower reaches of the filter, the nitrifying bacteria will be present The fungi present are also responsible for waste stabilization, but their role is usually important only under low-pH conditions. At times, fungi growth can be so rapid that the filter clogs and ventilation becomes restricted. Among the fungi species that have been identified are Fusarium, Mucor, Penicillium, Geotrichum, Sporatichum and various yeasts
Pseudomonas, and Alcaligenes are among the bacterial species commonly associated with the trickling filter. Within the slime layer, where adverse conditions prevail with respect to growth, the filamentous forms Sphaerotilus natans and Beggiatoa will be found. In the lower reaches of the filter, the nitrifying bacteria will be present. The fungi present are also responsible for waste stabilization, but their role is usually important only under low-pH conditions. At times, fungi growth can be so rapid that the filter clogs and ventilation becomes restricted. Among the fungi species that have been identified are Fusarium, Mucor, Penicillium, Geotrichum, Sporatichum, and various yeasts
Algae can grow only in the upper reaches of the filter where sunlight is available. Generally, algae do not take a direct part in waste degradation, but during the daylight hours they add oxygen to the percolating wastewater. The function of protozoa is to feed on the biological films and, as a result, effluent turbidity decreases and the biofilm is maintained in a higher growth state. The higher animals, such as worms, Snails, and insects, feed on the biological film
Algae can grow only in the upper reaches of the filter where sunlight is available. Generally, algae do not take a direct part in waste degradation, but during the daylight hours they add oxygen to the percolating wastewater. The function of protozoa is to feed on the biological films and, as a result, effluent turbidity decreases and the biofilm is maintained in a higher growth state. The higher animals, such as worms, snails, and insects, feed on the biological film