The performance of constructed wetland depends upon the types of constructed wetland,
vegetation, applied hydraulic load, and media used in the bed. This paper describes the …

The upflow anaerobic sludge blanket (UASB) reactor has been recognized as an important
wastewater treatment technology among anaerobic treatment methods. The objective of this …

The acute toxicity of five heavy metals to the protozoan community inhabiting the activated
sludge of a waste treatment plant, was determined on the basis of reduction in both cell …

Positive effects of protozoa on carbon mineralization by bacteria are considered here
specifically in the context of waste-water treatment. The following effects are reviewed:(1) …

The aim of this study is to determine the relationship between the ciliate populations density
and effluent quality in activated sludge plants. A total of 231 samples taken at three activated …

Industrial processes often produce wastewaters that resist biological treatment owing to the
unfamiliarity of some components to biological systems. Availability of nutrients determines …

The effectiveness of a previously developed toxicity monitoring method for activated sludge
wastewater treatment employing a bioluminescent bacterium (Shk1) was evaluated in batch …

The effects of wastewater salinity variations on communities of microorganisms taken from
activated sludge were studied. Batch cultures were grown for 96 h at final salt concentrations …

Protozoa constitute a major link between the highly productive and nutrient retaining
microbial loop and the metazoans of the classical food web. Protozoa are efficient at …

The assessment of protozoan populations comprises an important tool in evaluating the
efficiency of the activated sludge process for the treatment of wastewater. In this process …