Related Experiment Video
Updated: Aug 8, 2026

Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor
Published on: October 15, 2015
Removal of mutagen precursor from wastewater by activated sludge and oxidation treatment
H Takanashi1, M Mayumi, M Kato
1Department of Bioengineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.
Abstract:
Removal of mutagen precursors from wastewaters was investigated. Removal extent of mutagen precursor was evaluated by the mutagen formation potential (MFP) which is mutagenicity of pollutants capable of forming mutagens when chlorinated under the conditions of water purification processes. 77% of the MFP reduction extent for a wastewater from a university was achieved by activated sludge treatment. However, no significant reduction of the MFP was observed for wastewater from food industry, a landfill leachate and mold extract. The Fenton oxidation treatment and ozone treatment are able to remove mutagen precursors from the mold extract and the wastewater from a university, respectively. 90% of the MFP reduction extent was achieved for the mold extract by the Fenton treatment. 54% of the MFP reduction extent was achieved for a sewage by the ozone treatment. Using the oxidation treatments, biodegradability of mutagen precursors in the mold extract and sewage was improved. From the viewpoint of treatment cost, the oxidation treatments should be oriented to the improvement of biodegradability.
More Related Videos
08:13A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities
Published on: December 25, 2015
09:49Use of a Battery of Chemical and Ecotoxicological Methods for the Assessment of the Efficacy of Wastewater Treatment Processes to Remove Estrogenic Potency
Published on: September 11, 2016
Related Concept Videos
Bioremediation
Microbial Bioremediation of Uranium
Microbial Bioremediation of Hydrocarbons
Microbial Bioremediation of Pesticides
Microbial Wastewater Treatment
Biological Treatment of Effluent and Waste Water