title: An ATP luminescence method for direct toxicity assessment of pollutants impacting on the activated sewage sludge process.
abstract: An ATP luminescence method was used to determine the toxicity of three reference toxicants to two sources of domestic activated sludge, and an activated sludge from a laboratory model plant. Repeatability in the ATP test was demonstrated for Cr (as K2Cr2O7), Zn (as ZnSO4 x 7H2O), and 3,5-dichlorophenol (3,5-DCP) using each source of activated sludge. The three sources of sludge showed sensitivity to Cr and 3,5-DCP, and insensitivity to Zn using the ATP luminescence method. Sludge source did not appear to effect test response. The toxic response to 3,5-DCP in model and domestic activated sludge was shown to be dependent on sludge solid concentration (measured as total suspended solids, gTSS(-1). It is recommended that a standard solids concentration is used during toxicity evaluation.
authors: School of Life Sciences, Napier University, Edinburgh, Scotland, UK.
authors: David J B
authors: DJ
authors: Dalzell
authors: Nick
authors: N
authors: Christofi
mesh_terms: D000255:Adenosine Triphosphate / Q000737:chemistry*; D001419:Bacteria / Q000187:drug effects; D002733:Chlorophenols / Q000032:analysis / Q000633:toxicity; D002857:Chromium / Q000032:analysis; D008163:Luminescent Measurements; D012680:Sensitivity and Specificity; D012722:Sewage / Q000737:chemistry*; D018675:Toxicity Tests / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000633:toxicity*; D015032:Zinc / Q000032:analysis
chemical_list: D002733:Chlorophenols; D012722:Sewage; D014874:Water Pollutants, Chemical; D002857:Chromium; D000255:Adenosine Triphosphate; C116190:3,5-dichlorophenol; D015032:Zinc