title: [The toxicity of metal ions on activated sludge and the effect of EDTA addition on the toxicity].
mesh_terms: D004492:Edetic Acid / Q000494:pharmacology*; D007220:Industrial Waste; D008670:Metals / Q000633:toxicity*; D010084:Oxidation-Reduction
chemical_list: D007220:Industrial Waste; D008670:Metals; D004492:Edetic Acid