Margot, Jonas published the artcileTreatment of micropollutants in municipal wastewater: Ozone or powdered activated carbon?, SDS of cas: 117-96-4, the main research area is municipal wastewater micropollutant removal ozonation activated carbon adsorption ecotoxicity; Effluent toxicity; Organic micropollutant; Ozone; Pharmaceutical; Powdered activated carbon; Wastewater treatment.
Many organic micropollutants present in wastewater, such as pharmaceuticals and pesticides, are poorly removed in conventional wastewater treatment plants (WWTPs). To reduce the release of these substances into the aquatic environment, advanced wastewater treatments are necessary. In this context, 2 large-scale pilot advanced treatments were tested in parallel >1 yr at the municipal WWTP of Lausanne, Switzerland. The treatments were (i) oxidation by ozone followed by sand filtration (SF) and (ii) powd. activated carbon (PAC) adsorption followed by either ultrafiltration (UF) or sand filtration. More than 70 potentially problematic substances (pharmaceuticals, pesticides, endocrine disruptors, drug metabolites, and other common chems.) were regularly measured at different stages of treatment. Addnl., several ecotoxicol. tests such as the Yeast Estrogen Screen, a combined algae bioassay, and a fish early life stage test were performed to evaluate effluent toxicity. Both treatments significantly improved the effluent quality. Micropollutants were removed on average >80% compared with raw wastewater, with an average ozone dose of 5.7 mg O3 L-1 or a PAC dose between 10-20 mg L-1. Depending on the chem. properties of the substances (presence of electron-rich moieties, charge, and hydrophobicity), either ozone or PAC performed better. Both advanced treatments led to a clear reduction in toxicity of the effluents, with PAC-UF performing slightly better overall. As both treatments had, on average, relatively similar efficiency, further criteria relevant to their implementation were considered, including local constraints (e.g., safety, sludge disposal, disinfection), operational feasibility, and cost. For sensitive receiving waters (drinking water resources or recreational waters), the PAC-UF treatment, despite its current higher cost, was considered to be the most suitable option, enabling good removal of most micropollutants and macropollutants without forming problematic byproducts, the strongest decrease in toxicity and a total disinfection of the effluent.
Science of the Total Environment published new progress about Adsorptive wastewater treatment. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, SDS of cas: 117-96-4.
Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem