Journal ArticleDOI
Environmental exposure assessment of fluoroquinolone antibacterial agents from sewage to soil.
Reads0
Chats0
TLDR
Sewage sludge is suggested as the main reservoir of FQ residues and the importance of sludge management strategies to determine whether most of the human-excreted FQs enter the environment is outlined.Abstract:
The behavior of fluoroquinolone antibacterial agents (FQs) during mechanical−biological wastewater treatment was studied by mass flow analysis. In addition, the fate of FQs in agricultural soils after sludge application was investigated. Concentrations of FQs in filtered wastewater (raw sewage, primary, secondary, and tertiary effluents) were determined using solid-phase extraction with mixed phase cation exchange disk cartridges and reversed-phase liquid chromatography with fluorescence detection. FQs in suspended solids, sewage sludge (raw, excess, and anaerobically digested sludge), and sludge-treated soils were determined as described for the aqueous samples but preceded by accelerated solvent extraction. Wastewater treatment resulted in a reduction of the FQ mass flow of 88−92%, mainly due to sorption on sewage sludge. A sludge-wastewater partition coefficient (log Kd ∼ 4) was calculated in the activated sludge reactors with a hydraulic residence time of about 8 h. No significant removal of FQs occur...read more
Citations
More filters
Journal ArticleDOI
Occurrence of pharmaceutical compounds in urban wastewater: Removal, mass load and environmental risk after a secondary treatment—A review
TL;DR: This analysis shows that the highest amounts discharged through secondary effluent pertain to one antihypertensive, and several beta-blockers and analgesics/anti-inflammatories, while the highest risk is posed by antibiotics and several psychiatric drugs and analgesic/ anti- inflammatories.
Journal ArticleDOI
Urban wastewater treatment plants as hotspots for the release of antibiotics in the environment: a review
I. Michael,Luigi Rizzo,Christa S. McArdell,Célia M. Manaia,Christophe Merlin,Thomas Schwartz,Christophe Dagot,Despo Fatta-Kassinos +7 more
TL;DR: The aim of the present paper is to critically review the fate and removal of various antibiotics in wastewater treatment, focusing on different processes (i.e. biological processes, advanced treatment technologies and disinfection) in view of the current concerns related to the induction of toxic effects in aquatic and terrestrial organisms.
Journal ArticleDOI
Guidelines for the use and interpretation of adsorption isotherm models: A review.
TL;DR: Criteria for choosing the optimum isotherm model is established through a critical review of different adsorption models and the use of various mathematically error functions such as linear regression analysis, nonlinear regressionAnalysis, and error functions for adsorption data optimization.
Journal ArticleDOI
Fate and distribution of pharmaceuticals in wastewater and sewage sludge of the conventional activated sludge (CAS) and advanced membrane bioreactor (MBR) treatment
TL;DR: The results obtained for the solid phase indicated that MBR wastewater treatment yielding higher biodegradation rate could reduce the load of pollutants in the sludge, and sorption to sludge could be a relevant removal pathway only for several compounds.
Journal ArticleDOI
The occurrence of antibiotics in an urban watershed: from wastewater to drinking water.
TL;DR: Investigation within watersheds of South-East Queensland, Australia found the presence of 28 antibiotics in three hospital effluents, five wastewater treatment plants (WWTPs), six rivers and a drinking water storage catchment was investigated, with further evidence that WWTPs are an important source of antibiotics to streams.
References
More filters
Journal ArticleDOI
Pharmaceuticals and personal care products in the environment: agents of subtle change?
TL;DR: This review attempts to synthesize the literature on environmental origin, distribution/occurrence, and effects and to catalyze a more focused discussion in the environmental science community.
Journal ArticleDOI
Occurrence of drugs in German sewage treatment plants and rivers
TL;DR: In this article, the occurrence of 32 drug residues belonging to different medicinal classes like antiphlogistics, lipid regulators, psychiatric drugs, antiepileptic drugs, betablockers and β 2 -sympathomimetics as well as five metabolites has been investigated in German municipal sewage treatment plant (STP) discharges, river and stream waters.
Journal ArticleDOI
Sorption of veterinary pharmaceuticals in soils: a review.
TL;DR: The compilation of sorption coefficients to soil solids (Kd,solid) demonstrates that these chemicals display a wide range of mobility, and suggests that mechanisms other than hydrophobic partitioning play a significant role in sorption of VPs.
Journal ArticleDOI
Polar drug residues in sewage and natural waters in the state of Rio de Janeiro, Brazil
TL;DR: The drug residues of lipid regulators, anti-inflammatories and some drug metabolites have been detected in raw sewage, treated waste water and river water in the state of Rio de Janeiro, Brazil and as a consequence of the incomplete removal of these residues during passage through a STP, rivers were also found to be contaminated.
Journal ArticleDOI
Environmental exposure and risk assessment of fluoroquinolone antibacterial agents in wastewater and River water of the Glatt Valley Watershed, Switzerland
TL;DR: The risk quotients obtained suggest a low probability for adverse effects of the occurring FQs, either on microbial activity in WWTPs or on algae, daphnia, and fish in surface waters, following the recommendations of the European guidelines or draft documents.