Study on veterinary and human antibiotics in raw and treated water from a French basin

2015 ◽  
Vol 15 (6) ◽  
pp. 1275-1284
Author(s):  
A. Guillon ◽  
N. Noyon ◽  
C. Gogot ◽  
S. Robert ◽  
A. Bruchet ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Surface Waters ◽  
High Performance ◽  
Solid Phase ◽  
Kinetic Constant ◽  
Drinking Water Treatment ◽  
Liquid Chromatography Mass Spectrometry ◽  
Treated Water ◽  
Livestock Density

The aims of this work are to evaluate the presence of antibiotics in surface waters in a French water basin, where the presence of livestock is relatively important, and to understand the behaviour of antibiotics in drinking water treatment plants (DWTPs). Two sampling sites were chosen because of their livestock density and the presence of DWTPs in areas where urban activities are different. A large range of veterinary and human antibiotics were analysed in raw and treated water from the French Seine-Normandy Basin, based on the development of two analytical methodologies using solid-phase extraction and high-performance liquid chromatography-mass spectrometry. Clorsulon (an anthelmintic), fluoroquinolones, macrolides, sulfonamides (such as sulfamethoxazole, sulfadiazine), tetracyclines and trimethoprim were detected in raw surface water. Regarding the efficiency of drinking water treatment, an ozone/granular activated carbon combination proved to be effective in removing most antibiotics except danofloxacin and enrofloxacin which have an ionisable character and insufficient ozonation kinetic constant. Chlorination proved to be ineffective in removing antibiotics passing through the previous stages.

scholarly journals Drinking water treatment by ferrate(VI) and toxicity assessment of the treated water

2016 ◽  
Vol 57 (54) ◽  
pp. 26369-26375 ◽  
Author(s):  
Jia-Qian Jiang ◽  
Hari B.P. Durai ◽  
Michael Petri ◽  
Tamara Grummt ◽  
Rudi Winzenbacher
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Drinking Water Treatment ◽  
Toxicity Assessment ◽  
Treated Water

The Use of Aluminosilicate Sorbent for the Purification of Natural Waters from Heavy Metals

2020 ◽  
Vol 24 (3) ◽  
pp. 19-23 ◽  
Author(s):  
A.S. Kutergin ◽  
T.A. Nedobukh
Keyword(s):  
Heavy Metals ◽  
Drinking Water ◽  
Water Treatment ◽  
Mechanical Strength ◽  
Natural Waters ◽  
Drinking Water Treatment ◽  
Exchange Capacity ◽  
Filtration Process ◽  
Treated Water ◽  
Dynamic Exchange

The possibilities of using natural granular glauconite in standard water treatment schemes have been investigated. Resource tests of the studied material were carried out in dynamics, simulating possible conditions of use. As a result of the experiments, it was established: during the filtration process, alkalization of water occurs, but the result does not exceed pH = 6÷9, which are the norm for drinking water; the use of a sorbent based on natural glauconite does not impair the hardness indicator of the treated water. The dynamic exchange capacity was: for iron – 3.09 mg/g of absorbent, copper – 19.15 mg/g of absorbent, zinc – 4.82 mg/g of absorbent. The resource of the filter was determined with the loading of granulate with a volume of 1 dm3: for iron – 2918 dm3, for copper – 5425 dm3, for zinc – 273 dm3. The mechanical strength acquired by the sorbent as a result of granulation made it possible to wash the load by the countercurrent method, freeing intergranular pores from the sediment accumulated in them. The revealed capabilities of granular glauconite will allow its use in drinking water treatment schemes for purifying natural waters from heavy metals: iron, zinc, copper.

scholarly journals Occurrence and removal of acesulfame and sucralose in the drinking water treatment plants along the Yangtze River

2018 ◽  
Vol 19 (5) ◽  
pp. 1305-1312
Author(s):  
Chen Wang ◽  
Qi Zheng ◽  
Xiaoqiu Yang
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Yangtze River ◽  
High Performance ◽  
High Resolution Mass Spectrometry ◽  
Drinking Water Treatment ◽  
The Yangtze River ◽  
Water Treatment Plants ◽  
Treatment Procedures ◽  
Carbon Filtration

Abstract Acesulfame (ACE) and sucralose (SUC) are ideal sewage markers for drinking water. In this paper, 33 samples were collected from eight cities' drinking water treatment plants (DWTPs) along the Yangtze River to analyse the occurrence and removal of ACE and SUC. These two compounds were determined using ultra-high performance liquid chromatography–high resolution mass spectrometry. The limits of detection for ACE and SUC were 1.75 ng/L and 0.03 ng/L, respectively. The results showed that ACE and SUC existed widely in DWTPs along the Yangtze River. The concentration of ACE was 13–320 ng/L and the concentration of SUC was 200–1,592 ng/L. In general, the concentrations of ACE and SUC increased from upstream to downstream but decreased after water treatment procedures at every DWTP. In most DWTPs, a 9–30% removal of ACE and SUC was achieved using traditional chlorination disinfection technology. Ozonation combined with granular activated carbon filtration techniques had a high removal efficiency (63.8% for ACE and 50.2% for SUC).

scholarly journals Influence of density flow on treated water turbidity in a sedimentation basin with inclined plate settler

2017 ◽  
Vol 17 (4) ◽  
pp. 1140-1148
Author(s):  
K. Takata ◽  
R. Kurose
Keyword(s):  
Drinking Water ◽  
Particulate Matter ◽  
Water Treatment ◽  
Drinking Water Treatment ◽  
Raw Water ◽  
Inclined Plate ◽  
Treated Water ◽  
Sedimentation Basin ◽  
Density Flow ◽  
Upward Velocity

The removal efficiency of particulate matter from a sedimentation basin with an inclined plate settler in drinking water treatment facilities is sometimes reduced by density flow caused by temperature increases in the raw water. In this study, the structure of the density flow and its prevention are investigated by means of three-dimensional computational fluid dynamics (CFD). The results of CFD show that upward velocity is uniform and normal operations are performed before the increase in inlet water temperatures. After the onset of a temperature increase in the raw water, the upward flow velocity on the inclined plate settler increases, especially in the upstream zone of the plate. This velocity increment has a strong correlation with increase in turbidity as a result of the overflow of particulate matter. The effects of the installation of baffle plates on the inclined plate settler to reduce turbidity were explored. The CFD results using baffle plates show a significant decrease in upward velocity on the inclined plate settler. This suggests that baffle plates are effective in suppressing the overflow of particulate matter. To verify the prediction by CFD, baffle plates were installed in a drinking water treatment facility. The results show that the turbidity of treated water was reduced by the proposed procedure.

Evaluation of drinking water treatment processes focusing on natural organic matter removal and on disinfection by-product formation

2002 ◽  
Vol 2 (5-6) ◽  
pp. 459-464 ◽  
Author(s):  
S. Chae
Keyword(s):  
Drinking Water ◽  
Organic Matter ◽  
Water Treatment ◽  
Natural Organic Matter ◽  
High Performance ◽  
Drinking Water Treatment ◽  
Molecular Size ◽  
Product Formation ◽  
Size Exclusion ◽  
Activated Carbon Adsorption

The aim of this study was to characterize and compare natural organic matter (NOM) removal and disinfection by-product (DBP) formation in the drinking water treatment train that can give valuable information, while optimizing the treatment process. In this study, the determination of the hydrophobic (HPO), transphilic (THP) and hydrophilic (HPI) NOM distribution was used in parallel with more related drinking water parameters to compare the selected waters. High-performance size-exclusion chromatography (HPSEC) was applied to evaluate the relative changes of molecular size distribution of NOM in different treatment steps and source waters. This showed that the quantity, speciation and activated carbon adsorption of DBPs could vary not only by water quality, but also by the distribution and properties of the organic molecules that comprise NOM.

Sign in / Sign up

Export Citation Format

Share Document