Effects of suspended sediment content on biodegradation of three common endocrine disruptors in river water

2009 ◽  
Vol 60 (7) ◽  
pp. 758 ◽  
Author(s):  
Ying Liu ◽  
Weiling Sun ◽  
Min Li ◽  
Jinren Ni
Keyword(s):  
Bisphenol A ◽  
River Water ◽  
Suspended Sediment ◽  
Endocrine Disruptors ◽  
Water Samples ◽  
Bacterial Attachment ◽  
Important Process ◽  
Batch Experiments ◽  
Surface Areas ◽  
Very High

Bisphenol A (BPA), 17β-oestradiol (E2) and 17α-ethynylestradiol (EE2) are common endocrine disruptors (EDs) in river water, and biodegradation is regarded as an important process for their removal from river water. The suspended sediment (SS) content is very high in some rivers, which may affect the biodegradation of these EDs. In this study, the degradation of BPA, E2 and EE2 in river water with different SS contents was investigated using batch experiments. The results show that the biodegradation rates of BPA, E2 and EE2 increase with the SS content in water samples. The half-lives of BPA, E2 and EE2 are 2.44–52.51 days, 0.40–6.38 days and 3.47–25.77 days, respectively, at SS contents ranging from 0 g L–1 to 15 g L–1. Micrographs demonstrate more bacteria in the SS than in the water phase. Higher SS concentrations provide greater surface areas for bacterial attachment and these bacteria apparently accelerate the biodegradation of common EDs.

Removal of Bisphenol A (BPA) in Surface Water by Ozone Oxidation Process

2015 ◽  
Vol 735 ◽  
pp. 210-214 ◽  
Author(s):  
N.A. Ahmad ◽  
M.A. Yuzir ◽  
E.L. Yong ◽  
Norhayati Abdullah ◽  
Mohd Razman Salim
Keyword(s):  
Drinking Water ◽  
High Performance Liquid Chromatography ◽  
Bisphenol A ◽  
River Water ◽  
Water Samples ◽  
High Performance ◽  
Oxidation Process ◽  
Batch Experiments ◽  
Uv Visible ◽  
The Stability

The removal of Bisphenol A in river water can be accomplished with the application of ozone. Ozone is widely used to disinfect drinking water due to its strong oxidizing properties. This study was conducted to investigate the removal of Bisphenol A in different areas of Skudai River. Batch experiments were conducted at initial Bisphenol A concentration of 0.5 mg L-1. The concentrations of Bisphenol A and dissolved ozone were measured using Ultra High Performance Liquid Chromatography (UHPLC) and UV-Visible spectrophotometer respectively. Based on the results obtained the stability of ozone in the water were very fast. Ozonewas quickly decomposed in water samples. The results indicated that the depletion of ozone varied from different dissolved organic carbon (DOC) value of water samples. Concentration of dissolved ozone was reducing rapidly after spiked into high DOC value (9.17 mg L-1) of river water. The results of the study have shown that ozonation could be used to effectively remove the Bisphenol A from water. The ozone depletions in river water at 120 seconds were about 87%-99%.

Measured and Modelled Chlorinated Contaminant Distributions in the St. Clair River Water

1986 ◽  
Vol 21 (3) ◽  
pp. 332-343 ◽  
Author(s):  
C.H. Chan ◽  
Y.L. Lau ◽  
B.G. Oliver
Keyword(s):  
River Water ◽  
Suspended Sediment ◽  
Water Samples ◽  
Concentration Distribution ◽  
Suspended Solids ◽  
Industrial Area ◽  
Concentration Profiles ◽  
Detroit River ◽  
Chemical Partitioning ◽  
Transverse Mixing

Abstract The concentration distribution of hexachlorobutadiene (HCBD), pentachloro-benzene (QCB), hexachlorobenzene (HCB) and octachlorostyrene (OCS) in water samples from transects across the upper and lower St. Clair River and the upper Detroit River were determined on four occasions in 1985. The data show a plume of these contaminants from the Sarnia industrial area. The fluxes and concentration profiles of the contaminants at Port Lambton have been modelled success fully using a simple transverse mixing model. A study on the chemical partitioning between the “dissolved” and “suspended sediment” phases shows that an important contaminant fraction is carried in the river by the suspended solids, particularly for lipophilie compounds such as HCB and OCS,

Pen sensor made with silver nanoparticles decorating graphite-polyurethane electrodes to detect bisphenol-A in tap and river water samples

2020 ◽  
Vol 114 ◽  
pp. 110989 ◽  
Author(s):  
Marina Baccarin ◽  
Mariani A. Ciciliati ◽  
Osvaldo N. Oliveira ◽  
Eder T.G. Cavalheiro ◽  
Paulo A. Raymundo-Pereira
Keyword(s):  
Silver Nanoparticles ◽  
Bisphenol A ◽  
River Water ◽  
Water Samples ◽  
River Water Samples

Sensitive detection of bisphenol A in drinking water and river water using an upconversion nanoparticles-based fluorescence immunoassay in combination with magnetic separation

2018 ◽  
Vol 10 (44) ◽  
pp. 5313-5320 ◽  
Author(s):  
Wei Sheng ◽  
Wenxia Duan ◽  
Yingjie Shi ◽  
Qing Chang ◽  
Yan Zhang ◽  
...  
Keyword(s):  
Drinking Water ◽  
Bisphenol A ◽  
River Water ◽  
Magnetic Separation ◽  
Water Samples ◽  
Sensitive Detection ◽  
Upconversion Nanoparticles ◽  
Fluorescence Immunoassay ◽  
River Water Samples

NaYF4:Yb/Tm upconversion nanoparticles-based fluorescence immunoassay in combination with magnetic separation for detecting bisphenol A in drinking and river water samples.

On-site determination of bisphenol A in river water by a novel solid-state electrochemiluminescence quenching sensor

2017 ◽  
Vol 14 (2) ◽  
pp. 115 ◽  
Author(s):  
Xiaoying Wang ◽  
Yijie Wang ◽  
Meng Jiang ◽  
Yanqun Shan ◽  
Xiaobing Wang
Keyword(s):  
Solid State ◽  
Bisphenol A ◽  
River Water ◽  
Water Samples ◽  
High Sensitivity ◽  
Intensity Change ◽  
Electrospinning Technique ◽  
River Water Samples ◽  
Wide Range

Environmental contextBisphenol A is an endocrine disruptor, which may migrate and transfer to the environment where it presents a potential risk to the health of humans and animals. Herein, we demonstrate that electrospun nanofibers could be used to develop a highly efficient solid-state quenching sensor for on-site determination of bisphenol A in river water samples. The strategy has great potential for routine environmental analyses. AbstractA novel solid-state electrochemiluminescence (ECL) quenching sensor based on luminescent composite nanofibres for detection of bisphenol A (BPA) has been designed. Luminescent composite nanofibres of ruthenium(ii) tris(bipyridine) (Ru(bpy)32+)-doped core–shell Cu@Au alloy nanoparticles (Ru/Cu@Au) mixed with nylon 6 (PA6)–amino-functionalised multi-walled carbon nanotubes (MWCNTs), Ru/Cu@Au-MWCNTs-PA6, were successfully fabricated by a one-step electrospinning technique. The Ru/Cu@Au-MWCNTs-PA6 nanofibres, with a unique 3D nanostructure, large specific surface area and double Ru(bpy)32+-ECL signal amplification, exhibited excellent ECL photoelectric behaviours on a glassy carbon electrode. As a solid-state ECL sensor, the Ru/Cu@Au-MWCNTs-PA6 nanofibres can sensitively detect low concentrations of BPA by monitoring the BPA-dependent ECL intensity change. The detection limit for BPA is 10 pM, which is comparable or better than that in the reported assays. The sensor was successfully applied to on-site determination of BPA in river water samples obtained from eight different sampling sites with good recovery, ranging from 97.8 to 103.4%. The solid-state ECL sensor displayed wide-range linearity, high sensitivity and good stability, and has great potential in the field of environmental analyses.

Double-functionalised magnetic nanoparticles for efficient extraction of bisphenol A from river water

2016 ◽  
Vol 13 (1) ◽  
pp. 43 ◽  
Author(s):  
Yipei Sheng ◽  
Huaqin Guan ◽  
Yanfang Zhang ◽  
Xuemei Zhang ◽  
Qingqing Zhou ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Bisphenol A ◽  
Solid Phase Extraction ◽  
River Water ◽  
Water Samples ◽  
High Performance ◽  
Solid Phase ◽  
Phase Extraction ◽  
River Water Samples ◽  
Pre Treatment

Environmental context Conventional pre-treatment methods are usually ineffective for the extraction of bisphenol A (BPA) from environmental water samples. We report that a novel magnetic nanoparticle with double-functionalisation is an excellent solid-phase adsorbent for extracting BPA from river water samples. This study provides a simple but efficient approach for extraction of low-concentration pollutants from water samples. Abstract In this study, double functionalised magnetic nanoparticles (DFMNPs) for extraction of bisphenol A (BPA) in an aqueous phase were designed and prepared. In the preparation of DFMNPs, amide and pyridine groups were simultaneously introduced into the surface of magnetic nanoparticles. A new dispersed solid-phase extraction (DSPE) method adopting DFMNPs as the adsorbents was developed for separating and enriching BPA from river water samples. This DSPE method showed fast magnetic response, high binding efficiency to target BPA, and short experimental time. The recovery of BPA in spiked river water was 94.4% with the DSPE method, which was much higher than those with traditional solid-phase extraction (SPE) methods. The high performance of DFMNPs on extraction of BPA from river water was attributed to the synergistic function of the amide and pyridine groups. The hydrophilic amide groups caused DFMNPs to disperse well in water, whereas the alkaline pyridine groups bound BPA effectively by ionic bonds. Our DSPE was particularly superior to conventional SPE in the pre-treatment of large-volume water samples as the time taken could be remarkably reduced.

Sign in / Sign up

Export Citation Format

Share Document