Occurrence and fate of endocrine disrupting chemicals in ASP based sewage treatment plant in Hardwar

2016 ◽  
Vol 74 (5) ◽  
pp. 1039-1050
Author(s):  
Gita Saini ◽  
Shalini Pant ◽  
Tanveer Alam ◽  
A. A. Kazmi
Keyword(s):  
Activated Sludge ◽  
Endocrine Disrupting Chemicals ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Treated Wastewater ◽  
Gas Chromatography Mass Spectrometry ◽  
Ms Analysis ◽  
Prime Concern ◽  
Endocrine Disrupting

The occurrence of emerging contaminants such as endocrine disrupting chemicals (EDCs) in our water resources is of prime concern. With this context, fate and seasonal variation of six EDCs (testosterone, T; progesterone, P; diethyl phthalate, DEP; dibutyl phthalate, DBP; propyl-paraben, PP and butyl-paraben, BP) were assessed throughout the year, i.e. in rainy, winter, spring and summer seasons in the raw, treated wastewater and activated sludge in an activated sludge process (ASP) based sewage treatment plant (STP) located in Haridwar, India. Qualitative and quantitative measurements were performed by gas chromatography-mass spectrometry (GC-MS) analysis. Results indicate that in summer, the examined STP could effectively remove 82.9% of T, 86.4% of P, 95.5% of DEP, 92.4% of DBP, 91.5% of PP, and 89.9% of BP from the wastewater. Among the EDCs considered, higher removal efficiencies were achieved for phthalates in the summer season. GC-MS analysis showed that a small fraction of EDCs was sorbed on the solid fraction of activated sludge. Scanning electron microscopy, energy dispersive X-ray spectroscopy and Fourier transformation infrared spectroscopy analysis were also performed to investigate the occurrence of EDCs in biomass samples. Results of this study also demonstrated that removal efficiency, assessed in terms of physicochemical and microbiological parameters, was maximum in summer and reached minimum in rainy season.

Aerobic degradation of estrogenic alkylphenols by yeasts isolated from a sewage treatment plant

RSC Advances ◽  
2016 ◽  
Vol 6 (86) ◽  
pp. 82862-82871 ◽  
Author(s):  
Ranjith kumar Rajendran ◽  
Shir-Ly Huang ◽  
Chu-Ching Lin ◽  
Roland Kirschner
Keyword(s):  
Endocrine Disrupting Chemicals ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Aerobic Degradation ◽  
Toxic Pollutants ◽  
Endocrine Disrupting ◽  
Long Chain

Long-chain alkylphenols including octylphenol (OP) are well-known toxic pollutants prevailing in the environment due to the massive demand of these chemicals in industry and have been identified as endocrine disrupting chemicals (EDCs).

Investigation of Endocrine Disrupting Chemicals in a Sewage Treatment Plant of Changchun in Frozen Period

2011 ◽  
Vol 281 ◽  
pp. 309-312
Author(s):  
Ying Zi Lin ◽  
Chang Hu Cao ◽  
Jun Yin ◽  
Wu Chao
Keyword(s):  
Low Temperature ◽  
Endocrine Disrupting Chemicals ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Municipal Sewage ◽  
Temperature Conditions ◽  
Sewage Plant ◽  
Effective Removal ◽  
Endocrine Disrupting

For low-temperature conditions, the municipal sewage plant on the low removal efficiency of endocrine disrupting chemicals, We are the investigation of endocrine disrupting chemicals in a sewage plant of Changchun City. The results showed that the water contains contaminants 2,4,6-Tris[Bis(Methoxymethyl)Amino]-1,3,5-Triazine, the substance is endocrine disruptors chemicals, it is more harmful to the environment. In addition, Out of the water contains Triethylphosphate, it is the metabolites of organ phosphorus pesticides, it also has a greater impact on the environment, they should be targeted pollutants, focusing on removal of sewage under low temperature conditions for the effective removal of EDCs to provide theoretical guidance.

scholarly journals Analysis of Phthalate and Priority Phenols from a Wastewater Treatment Plant in Cape Town, South Africa

2017 ◽  
pp. 106
Author(s):  
Olanrewaju Olujimi ◽  
Olalekan Fatoki ◽  
James Odendaal
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Limit Of Detection ◽  
Solid Phase ◽  
Endocrine Disrupting Chemicals ◽  
Treatment Plant ◽  
Treated Wastewater ◽  
Phthalate Ester ◽  
Gas Chromatography Mass Spectrometry ◽  
Endocrine Disrupting

Continuous disposal of endocrine-disrupting chemicals (EDCs) into the environment can lead to serious human health problems and can affect aquatic organisms. A number of investigations suggested that final effluents of wastewater treatment plants are the main source of EDCs into the aquatic environment. A developed analytical method was used for the analysis of priority phenols as tert-butyl derivatives and phthalates in wastewater. Qualitative and quantitative analyses were performed by gas chromatography – mass spectrometry (GC–MS) using DB-5MS column. These compounds were evaluated using solid-phase extraction for raw and treated wastewater from a wastewater treatment plant. Concentrations of analytes ranged from below limit of detection to 570μgL-1 for phenols and below limit of quantification to 796μgL-1 for phthalates. Diethyl phthalate was the most prominent phthalate ester with pentachlorophenol for the corresponding phenol. The average percent removal varied from 52.63 to 100%. The result clearly shows that environmental endocrine disrupting chemicals are not completely removed from treated wastewater.

Behavior of Selected Endocrine Disrupting Chemicals in Sewage Treatment Plant

2010 ◽  
Author(s):  
Xinze Wang ◽  
Jiaming Lu ◽  
Natacha Ollivier ◽  
Anais Saturnino ◽  
Elena Gomez ◽  
...  
Keyword(s):  
Endocrine Disrupting Chemicals ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Endocrine Disrupting

Comparison of the behaviour of selected micropollutants in a membrane bioreactor and a conventional wastewater treatment plant

2004 ◽  
Vol 50 (5) ◽  
pp. 29-36 ◽  
Author(s):  
M. Clara ◽  
B. Strenn ◽  
M. Ausserleitner ◽  
N. Kreuzinger
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Removal Efficiency ◽  
Membrane Bioreactor ◽  
Endocrine Disrupting Chemicals ◽  
Sewage Treatment ◽  
Treatment Plant ◽  
Point Sources ◽  
Treated Wastewater ◽  
Treatment Technique

Micropollutants as pharmaceutical active compounds (PhACs), residuals of personal care products or endocrine disrupting chemicals are of increasing interest in water pollution control. In this context the removal efficiencies of sewage treatment plants (STPs) are of importance, as their effluents are important point sources for the release of those substances into the aquatic environment. Activated sludge based wastewater treatment is the worldwide prevalently used treatment technique. In conventional plants the separation of treated wastewater and sludge occurs via sedimentation. A new development is the application of membrane technology for this separation step. The studies focus on the influence of the solids retention time (SRT) on the removal efficiency, as the SRT is the most important parameter in the design of STPs. A conventional activated sludge plant (CASP) and a membrane bioreactor (MBR) were operated at different SRTs. The substances selected are the antiepileptic carbamazepine, the analgesics diclofenac and ibuprofen, the lipid regulator bezafibrate, the polycyclic musks tonalide and galaxolide and the contraceptive 17α-ethinylestradiole. No significant differences in the removal efficiency were detected. Due to the absence of suspended solids in the MBR effluent, substances with high adsorption potential could be retained to slightly higher amounts.

scholarly journals Degradation of 17β-Estradiol by a Gram-Negative Bacterium Isolated from Activated Sludge in a Sewage Treatment Plant in Tokyo, Japan

2002 ◽  
Vol 68 (4) ◽  
pp. 2057-2060 ◽  
Author(s):  
Katsuhiko Fujii ◽  
Shintaro Kikuchi ◽  
Masataka Satomi ◽  
Noriko Ushio-Sata ◽  
Naoki Morita
Keyword(s):  
Activated Sludge ◽  
Culture Medium ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Gas Chromatography Mass Spectrometry ◽  
Negative Bacterium ◽  
Gram Negative ◽  
Degrading Bacterium ◽  
17Β Estradiol

ABSTRACT A 17β-estradiol (E2)-degrading bacterium was isolated from activated sludge in a sewage treatment plant in Tokyo, Japan. The isolate was suggested to be a new Novosphingobium species. Gas chromatography-mass spectrometry and 1H nuclear magnetic resonance analyses of the metabolites of E2 degradation suggested that no toxic products accumulated in the culture medium.

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