The adsorption of endocrine-disrupting compounds (EDCs) on carbon nanotubes: effects of algal extracellular organic matter (EOM)

2021 ◽  
Vol 23 (4) ◽  
Author(s):  
Fang Wang ◽  
Qiurong Zhang ◽  
Wei Sha ◽  
Xin Wang ◽  
Manhong Miao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Organic Matter ◽  
Endocrine Disrupting Compounds ◽  
Endocrine Disrupting ◽  
Extracellular Organic Matter

Removal of endocrine disrupting compounds from wastewater using polymer particles

2015 ◽  
Vol 73 (1) ◽  
pp. 176-181 ◽  
Author(s):  
Audrey Murray ◽  
Banu Örmeci ◽  
Edward P. C. Lai
Keyword(s):  
Organic Matter ◽  
Wastewater Treatment ◽  
Natural Organic Matter ◽  
Endocrine Disrupting Compounds ◽  
Treatment Method ◽  
Diverse Range ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Endocrine Disrupting ◽  
Wastewater Samples

This study evaluated the use of particles of molecularly imprinted and non-imprinted polymers (MIP and NIP) as a wastewater treatment method for endocrine disrupting compounds (EDCs). MIP and NIP remove EDCs through adsorption and therefore do not result in the formation of partially degraded products. The results show that both MIP and NIP particles are effective for removal of EDCs, and NIP have the advantage of not being as compound-specific as the MIP and hence can remove a diverse range of compounds including 17-β-estradiol (E2), atrazine, bisphenol A, and diethylstilbestrol. Removal of E2 from wastewater was also tested to determine the effectiveness of NIP in the presence of interfering substances and natural organic matter. Removal of E2 from wastewater samples was high and increased with increasing NIP. NIP represent an effective way of removing a wide variety of EDCs from wastewater.

The impact of alum coagulation on pharmaceutically active compounds, endocrine disrupting compounds and natural organic matter

2013 ◽  
Vol 13 (5) ◽  
pp. 1348-1357 ◽  
Author(s):  
Sabrina Diemert ◽  
Robert C. Andrews
Keyword(s):  
Organic Matter ◽  
Organic Carbon ◽  
River Water ◽  
Natural Organic Matter ◽  
Endocrine Disrupting Compounds ◽  
Pharmaceutically Active Compounds ◽  
Active Compounds ◽  
Endocrine Disrupting ◽  
Grand River ◽  
The Impact

This study assessed the impact of chemical coagulation using alum on the removal of three endocrine-disrupting compounds (EDCs; bisphenol A, clofibric acid and estriol) and nine pharmaceutically active compounds (PhACs; acetaminophen, carbamazepine, diclofenac, gemfibrozil, ketoprofen, naproxen, pentoxifylline, sulfamethoxazole and sulfachloropyridazine). The impact on natural organic matter (NOM) fractions as determined using liquid chromatography–organic carbon detection (LC–OCD; total dissolved organic carbon (DOC), hydrophobic DOC, biopolymers, humic substances, building blocks, low molecular weight neutrals and acids) was also examined. Three test surface waters were included: Lake Ontario, Grand River and Otonabee River water (Ontario, Canada). Gemfibrozil concentrations were reduced in both Otonabee and Grand River waters. Reductions were noted for carbamazepine and (inconsistently) for acetaminophen, and estrone appeared to increase in concentration in Grand River water with increasing alum doses. NOM removal was primarily attributed to the humic fraction, with small reductions in biopolymers in all of the waters studied.

Nanofiltration of endocrine disrupting compounds

2003 ◽  
Vol 3 (5-6) ◽  
pp. 321-327 ◽  
Author(s):  
M. Gallenkemper ◽  
T. Wintgens ◽  
T. Melin
Keyword(s):  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Endocrine Disrupting Compounds ◽  
Municipal Wastewater Treatment ◽  
Water And Wastewater Treatment ◽  
Wide Range ◽  
Endocrine Disrupting ◽  
Municipal Wastewater Treatment Plants ◽  
Set Up

Endocrine disrupting compounds can affect the hormone system in organisms. A wide range of endocrine disrupters were found in sewage and effluents of municipal wastewater treatment plants. Toxicological evaluations indicate that conventional wastewater treatment plants are not able to remove these substances sufficiently before disposing effluent into the environment. Membrane technology, which is proving to be an effective barrier to these substances, is the subject of this research. Nanofiltration provides high quality permeates in water and wastewater treatment. Eleven different nanofiltration membranes were tested in the laboratory set-up. The observed retention for nonylphenol (NP) and bisphenol A (BPA) ranged between 70% and 100%. The contact angle is an indicator for the hydrophobicity of a membrane, whose influence on the permeability and retention of NP was evident. The retention of BPA was found to be inversely proportional to the membrane permeability.

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