Endocrine disrupting compounds removal from wastewater, a new challenge

Auriol, M; Filali-Meknassi, Youssef; Tyagi, Rajeshwar Dayal; Adams, Craig D.; Surampalli, Rao Y.

doi:10.1016/j.procbio.2005.09.017

Cited by 350 publications

(167 citation statements)

References 127 publications

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“…A big attention has been paid to endocrine disruptors in municipal waste water, typically caused by low efficiency of WWTP to remove these substances [32]. These substances enter water recipients already in very small concentrations may cause endocrine disruption in aquatic biota such as changes in the ratio of sex of the population and other serious effects, mainly in fish.…”

Section: Chemical and Physical Changesmentioning

confidence: 99%

The Urban Stream Syndrome – a Mini-Review

Komínková¹

2012

TOEBMJ

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This paper reviews various impacts of urbanization on rivers and streams, which lead to symptoms summarized by the general term "urban stream syndrome". Growing areas of impervious surfaces cause deterioration of water recipients flowing through urban areas. The symptoms of deterioration usually include altered chemical parameters of water and sediment, accumulation of priority pollutants in aquatic biota, changes in biological composition of the aquatic biota (lower biodiversity, changing abundance) and altered runoff regime of recipients (artificial floods versus extremely low flows). The paper concludes that restoration is the only way to achieve good ecological status (health) of the waterways. The restoration has to focus on measures to decrease the effective imperviousness and increase the retention and later local use of the water. The paper also highlights that effective management of urban streams includes social, economic, and political dimensions and requires a broader view beyond the traditional stream ecology.

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Section: Chemical and Physical Changesmentioning

confidence: 99%

The Urban Stream Syndrome – a Mini-Review

Komínková¹

2012

TOEBMJ

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“…These compounds are environmental pollutants that may cause dramatic environmental effects such as the feminisation of entire fish populations in contaminated streams even in trace concentrations (Auriol et al 2006;Blánquez and Guieysse 2008). EDCs have been detected in wastewater treatment plants (WWTPs), rivers, groundwaters and landfill leachates at concentrations ranging from nanograms to micrograms per litre (Carballa et al 2005;Joss et al 2006).…”

Section: Introductionmentioning

confidence: 99%

“…estrone and 17b-estradiol) and synthetic steroid estrogen (17a-ethinylestradiol) are the major contributors to the estrogenic activity detected in WWTP effluents (Leusch et al 2005). Moreover, steroid estrogens have been found to be biologically active at concentrations as low as 0.1 ng/l (Auriol et al 2006).…”

Section: Introductionmentioning

confidence: 99%

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Immobilisation of laccase on Eupergit supports and its application for the removal of endocrine disrupting chemicals in a packed-bed reactor

et al. 2011

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Laccase from Myceliophthora thermophila was covalently immobilised on Eupergit C and Eupergit C 250L yielding specific activities of up to 17 and 80 U/g, respectively. Due to its superior activity, Eupergit C 250L was chosen for further research. The somewhat lower catalytic efficiency (based on the ratio between the turnover number and the Michaelis constant, k cat /K M ) of the immobilised enzyme in comparison with that of the free enzyme was balanced by its increased stability and broader operational window related to temperature and pH. The feasibility of the immobilised laccase was tested by using a packed bed reactor (PBR) operating in consecutive cycles for the removal of Acid Green 27 dye as model substrate. High degrees of elimination were achieved (88, 79, 69 and 57% in 4 consecutive cycles), while the levels of adsorption on the support varied from 18 to 6%, proving that dye removal took place mainly due to the action of the enzyme. Finally, a continuous PBR with the solid biocatalyst was applied for the treatment of a solution containing the following endocrine disrupting chemicals: estrone (E1), 17b-estradiol (E2) and 17a-ethinylestradiol (EE2). At steady-state operation, E1 was degraded by 65% and E2 and EE2 were removed up to 80% and only limited adsorption of these compounds on the support, between 12 and 22%, was detected. In addition, a 79% decrease in estrogenic activity was detected in the effluent of the enzymatic reactor while only 14% was attained by inactivated laccase.

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“…It is reported that BPA has been frequently detected in rivers and drinking water and is difficult to remove effectively with traditional methods. 1,2 Nano TiO 2 is an efficient photocatalyst and has attracted much attention with the increasing environmental problems because of its stable chemical properties, non-toxic character and no secondary pollution. 3 However, TiO 2 has a wide band gap energy of about 3.2 eV for the anatase structure and 3.0 eV for rutile structures and thus only a small fraction of the solar spectrum (5 %) is absorbed.…”

Section: Introductionmentioning

confidence: 99%