Ecotoxicological evaluation of wastewater in a municipal WWTP in Lisbon area (Portugal)

Mendonça, E.; Picado, Ana; Paixão, Susana M.; Silva, Luís Manuel; Barbosa, Marta; Cunha, Maria Ana

doi:10.1080/19443994.2013.768021

Cited by 21 publications

(20 citation statements)

References 23 publications

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“…The ALP level in the DEE inlet was significantly higher than the level found in the negative control as expected due to the well-known presence of endocrine disruptors chemicals in sewage (Lindqvist et al 2005;Nakada et al 2006;Ra et al 2011;Melo et al 2013;Mendonça et al 2013). However, the lower ALP level in fishes exposed to the WWTP inlet was not expected.…”

Section: Alkali-labile Phosphate (Alp)contrasting

confidence: 53%

Estrogenicity and Genotoxicity Detection in Different Contaminated Waters

Salomão

Marques

2014

Human and Ecological Risk Assessment: An International Journal

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Owing that Oreochromis niloticus is resistant to different aquatic environments, four contaminated sites were selected: decentralized engineered ecosystem (DEE) and conventional wastewater treatment plants (WWTP); urban lagoon; and gasolinecontaminated marshland. Endocrine disruption was assessed by alkali-labile phosphate (ALP) quantification, genotoxicity by micronuclei frequency, and morphological changes by hepatosomatic and gonadosomatic indexes. The ALP baseline of non-exposed O. niloticus males was low, compared with other fish species in the literature. Endocrine disruption was observed in fish exposed to raw wastewater of WWTP and DEE, discharge point of channeled river in the urban lagoon, and water from gasoline-contaminated marshland. After treatment in the DEE, the endocrine disruption effect was removed. The micronuclei frequency corroborated with the ALP results in most cases and proved to be a useful tool to assess genotoxicity in fish. The exposure time of 15 days was not enough to provoke morphological effects in most samples. However, in all gasoline-contaminated samples, the fishes showed an increase in the hepatosomatic index followed by a decrease in the gonadosomatic index. The tested biomarkers showed feasibility, sensibility, reproducibility, and were complementary in the assessment of chronic ecotoxicity; therefore, we recommend them to compose a suitable protocol for aquatic monitoring programs.

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Section: Alkali-labile Phosphate (Alp)contrasting

confidence: 53%

Estrogenicity and Genotoxicity Detection in Different Contaminated Waters

Salomão

Marques

2014

Human and Ecological Risk Assessment: An International Journal

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“…Acute toxicity evaluation for municipal wastewater has also been conducted in recent years with aquatic organisms, such as luminous bacteria, algae and fish (Mendonca et al, 2013;Ma et al, 2013Ma et al, , 2005. Some investigations revealed that municipal wastewater could induce eutrophication of its receiving water body with the blooming of algae growth (Vargas-Gonzalez et al, 2014;Bayram et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Some investigations revealed that municipal wastewater could induce eutrophication of its receiving water body with the blooming of algae growth (Vargas-Gonzalez et al, 2014;Bayram et al, 2013). Although there are many researches on contaminants removal from wastewater during its treatment process, studies on the toxicity removal of wastewater are still limited (Mendonca et al, 2013;Ma et al, 2013;Zhao et al, 2014;Zhang et al, 2013a). It was illustrated that conventional activated sludge technology used in WWTPs can effectively reduce the toxicity of wastewater to Vibrio fischeri Surujlal-Naicker et al, 2015), and A 2 /O treatment technology could successfully remove the acute toxicity of influent to zebrafish (Zhang et al, 2013a;Vidal-Dorsch et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Any disturbance in algal dynamics may influence the balance of ecosystem it belongs to . Accordingly, algae has been commonly adopted in acute toxicity evaluation for industrial wastewaters such as coking wastewater (Zhao et al, 2014), pharmaceutical wastewater (Yu et al, 2014), kraft mill wastewater (Raptis et al, 2014), washing/ cleaning wastewater (Laohaprapanon et al, 2012), as well as municipal wastewater (Mendonca et al, 2013(Mendonca et al, , 2009.…”

Section: Introductionmentioning

confidence: 99%

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Reduction in toxicity of wastewater from three wastewater treatment plants to alga (Scenedesmus obliquus) in northeast China

Zhang

Sun

Zhou

et al. 2015

Ecotoxicology and Environmental Safety

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The toxicity of municipal wastewater to the receiving water bodies is still unknown, due to the lack of regulated toxicity based index for wastewater discharge in China. Our study aims at gaining insight into the acute toxic effects of local municipal wastewater on alga, Scenedesmus obliquus. Four endpoints, i.e. cell density, chlorophyll-A concentration, superoxide dismutase (SOD) activity and cell membrane integrity, of alga were analyzed to characterize the acute toxicity effects of wastewater from municipal wastewater treatment plants (WWTPs) with different treatment techniques: sequencing batch reactor (SBR), Linpor and conventional activated sludge. Influent and effluent from each treatment stage in these three WWTPs were sampled and evaluated for their acute toxicity. Our results showed that all three techniques can completely affect the algal chlorophyll-A synthesis stimulation effects of influent; the algal cell growth stimulation effect was only completely removed by the secondary treatment process in conventional activated sludge technique; toxic effects on cell membrane integrity of two influents from WWTPs with SBR and conventional activated sludge techniques were completely removed; the acute toxicity on SOD activity was partially reduced in SBR and conventional activated sludge techniques while not significantly reduced by Linpor system. As to the disinfection unit, NaClO disinfection enhanced wastewater toxicity dramatically while UV radiation had no remarkable influence on wastewater toxicity. Our results illustrated that SOD activity and chlorophyll-A synthesis were relatively sensitive to municipal wastewater toxicity. Our results would aid to understand the acute toxicity of municipal wastewater, as well as the toxicity removal by currently utilized treatment techniques in China.

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“…Results of ecotoxicity tests presented Daphnia mobility ranges from 0 to 100% at the untreated and from 15 to 100% after treated (Mendonça et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Untitled

Kocbas¹,

Oral²

2015

Turk. J. Fish. Aquat. Sci.

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Aquatic toxicity of municipal wastewater was evaluated in an acute toxicity test using water flea, Daphnia magna as an freshwater aquatic experimental animal model. Toxicity test were performed on samples of both untreated (raw) and treated wastewaters were collected Manisa municipal effluents. Undiluted untread and treated effluents were very toxic to D. magnaand cause to death of all exposed daphnids. Dilution of wastewaters was observed to decrease percentage of influence of biological toxicity based on dilutional rate. Acute toxic effect of untreated wastewater on D. magna was more than that of treated wastewater. In addition, the longer the period of exposure to D. magna, the more significantly toxic effect increased.Keywords: Water flea, acute toxicity, municipal wastewater. Türkiye Tatlısu Kladoseranları Üzerine Belediye Atıksu Arıtma Tesisisi Atıklarının Toksisite Değerlendirmesinde Bir Test Türü Olarak Daphnia magna ÖzetEvsel atıksuların sucul toksisitesi, bir tatlısu sucul deneysel hayvan modeli olan su piresi Daphnia magna akut toksisite kullanılarak değerlendirildi. Toksisite testleri hem arıtılmamış (ham) ve hem de arıtılmış Manisa evsel atıksuları ile gerçekleştirildi. Hiç seyretilmeyen arıtılmamış ve arıtılmış atıksular D. magna üzerine çok toksik olduğu ve maruz kalan tüm dafnidlerin ölümüne neden oldu. Atıksularda seyrelme yapıldığında seyrelme oranına bağlı olarak biyolojik toksik etkinin azaldığı görüldü. Yine arıtılmamış atıksuların D. magna üzerine akut toksik etkisi arıtılmış atıksulardan daha fazla bulundu. İlave olarak D. magna' nın atıksulara maruz kalma süresi arttıkça toksik atkinin de belirgin bir şekilde artığı bulundu.Anahtar Kelimeler: Su piresi, akut toksisite, evsel atıksu.

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Ecotoxicological evaluation of wastewater in a municipal WWTP in Lisbon area (Portugal)

Cited by 21 publications

References 23 publications

Estrogenicity and Genotoxicity Detection in Different Contaminated Waters

Estrogenicity and Genotoxicity Detection in Different Contaminated Waters

Reduction in toxicity of wastewater from three wastewater treatment plants to alga (Scenedesmus obliquus) in northeast China

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