Toxicity evaluation of pharmaceutical wastewaters using the alga Scenedesmus obliquus and the bacterium Vibrio fischeri

Yu, Xin; Zuo, Jiane; Tang, Xinyao; Li, Ruixia; Li, Zaixing; Zhang, Fei

doi:10.1016/j.jhazmat.2013.12.012

Cited by 55 publications

(15 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These substances are not routinely monitored because they are often not included in the environmental legislation and the environmental fate is poorly understood or not studied at all (Zenker et al, 2014). Some of these chemicals are poorly removed by the wastewater treatment plants and cannot be completely removed, resulting in the continuous discharge of toxicants to the aquatic environment (Gavrilescu et al, 2014;Yu et al, 2014). The main emission sources of pharmaceuticals antibiotics in urban areas are hospitals and wastewater treatment plants (Lin et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Streptomycin affects the growth and photochemical activity of the alga Chlorella vulgaris

Perales-Vela

García

Gómez-Juárez

et al. 2016

Ecotoxicology and Environmental Safety

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Streptomycin affects the growth and photochemical activity of the alga Chlorella vulgaris

Perales-Vela

García

Gómez-Juárez

et al. 2016

Ecotoxicology and Environmental Safety

View full text Add to dashboard Cite

“…The luminescent bacterium, Vibrio fischeri has been widely applied for the toxicity detection of chemicals, including organics and metals. [1][2][3] Due to its advantages of ease use, low cost and high reproducibility, this biotest has been accepted as a quick method of chemicals toxicities assessment in the environment (named as Microtox ® test), including wastewater effluent, 4 sediment extracts 5 and contaminated groundwater. 6 698 YANG et al…”

Section: Introductionmentioning

confidence: 99%

Comparison of organics and heavy metals acute toxicities to Vibrio fischeri

Yang

Wang

et al. 2016

JSCS

View full text Add to dashboard Cite

Vibrio fischeri bioluminescence inhibition has been widely used to test acute toxicities of metals and organics contaminants. However, the differences of metals and organics acute toxicities to V. fischeri have not been compared. Here, four heavy metals (Zn2+, Cu2+, Cd2+, Cr6+) and five organics (phenol, benzoic acid, p-hydroxy benzoic acid, nitro-benzene and benzene) acute toxicities to V. fischeri were investigated. Heavy metals toxicities to V. fischeri were increased along with the reaction time, while the organics toxicities kept the same level in different reaction times. In order to explain the difference, the relative cell death rate of V. fischeri was detected. In metals toxicities tests, the bioluminescence inhibition rate of V. fischeri was found to be significantly higher than the relative cell death rate (P<0.05), while for the organics toxicities tests, the cell death rate was similar to the bioluminescence inhibition rate. These results indicated that organics acute toxicities to V. fischeri could reflect the death of cell, but metals acute toxicities to V. fischeri may not lead to the death of cell, just represent the bioluminescence inhibition.

show abstract

“…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%

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

View full text Add to dashboard Cite

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.

show abstract

Toxicity evaluation of pharmaceutical wastewaters using the alga Scenedesmus obliquus and the bacterium Vibrio fischeri

Cited by 55 publications

References 20 publications

Streptomycin affects the growth and photochemical activity of the alga Chlorella vulgaris

Streptomycin affects the growth and photochemical activity of the alga Chlorella vulgaris

Comparison of organics and heavy metals acute toxicities to Vibrio fischeri

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

Contact Info

Product

Resources

About