Probabilistic ecological risk assessment of effluent toxicity of a wastewater reclamation plant based on process modeling

Zeng, Siyu; Huang, Yunqing; Sun, Fuwei; Li, Dan; He, Mengchang

doi:10.1016/j.watres.2016.05.039

Cited by 8 publications

(4 citation statements)

References 45 publications

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“…Twenty-two studies apply 16 assays for estrogenicity. 13,25,[28][29][30][31][32]34,[54][55][56][57][58][59]61,62,65,67,[70][71][72]74 On the basis of these studies, the CT already eliminates estrogenicity effectively with a median removal of 91.8% (Table 1), which is in line with previously reported values for a CT. 82−85 Despite this effective removal, the remaining estrogenicity of the effluents (median of 1.77 ng EEQ/L) may still induce adverse effects on organisms in the receiving water with regard to the low predicted no effect concentrations of 0.1 and 2 ng/L for 17α-ethinylestradiol (EE2) and 17β-estradiol (E2), respectively. 86 Both advanced wastewater treatment technologies eliminate the residual estrogenicity (Figure 2).…”

Section: Removal Of In Vitro Toxicitysupporting

confidence: 83%

“…These studies cover 28 end points, including several endocrine end points, induction of xenobiotic metabolism, neurotoxicity, phytotoxicity, oxidative stress response, baseline toxicity, as well as genotoxicity and mutagenicity (Tables S7 and S8). ,,,− ,,− By far the best-studied end point is estrogenicity (22 out of 31 studies), followed by genotoxicity (18), mutagenicity (12), phytotoxicity(11), bacterial toxicity (11), androgenicity (11), antiandrogenicity (9), aryl-hydrocarbon receptor (AhR) activity (8), antiestrogenicity (7), as well as acetylcholinesterase (AchE) inhibition (4) and glucocorticoid and thyroid activity (4). For all other end points, only data from less than four studies was available.…”

Section: Removal Of In Vitro Toxicitymentioning

confidence: 99%

“…Twelve studies used the UmuC assay, which determines the induction of DNA repair mechanisms, to assess genotoxicity of the wastewater. ,,,,,,,,− The extracts of conventionally treated wastewater were genotoxic in the majority of studies. Both advanced wastewater treatment processes lead to a considerable reduction of the genotoxicity.…”

Section: Removal Of In Vitro Toxicitymentioning

confidence: 99%

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Systematic Review of Toxicity Removal by Advanced Wastewater Treatment Technologies via Ozonation and Activated Carbon

Völker

Stapf

Miehe

et al. 2019

Environ. Sci. Technol.

137

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Upgrading wastewater treatment plants (WWTPs) with advanced technologies is one key strategy to reduce micropollutant emissions. Given the complex chemical composition of wastewater, toxicity removal is an integral parameter to assess the performance of WWTPs. Thus, the goal of this systematic review is to evaluate how effectively ozonation and activated carbon remove in vitro and in vivo toxicity. Out of 2464 publications, we extracted 46 relevant studies conducted at 22 pilot or full-scale WWTPs. We performed a quantitative and qualitative evaluation of in vitro (100 assays) and in vivo data (20 species), respectively. Data is more abundant on ozonation (573 data points) than on an activated carbon treatment (162 data points), and certain in vitro end points (especially estrogenicity) and in vivo models (e.g., daphnids) dominate. The literature shows that while a conventional treatment effectively reduces toxicity, residual effects in the effluents may represent a risk to the receiving ecosystem on the basis of effect-based trigger values. In general, an upgrade to ozonation or activated carbon treatment will significantly increase toxicity removal with similar performance. Nevertheless, ozonation generates toxic transformation products that can be removed by a post-treatment. By assessing the growing body of effect-based studies, we identify sensitive and underrepresented end points and species and provide guidance for future research.

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Section: Removal Of In Vitro Toxicitysupporting

confidence: 83%

Section: Removal Of In Vitro Toxicitymentioning

confidence: 99%

Section: Removal Of In Vitro Toxicitymentioning

confidence: 99%

See 1 more Smart Citation

Systematic Review of Toxicity Removal by Advanced Wastewater Treatment Technologies via Ozonation and Activated Carbon

Völker

Stapf

Miehe

et al. 2019

Environ. Sci. Technol.

137

View full text Add to dashboard Cite

show abstract

“…The HQ and SSD methods belong to the group of entropy methods. PERA, which consists of the SSD model and joint probability curve (JPC), is more frequently used to quantitatively evaluate the ecological risk of pollutants (Xu et al 2015;Shi et al 2016;Zeng et al 2016). The advantages and disadvantages of different methods have been briefly discussed in previous studies, but only qualitative, non-comprehensive descriptions have been provided (Yang et al 2007;Xu et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Ecological risk assessment of soil cadmium in China’s coastal economic development zone: a meta-analysis

Sun

Wang

et al. 2020

Ecosyst Health Sustain

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The coastal area of China has faced major strategic planning and environmental pollution, including heavy metals pollution. This study aimed to provide a comprehensive evaluation of the effects of Cd pollution on the ecology in coastal areas of China. A soil Cd pollution database of 300 counties or districts in coastal areas was screened from academic dissertations and academic journal papers. Based on the database, the ecological risk was evaluated using entropy methods and probabilistic ecological risk assessment (PERA), and the advantages and disadvantages of these methods were analyzed. In China's coastal areas, the soil Cd content in 10.33% of the counties was higher than the minimum of risk control value (1.5 mg/kg), and in 4.00% of the counties was higher than the maximum of risk control value (4.0 mg/kg). The ecological risks were highly compatible with national strategic planning areas. Guangxi Province, Zhejiang Province, and Guangdong Province ranked among the top three coastal areas for soil Cd contamination, and the ecological risks were 18.80%, 17.89%, and 15.77% at the maximum no-effect concentration/lowest effect concentration (NOEC/LOEC) level. This study can provide insights to policymakers regarding the protection of ecosystems threatened by heavy metals in the process of regional strategic planning.

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DBP Formation and Control in Water Reuse

Wu,

He,

Xiao

et al. 2024

The Handbook of Environmental Chemistry

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Probabilistic ecological risk assessment of effluent toxicity of a wastewater reclamation plant based on process modeling

Cited by 8 publications

References 45 publications

Systematic Review of Toxicity Removal by Advanced Wastewater Treatment Technologies via Ozonation and Activated Carbon

Systematic Review of Toxicity Removal by Advanced Wastewater Treatment Technologies via Ozonation and Activated Carbon

Ecological risk assessment of soil cadmium in China’s coastal economic development zone: a meta-analysis

DBP Formation and Control in Water Reuse

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