Effects of municipal wastewater treatment plant effluent quality on aquatic ecosystem organisms

Pereao, Omoniyi; Akharame, Michael Ovbare

doi:10.1080/10934529.2021.2009730

Cited by 14 publications

(20 citation statements)

References 43 publications

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“…Palli et al [5] did not observe any evident correlation between the season and wastewater toxicity in the Italian full-scale WWTPs. Vasquez and Fatta-Kassinos et al [16] reported the increase in toxicity of wastewater towards P. subcapitata in summer compared to winter, while Pereao et al [18] found lower toxicity of wastewater towards P. subcapitata in summer than in winter. It shows that the results of ecotoxicity tests of wastewater to algae were strongly dependent on the WWTP under study, and it is difficult to generalize the effect of weather conditions on wastewater toxicity.…”

Section: Effect On Algaementioning

confidence: 98%

“…A wide variety of organisms were used for the evaluation of wastewater toxicity in the full-scale WWTPs (Table S1). Aquatic organisms belonging to bacteria, algae and crustaceans dominated in these tests [10][11][12][13][14][15][16][18][19][20][21][22][23][24][26][27][28]. Apart from those, protozoa [10,14,18,19], fish [12,21], snails [13], worms [13] and aquatic plants [22] were also employed in the assessment of wastewater toxicity.…”

Section: Organisms and Tests Used For Evaluation Of Wastewater Toxicitymentioning

confidence: 99%

“…Aquatic organisms belonging to bacteria, algae and crustaceans dominated in these tests [10][11][12][13][14][15][16][18][19][20][21][22][23][24][26][27][28]. Apart from those, protozoa [10,14,18,19], fish [12,21], snails [13], worms [13] and aquatic plants [22] were also employed in the assessment of wastewater toxicity. Typically, terrestrial species were used as model organisms in about 8% of the studied works [5,22].…”

Section: Organisms and Tests Used For Evaluation Of Wastewater Toxicitymentioning

confidence: 99%

“…The results of these tests (e.g., the effect concentration EC50 or the lethal concentration LC50) are often recalculated to toxic units (TU) in order to classify the potential toxicity of wastewater. In 2003, Persoone et al [17] introduced the classification of the water and wastewater toxicity that became the most commonly used system in the last two decades [12,[17][18][19][20][21]. This classification is the result of the international cooperation between the Flemish community in Belgium and the countries of Central and Eastern Europe [17].…”

Section: Introductionmentioning

confidence: 99%

“…The assessment of wastewater toxicity is still drawing the attention of scientists, who are continually publishing papers on this subject in the latest years of 2019-2021 [6,10,14,18,19], and practitioners, who need knowledge of the latest results and advances in this area. In order to check the last achievements of the potential impact of wastewater on biota regarding the species level, the papers published between 2011 and 2021 were analyzed and compared in this work.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Ecotoxicity of Wastewater from the Full-Scale Treatment Plants

Liwarska-Bizukojć

2022

Water

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In this work, the influence of wastewater from full-scale wastewater treatment plants (WWTPs) on living organisms and aquatic and soil biota were reviewed and presented. Moreover, the methods and model organisms used in testing the ecotoxicity of wastewater were shown. It was found that wastewater usually affected the biochemical activity and growth of organisms such as bacteria, algae and protozoa. They contributed to the immobilization and death of inter alia crustaceans and fishes. The values of degree of inhibition or lethality widely varied dependent on the type of wastewater, the sampling point (influent or effluent) and the model organisms applied in the biotests. Thus, a battery of ecotoxicity tests using model organisms of different sensitivities should be employed. So far, bacteria (e.g., Vibrio fischeri), green microalgae (e.g., Raphidocelis subcapitata) and crustaceans (Daphnia magna) have been frequently used organisms in the biological assessment of wastewater. They were applied in almost half (bacteria) or more than half (microalgae, crustaceans) of papers analyzed in this study. In almost all studies, the reduction of wastewater toxicity after treatment processes was found. It was proven that the conventional activated sludge systems were efficient in the removal of wastewater toxicity from both municipal and industrial wastewater, while the tertiary stage of treatment, in particular chlorination or ozonation, contributed to the increase in wastewater toxicity.

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Section: Effect On Algaementioning

confidence: 98%

Section: Organisms and Tests Used For Evaluation Of Wastewater Toxicitymentioning

confidence: 99%

Section: Organisms and Tests Used For Evaluation Of Wastewater Toxicitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaluation of Ecotoxicity of Wastewater from the Full-Scale Treatment Plants

Liwarska-Bizukojć

2022

Water

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The potential ecological risk of veterinary pharmaceuticals from swine wastewater on freshwater aquatic environment

Udebuani

Pereao

Akharame

et al. 2023

Water Environment Research

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The impact of pharmaceutical residue transport in the aquatic ecosystem has become an increasing subject of environmental interest due to the inherent bioactivity of trace levels of antibiotics and the negative environmental and public health impact. In this study, three veterinary pharmaceuticals including tetracycline, ivermectin, and salicylic acid were investigated in a piggery effluent from Western Cape, South Africa. Three freshwater organisms' taxonomic groups (Pseudokirchneriella subcapitata, Daphnia magna, and Tetrahymena thermophila) were used to determine the ecological risk of different treated piggery effluent concentration range of 1%, 10%, and 20% and a cocktail mixture of veterinary pharmaceuticals of environmental concerns. The average concentration of veterinary pharmaceuticals was in the range of 47.35, 7.19, and 1.46 μg L À1 for salicylic acid, chloro-tetracycline, and ivermectin, respec-

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Anaerobic treatment removing tetrabromobisphenol A and biota safety: How do tropical aquatic species respond to effluent toxicity over short‐ and long‐term exposures?

Bernegossi,

Castro,

Felipe

et al. 2024

Water Environment Research

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Wastewater containing tetrabromobisphenol A (TBBPA), a commonly used flame retardant found in wastewater, can present significant toxic effects on biota, yet its impact on tropical freshwater environments is not well understood. This study explores the effectiveness of two independent anaerobic treatment systems, the acidogenic reactor (AR) and the methanogenic reactor (MR), for the ecotoxicity reduction of TBBPA‐rich wastewater in four tropical freshwater species. Despite presenting good physicochemical performance and reduced toxicity of the influent for most species, AR and MR treatments remain acute and chronic toxicity. Overall, MR exhibited greater efficacy in reducing influent toxicity compared with AR. TBBPA bioaccumulation was observed in Chironomus sancticaroli after short‐term exposure to 100% MR effluent. Multigenerational exposures highlighted changes in the wing length of C. sancticaroli, showing decreases after influent and AR exposures and increases after MR exposures. These findings underscore the need for ecotoxicological tools in studies of new treatment technologies, combining the removal of emerging contaminants with safeguarding aquatic biota.Practitioner Points Acidogenic and methanogenic reactors reduced the acute and chronic toxicity of wastewater containing tetrabromobisphenol A. Both treatments still exhibit toxicity, inducing short‐ and long‐term toxic effects on four native tropical species. The aquatic species Pristina longiseta was most sensitive to effluents from acidogenic and methanogenic reactors. TBBPA concentrations recovered from Chironomus sancticaroli bioaccumulation analysis ranged from 1.07 to 1.35 μg g−1. Evaluating new treatment technologies with multiple species bioassays is essential for a comprehensive effluent toxicity assessment and ensuring aquatic safety.

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Effects of municipal wastewater treatment plant effluent quality on aquatic ecosystem organisms

Cited by 14 publications

References 43 publications

Evaluation of Ecotoxicity of Wastewater from the Full-Scale Treatment Plants

Evaluation of Ecotoxicity of Wastewater from the Full-Scale Treatment Plants

The potential ecological risk of veterinary pharmaceuticals from swine wastewater on freshwater aquatic environment

Anaerobic treatment removing tetrabromobisphenol A and biota safety: How do tropical aquatic species respond to effluent toxicity over short‐ and long‐term exposures?

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