Acute toxicity of hardboard mill effluents to different bioindicators

Leal, Hellmuth; Rocha, H.A.; Lema, Juan M.

doi:10.1002/(sici)1098-2256(1997)12:1<39::aid-tox6>3.0.co;2-9

Cited by 7 publications

(3 citation statements)

References 1 publication

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“…seems to be most relevant model due to the possibility to detect specific responses to the certain compounds. Similarly, in the acute toxicity tests for CPM effluents, the fish Salmo gairdneri was the more sensitive indicative species than Daphnia pulex or bacterial tests (Leal, Rocha, & Lema, 1997). However, in the case of the inability to sampling fish, the bivalve could represent the valuable test-organism according to our results.…”

Section: Specific Effects Of Pollution Detected By the Biomarkers Of supporting

confidence: 53%

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Falfushynska¹,

Gnatyshyna²,

Goch³

et al. 2018

Turk. J. Fish. Aquat. Sci.

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The effluents of cardboard-paper mill (CPM) industry belong to most abundant pollutants of surface water. The aim of this study was to elucidate the toxicity of effluents downstream the CPM by the bioindication. The specimens of fish Carassius auratus (Cyprinidae) and mollusk Unio tumidus (Unionidae) from the suspected polluted area (SP) and pristine area as control (C) were compared. The fish and mollusk from SP demonstrated plural signs of toxicity and stress: 2.5−3.7 times higher levels of DNA fragmentation, nuclear abnormalities, lipid peroxidation products and lipofuscin (determined only in fish) in comparison with C-groups. The exposure to the certain xenobiotics was confirmed by the elevated by 2−3 times levels of metallothionein (response to toxic metals), CYP450-related activity and vitellogenin-like proteins (responses to endocrine disrupters, in particular, chlorinated organic substances). Cholinesterase activity in the brain of fish was the same in the C-and SP-groups proving the low evidence of typical agricultural pollution. Chemical analysis of water confirmed the highest level of pollution by phenols, chlorine, sulphate, nitrogen and organic compounds only directly downstream the wastewater treatment facilities of the CPM. These results prove the molecular bioindication to be the most valid approach to assess the toxicity of CPM effluents.

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Section: Specific Effects Of Pollution Detected By the Biomarkers Of supporting

confidence: 53%

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Falfushynska¹,

Gnatyshyna²,

Goch³

et al. 2018

Turk. J. Fish. Aquat. Sci.

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“…The toxicity of the effluent from the thermo-mechanical process to aquatic species is related to the presence of extractives and tannins (Temmink et al, 1989). These have a very strong acute toxicity to Salmo gairdneri (96 h LC 50 Z 0.66% v/v) and Daphnia pulex (24 h LC 50 Z2.45% v/v) (Leal et al, 1997). Moreover, with softwood-species, thermo-mechanical effluents are also toxic to fish, having a median lethal concentration (96 h LC 50 ) in the range of 4-10% by volume (Leach and Thakone, 1976).…”

Section: Introductionmentioning

confidence: 99%

Methanogenic toxicity and continuous anaerobic treatment of wood processing effluents

Vidal¹,

Díez²

2005

Journal of Environmental Management

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“…The toxicity of the effluent from the thermomechanical process to aquatic species is related to the presence of extractives and tannins (Temmink et al, 1989). These have a very strong acute toxicity to Salmo gairdneri (96 h LC50Z 0.66% v/v) and Daphnia pulex (24 h LC50Z 2.45% v/v) (Leal et al, 1997). Moreover, with softwood species, thermomechanical effluents are also toxic to fish, having a median lethal concentration (96 h LC50) in the range of 4-10% by volume (Leach and Thakone, 1976).…”

Section: Introductionmentioning

confidence: 99%

Application of Fenton's Reagent on Wastewater from a Wood Processing Industry

Barampouti

Mai

Vlyssides

2008

Environmental Engineering Science

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Wood processing industry wastewater is a high strength wastewater, not amenable to conventional biological treatment. In this study, this wastewater was chemically treated using Fenton's reagent. Based on a number of preliminary experiments, a factorial experimental procedure was designed to examine the influence of a number of parameters on the oxidation efficiency, in terms of % COD removal. These parameters were: dilution of wastewater, heptahydrated ferrous sulphate concentration, hydrogen peroxide (30%) concentration and sulphuric acid (98%) concentration. The Fenton oxidation process was very effective, because in all cases the percent COD removal efficiency was in excess of 70%. Based on the achieved results, the optimum experimental conditions regarding oxidation effectiveness parameters were estimated. The optimum experimental conditions for the oxidation of wood processing industry wastewater were found to be the following: wastewater dilution 70%, FeSO 4 и 7H 2 O concentration 5.5 g/L, H 2 O 2 concentration 0.95 mL/L. These values allowed achieving the highest COD removal in the experiments, namely 88% of the initial content. Conclusively, Fenton oxidation could be a feasible method for the treatment of wood processing industry wastewater.

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Acute toxicity of hardboard mill effluents to different bioindicators

Cited by 7 publications

References 1 publication

Untitled

Untitled

Methanogenic toxicity and continuous anaerobic treatment of wood processing effluents

Application of Fenton's Reagent on Wastewater from a Wood Processing Industry

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