Acid mine drainage (AMD) treatment by neutralization: Evaluation of physical-chemical performance and ecotoxicological effects on zebrafish (Danio rerio) development

Pereira, Talita Carneiro Brandão; Santos, Karine Batista dos; Lautert-Dutra, William; Teodoro, Lilian de Souza; Almeida, Vítor Otacílio de; Weiler, Jéssica; Schneider, Ivo; Bogo, Maurı́cio Reis

doi:10.1016/j.chemosphere.2020.126665

Cited by 26 publications

(10 citation statements)

References 55 publications

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“…This practice was validated by recent studies applying the reagents Ca(OH) 2 and NaOH at pH 7.0 and 8.7 to treat acid mine drainage from a coal mine [6,7]. All neutralizing treatments resulted in a satisfactory reduction in the metal concentration, with the best results achieved using Ca(OH) 2 at pH 8.7, although Mn and As remained above or near the maximum limits for discharge according to the Brazilian legislation.…”

Section: Introductionmentioning

confidence: 66%

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Removal of Pollutants from an AMD from a Coal Mine by Neutralization/Precipitation Followed by “In Vivo” Biosorption Step with the Microalgae Scenedesmus sp.

et al. 2020

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This work evaluates the benefits of a complementary treatment step of acid mine drainage (AMD) using the algae Scenedesmus sp. in terms of algae biomass production, residual metal removal, and the toxicity of the discharged water. Conventional treatment by neutralization/precipitation of an AMD from a coal mine in Brazil was conducted with Ca(OH)2 at pH 8.7. Algal growth studies were performed in the treated AMD, with and without a nutrient supply. The raw effluent and treatments were compared in terms of residual concentration of metals and sulfate, conductivity, and toxicity with the Allium cepa and Daphnia magna test organisms. The results show that the conventional treatment allowed a major metal removal, reduction in the conductivity, and good indices in the toxicological parameters evaluated. The biosorption with in vivo microalgae improved the quality of the effluent for residual metals. No significant toxicity was observed to Allium cepa in all treatments performed, while the Daphnia magna test indicated a reduction in toxicity after the biosorption step. It was concluded that algae growth can be carried out in treated mine waters, providing algae biomass and helping to achieve the standards for water discharge.

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Section: Introductionmentioning

confidence: 66%

“…These results were compared with the current Brazilian environmental legislation, CONAMA 430/2011 [37]. [38] and results partially published in Pereira et al [7].…”

Section: Resultsmentioning

confidence: 91%

Removal of Pollutants from an AMD from a Coal Mine by Neutralization/Precipitation Followed by “In Vivo” Biosorption Step with the Microalgae Scenedesmus sp.

et al. 2020

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“…At present, there are a few reports on the disposal and recovery of oxalic acid and hydrochloric acid from the rare earth oxalic acid precipitation mother liquor, including limestone neutralization [ 5 ], membrane distillation [ 6 ], evaporation crystallization [ 7 ] , and extraction [ 8 ]. However, these methods still have some disadvantages.…”

Section: Introductionmentioning

confidence: 99%

Separation of Hydrochloric Acid and Oxalic Acid from Rare Earth Oxalic Acid Precipitation Mother Liquor by Electrodialysis

Zhou

et al. 2023

Membranes

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In this study, the hydrochloric acid from rare earth oxalic acid precipitation mother liquor was separated by electrodialysis (ED) with different anion exchange membranes, including selective anion exchange membrane (SAEM), polymer alloy anion exchange membrane (PAAEM), and homogenous anion exchange membrane (HAEM). In addition to actual wastewater, nine types of simulated solutions with different concentrations of hydrochloric acid and oxalic acid were used in the experiments. The results indicated that the hydrochloric acid could be separated effectively by electrodialysis with SAEM from simulated and real rare earth oxalic acid precipitation mother liquor under the operating voltage 15 V and ampere 2.2 A, in which the hydrochloric acid obtained in the concentrate chamber of ED is of higher purity (>91.5%) generally. It was found that the separation effect of the two acids was related to the concentrations and molar ratios of hydrochloric acid and oxalic acid contained in their mixtures. The SEM images and ESD–mapping analyses indicated that membrane fouling appeared on the surface of ACS and CSE at the diluted side of the ED membrane stack when electrodialysis was used to treat the real rare earth oxalic acid precipitation mother liquor. Fe, Yb, Al, and Dy were found in the CSE membrane section, and organic compounds containing carbon and sulfur were attached to the surface of the ACS. The results also indicated that the real rare earth precipitation mother liquor needed to be pretreated before the separation of hydrochloric acid and oxalic acid by electrodialysis.

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“…20,21 heavy metals as a class of contaminants have gotten increasing attention. [22][23][24] Moreover, mine-derived hard rock and liquid tailings waste can alter the chemistry of water and sediment 25 as well as the release of contaminants that endanger aquatic ecosystems and human health. 26,27 Therefore, mining industries and chemical facilities are considered the primary pollution sources, 28 and their wastewater need to be treated before releasing into the environment.…”

Section: Introductionmentioning

confidence: 99%

Global research progress on mining wastewater treatment: a bibliometric analysis

Zahoor

Mao

Jia

et al. 2022

Environ. Sci.: Adv.

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Acid mine drainage (AMD) treatment by neutralization: Evaluation of physical-chemical performance and ecotoxicological effects on zebrafish (Danio rerio) development

Cited by 26 publications

References 55 publications

Removal of Pollutants from an AMD from a Coal Mine by Neutralization/Precipitation Followed by “In Vivo” Biosorption Step with the Microalgae Scenedesmus sp.

Removal of Pollutants from an AMD from a Coal Mine by Neutralization/Precipitation Followed by “In Vivo” Biosorption Step with the Microalgae Scenedesmus sp.

Separation of Hydrochloric Acid and Oxalic Acid from Rare Earth Oxalic Acid Precipitation Mother Liquor by Electrodialysis

Global research progress on mining wastewater treatment: a bibliometric analysis

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