Effects of different filtration techniques on quality and toxicology of post treatment effluent from an anaerobic reactor
| Autor: | Sandro Xavier de Campos, Angie Thaisa da Costa Souza, Carlos Raphael Pedroso, Nilce Mary Turcatti Folle, Luiza Santos Barreto, Daniele Cristina Hass Seremeta, Ciro Alberto de Oliveira Ribeiro, Cleber Pinto da Silva, Carlos Magno de Sousa Vidal, Elton Celton de Oliveira |
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| Rok vydání: | 2020 |
| Předmět: |
Environmental Engineering
010504 meteorology & atmospheric sciences Nitrogen Population 010501 environmental sciences 01 natural sciences Waste Disposal Fluid law.invention Bioreactors law Environmental Chemistry Animals Anaerobiosis Ammoniacal nitrogen education Waste Management and Disposal Effluent Filtration 0105 earth and related environmental sciences Clinoptilolite education.field_of_study Chemistry Pulp and paper industry Pollution Activated charcoal Charcoal Sewage treatment Ecotoxicity |
| Zdroj: | The Science of the total environment. 723 |
| ISSN: | 1879-1026 |
| Popis: | The early stages of the fish life cycle correspond to the phase that is most susceptible to deleterious effects caused by exposure to pollution. The aim of this study was to evaluate the quality of the anaerobic reactor effluent after three filtration-based treatments, namely, Double-Filtration in gravel and sand (DF), Triple-Filtration in gravel, sand and Activated Charcoal (TF-AC) and Triple-Filtration in gravel, sand and clinoptilolite (TF-C). The toxic effects on the population dynamics of larvae and embryos of catfish (Rhamdia quelen) to the final effluent were evaluated using an individual-based model (IBM). The results indicate that the three post-treatments produced effluents with significant improvement of the physicochemical parameters evaluated in relation to the anaerobic reactor effluent. In addition, all post-treatments improved the removal of metal ions. Experimental data showed high mortality rates for Rhamdia quelen embryos and larvae for most treatments, except for the effluent treated by TF-C. The results demonstrated that the concentration of ammoniacal nitrogen in relation to AR treatments (69.0); DF (44.0); TF-AC (46.6) and TF-C (0.33) in mg/L can be a limiting factor for the development of embryos and larvae during the ecotoxicity tests. |
| Databáze: | OpenAIRE |
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