Alyne Moraes Costa
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Scopus Publications
- Landfill Leachate and Ecotoxicity
Alyne Moraes Costa, Sarah Dario Alves Daflon, Juacyara Carbonelli Campos
Springer Water, 2024 - Evaluation of the main pollutants present in Brazilian landfill leachates using ecotoxicity assays
Alyne Moraes Costa, Marllon Robert dos Santos Valentim, Diogo José Menezes de Azevedo, Bianca Ramalho Quintaes, Sarah Dario Alves Daflon, Juacyara Carbonelli Campos
Process Safety and Environmental Protection, 2023 - Monitoring of experimental landfill cells with membrane concentrate infiltration: A systematic assessment of leachate quality and treatment performance
Ronei de Almeida, Raphael Ferreira Porto, Marco André Giovannini Hinojosa, Luísa Coelho Mobrici Sanches, Breno Berardo Monteiro, André Luiz Ferreira Menescal Conde, Alyne Moraes Costa, Bianca Ramalho Quintaes, Daniele Maia Bila, Juacyara Carbonelli Campos
Process Safety and Environmental Protection, 2022 - Comparison between Aliivibrio fischeri and activated sludge microorganisms in the evaluation of the toxic pollutants of leachates from Brazilian landfills
Alyne Moraes Costa, Marllon Robert dos Santos Valentim, Livia Ferreira da Silva, Ronei de Almeida, Sarah Dario Alves Daflon, Bianca Ramalho Quintaes, Juacyara Carbonelli Campos
Environmental Science and Pollution Research, 2022 - Ozonation pretreatment for reduction of landfill leachate fouling on membranes: A response surface methodology analysis
Everton Gripa, Alyne M. Costa, Juacyara C. Campos, Fabiana V. da Fonseca
Processes, 2020
Batch ozonation was performed to assess its efficacy as a pretreatment for reverse osmosis (RO) membranes for treating leachate with high concentrations of recalcitrant organic compounds. Leachate samples from two different landfills were collected and characterized. The modified fouling index (MFI) was used to estimate the fouling potential of raw and ozonized leachates. A response surface experimental design was applied to optimize operational pH and ozone dose. The results demonstrate that the best operational conditions are 1.5 g/L of O3 at pH 12.0 and 1.5 g/L of O3 at pH 9.0 for Landfills 1 and 2, which reduce MFI by 96.22% and 94.08%, respectively. Additionally, they show toxicity factor decays of 98.44% for Landfill 1 and 93.75% for Landfill 2. These results, along with the similar behavior shown by leachate samples from distinct landfills, suggest that ozonation is a promising technology to fit this kind of wastewater into the requirements of RO membranes, enabling their use in such treatment. - Evaluation of toxic potential of leachate originating from experimental landfill cells containing household waste and healthcare waste
Alyne Moraes Costa, Carlos Augusto Machado da Costa e Silva, Sarah Dario Alves Daflon, Bianca Ramalho Quintaes, João Alberto Ferreira, Juacyara Carbonelli Campos
Waste Management and Research, 2019
Two experimental cells with household solid waste and healthcare solid waste were monitored in order to evaluate the pollution potential, and its toxicity effects corresponding to the chemical substances present in the leachates generated, correlating the physico–chemical composition with the ecotoxicity results (organisms Aliivibrio fischeri and Danio rerio). From the statistical evaluation of the physico–chemical analysis results, leachate generated in the household solid waste cell presented greater or equal values than to the healthcare solid waste cell, except for the turbidity parameter. The ecotoxicity results showed the same behaviour as that obtained with the physico–chemical analysis. A significant positive correlation was verified between chemical oxygen demand, alkalinity and ammonia nitrogen parameters with the leachate toxicity. This study concluded that healthcare solid waste presented less or equal polluting potential compared with household solid waste, and the co-disposal can be considered a viable alternative in sanitary landfills. - Landfill leachate treatment in Brazil – An overview
Alyne Moraes Costa, Raquel Greice de Souza Marotta Alfaia, Juacyara Carbonelli Campos
Journal of Environmental Management, 2019 - Municipal solid waste in Brazil: A review
Raquel Greice de Souza Marotta Alfaia, Alyne Moraes Costa, Juacyara Carbonelli Campos
Waste Management and Research, 2017
The production of municipal solid waste (MSW) represents one of the greatest challenges currently faced by waste managers all around the world. In Brazil, the situation with regard to solid waste management is still deficient in many aspects. In 2015, only 58.7% of the MSW collected in Brazilian cities received appropriate final disposal. It was only as late as 2010 that Brazil established the National Policy on Solid Waste (NPSW) based on the legislation and programmes established in the 1970s in more developed countries. However, the situation with regard to MSW management has changed little since the implementation of the NPSW. Recent data show that, in Brazil, disposal in sanitary landfills is practically the only management approach to MSW. Contrary to expectations, despite the economic recession in 2015 the total annual amount of MSW generated nationwide increased by 1.7%, while in the same period the Brazilian population grew by 0.8% and economic activity decreased by 3.8%. The article describes the panorama with regard to MSW in Brazil from generation to final disposal and discusses the issues related to the delay in implementing the NPSW. The collection of recyclable material, the recycling process, the application of reverse logistics and the determination of the gravimetric composition of MSW in Brazil are also addressed in this article. Finally, a brief comparison is made between MSW management in Brazil and in other countries, the barriers to developing effective waste disposal systems are discussed and some recommendations for future MSW management development in Brazil are given. - Evaluation of salinity toxicity in biological nitrification effluent using the respirometry technique
Alyne Moraes Costa, Juacyara Carbonelli Campos
Revista Ambiente E Agua, 2015
A nitrificacao biologica em meio salino foi investigada em sistema continuo, a partir de um efluente sintetico contendo 152,44 mg L-1 de nitrogenio amoniacal total. Os testes com adicao de concentracoes crescentes de sal (100, 250, 500, 1.000, 2.000, 4.000, 8.000, 10.000 e 15.000 mg Cl- L-1) foram realizados em um biorreator em escala de laboratorio de 5,7 L. Neste estudo, o objetivo foi avaliar a resposta da tecnica de respirometria na identificacao da toxicidade da biomassa nitrificante em diferentes concentracoes salinas. Durante o periodo experimental, o biorreator operou com o tempo de retencao hidraulica de 48h e valores de OD, pH e temperatura foram mantidos em 4,0-5,0 mg L-1, 7,5 e 25°-30°C, respectivamente. Os ensaios de respirometria foram realizados em triplicata, com a utilizacao da sonda de oxigenio dissolvido. Os resultados da respirometria constataram que ambas as taxas de consumo de oxigenio (OUR) e de consumo especifico de oxigenio (SOUR) aumentaram ate a concentracao de 1.000 mg Cl- L-1, quando o maximo de eficiencia de nitrificacao de 65,18% foi obtida com aproximadamente 90 dias de operacao do sistema. No entanto, o aumento gradual a partir de 2.000 mg Cl- L-1, resultou na queda dos valores de consumo de oxigenio, ocorrendo consequentemente a reducao da atividade metabolica da biomassa, verificada com a reducao dos valores de eficiencia de nitrificacao. Estes resultados evidenciam que a tecnica de respirometria apresentou-se como uma ferramenta eficaz e segura para avaliacao da toxicidade da biomassa do lodo ativado, sendo capaz de detectar a queda da atividade celular na presenca de inibidores, como elevadas concentracoes de salinidade.
