Treatment of university campus wastewaters by anaerobic reactor and multi-stage constructed wetlands

Silva, Fagner Pereira da; Lütterbeck, Carlos Alexandre; Colares, Gustavo Stolzenberg; Oliveira, Gislayne Alves; Rodrigues, Lúcia Ribeiro; Dell’Osbel, Naira; Rodríguez, Adriane Lawisch; López, Diosnel Antonio Rodríguez; Gehlen, Günther; Machado, Ênio Leandro

doi:10.1016/j.jwpe.2021.102119

Cited by 15 publications

(2 citation statements)

References 26 publications

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“…The H. grumosa usage in constructed wetlands (CW) was reported in several studies. For example, it can be mentioned the research conducted by Horn et al (2014) ; Lutterbeck et al (2017) ; Dell'Osbel et al (2020) ; da Silva et al (2021) . It is highlighted that H. grumosa is known for its potential in removing contaminants, easy acclimatization and dense root system, and pruning allowed in three or four months ( Machado et al, 2015 ).…”

Section: Resultsmentioning

confidence: 99%

New low-cost biofilters for SARS-CoV-2 using Hymenachne grumosa as a precursor

Demarco

Afonso

Schoeler

et al. 2022

Journal of Cleaner Production

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The ongoing global spread of COVID-19 (SARS-CoV-2 2019 disease) is causing an unprecedented repercussion on human health and the economy. Despite the primary mode of transmission being through air droplets and contact, the transmission via wastewater is a critical concern. There is a lack of techniques able to provide complete disinfection, along with the uncertainty related to the behavior of SARS-CoV-2 in the natural environment and risks of contamination. This fact makes urgent the research towards new alternatives for virus removal from water and wastewater. Thus, this research aimed to characterize new lost-cost adsorbents for SARS-CoV-2 using Hymenachne grumosa as a precursor and verify its potential for removing SARS-CoV-2 from the solution. The aquatic macrophyte H. grumosa had in natura and activated carbon produced with H. grumosa and zinc chloride (ZnCl 2, 1:1) impregnation and carbonization (700 °C, 1 h) were incubated for 24 h with inactivated SARS-CoV-2 viral suspension, and then the ribonucleic acid (RNA) was extracted and viral load quantified through reverse transcription-quantitative polymerase chain reaction (RT-qPCR) technique. The results demonstrated the great adsorption potential, achieving removal of 98.44% by H. grumosa “in natura” , and 99.61% by H. grumosa with carbon activation, being similar to commercial activated carbon (99.67%). Thus, this study highlights the possibility of low-cost biofilters to be used for SARS-CoV-2 removal, as an excellent alternative for wastewater treatment or watercourses decontamination.

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Section: Resultsmentioning

confidence: 99%

New low-cost biofilters for SARS-CoV-2 using Hymenachne grumosa as a precursor

Demarco

Afonso

Schoeler

et al. 2022

Journal of Cleaner Production

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“…Quase todos os parâmetros investigados estavam de acordo com os limites de emissão estabelecidos pela legislação brasileira vigente. Além disso, o bom desempenho do sistema híbrido traz novas possibilidades de reaproveitamento dos efluentes tratados, de modo que estejam adequados para serem reaproveitados em pomares, cereais, forrageiras, pastagens para gado e outras culturas por meio de escoamento superficial ou por sistema de irrigação pontual(Silva et al, 2021).Sistemas locais de tratamento de águas residuais em áreas rurais e periurbanas do Brasil foram comparados em diferentes cenários do ponto de vista da Avaliação do Ciclo de Vida (ACV). Os cenários avaliados representaram diferentes práticas na gestão de águas residuais, como lançamento direto no solo, tratamento rudimentar, fossa séptica, sistema de esgoto público e separação de fontes de fluxos de águas residuais para água, nutrientes e matéria orgânica recuperação.…”

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Análise Bibliométrica: Saneamento Descentralizado Com Aplicação De Wetlands Construídos No Tratamento De Águas Residuárias

Teixeira,

Rodríguez,

Schneider

et al. 2024

Rev. Pol. Púb. & Cid.

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Wetlands Construídos (WCs) são utilizados, de maneira descentralizada, para promover o tratamento (primário, secundário e/ou terciário) de águas residuárias de fontes difusas (esgoto doméstico uni ou multifamiliar em zona rural ou urbana, do setor hoteleiro, de agroindústrias, de campus universitários, etc.) em diferentes locais do mundo. A linha de pesquisa de tecnologias de tratamento de águas de abastecimento e águas residuárias tem como foco maximizar o resultado das performances de sistemas de tratamento descentralizados, de pequeno porte e que utilizem WCs em alguma etapa do tratamento de esgoto doméstico (uni ou multifamiliar). O objetivo do trabalho de revisão narrativa sistemática foi elencar com detalhamento (objetivos, metodologia, diferenciais e resultados) os principais autores e trabalhos produzidos na área de saneamento descentralizado utilizando WCs na plataforma científica Web of Science. Dessa maneira foi possível indicar as referências autorais específicas existente nesse nicho de pesquisa, identificar os termos (wastewater treatment, domestic waste, decentralized treatment, stability sludge) de maior ocorrência e as publicações de maior impacto.

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Application of Anaerobic Co-digestion of Brewery by-Products for Biomethane and Bioenergy Production in a Biorefinery Concept

Sganzerla,

Tena,

Sillero

et al. 2023

Bioenerg. Res.

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This study investigated the anaerobic co-digestion (AcoD) of brewery by-products for biomethane and bioenergy recovery, focusing on operational performance evaluation, kinetic analysis, microbial metataxonomic, and metabolic function prediction. The biochemical methane potential was conducted under mesophilic (35 °C) and methanogenic conditions (pH 7.5) by mixing brewery wastewater and sludge from the brewery wastewater treatment plant (1:1, v/v), following the addition (2.5 – 12.5 %, w/v) of brewer’s spent grains (BSG). The results demonstrate that the highest methane yield (88.02 mL CH4/g TVS) was obtained with 12.5 % BSG, which was 20.66-fold higher than the control reactor operated with wastewater and sludge (4.26 mL CH4/g TVS). The bioenergy recovery from biomethane could generate electricity (0.348 kWh/kg TVS) and heat (1556 MJ/kg TVS), avoiding greenhouse gas emissions (0.114 kg CO2-eq/kg TVS). The microbial community dynamics revealed a predominance of Halobacterota, Chloroflexi, and Euryarchaeota phylum. The genera Methanosaeta and Methanobacterium, and the Anaerolineaceae family predominated in the AcoD process. The metabolic function prediction showed the presence of genes (K01895, K00193, K00625, and K00925) associated with the direct activation of acetate in the acetoclastic pathway and methane production. Finally, the data obtained provide a perspective on using brewery by-products for bioenergy production in a biorefinery concept, reducing the environmental impacts and contributing to the circular bioeconomy transition of the beer industry. Graphical abstract

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Treatment of university campus wastewaters by anaerobic reactor and multi-stage constructed wetlands

Cited by 15 publications

References 26 publications

New low-cost biofilters for SARS-CoV-2 using Hymenachne grumosa as a precursor

New low-cost biofilters for SARS-CoV-2 using Hymenachne grumosa as a precursor

Análise Bibliométrica: Saneamento Descentralizado Com Aplicação De Wetlands Construídos No Tratamento De Águas Residuárias

Application of Anaerobic Co-digestion of Brewery by-Products for Biomethane and Bioenergy Production in a Biorefinery Concept

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