Remoção de microcistina-LR da Microcystis aeruginosa utilizando bagaço de cana-de-açúcar in natura e carvão ativado

Almeida, Aline Rafaela de; Passig, Fernando Hermes; Pagioro, Thomaz Aurélio; Nascimento, Priscila Tiemi Higuti do; Carvalho, Karina Querne de

doi:10.4136/ambi-agua.1785

Cited by 2 publications

(2 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The Microcystis aeruginosa strain (code BB005, isolated from harmful bloom and provided by the Botany Department of Universidade Federal de São Carlos, Brazil) was cultivated in the ASM-1 medium (Gorham et al, 1964 with adaptations of Almeida et al, 2016) with inoculum at an initial concentration of 1.6x10 5 cell mL -1 . The cultures were maintained at 25 ± 3°C under luminosity of 36.81 ± 2.58 μmol of photons.s -1 .m² -1 and photoperiod of 12:12 h (light: dark).…”

Section: Culture Of Cyanobacteria and Plantsmentioning

confidence: 99%

Use of Myriophyllum aquaticum to inhibit Microcystis aeruginosa growth and remove microcystin-LR

Kitamura

Silva²,

Pagioro

et al. 2022

Rev. Bras. Ciênc. Ambient.

View full text Add to dashboard Cite

Harmful algal blooms are one of the greatest challenges when preserving water sources, especially when involving cyanobacteria such as Microcystis aeruginosa. Finding remediation possibilities is needed, and one of them has been the use of macrophytes such as the species Myriophyllum, which have presented allelopathic mechanisms of phytoplankton control. Thus, this work aimed to evaluate the inhibition of M. aeruginosa cell growth in a co-exposure with Myriophyllum aquaticum and the influence on microcystin-LR concentration. The experiments were carried out using a culture of M. aeruginosa (1x106 cells mL-1) in a co-exposure with M. aquaticum for seven days. The inhibitory effects were investigated by counting the cells; the effects on photosynthetic pigments were measured and microcystin-LR was quantified in the culture medium on the last experimental day. To evaluate the possible effects of competition for nutrients and space, the concentration of total orthophosphate was quantified and treatment with plastic plants was used. The experiments with Myriophyllum aquaticum achieved the total inhibition of M. aeruginosa growth and a significant reduction of the photosynthetic pigments (> 98%). Additionally, we observed a reduction of microcystin-LR concentration (79%) in the tests with macrophytes when compared to the control. Competition for space and nutrients was not observed, demonstrating that the effects on M. aeruginosa were caused by aquatic macrophyte presence. These results may indicate that M. aquaticum causes inhibitory effects on cyanobacteria growth by allelopathic effects and removes microcystin-LR.

show abstract

Section: Culture Of Cyanobacteria and Plantsmentioning

confidence: 99%

Use of Myriophyllum aquaticum to inhibit Microcystis aeruginosa growth and remove microcystin-LR

Kitamura

Silva²,

Pagioro

et al. 2022

Rev. Bras. Ciênc. Ambient.

View full text Add to dashboard Cite

show abstract

“…Os dados foram analisados através das isotermas de Freundlich. Com base nos dados experimentais da concentração de cromo no equilíbrio, calculou-se a quantidade de cromo adsorvido no biossólido em mg. BARBOSA et al, 2014;REIS et al, 2014;FERREIRA et al, 2015;ALMEIDA et al, 2016;TORRES et al, 2016).…”

Section: Análise Das Isotermas De Freundlichunclassified

Remoção De Cromo Por Biossólido: Tratamento De Efluente De Curtume

Jerônimo

Lima²,

Lima³

et al. 2019

R. gest. sust. ambient.

View full text Add to dashboard Cite

O metal cromo, presente em rejeitos das indústrias de couro, quando descartado de modo inadequado, ocasiona severos danos à saúde humana e ao equilíbrio ambiental. O objetivo do presente estudo foi otimizar o processo de biossorção de cromo de resíduos de curtume empregando o biossólido em sistema de fluxo contínuo. O biossólido de uma estação de tratamento de esgoto foi empregado como material biossorvente em sistema de filtros com fluxo contínuo. As análises de remoção de cromo foram realizadas em diferentes variações de pH, massa do biossorvente e tempo de processamento. A otimização do processo ocorreu em pH 4,30, tempo superior a 2 horas, 2,93 gramas de biossólido com remoção de cromo superior a 90% em sistema de fluxo contínuo. As isotermas de Freundlich revelaram adequação do processo à adsorção física. Trata-se, portanto, de um método alternativo, renovável, de fácil aplicação, eficiente, podendo ser empregado juntamente com os processos clássicos em tratamento de efluente de curtume.

show abstract

Remoção de microcistina-LR da Microcystis aeruginosa utilizando bagaço de cana-de-açúcar in natura e carvão ativado

Cited by 2 publications

References 11 publications

Use of Myriophyllum aquaticum to inhibit Microcystis aeruginosa growth and remove microcystin-LR

Use of Myriophyllum aquaticum to inhibit Microcystis aeruginosa growth and remove microcystin-LR

Remoção De Cromo Por Biossólido: Tratamento De Efluente De Curtume

Contact Info

Product

Resources

About