Anarelly C. Alvarenga
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Anarelly C. Alvarenga has a total of 7 co-authors. Here are the top co-authors by number of shared publications:
- Izabelle de Paula Sousa
Federal University of Viçosa
2 shared publications - Paulo Henrique Silveira Cardoso
Center for Nuclear Energy in Agriculture, Universidade de São Paulo (USP), Piracicaba 13416-903, SP, Brazil
2 shared publications - Regynaldo Arruda Sampaio
Universidade Federal de Minas Gerais, Brasil
2 shared publications - Ely Sandra Alves Oliveira
Universidade Federal de Minas Gerais, Brazil
1 shared publication - Gevany Paulino de Pinho
Institute of Agricultural Science, Federal University of Minas Gerais, Montes Claros, Minas Gerais, Brazil
1 shared publication - Márcio Neves Rodrigues
Universidade Federal de Minas Gerais, Brazil
1 shared publication
Latest Publications
- Open Access
- 1 January 2018
- Published by FapUNIFESP (SciELO) in Revista Brasileira de Engenharia Agrícola E Ambiental
- Vol. 22 (1) , 3-9
Copper and zinc fractionation in biosolid cultivated with Pennisetum purpureum in different periods
In order to reduce the effect of heavy metals on the biosolid, it is necessary to promote its phytoremediation. It is important to know the total content and chemical forms of these elements in the residue for analyzing its behavior and potential toxicity. Thus, the aim of this study was to evaluate the fractionation and behavior of Cu and Zn in biosolid cultivated with Pennisetum purpureum in different periods. The experiment was carried out using a randomized complete block design. The treatments, with five replicates, corresponded to Pennisetum purpureum cultivation in biosolid for 30, 60, 90, 120 and 150 days after planting. The total contents of Cu and Zn in the biosolid remained below the critical limits established by the CONAMA Resolution 357, and there was a reduction in these values with Pennisetum purpureum cultivation. Furthermore, the increment in the grass cultivation period caused intense reduction of Zn contents bound to organic matter, but there was an increase in soluble Zn and residual Zn. Additionally, there was an intense reduction in the content of Cu bound to sulfides. Therefore, for biosolid phytoremediation purposes, the grass should be cultivated for 150 days.
- 1 January 2018
- Published by FapUNIFESP (SciELO) in Revista Brasileira de Engenharia Agrícola E Ambiental
- Vol. 22 (1) , 3-9
Open AccessCopper and zinc fractionation in biosolid cultivated with Pennisetum purpureum in different periods
In order to reduce the effect of heavy metals on the biosolid, it is necessary to promote its phytoremediation. It is important to know the total content and chemical forms of these elements in the residue for analyzing its behavior and potential toxicity. Thus, the aim of this study was to evaluate the fractionation and behavior of Cu and Zn in biosolid cultivated with Pennisetum purpureum in different periods. The experiment was carried out using a randomized complete block design. The treatments, with five replicates, corresponded to Pennisetum purpureum cultivation in biosolid for 30, 60, 90, 120 and 150 days after planting. The total contents of Cu and Zn in the biosolid remained below the critical limits established by the CONAMA Resolution 357, and there was a reduction in these values with Pennisetum purpureum cultivation. Furthermore, the increment in the grass cultivation period caused intense reduction of Zn contents bound to organic matter, but there was an increase in soluble Zn and residual Zn. Additionally, there was an intense reduction in the content of Cu bound to sulfides. Therefore, for biosolid phytoremediation purposes, the grass should be cultivated for 150 days.
- Open Access
- 1 August 2017
- Published by FapUNIFESP (SciELO) in Revista Brasileira de Engenharia Agrícola E Ambiental
- Vol. 21 (8) , 573-578
Phytoremediation of chlorobenzenes in sewage sludge cultivated with Pennisetum purpureum at different times
One of the major limitations of sewage sludge agricultural use is the presence of chlorobenzenes (CBs), which are toxic to the environment. The use of techniques of sewage sludge phytoremediation can be an important alternative for the degradation of these substances in the waste. The aim of this study was to evaluate the effect of Pennisetum purpureum cultivation time on the reduction of the concentrations of 1,4-CB and 1,3,5-CB in sewage sludge. The experiment was conducted in a greenhouse, using a randomized block design. The treatments consisted of five periods of Poaceae cultivation in sewage sludge plots (30, 60, 90, 120 and 150 days) and a control (sludge plots not cultivated). At 150 days, the control, in the layer of 0-20 cm, showed higher concentrations of 1,3,5-CB, compared with the same layer of cultivated sludge. In the cultivated sludge, in the 10-20 cm layer, there was a decrease in the concentrations of 1,4-CB, while in the layer of 20-30 cm, both concentrations decreased. The observed reductions may be the result of mutualistic interactions between decomposer organisms and the roots of P. purpureum, favoring the decomposition process.
- 1 August 2017
- Published by FapUNIFESP (SciELO) in Revista Brasileira de Engenharia Agrícola E Ambiental
- Vol. 21 (8) , 573-578
Open AccessPhytoremediation of chlorobenzenes in sewage sludge cultivated with Pennisetum purpureum at different times
One of the major limitations of sewage sludge agricultural use is the presence of chlorobenzenes (CBs), which are toxic to the environment. The use of techniques of sewage sludge phytoremediation can be an important alternative for the degradation of these substances in the waste. The aim of this study was to evaluate the effect of Pennisetum purpureum cultivation time on the reduction of the concentrations of 1,4-CB and 1,3,5-CB in sewage sludge. The experiment was conducted in a greenhouse, using a randomized block design. The treatments consisted of five periods of Poaceae cultivation in sewage sludge plots (30, 60, 90, 120 and 150 days) and a control (sludge plots not cultivated). At 150 days, the control, in the layer of 0-20 cm, showed higher concentrations of 1,3,5-CB, compared with the same layer of cultivated sludge. In the cultivated sludge, in the 10-20 cm layer, there was a decrease in the concentrations of 1,4-CB, while in the layer of 20-30 cm, both concentrations decreased. The observed reductions may be the result of mutualistic interactions between decomposer organisms and the roots of P. purpureum, favoring the decomposition process.