Copper and zinc fractionation in biosolid cultivated with Pennisetum purpureum in different periods

Oliveira, Ely Sandra Alves de; Cardoso, Paulo Henrique Silveira; Sousa, Izabelle de Paula; Alvarenga, Anarelly Costa; Rodrigues, Marcio Neves; Sampaio, Regynaldo Arruda

doi:10.1590/1807-1929/agriambi.v22n1p3-9

Cited by 4 publications

(4 citation statements)

References 16 publications

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“…The higher volume of P. purpureum roots may represent higher tolerance of the grass to sewage sludge contaminants and to the rise in substrate temperature in the initial phase of cultivation. The average total biomass of P. purpureum corresponded to 68 g per plant, with a density of 50 plants per m², were considered lower than that obtained by Oliveira et al (2018), who found a total biomass of 150 g per plant, with a density of 25 plants per m², at 90 days of cultivation in sewage sludge.…”

Section: Production Of P Purpureum and U Brizantha Grown In Sewage Sludgecontrasting

confidence: 59%

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Production of organic fertilizer based on sewage sludge cultivated with grass under an aeration system

et al. 2021

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The cultivation of grasses in sewage sludge (SS) with aeration has the potential for stabilization of sludge organic matter in the production of organic fertilizer. Thus, the objective of this work was to evaluate the cultivation of Urochloa brizantha and Pennisetum purpureum under aerated system on the chemical and biological attributes of SS to obtain a matured organic fertilizer. The study was conducted in a randomized block design in a 2x2+2 factorial scheme with four replications. Factors consisted of cultivation of P. purpureum or U. brizantha in SS, with or without intermittent aeration. Control treatments were SS without cultivation, with or without aeration. Sewage sludge was collected in layers and the chemical and microbial attributes were evaluated. There was no significant difference between treatments for grass dry matter. The C/N ratio was not matched with organic fertilizer stabilization due to similar losses of C and N (~7%). However, microbial activity was reduced in the presence of plant cultivation demonstrating improvement in the properties of the organic fertilizer produced. Through uni-and multivariate analysis, organic fertilizer produced from SS aerated and cultivated with P. purpureum showed matured organic matter.

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Section: Production Of P Purpureum and U Brizantha Grown In Sewage Sludgecontrasting

confidence: 59%

“…However, SS may contain contaminants such as heavy metals (Oliveira et al, 2018), toxic organic compounds (Alvarenga et al, 2017), and pathogens (Oliveira et al, 2019). In addition, it may not present stabilized organic matter, therefore, it needs some technique for its maturation.…”

Section: Introductionmentioning

confidence: 99%

Production of organic fertilizer based on sewage sludge cultivated with grass under an aeration system

et al. 2021

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“…In addition, Oliveira et al (2018), using dry sanitary sewage sludge from the same STP supplier of the residue used in this study, obtained, by sequential extraction, that 90.5% of Cu was found bound to stable fractions, such as carbonates, organic matter, sulphides and residual, whereas only 9.5% was in the soluble and exchangeable form.…”

Section: ------------------------Mg Kg -1 ------------------------mentioning

confidence: 63%

“…In the treatment with dry sanitary sewage sludge, there was a higher accumulation, with a total content of 123.18 mg kg -1 at 100 cm depth, corresponding to approximately twice the content of 66.8 mg kg -1 observed in the treatment without fertilization at the same depth ( Figure 1E). Oliveira et al (2018) studying the Zn speciation in dry sanitary sewage sludge, obtained that 4.9% of the Zn was in soluble and exchangeable form, justifying, in part, the metal leaching to a depth of 100 cm.…”

Section: ------------------------Mg Kg -1 ------------------------mentioning

confidence: 99%

As, Cu AND Zn CONCENTRATION IN SANITARY SEWAGE SLUDGE FERTILIZED SOIL AND IN CRAMBE AND CORN GRAINS

et al. 2018

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This study aimed to evaluate the total contents of As, Cu and Zn in the profile of a Haplic Cambisol cultivated with crambe and corn and fertilized with sanitary sewage sludge and to compare them with those obtained in other forms of fertilization, as well as the content of metals in the grain of these crops. Two experiments were carried out in the field, one with maize cultivation and another with crambe, both were delineated as randomized blocks with four treatments and six replicates, which were: without fertilization, fertilization with sewage sludge dewatered and dried in the sun, with dry sewage sludge and with mineral fertilizers. At the end of the experiments soil samples were collected at 15, 50, 100, 150 and 200 cm depth for analysis of the total contents of As, Cu and Zn, as well as the grain of the crops. No differences were observed among the treatments. The total contents of As, Cu and Zn in the soil in both experiments and in the corn grains are below the limits of prevention and the maximum limit in grains established by the Brazilian resolutions. In relation to depth, the metal contents in the samples collected from the soil submitted to the fertilization treatments were similar to those quantified in the plots that did not received fertilization, but there was accumulation of Cu and Zn in the upper layers of the soil that received fertilization.

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Heavy metals in the soil and castor bean plants fertilized with sewage sludge stabilized by different processes

Nascimento,

Durães,

Sampaio

et al. 2023

Cienc. Rural

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This study evaluated the levels of heavy metals in the soil and castor bean plant after fertilization with sewage sludge (SS) subjected to different stabilization processes. The study was conducted in a Haplic Cambisol with the following treatments: control (CO), fertilization with solarized sewage sludge (SSS), composted sewage sludge (CSS), vermi composted sewage sludge (VSS), limed sewage sludge (LSS), and mineral fertilizer (MF). The experimental design included a subdivided plot scheme with fertilization being the primary factor and soil layers or leaf parts being the secondary factor. The data obtained were analyzed using analysis of variance and the Scott-Knott test with 5% significance. Fertilization with SSS, CSS, and LSS led to the highest increase in Zn in the soil, mainly in the surface layer. In the leaf tissues, Zn and Cu levels were higher with the CO and SSS treatments, whereas the Ni level was higher with SSS, CSS, VSS, and MF treatments. In general, Zn and Cu levels were higher in the leaf limb than in the petiole, whereas Ni, Pb, and Cr levels were higher in the petiole than in the leaf limb. In any case, no symptoms of toxicity in the plants and no risk of soil contamination were observed with any of the fertilization treatments.

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Copper and zinc fractionation in biosolid cultivated with Pennisetum purpureum in different periods

Cited by 4 publications

References 16 publications

Production of organic fertilizer based on sewage sludge cultivated with grass under an aeration system

Production of organic fertilizer based on sewage sludge cultivated with grass under an aeration system

As, Cu AND Zn CONCENTRATION IN SANITARY SEWAGE SLUDGE FERTILIZED SOIL AND IN CRAMBE AND CORN GRAINS

Heavy metals in the soil and castor bean plants fertilized with sewage sludge stabilized by different processes

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