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| Braga,Fabíola M.; Cardoso,Paulo H. S.; Barbosa,Mário H. C.; Rodrigues,Márcio N.; Sampaio,Regynaldo A.; Fernandes,Luiz A.. |
| ABSTRACT The pursuit for waste recovery has been the best way to contribute to environmental sustainability. The mix of sewage sludge (SS) from Sewage Treatment Plant with diatomaceous material containing oil (DE), used as a filter in biofuel production, can form a substrate rich in minerals and organic matter through vermicomposting. Therefore, this study aimed to produce vermicompost using worms, Eisenia foetida, from a pre-compost (PC) of sewage sludge and garden pruning residues mixed with different proportions of DE in relation to PC: 0; 7.53; 15.06; 22.59; and 30.12% v/v. The design was randomized complete blocks with five treatment replicates. The chemical characteristics of the vermicompost were analyzed after a period of four months. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biosolid; Eisenia foetida; Organic compost. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000800519 |
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| Alvarenga,Anarelly C.; Sampaio,Regynaldo A.; Pinho,Gevany P.; Cardoso,Paulo H. S.; Sousa,Izabelle de P.; Barbosa,Mário H. C.. |
| ABSTRACT 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... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sewage sludge; Toxic organic substance; Environmental pollution. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000800573 |
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