Showing 1 - 10 of 221
O objetivo deste trabalho foi calcular o custo de produção do milho de verão fertilizado com lodo de esgoto. O milho foi cultivado com preparo reduzido de solo em experimento instalado no ano agrícola 2001/2002 na Fazenda de Ensino e Pesquisa da Faculdade de Ciências Agrárias e...
Persistent link: https://www.econbiz.de/10008916038
runoff and sediment yield simulations when calibrated parameter values for the nearby untreated watershed were used. This was … watershed, the model performance improved remarkably. During calibration, the model simulated surface runoff and sediment yield ….81, respectively. During validation period, the model simulated runoff and sediment yield with percent deviations equal to +8.56 and +9 …
Persistent link: https://www.econbiz.de/10010997628
™ (MILwaukee ORGAnic NITtrogEn) biosolid for reducing sediment and phosphorus transport under laboratory rainfall simulations was … runoff was collected continuously from each soil box over 10min intervals and leachate was collected continuously over the 60 …min simulation. The reduction in runoff or in leachate for all treatments was not significantly different from the bare …
Persistent link: https://www.econbiz.de/10011047913
, biosolid. Among the rural producers, 87% would use the fertilizer originated from the sewer’s mud. … de esgoto.------------------------------------------------------The organic fertilizer, originated from organic solid …, sanitarium, agronomic and socioeconomic aspects. This study observes the socioeconomic subjects of the biosolid issues, with the …
Persistent link: https://www.econbiz.de/10009216430
. From the model output predictions, it is found that average erosion rate predicted is 18.00 tons/ha/year and sediment yield … at the out let of the catchment is 22.30 Million tons per annum. The predicted sediment yield verified with the observed …
Persistent link: https://www.econbiz.de/10010996746
<Para ID="Par1">The application of models capable of estimating sediment transport in sewers has been a frequent … practice in the past years. Considering the fact that predicting sediment transport within the sewer is a complex phenomenon … Fuzzy Inference System (ANFIS) this article studies sediment transport in sewers. For this purpose, five different …
Persistent link: https://www.econbiz.de/10010997644
Harbors are coastal areas with significant anthropogenic pollutant loads causing ecological and human health risk. Seabed sediments have the potential to act as final trap of any contaminant introduced in the seawater column. Environmental quality improvement and decision making process...
Persistent link: https://www.econbiz.de/10010860236
Sediments in estuary areas are recognized as the ultimate reservoirs for numerous contaminants, e.g., toxic metals. Multivariate analyses by chemometric evaluation were performed to classify metal ions (Cu, Zn, As, Cr, Pb, Ni and Cd) in superficial sediments from Lingdingyang Bay and to...
Persistent link: https://www.econbiz.de/10011265949
The Water-lifting Aerator, which is a retrofit of the hydraulic gun, was developed to oxygenate lower-layer water and mix the water on the upper and lower layers in stratified reservoirs where pollutants increase from sediments because of anoxic condition in the lower-layer water. The Fenhe...
Persistent link: https://www.econbiz.de/10010805956
Sediment particles passing through the turbine components erode the surface in contact. Gradual removal of base … sediment erosion in hydraulic turbines. …
Persistent link: https://www.econbiz.de/10010808864