Now showing items 11-20 of 41
Analysis of electrochemical noise data with phase space methods
Analysis of the apparently random fluctuations in the current and potential of freely corroding systems has long been seen as a promising approach to the development of better corrosion sensors. Apart from the rate of ...
Removal of heavy metals from wastewater effluents by biosorptive flotation
The search for new technologies to remove hazardous metals from wastewaters has focused attention on the metal binding abilities of different biological materials. Various biomaterials have shown promise as sorbents to ...
Simulated neurocontrol of an autogenous mill with evolutionary reinforcement learning
In this investigation the development of nonlinear control system for an autogenous mill was considered. A symbiotic adaptive neuroevolution algorithm was used in conjunction with a dynamic multilayer perceptron model ...
Degradation of humic acids in a microbial film consortium from landfill compost
Bacterial biofilms are ubiquitous in nature and industrial settings. In this study, a biofilm consortium was enriched in a continuous-flow-cell system using humic acid as the sole carbon and energy source. The degradation ...
Methanogenic digestion of lignocellulose residues under conditions of high-rate acidogenic fermentation
A semicontinuous module reactor was operated under methanophilic conditions to effect rapid solid anaerobic digestion of lignocellulose substances for waste utilization and stabilization. This was achieved by recovering ...
Effect of ultrasonication on the flotation of talc
The natural hydrophobicity of talc was depressed by the use of ultrasonic treatment during flotation. The recovery of the talc decreased by nearly 30% after 4 min of ultrasonic preconditioning. In addition, two talc ...
Process Systems '05
[No abstract available]
Identification of nonlinearities in dynamic process systems
Process modelling is an essential element in the development of advanced (model-based) process control systems, accounting for up to 80% of the cost of development. Often, models based on historic process data are the only ...
The development of a standalone computer simulation tool for the optimization of gypsum recovery at Afmine
This paper describes the development and use of a process simulator to optimize gypsum recovery at Afmine, a small plant near Yzerfontein on the South African West Coast The simulator consisted of models of the major plant ...
Classification of process dynamics with Monte Carlo singular spectrum analysis
Identification of non-linear systems can be a daunting task and in the process industries the problem is complicated considerably by the presence of noise from various sources, non-stationarity of the data and intermittence, ...