Results obtained in a study using the Benchmark Simulation Model No. 1 (BSM1) show that a one-dimensional secondary settling tank (1-D SST) model structure and its parameters are among the most significant sources of uncertainty in wastewater treatment plant (WWTP) simulations [Ramin et al., 2011]. The sensitivity results consistently indicate that the prediction of sludge production is most se...

Interacting The highest storage capacity of a circular tank makes it popular in process industries. Because the varying surface area cross-sections tank, this two-tank level system has nonlinear characteristics. Controlling flow rate liquid is one most difficult challenges production process. This proposed effort critical preventing time delays and errors by managing fluid level. Several schola...

Due to the lack of freshwater resources in Egypt, cement wastewater treatment was performed widen range water used irrigation face massive future scarcity. In this study, integrated fixed-film activated sludge (IFAS) as a biological method. A laboratory pilot established simulation IFAS process. The scale-pilot consists primary sedimentation tank, an tank equipped with air blower, and final set...

This work is concerned with the mathematical analysis of bulk rheology random suspensions rigid particles settling under gravity in viscous fluids. Each particle generates a fluid flow that turn acts on other and hinders their settling. In an equilibrium perspective, for given ensemble positions, we analyze both associated mean speed velocity fluctuations individual particles. 1970s, Batchelor ...

The paper considers the issue of compliance with technological regulations for operation regenerator aeration tank. An analysis features processes in was carried out, factors affecting them were determined, namely intensity aeration, consumption and initial dose activated sludge. To determine characteristics sludge at exit from regenerator, experimental studies conducted a model obtained that d...

Treatment of wastewater containing carbohydrates by Pichia saitoi growing on beet molasses was investigated in a well-mixed continuous tank as an alternative to bulking control.The yeast strain that used in this work was isolated from non-alcoholic beverage industrial wastewater, with a view on TOC removal compared with other strains in previous study.In this research the isolated yeast showed ...