Publisher: Bachudo Science Co. Ltd

Activated Sludge Process Simulator Asp-Sim, Part-1: Bod and Temperature Model.

A. A. Adamu, Ify. L. Nwaogazie
KEYWORDS: Simulation, BOD, temperature, activated sludge process, and Visual Basic

ABSTRACT:

The most commonly used biological treatment of municipal and industrial wastewater is the Activated
Sludge Process. The design of activated process is usually done manually; this is often difficult and
susceptible to errors due to the large number of equations involved (which call for approximations and
round off errors). Also, the determination of the effects of changes in design parameters are very difficult
and time-consuming for manual computations. This paper therefore employs the Visual Basic 6.0
programming for design and simulation of completely mixed activated sludge (CMAS) process.
Algorithm and flow chart based on kinetic model were used for developing the Visual Basic code, ASPSIM.
The code was tested using a design problem from standard text book. Results obtained proves
that the Visual BASIC 6.0 program ASP-SIM is a useful tool for predicting the effect of temperature on
design and operation of completely mixed activated plant design and operation.



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