SIMBA 6

Important Features of SIMBA 6

• Modelling module for the complete hydrodynamic sewer simulation features
  – Wastewater and pollutant transport also within large sewer systems
  – Any biochemical transformation processes by integration of SIMBA water quality models
  – User-friendly interfaces to other modelling blocks
  – Display of results also by animated plan view and longitudinal profiles
• Modules for simplified hydrological modelling
  – Dedicated input and output blocks for long-term simulations
  – Specification of global and non-evenly distributed rainfall and dry weather patterns
  – Rainfall runoff models
  – Translation of flows and pollutants within the system
  – Model block for storage and overflow structures
  – Function for generation of reports and of graphical outputs
• Extended block library Sludge Treatment
  – Various digestion models
  – New blocks for primary clarification and sludge thickening
  – Blocks describing dewatering of sludge
  – New reactor block ’Anaerobic Digestor’, including gas phase
  – Library of interface models (ASM<->ADM)
• New Energy block
  – Calculation of energy requirements, almost automatically, after the process simulation has been completed.
  – For each of the process blocks of SIMBA, a model of energy demand is provided, which can be parameterised and adapted by the user.
  – All data required for calculation of the energy balance is stored automatically during the simulation.
• Visualisation of resource and energy fluxes
  – User-friendly graphical representation of resource fluxes within wastewater systems by providing dedicated functions for the creation of Sankey diagrams
  – Automatic configuration based on the graphical layout of the simulation model
  – Visualisation of water flows, pollutant loads, loads of pre-defined cumulated parameters and constituent matter (e.g. N, P)
• Excel interface
  – Simulation model can be linked to an Excel interface
  – Setting of parameters of a simulation model
  – Specification of a diurnal flow pattern in Excel
  – Simulation control from within Excel; SIMBA and Matlab/ Simulink can be started in invisible mode
  – Accessing simulation results within Excel spreadsheets
• New features in SIMBA 6
• – support of the static design of WWTPs, e.g. according to the German A131 guidelines, by dedicated tools, preparing for detailed planning with dynamic simulation: Dedicated activated sludge model, load scenarios, synthetic influent data - following recommendations of the Central European researchers`simulation group (HSG)
  – representation of control algorithms in a native control language (IEC 61131) for the seamless implementation of planned concepts into real automation systems
  – a new modelling approach for pollutant transport in sewer systems and rivers (Lagrane)
  – a library for interactive simulation (block for manual control, animated visualisation for education, presentation and participation)

Graphical user interface
SIMBA is based on Matlab®/Simulink™ of The MathWorks Inc. It can be used under Windows 2000, XP and Vista operating systems. With the origins of its development at ifak e.V. Magdeburg (Institut f. Automation und Kommunikation) dating back to 1994, SIMBA is used today worldwide for the design and operation of wastewater systems and for education and research. SIMBA can be used without any prior knowledge in programming. The features of SIMBA can be accessed by buttons, extensive graphical block libraries and menus. Preconfigured plant models, ready for use, are available. Using SIMBA, results can be obtained quickly: First select the required model blocks, then, using the graphical interface, connect the blocks according to the treatment process, assign parameter values to the block. In the last step, after simulation has completed, view and analyse the results in terms of flows and concentrations, using the SIMBA Monitor.

Libraries
The model foundations used by SIMBA, e.g. the Activated Sludge Models, Anaerobic Digestion and pollutant transport and conversion models, are provided in open format, using a symbolic notation. These can be accessed and modified using a model editor. Model blocks can be linked conveniently, thus allowing the holistic consideration of wastewater processes. Since SIMBA is an open modelling system, also new models and functions can be easily added by the user. The model foundations in SIMBA include:

• Activated Sludge Models (ASM1, ASM2d, ASM3, ASM1sbr, ASM1tm)
• Sludge treatment (Siegrist, ADM1)
• Sewer system and river water quality models (Qsimp, Lijklema)
• SBML Model exchange format: SIMBA supports SBML (Version 2) model description language, which has been developed in the area of systems biology for the representation of metabolic processes.

Any questions? Please contact our service. Mr. Dr. Ralf Tschepetzki is at your disposal.

e-mail: sim_support@ifak-system.com

Further information concerning wastewater systems you will find at the SIMBA-Portal from the ifak Institut e.V.