What’s New in BioWin 6.

0
 Introduction
▪ This document provides a quick overview of new features in
BioWin 6.0
▪ Two main areas:
1. Model Additions
2. Usability Upgrades
▪ Model Additions ▪ Usability Upgrades
▪ Chemical Phosphorus Removal ▪ Drawing Tools / Undo
▪ Sulfur (Biological, RedOx, etc.) ▪ Excel Reporting
▪ Industrial Organics ▪ Variable Naming / Sorting
▪ CEPT ▪ Element Tags
▪ Iron RedOx ▪ Table Transposition
▪ P Recovery (Brushite, Vivianite) ▪ Optional Alarms
▪ Cellulose ▪ More Example Flowsheet Templates
▪ Source Separated Organics ▪ Set All Parameters Default
▪ Metal Salt Sol’n Densities
▪ m3/hr Flow Units Option
▪ Wet Tonne Sludge Cost Option

2
 Introduction
▪ For more details on topics, references to relevant sections of
the BioWin Help Manual are provided
▪ The BioWin Manual is provided in two forms:
1. As a PDF (default install location is C:\Program
Files(x86)\EnviroSim\BioWin 6.0\Manuals)
2. In “Windows Help” format from within BioWin

▪ To Use PDF ▪ To Use Windows Help

▪ Open it from directory above ▪ Select Help > Contents & Index
▪ Or copy it to any other location of ▪ Click Help button
your choice (e.g. Desktop, My ▪ Press F1 key on your keyboard (context-
Documents) sensitive method; will open a relevant topic in
the manual)
Introduction
▪ Example Manual reference:
Model Reference > Chemical Precipitation Reactions > Chemical
Phosphorus Removal with Iron Salts
Model Addition - Sulfur
▪ Extension of what has been in PetWin for several years
▪ Sulfide-oxidizing bacteria
▪ Sulfate-reducing bacteria (multiple types)
▪ Potential hydrogen sulfide stripping
▪ Iron-sulfide (FeS) precipitation
▪ Model iron addition for H2S
control

Manual reference:
Model Reference > Biological/Chemical Models > Sulfur
Modeling
Model Addition – Industrial Organics
▪ Based on original Alison Baker PhD (~1994, McMaster)
▪ Four new state variables for industrial components
▪ Mixed removal pathways – stripping and/or biodegradation
▪ Default settings for industrial components mimic xylene, phenol,
benzene, and toluene
▪ Biodegradation according to inhibitory Haldane kinetics

Manual reference:
Model Reference > Modeling of Industrial Components
Model Addition – Chemical Phosphorus
▪ New P removal mechanisms (hydrated metal oxides)
▪ Based on EnviroSim-sponsored research
▪ Extensive calibration for wastewater systems
▪ Overcomes weaknesses of old “WEF model” (e.g. fixed Me:P
stoichiometry)
▪ Can have simultaneous ferric / ferrous / alum inputs

Manual reference:
Model Reference > Chemical Precipitation Reactions > Chemical Phosphorus Removal with
Aluminum Salts
Model Addition – Chemical Phosphorus
▪ Updated P removal mechanisms (hydrated metal oxides)

Manual reference:
Model Reference > Chemical Precipitation Reactions > Chemical Phosphorus Removal with
Iron Salts
Model Addition – CEPT
▪ Option to model colloidal COD / metal interactions
▪ Model can convert non-settleable colloidal COD to settleable particulate
COD in the presence of hydrated metal oxides (HMO)
▪ Process will also reduce potential adsorption of P on HMO
▪ Ideal or model clarifier can then be used to mimic increased solids and
BOD removal

Manual reference:
Model Reference > Chemical Precipitation Reactions > Modeling Metal-Colloidal Coagulation
Reactions
Model Addition – Iron RedOx
▪ Option to model iron oxidation / reduction reactions
▪ New ferrous input (as either ferrous chloride or ferrous sulfate)
▪ Ferrous oxidized to ferric in aerobic environments
▪ Ferric reduced to ferrous in anaerobic environments
▪ Option to track iron-based precipitates {i.e. FeS and vivianite
[Fe3(PO4)2]}

Manual reference:
Model Reference > Chemical Precipitation Reactions > Iron RedOx Reactions and Precipitation
of Vivianite and FeS
Model Addition – Options for P Recovery
▪ Improved tracking of Ca2+ and Mg2+
▪ Previously Ca2+ and Mg2+ only available throughout the flowsheet via
input of soluble influent concentrations
▪ Underestimated the amounts entering digesters via solids streams
limiting the amounts of potential precipitates
▪ Model updated to include Ca2+ and Mg2+ in biomass (taken up as part of
“synthesis ISS”) and influent degradable solids (XSP)
▪ Additional sinks for P
▪ Vivianite formation
▪ Struvite formation as in previous versions of BioWin but no longer Mg2+
limited!
▪ Calcium phosphate precipitate (as Brushite)
▪ Lowers return stream soluble PO4 to levels typically observed

Manual reference:
Model Reference > Chemical Precipitation Reactions > Precipitation of Brushite, Hydroxy-
Apatite and Struvite
Model Addition – Cellulose
▪ Cellulose tracking
▪ Influent unbiodegradable particulate material split into two
components: cellulose and non-cellulose
▪ Separate COD:VSS ratios for each
▪ Helps to fine-tune sludge production and digester performance
▪ Enables modelling of cellulose recovery

Manual references:
1. Model Reference > Biological/Chemical Models > Activated Sludge Processes > Growth
and Decay of Ordinary Heterotrophic Biomass > Stoichiometric Parameters
2. Model Reference > Definition of Non-State Variables
Model Addition – SSO
▪ New input for SSO
▪ State variable (CODP-XEO) for adding particulate degradable COD (e.g.
Source Separated Organics)
▪ Has specific COD:VSS; added as a separate input to avoid conflicts
with municipal wastewater characteristics
▪ Option to include N and P
▪ Constant or time-varying, as with any BioWin input

Manual references:
1. Model Reference > Biological/Chemical Models > Hydrolysis, Biological adsorption,
Ammonification and Assimilative denitrification
2. Model Reference > Definition of Non-State Variables
Usability Upgrade – Drawing Toolbar
▪ UNDO button!! Use for accidental element deletion, moving, etc.
▪ Buttons for copying pipe format from one pipe to others
▪ Buttons for aligning flowsheet elements (vertical or horizontal
centers)
▪ Buttons for spacing flowsheet elements evenly (vertically or
horizontally)
▪ Buttons for flipping flowsheet element images (horizontally or
vertically)
▪ Button for copying selected element(s)

Manual reference:
General Operation > Main Simulator Window > Toolbars > Flowsheet Tools
Usability Upgrade – Report to Excel
▪ Automatic rapid generation and export of data, charts, etc. to Excel
▪ Ideal for generating Mass Balance tables to use in PFDs
▪ Preconfigured templates are customizable
▪ Can incorporate “post-BioWin” calculations (e.g. MLVSS/MLSS, COD/BOD)
using Excel formulas
▪ Option for including both steady state and dynamic simulation databases
▪ Can include BioWin charts – these are converted to Excel charts with data

▪ Report to Word still available

Manual reference:
Data Output (charts, tables, reports) > Creating Project Reports > Creating an Excel Report
Usability Upgrade – Report to Excel
Usability Upgrade – Report to Excel
Usability Upgrade – Variable Naming & Sorting
▪ Variables and parameters renamed for improved consistency
▪ Allows for simpler alphabetical sorting

Manual reference:
Model Reference > Definition of Non-State
Variables
 Usability Upgrade – Flowsheet Tags
▪ Customizable element-specific information
▪ Information updates with simulations
▪ Can contain state, combined, and element-specific variables

Manual references:
1. General Operation > Customizing BioWin > Customizing the Project Appearance > Drawing
Board
2. General Operation > Customizing BioWin > Customizing the Work Environment > Default tags
3. General Operation > Managing BioWin Projects > Setting Project Options > Drawing Board
Options
Usability Upgrade – Flowsheet Tags
▪ Customizable element-specific information
▪ Can control location (above, below elements)
▪ Can replace flowsheet icons if desired
Usability Upgrade – Integrated Influent Specifier
Usability Upgrade – Integrated Influent Specifier

Tabs to view COD, N, P speciation

Usability Upgrade – Transpose Tables
 Usability Upgrade – Optional Alarms
▪ As part of the project
options, select which
alarms are active

Manual reference:
General Operation > Managing BioWin Projects > Setting Project Options > Alarm Options
 Usability Upgrade – Set All Parameters to Default
▪ Use to upgrade older models to Version 6

Manual reference:
General Operation > Managing BioWin Projects > Specifying Project Model Parameter Values
Usability Upgrade – Set All Parameters to Default
▪ Specify which parameter sets to update
Usability Upgrade – Solution Densities
▪ For metal salt input streams

Manual reference:
Model Reference > Chemical Precipitation Reactions
 Usability Upgrade – Additional Flow Units
▪ Cubic meters per hour option for smaller systems

Manual reference:
General Operation > Managing BioWin Projects > Setting Project Options > Unit System
 Usability Upgrade – $ per wet tonne sludge costs
▪ Third sludge disposal cost option added

Manual reference:
Operating Costs in BioWin > Operating Costs > Sludge
Usability Upgrade – More Examples!!
▪ BioWin Cabinet reorganized and greatly expanded with additional examples
Enjoy Using BioWin 6.0

support@envirosim.com