LewaPlus® - Water system engineering in more than one dimension

LewaPlus® allows for planning of ion exchange (IX) and reverse osmosis (RO) systems under a variety of system configurations, including some unique process configurations only available with Lewatit® and Lewabrane® product technology. The design software is unique in the water treatment industry, since it offers not only the possibility to treat one stream after the other (one dimensional) but design complex treatment systems (two dimensional) with different technologies.

Please note: The software is not available for mobile devices. Visit us under lewabrane.com with your computer, to download the software and to apply for a license.

LewaPlus® key features

  • Not cloud-based which makes the software also available offline and guarantees data security
  • Portable software version with complete functionality available that doesn’t require any Windows administrative rights for installation
  • A single water analysis data entry screen, with RO scaling calculations, suitable for both IX and RO applications
  • Clear interface and reliable and quick results of the calculation
  • Design flexibility: Parameters can be widely modified and values outside the recommended borders are highlighted
  • Comprehensive output of IX and RO system design parameters and effluent (permeate) quality in an easy to manipulate printed output
  • Product scout and cross-reference tool to allow a proper selection of the right resin or membrane type
  • Direct access to technical documentation: Complete set of technical data sheets and material safety datasheets (only IX) for all Lewatit® and Lewabrane ® products as well as technical service bulletins e.g. on membrane fouling, membrane cleaning or system troubleshooting
  • Regular updates to ensure keeping the software up-to-date and further improving its functionality with new features
  • Data exchange to technical LANXESS experts for optimization and final check of your calculation
  • Design water treatment systems just by drag and drop the selected technologies in the requested position
  • Available in 11 languages

Ion Exchange Processes & Functionalities

Various processes that cover most of the usual water treatment applications are included to calculate the design and performance of an IX plant. It helps to simulate the influence on performance and quality at different parameters like salinity and ionic composition of the water, temperature, organic load, throughput, and type of resin. Available IX processes are:

  • Demineralization
  • Mixed bed demineralization
  • Softening and dealkalization
  • Calculation of current operating Ion Exchange performance (Demi check)
  • Condensate polishing

Reverse Osmosis Processes & Functionalities

The Reverse Osmosis  module calculates the design and performance of an RO plant for brackish and seawater applications. It helps to simulate the influence on performance and quality at different parameters like temperature, salinity and salt passage.

  • Immediate calculation of system performance, including feed pressure calculations and permeate quality on a single screen in the RO module
  • Advanced RO system configuration options with automatic calculation of a recommended array for optimization of system sizing
  • Support for hybrid pressure vessel configurations to achieve reduced feed pressure or to equalize permeate flux distribution along the membrane unit
  • Support for split-partial 2-pass designs and various concentrate recirculation options
  • RO normalization tool for data comparison under standard conditions
  • Power consumption module to calculate system power costs for a variety of ERD configurations
  • Post treatment module for pH adjustment, chemical addition (re-mineralization) and degasification of the final product water
  • Adjustable capital and operating cost module using historical industry data as default values. The model follows RO industry conventions for assignment of water costs in project bid situations

How to get a license

If you would like a 60 day trial LewaPlus® software license, please enter your name and your e-mail address in the form below. The license key and the program installation instructions will be sent to your e-mail address. Once LewaPlus® is installed, you will be asked in 30 days if you would like a free permanent license.

Installation instructions

  • Download the LewaPlus® software file provided above
  • Apply for a license key by filling out above form
  • An email with installation instructions and a file containing a license key will be sent to your email address
  • Save this license key file on your computer
  • Double click on the executable file downloaded in step one (Windows administrative rights required)
  • Confirm your agreement for the LewaPlus® license
  • Follow the set up instructions
  • In rare cases it might occur that you do not receive the email with the installation instructions. In that case please check the spam folder of your email account or send an email to lewaplus@lanxess-info.com

Note: It is strongly recommended to install LewaPlus® on a local hard disk. Installing on a network share might cause project database corruption on network failures.

Hardware and software requirements
LewaPlus® is a 32-bit Windows application, It runs on Windows Vista, Windows 7, or Windows 8. LewaPlus® is also compatible with Windows 7/8 64-bit. There are no specific hardware requirements, but it is recommended to use a screen size of at least 1024 x 768 pixel.