Software Perform with New Software

Editor: Ahlam Rais

Lanxess has developed a new normalisation software for analysing reverse osmosis. Performem automatically imports system data from templates in standard process control systems and quickly normalises even large volumes of data.

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The new Performem software can be used to evaluate the performance of a reverse osmosis system and quickly identify faults.
The new Performem software can be used to evaluate the performance of a reverse osmosis system and quickly identify faults.
(Source: Lanxess)

In addition to system data, laboratory measurements can also be entered and displayed alongside each other. To the best of the firm’s knowledge, no other normalisation software offers this level of flexibility, states the company. Programmes like these are often Excel-based and thus cannot conveniently manage and analyse large volumes of data.

The new software also provides a much more detailed graphical representation of process data and normalised values. Normalised values can then be converted to various formats for further processing or analysis if necessary.

The Easier Way to Localise Interference Factors

Whenever membrane processes suffer from falling retention or reduced performance, this could be due to changes in the water quality or temperature, or deposits in the reverse osmosis system. To allow interference factors to be localised more easily, plant operators should continuously document a range of basic parameters such as temperature, flow, pressure, yield, and conductivity. It can also be helpful to measure the pressure drop, ideally between the concentrate stages.

This data should be normalised – in other words, set in relation to a standard condition. This allows operators to see whether the impaired performance can be attributed to the reverse osmosis system or altered feed parameters, adds the company.

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Digitalisation of plant data is one of the focal points and challenges in today’s water management sector. This involves digitalisation of not only large-scale plants, but also medium- and small-scale plants. The collection of plant data in a cloud in combination with remote maintenance makes economic sense no matter what size the plant. The data can be used for process optimisation and troubleshooting – provided that it can also be analysed. The firm mentions that this is frequently a weak point because, in practice – meaning, when the water treatment plant is in operation – huge volumes of data are recorded very quickly, but are rarely subject to any kind of analysis.

Easy Analysis of Reverse Osmosis with New Software

The new software quickly and accurately calculates current plant and laboratory data in relation to a reference point. This makes it easy to establish whether performance is impaired due to changed feed composition or fouling. If fouling, such as salt deposits, is the problem, countermeasures can be quickly implemented so that the plant can continue to run for as long as possible under optimum conditions, concludes the firm.