Analyzing Water Quality In Desalination Plants

Analyzing Water Quality

There is drinking or clean water crisis everywhere in the world. More and more countries are turning to desalination of water for drinking as well as industrial purposes. Desalination was not considered a viable option as it was an energy guzzler and used in places where fuel supply was abundant. However, with technology evolving, there are many new methodologies used for desalination which is not only environmental friendly but also consumes less energy.

Many commercial and industrial desalinating units use Reverse osmosis perth to purify the water and meet the demands. Testing the quality of water is essential as it is supplied with potable water to houses by municipals and hence has to meet the quality standards, else can cause health issues says It is equally important to meet the quality benchmark for water supplied to industries too, as poor quality of water affect the manufacturing process and can cause losses.

How to analyze and to test the quality of water

Check parameters of feedwater:
The feed water parameters are temperature, organic carbons present in the water, conductivity, ph., turbidity of water, etc. The regulations for desalinated water states that not only the final water is produced but also the feed water parameters have to be monitored continuously along with the water disposed of by the plant. The feed quality also needs to be monitored to check for anything that might affect the operation or capacity of water produced.

Performance monitoring before treatment:
The plants aim to use chemicals minimally but can have a bearing on the total cost of plant operation due to considerable variations in quality of water that is fed to the plant. The temperature, turbidity, ph., etc. all have an impact on the cost of operation. So, a well-developed process to on what, how and at what frequency to measure has to be in place along with setting automated warnings and corrective actions that have to be taken by the operator.
The automated warning system has to be in place so that when the water feed is beyond the permissible limits, the operator can intervene. Under normal conditions, the control system will manage the variations in water parameters. Automated systems should be adequately controlled else the chances of water parameters going out of spec is very high causing losses for the plants. Parameters for water are selected taking even the equipment safety into account.

Information management systems:
Management of water and the equipment goes beyond analytical measurement. For adequate disinfection, the proper ratio of time and disinfectant has to be calculated based on water parameters apart from alarms for virus ratios. The management systems based on empirical data provide reports on optimization for long-term based on variations as per seasons.

Testing strategy:
The following disciplines are involved in formulating a plan for operating industrial and municipal plants and to minimize costs.
Equipment Selection.
Selection of parameters for the process.
Alarm ratios.
Integrating plant control and other systems.
Acquiring data in real time and generating report automatically.
Plant operation optimization.
Correct settings have to be selected to achieve the required results and to reduce water costs.