Avoid These Common Mistakes When Choosing Your Wastewater Treatment System

There are a lot of reasons why your plant may be looking at new wastewater equipment supplies in the near future. The addition of new generating capacity is one common reason. For a lot of utilities, adding generation to a site has proven to be simpler than getting permits for greenfield sites. The added generation may be in the form of simple combustion turbines for peak electricity demands or a high-efficiency power plant.

You can be sure that regardless of the type of new generation, it will require additional pure water for processes ranging from power augmentation to direct stream. Another reason why you should consider new equipment is that the staff in your plant may find existing ion exchange units are becoming hard to maintain and even very expensive to operate. Such problems may be compounded by a water supply of a plant that has changed since treatment equipment was specified. The current supply of water may have high levels of dissolved solids and suspended solids compared to what the equipment was designed to handle.

Nowadays, reverse osmosis treatment systems have become popular in more installations and are being used with some poor-quality waters. The top equipment companies continue to improve Ultrafiltration and reverse osmosis systems, increasing the production rates of water and reducing the footprint of the equipment.

Changes in design

If you are in the market looking for water treatment systems or maybe you are preparing specifications for a new treatment plant, you should learn some mistakes that others have done before when it comes to working with wastewater equipment suppliers . Here are some design mistakes you should be aware of and avoid.

Improperly characterizing or specifying the makeup water to the treatment equipment

I cannot overemphasize the benefits of properly characterizing the incoming supply of water before preparing equipment specifications. You should therefore take samples at different times throughout the year and under different operating conditions. You should always remember to measure the total suspended solids and temperature of water or SDI on each sample.

Assuming that the supplier of your equipment knows best

Yes, it is true that wastewater equipment suppliers should know more about the equipment they sell. However, you should never make the mistake of assuming the supplier knows best. There isn’t anything like tunkey. The personnel should stay involved throughout the construction process and during the installation and commission.

Pushing the flux rate

Reverse osmosis membrane specifications have a recommended flux rate. However, the flux rate varies by the temperature and type of water. The higher the flux rate of the operation, the higher the risk of dirtying the membranes and the more you will have to clean them. You should therefore be conservative and use the low end of the recommended flux rate. You should consider the flux rate at the lowest temperature you are likely to have.

Improperly sizing pumps

A pump is an important component of your wastewater equipment supplies and if you undersize or oversize it, the whole system will be compromised.

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