Treating Borehole Water and Polishing Municipal Water to Improve Water Quality for Bottling

We provided a Namibian beverage manufacturer with a cost-effective solution to treat their borehole and municipal water that was not up to bottling standard.

Bottled Water

Water quality is of utmost importance to beverage manufacturers, given that up to 98% of the final products consist of pure water. As a result, beverage manufacturers are under constant scrutiny to ensure that the water they use meet relevant water standards. Often, stringent water treatment is required to get the water to these standards.

A Namibian beverage manufacturing and distribution company was looking to treat their borehole water to meet their stringent specifications.

In response, our team designed and assembled a water treatment plant that treats groundwater from their borehole and polishes water from their existing municipal supply. This plant includes pre-filtration and reverse osmosis to treat the water as efficiently as possible.

Borehole water treatment


Firstly, water is supplied under pressure to the pre-filtration stage. A set of cartridge filters removes suspended matter before the water proceeds through the activated carbon bed. Here, the activated carbon eliminates organics, residual chlorine and other contaminants. The final stage of pre-treatment is UV disinfection. This ensures that all microbial content is removed.

As it is important that the filter tanks remain sanitized at all times for this type of application, the pre-treatment chain is fitted with a pump to circulate water through the filter holding tank when full.

Reverse osmosis

Next, the reverse osmosis system draws water from the filtered water tank and removes all unwanted minerals. Right at the end, however, a small portion of these minerals is re-introduced into the water to balance it.

Moreover, this plant delivers brine that is of a high enough quality that it can be collected and used for washing and rinsing of the floors.


Once the solution was implemented, it delivered a minimum of 6 000L/hour of high quality potable water. This water is now being used efficiently in the beverage production facility. What's more, a small portion of the brine is recovered during treatment, which improves the overall efficiency of the plant and allows for only minimal wastage.

To learn how WPS can help solve your company's water challenges, contact us or visit our website.