Bulk Water Treatment

WSSA’s bulk water services range from small rural water schemes with basic water treatment requirements to large regional schemes requiring some or all of the following services and expertise:

* Extraction (springs, rainwater harvesting, boreholes, rivers and dams, reuse)
* Pre-chlorination – for algae and biological growth control as well as the removal of dissolved iron and manganese
* Dissolved air flotation – for removal of suspended solids, algae and oils using various flocculants
* Flocculation – to improve coagulation and for larger floc formation
* Sedimentation – for solids settlement and separation
* Filtration – for removal of remaining suspended solids and carry-over floc
* pH correction, softening and addition of fluorides
* Disinfection – either chemical or ultraviolet (UV)
* Booster disinfection – within a bulk distribution network
* Backwash treatment and chemical recovery
* Automation, control and SCADA systems



In some cases, and depending on the final usage requirements, more advanced treatment is called for, in which case solutions may include ultra filtration membranes, GAC filters (activated carbon), demineralisation and remineralisation, ion exchange and ozonation.

WSSA’s vast experience means that we are familiar with all proprietary equipment and enhancements incorporated in most water processing and treatment plants and we are able to use this knowledge to optimise plant performance and availability.

 

Latest News

Nseleni crocodile becoming a safety risk

At the Nseleni water treatment plant there is a 1.5 meter crocodile that is becoming more and more of a safety risk.  He found his way into the sludge dams some time ago, and has since then made the area his home.

The local Wildlife Centre have already tried several methods to try capture the animal, but have so far been unsuccessful.

Read more...