Leachate Collection, Storage and Treatment (Fig 1)
Leachate collection systems collect surface water through pits, and sub-surface polluted water through collection pipes. Both pipes are navigated to a lower tank. Submersible pumps transfer leachate up to a tank near the roadway for pumping out by an industrial waste disposal tanker. GSM (mobile phone network) messaging is used for tank level indication and pump fault alarms. Further treatment of the leachate may be performed to enable discharge to sewer or waterways.

Water Harvesting, Treatment & Re-use (Fig 2)
Harvesting rain water from a nearby roof area drastically reduces the demand on mains water. An example of this methodology is a truck wash facility which has been designed to collect and store for long periods, lessening the impact on towns mains. This rain water provides a back-up supply to a huge truck wash bay which cleans the fleet vehicles. The wash water on this site is recycled through a “state of the art” treatment process providing four stages of silt collection, oil/water separation, biological treatment, clarification, multi-stage filtration and UV/ozone disinfection, which is ready for re-use in the wash bay. Water is then available for return to the truck wash for re-use.

Sewer Mining Process (Fig 3)
Sewer mining utilises a sewer main cut into and the black-water is collected, extracted and processed for re-use. This sewage naturally needs to be processed in a like manner to a typical Sewage Treatment Plant. Since this process is being used to produce Class A recycled water, it must be passed through a physical barrier, making MBR (Membrane Bio-Reactor) an appropriate treatment process. An MBR will remove bacteria, virus and solids, producing safe water for re-use in irrigation.