This client is based on an airport. The company has training facilities providing real time scenario’s. This means that they spread gallons of diesel oil, aviation fuel around and burn it to tackle and put out realistic controlled fires.
The result was that they have a huge run off situation with oil or fuel draining into their water outlet. To capture the oils around the site they have a number of oil interceptors which then drain off to a large 500,000 gallon catchment pits prior to leaving the site.
As shown in the picture above – It shows the main catchment pit with high concentrates of oil. Due to the large amount of waste being used , the company had around 1000 parts per million of oil leaving site. On approaching Geyser, they wanted treatment of all the oil interceptors around the site as well as the main catchment pit shown.
GWT were tasked with reducing the oil level down to 10 parts per million .
We built around the site, dosing systems and aeration tubes into each of the oil interceptors, which dosed bacteria specifically designed to digest the oil that drained into each treatment pit.
For the main catchment pit we installed multiple aeration tubes with dosing of bacteria. In addition we installed specialist filtration pads designed to collect oil but release clean water to leave the site. Further testing was carried out after the filters. The water is now and has over several years been releasing less than 1 part per million oil to water, off site into a water course. A success in Diesel and Aviation fuel treatment.