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 realistic controlled fires.
The result was that they have a huge run off situation. To capture the oils around the site the means it has a number of oil interceptors. These drain off to a large
500,000 gallon catchment pits prior to leaving the site.
Picture above shows the main catchment pit with oil. Due to the large amount of waste being used , the company had around 900 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. GWT were tasked with reducing the oil level down to 10 parts per million .
GWT built around the site, dosing systems and aeration tubes into each of the oil interceptors. These dosed bacteria specifically designed to digest the oil within each unit
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 water. Further testing was carried out after the filters. The water is now and has over several years releasing less than 1 part per million off site into a water course.