The establishment of the car parks as a staple in our society and the increasing amounts of urban developments is causing the number of impervious surfaces to increase rapidly. Impervious surfaces prevent surface runoff from being absorbed into the soil and being naturally treated. Because of this we need to improve the stormwater treatment and management of these areas to prevent this polluted surface runoff from damaging our environment and polluting our urban waterways.

Carparks and urban developments have a high amount of pollutants that all vary. Gross pollutants and Total suspended solids make up a large portion of these contaminants. These TSS substances are organic and inorganic substances produced from a wide range of activities such as high foot and car traffic, pavement wear, vehicle exhaust, construction material and soil and plant litter.  Heavy metals are also in large proportions throughout car parks and urban developments with metals such as Zinc, copper and lead all being in high concentrations. These metals can be toxic to aquatic life and ecosystems and hence need to be removed. Heavy metals are dissolved pollutants and hence require complex tertiary systems to filter them effectively, using complex processes and attachment techniques. Hydrocarbons are also a large issue, with cars and vehicle traffic providing oil pollution that is washed in surface runoff and into our waterways.

Hence due to these wide range of contaminants and dissolved pollutants, complex treatment trains are required. The use of primary, secondary and tertiary treatments are required. Protector’s Ecoprotector is highly recommended to remove all trash and litter that the high foot traffic produces, and combined with a Stormprotector, our high capacity oil separator, to remove hydrocarbons, grease and oil. The use of the Ecoprotector in combination with these secondary and tertiary systems prevents large debris from causing blockages in the further treatment systems, reducing maintenance frequency and overall lifetime costs. Finally the use of any of our tertiary treatments can be applicable in these systems, usually not high in filter numbers, as the dissolved pollutants is not as much of a risk as other pollutants, and hence can be designed as required. The Bioprotector is also a system that can be recommended in urban settings. Due to our aesthetic design and natural filtration treatment techniques that exist in the bioprotector, it is perfect to be placed in urban settings to provide natural filtration, reducing land space and increasing the aesthetic of the setting and stormwater design.


Applications in which this system train will be effective, mainly in conjunction with the BIOPROTECTOR, are considered to be:

  • Urban Settings
  • Shopping precincts
  • Commercial areas
  • Residential Settings
  • Large multi-story and ground level car parks.