Storm water plants

StormFilter is a passive stormwater filtration system that is activated by the water entering a siphon. The filter consists of a tank containing a refillable filter cartridge. The water passes through the filter medium in the cartridge that captures the pollutants. This system is listed as a BAT (Best Available Technology) for stormwater treatment by the US Environmental Protection Agency (EPA).

The filter medium traps particulates and absorbs pollutants, such as dissolved metals, nutrients and hydrocarbons.

StormFilter is available in 2 different configurations: with tanks (built on-site or prefabricated), or drains with filter. The prefabricated and linear tanks and the drains with filter feature “standard” tanks for ease of design and installation, while the built on-site tanks are customised according to need for significant flows. These filters are usually installed underground but they can also be placed above ground.

The cartridge manufactured by Stormwater 360TM is the core of the StormFilter system. The possibility of choosing the filter medium according to the site requirements and the siphon passive functioning maximise its filtration effectiveness and life, making StormFilter one of the most important technologies for stormwater treatment currently available on the international market. StormFilter consists of three compartments: a pre-treatment compartment, a filtration compartment and an outlet bay. StormFilter cartridges are fitted inside the central compartment of the filtration tank.

FILTER MEDIA

PERLITE is a naturally occurring expanded volcanic ash. Its high porosity, honeycomb-like structure and wrinkled surface make perlite highly effective in the removal of fine particles, oils and grease.
CSF LEAF MEDIA is an organic compound obtained from the decomposition of leaves of deciduous trees. It is inert, granular and guarantees an optimum performance in the removal of soluble metals, TSS, oils and grease.
ZEOLITE is a naturally occurring mineral used in several applications related to water filtration. It is used to remove soluble metals, ammonia and organic material.
GAC (GRANULAR ACTIVATED CARBON) This material is known for its micropore structure and large specific surface, which guarantees high absorption levels. When used for stormwater, it mainly removes oils, grease and organic materials (such as pentachlorophenol and TNT).
“IRON INFUSED” It is a recently discovered filter medium. It has an open-cell structure with tiny pieces of iron that facilitate the removal of dissolved phosphorous. It guarantees an optimum performance also in the reduction of soluble copper and zinc concentration, making it ideal for the solution of problems related to water with nutrient load.
PLEATED STRUCTURE The inserts with a pleated structure are mainly designed to control TSS. The insert adapts to the cartridge interior, leaving a free space that can be filled with other filter media in order to combine the insert properties with the soluble pollutant removal capacity of the other medium.