The Kraken Filter - Stormwater Treatment

The High Capacity Kraken® Filter is a state-of-the-art stormwater treatment system utilizing advanced membrane filtration, ensuring a high level of removals for total suspended solids (TSS), phosphorus, nutrients, metals, trash, and hydrocarbons.

The High-Capacity Kraken® Filter is a state-of-the-art system utilizing advanced membrane filtration, ensuring a high-level of removal for not only TSS, but also metals, trash, nutrients, and hydrocarbons.

At the heart of the Kraken are the filter inserts. A 30” tall filter has over 170 sq ft of surface area, allowing it to treat 17 gpm at a loading rate of only 0.1 gpm/sf.

Available in vault and manhole configurations, the Kraken filter inserts are lightweight, and reusable, providing maximum performance and minimum maintenance.

• During the fill-up process, an integrated interior riser tube prevents flow through the membrane filter until the water level nears the top of the filter. This ensures loading is evenly distributed over the vertical height, maximizing efficiency.
• Membrane filtration begins when the water level reaches the top of the membrane filters. Treated water then passes down the riser tube, collects in the underdrain manifold and flows to the discharge chamber.
• An optional internal bypass is available with most system configurations. When flows exceed the treatment capacity of the system, the water level rises and goes into bypass. High flows are conveyed from the pretreatment chamber directly to the discharge chamber to prevent scouring of fine sediments captured within the filtration chamber.

FEATURES

High surface area membrane filtration

Self-draining filters

Optional internal bypass

Lightweight, rinsable, reusable filters

BENEFITS

Superior pollutant removal in a small footprint

Extended filter life

Eliminates the need for a separate bypass structure

Fast, easy maintenance

The High-Capacity Kraken Filter has been evaluated by some of the most stringent stormwater technology evaluation organizations in North America, including:

• New Jersey Department of Environmental Protection (NJDEP) Certification
• New Jersey Corporation for Advanced Technology (NJCAT) Verification

• Vault
• Manhole
• Curb Inlet
• Grate Inlet

• Easily cleaned with a standard vacuum truck, and reusable filter can be cleaned with a standard garden hose.

• Contech has a network of Certified Maintenance Providers to provide maintenance on the Kraken Filter and other stormwater BMP’s.

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