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Tonka Water


SIMUL-WASH SYSTEM

Simul-Wash is a proven sustained, simultaneous air/water filter backwash system that extends the useful life of filter media, minimizes backwash waste, prevents mudballs from forming and frees nearly all captured filter debris – better than any other backwash method available.

Simul-Wash employs a specially designed baffled backwash trough with a unique quiescent zone for optimum media retention during air/water backwash. Tonka programs each filter control console to ensure that collapse-pulsing action occurs during the Simul-Wash phase of backwash, making maximum use of low air and water rates.

 

Applications:

  • Surface water filtration
  • Groundwater filtration
  • Retrofit/filter upgrades to existing installations
  • New concrete filter construction
  • Tertiary/wastewater filtration
  • Gravity or pressure steel filter construction
  • Package plants

Advantages:

  • 30 years of successful experience
  • Conserves washwater – produces 30% to 50% less backwash volume than other systems
  • Retains media within filter cell – ask about Tonka’s media loss guarantee
  • Low profile – easily fits into most gravity filters without affecting plant hydraulics
  • Used with any manufactured or installed underdrain – existing or new
  • True overflow collection design – solids travel in natural upward direction
  • Removes floatables from filter – no protruding baffles blocking surface travel
  • Prevents mudball formation – collapse-pulsing action scours and pulverizes mudballs before they have a chance to grow by agglomeration

 

DUALATOR FILTERS

The Tonka Dualator series is a family of package gravity filters incorporating aeration, detention and filtration in a single structure.

The Dualator III is a low profile, rectangular filter with integral aerator, detention chamber, and multi-cell filter. The detention chamber provides the necessary detention time, and incorporates internal baffles to prevent short-circuiting. From the detention chamber the flow is collected and routed into a multi-cell filter. V-notched weirs assure uniform flow into each filter compartment.

The Dualator VI is a taller profile, space efficient, cylindrical filter system with an overall height of approximately 23 feet. The Dualator VI incorporates aeration, detention chamber, and an integral four-cell filter. In Northern climates, the Dualator VI is typically installed in a building with the aerator section extending above the roof line, and is designed with an optional pump down feature to prevent freezing.

 

Applications:

  • Dualator III – Iron, manganese, arsenic and radium removal (low profile); additional detention time; operation and backwash visible through access hatches
  • Dualator VI – Iron, manganese, arsenic and radium removal (high profile); extended detention time; can be combined with air stripping applications

Advantages:

  • Proven – meets requirements of Ten States Standards
  • Versatile - can incorporate Tonka Simul-Wash or other water-saving features
  • Customized - can be used with any media type or combination (greensand, silica sand, anthracite)
  • Flexible - can be configured to discharge into a clearwell or be pumped directly from the filter into the system
  • Cost effective – can be automated easily
  • Wide flow range – smaller units (down to 100 gpm) are completely factory fabricated and tested; larger units can be shipped for field erection (up to 2 MGD)

 

For more information visit www.tonkawater.com