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Package Wastewater Treatment Systems

With our award-winning partner contractors, Marolf can design & build all in-house
Click to Call (800-282-6856)
Marolf pioneered the use of the extended aeration wastewater treatment process in small to medium sized pre-engineered wastewater treatment plants.
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Marolf  Environmental, Inc. was founded in the 1920’s and we have been a U.S. manufacturer of wastewater treatment plants since the 1950’s. 
Marolf pioneered the use of the extended aeration wastewater treatment process in small to medium sized pre-engineered wastewater treatment plants. 
Internationally,  Marolf is well known in Mexico, Central and South America and the Caribbean.

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Marolf Environmental, Inc., can supply you with the technology and mechanical equipment to meet the needs of your chosen wastewater treatment process by using pre-manufactured, quality controlled precast tankage, as well as, built on site structures.
Of the 5,000 wastewater treatment plants permitted in the State of Florida U.S., almost 3,000 were designed and built by Marolf over a span of four decades. There are many features of wastewater plant design that are essential to successful, trouble free performance: specialists must perform reliable design of WWTP(S). Critical design features include the shape, depth, volume of the tanks, inlet, outlet, and aerator placement, hydraulic and organic loading, which are all essential to proper mixing and settling.
Modular, pre-assembled wastewater treatment plant components allow for simple, fast on-site set up. With rectangular tankage layout, significant economies can be realized using the common wall construction techniques found in Marolf plants. Thoughtful design of the initial plant allows expansion through a logical and space efficient addition of tankage and/or process modification. 

Marolf wastewater plants use elementary treatment processes that
  • are easy to understand and access
  • are operator friendly
  • feature equipment that is easily serviced. 
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Why Marolf?


Plant Advantages
  • Odor-free, quiet
  • Saves 50% installation time
  • Saves 20-50% in power costs
  • Expandable - reduces investment
  • Dependable delivery times
  • Below or above ground installation
  • Meets pollution control codes
  • Efficient - 94%+ BOD removal
  • Sizes range from 15,000 to over 1 million gallons/day
  • Factory trained preventative maintenance schedule
  • Certificate of Performance by the National Sanitation Foundation
  • One year warranty on mechanical equipment
  • Automated for minimum attention
Pre-Cast Advantages
  • Cost 15-20% less than steel or cast in place concrete
  • Lifetime Durability - No Rust
  • Strong - 6000 psi
  • Rigid - modular designs
  • Pre-shrinking assures a crack-free structure
  • Rectilinear - takes less space around tanks
  • Expandable - design construction simplifies additions
  • Usable for storing most liquids and dry materials
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(800) 282-6856 ~ info@marolf.com 
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  • Wastewater Treatment Systems
  • Lift/Pump Stations
  • Fabrication
  • Underground Utilities
  • About
  • Contact