Dewatering Containers are water tight boxes that have an internal porous structure supporting a filter media, along with drain ports to allow the filtered water to escape. The most common type of dewatering container is based on a roll-off box design, although any type of container that is water tight can be made into a dewatering box. This includes containers that are commonly referred to as self-dumping hoppers and front loaders.


ParkProcess is a leading supplier of industrial filtration and separation systems. Our bag filter technology includes; single bag filter housings, multi-bag filter housings, duplex bag filter systems, and engineered to order bag filter systems. High quality housings are designed to be user friendly and simple to operate, offering an economical way to remove dirt, scale, grit and other contaminates from downstream processes. Bag filters are available in a variety of media; nylon, polyester and polypropylene felts, multi-filament material, cotton mesh, teflon, and gore-tex. Available sizes include ranges from 0.5 micron to 2000 micron.


An Oil/Water Separator is a device for separating and removing oil from water. Enhanced Gravity Separation is an economical method that utilizes coalescing plate technology that accelerates the process which oil and water do naturally, separate. The process occurs without any moving parts and is based on principles consistent with gravity and buoyancy.

The oil/water separator contains an oleophilic (oil-loving) media through which the contaminated water flows. The oil in the water coalesces on the coalescing media forming progressively larger oil droplets. The droplets then float off the media and accumulate at the surface level of the separator. Oil accumulating at the separator is safely detained until removal and properly disposed of.


ParkProcess manufactures both batch and inline polymer make-up systems. These systems are equipped to mix neat polymer and water, injecting the diluted solution into a system provided static mixer for inter-reaction of polymer and sludge, and providing a thoroughly conditioned sludge ready to be dewatered. These systems are used for the flocculation of waste water, sludge, silt laden water, storm water, and other waste streams period.


Eductors are simple devices with no moving parts that are used to convey solids, slurry and mix solids with liquids, and pump liquids.

The Venturi effect is a particular case of Bernoulli's principle. Fluid under high pressure is converted into a high-velocity jet at the throat of the convergent-divergent nozzle which creates a low pressure at the point between the two. The low pressure draws the suction fluid, gas or solid into the convergent-divergent nozzle where it mixes with the motive fluid and is ejected out the divergent end of the eductor.

What We Stand For!

At Park Process we're proud to offer a wide range of innovative and unique products that serve a variety of industries. Please contact us with any questions you might have about our dewatering solutions!

3D CAD Design and Construction

We use 3D Cad drawings as the core tool for planning our system solutions. We achieve many benefits from the use of this engineered software including the ability to integrate modular systems and conceptualize complex designs, as well as to detect potential problems very early on in the production process.

The 3D drawings also serve as documentation prior to the assembly process and clarify the final system layout to us and our customers.


For more information

Sludge King

Park Process introduces our newest dewatering design - The Sludge King This unit incorporates several improvements over standard dewatering containers.

In The Round

The horizontal sludge-dewatering system from In The Round Dewatering has a stainless steel drum with perforated tile lining. The drum is mounted on a roll-off frame for easy transportation and unloading.

Water trays allow for containment of discharge water. An 18,000- to 25,000-gallon batch is mixed with polymer before being filtered in the rotating drum, driven by a 1/2 hp variable-speed electric motor with a heavy-duty chain and sprocket.

The turning eliminates crusting and wet pockets, producing uniform, consistent results. The dewatered material dumps easily, and the drum is self-cleaning. Dewatering is complete after one night.

Unit as seen on this page can be rented or purchased at a heavily discounted price.
Please contact us for more detailed information regarding this unit.

If interested please contact us at 



  • Steel drum with self-cleaning PVC Filter tiles with interlocking modular construction
  • Mounted on roll-off frame with integrated tie-down straps for easy transport
  • Unit length is 20’ and 7’6” wide
  • Power requirements: ½ hp


  • Fill time: 1½ — 2½ hours
  • Run capacity: 18K — 25K gallons
  • Can be filled multiple times before rotating
  • Operating speed one revolution every 2 hours
  • Maximum speed - two revolutions per hour
  • Dried solids:
    • Sewage Sludge range 18% — 24%
    • Septic Sludge range 20% — 30%
    • Grease Trap waste usually runs between that of sewage and septic sludge
  • Typical dewatering time is overnight
  • Dryness greatly impacted by exact conditions and polymer used, but no liquid remains when finished. Dried solids typically 4 — 7 tons

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