Dewatering containers v7 small rev1
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ParkProcess, a subsidiary of ParkUSA, designs and manufacture products including dewatering containers, filtration equipment, oil/water separators, blending/mixing equipment and plants, polymer mixing and injection systems, chemical dosing systems, and other solids/liquids separation systems. The industries served by ParkProcess products include municipal, industrial and oil/gas markets. The municipal industry is served through ParkProcess representatives in the US and Canada, while the industrial and oilfield markets will be handled directly by ParkProcess.
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Dewatering containers v7 small rev1
- 1. DewateringContainers Collect, dewater, transport & dump with a simple cost effective method. www.ParkProcess.com
- 2. What are Dewatering Containers? Dewatering containers consist of a water tight box, an internal filter system and drainage ports. Removable Filter Basket Basket to Container Fastener Stiffening Rib Expanded Metal Sides Filter Cloth Water Tight Container Drainage Port www.ParkProcess.com
- 3. The Purpose of the Dewatering Container Purpose: To reduce the cost of disposal by separating liquids from solids Reduce transportation costs – no hauling of water To meet federal or state requirements Recover the liquid as a product Clarify the liquid phase Dewater: Fly ash, mud, sewage, septage, slurry, liquid waste, food processing waste, pulp, grit, chemical waste, drill cuttings, clarifier bottoms, DAF sludge, lagoon sludge, storm water waste, cooling tower sludge, manufacturing liquid waste, industrial waste, construction site waste water, cement waste, grease trap waste and sludge from a host of other applications. www.ParkProcess.com
- 4. Container Styles Self-Dumping Hopper (Handled by Forklift) Front Loader (Handled by Garbage Truck) Roll Off (Handled by Roll Off Truck) www.ParkProcess.com
- 5. Dump Hopper – Handled by a standard forklift Front Loader – Handled by a garbage truck Roll-Off – Handled by a roll-off truck Container Operation www.ParkProcess.com
- 6. Available Models - Container with permanent filter (Support Panels – Perforated Plate) - Container with disposable filter (Support Panels – Combination of Perforated Plate and Expanded Metal) - Container with permanent filter for use with flocculated sludge (Supported Panels – Expanded Metal) www.ParkProcess.com
- 8. GritCats are dewatering boxes with reusable filter media. The GritCat is designed to be used with gritty, or sandy type waste streams that typically do not require the use of a coagulant or flocculent for dewatering. Other types of waste made up of large particles can also be used in the GritCat, i.e. stringy and fibrous solids. Applications: Bar Screenings Hydrocyclone Underflow Grit Screening Devices Sand Screws/Screw Classifiers (other sizes available upon request) For gritty, sandy solids www.ParkProcess.com
- 9. GeoCats are dewatering boxes that use disposable filter media. The GeoCat is designed to be used with sticky, slimy, slightly oily, non-uniform, non-specific, colloidal, or simply hard to dewater sludge where flocculation is not an option. The GeoCat is also useful for dewatering operations in which the residual sludge cake would present a clean-up issue, as the disposable filter is discarded with the filter cake. Applications: Vac Truck Waste Sumps Grit Removal Devices Catch Basins Lift Stations Sizes: DH 1-5 cubic yards FL 2-4 cubic yards RO 15-30 cubic yards (other sizes available upon request) For non-uniform, fine and difficult to dewater solids www.ParkProcess.com
- 10. AquaCats are dewatering boxes with permanently mounted plastic filter media. The AquaCat is designed to be used with light gravity sludge and slurries made up of very fine particles that require the addition of a flocculent for effective dewatering. Applications: Water Waste Treatment Plant Sludge Aerobic Digester Sludge Clarifier Sludge Racetrack Sludge Arsenic Sludge Alum Sludge Sizes: DH 2-5 cubic yards FL 3-6 cubic yards RO 15-40 cubic yards (other sizes available upon request) SBR Sludge MBR Sludge WTP Sludge Waste Hauler Sludge Septage Grease Trap Waste For application requiring the addition of polymer to condition sludge prior to dewatering www.ParkProcess.com
- 11. Different Capacities Available Capacity is calculated by the amount of water that will fill the hopper in cubic yards. Actual cake capacity will be less because of the internal filter support system which takes away from usable cake volume. Dump Hopper Front Loader Roll Off www.ParkProcess.com
- 12. General Sizing of Dewatering Containers May be influenced by – Amount of sludge to be dewatered Size restrictions at facility Equipment available to handle the dewatering container Cost of the container www.ParkProcess.com
- 14. Polymer Blending and Injection System BATCH MIXING SYSTEM Batch Tank System Advantages: • Added time needed to “uncoil” the long chain of polymer molecules • More effective reaction with sludge solid particles • Cost savings over a long period of use www.ParkProcess.com
- 15. INLINE MIXING SYSTEM Advantages of the inline system: • Small compact systems for confined areas • Low initial cost • More time effective due to instant mixing Polymer Blending and Injection System www.ParkProcess.com
- 16. General Information PolyCat & MixCat Polymer needs to be diluted to a 0.5% solution Most sludge flows to be treated are in the 50-100 gpm range Most dosage rates of polymer will be in the 100-200 ppm range Dosage Rates 1% sludge - 100 ppm 1.5% sludge - 150 ppm 2% sludge - 200 ppm Polymer Lab tests tend to produce better results than field results www.ParkProcess.com
- 17. GritCat Filter media is cleanable and reusable Variety of choices of filter media in different mesh sizes Stainless steel wire mesh Polypropylene mesh Nylon Mesh Polyester Woven Filter media type and mesh should be chosen per application Filter media is typically cleaned with water hose or pressure washer Filter media comes in panels and can be removed for extra cleaning or replacement General Information www.ParkProcess.com
- 18. GeoCat Disposable filters are typically made of non-woven geo-textile available in different weights Customer needs to ensure landfill will accept the filter bags Makes clean-up after dumping easy Installation of new filter bags is a quick operation Before dumping the filter media, bags hanging over top rails are unhooked and thrown over the filter cake Will filter some waste streams that can't be filtered by permanent filter General Information www.ParkProcess.com
- 19. AquaCat A WWTP produces 1/50 of its MGD in sludge 1 MGD plant is limit for 1 dewatering box Most WWTP sludge to be dewatered is in the 1%-2% range Formula – Gallons of 1% Sludge / 700 = minimum cubic yard capacity of Aquacat Always a good idea to have a sample of sludge sent in to be tested to determine best polymer and dosage rate Oversize container for less frequent dumping General Information www.ParkProcess.com
- 21. Weight Figures Weight capacities of dewatering boxes Dump Hoppers: max capacity 6,000 lbs. Front Loaders: Normal max capacity 5,000 lbs. (depends on the particular garbage truck) Roll-Offs: Cake Weight Capacity is related to legal load limit for highway (40,000 lbs. is a high number) For Gritty Sandy Waste – 50% Solid Cake weighs – 2,500 lbs./yd. For Flocculated Bio Solids – 15% Solid Cake weighs – 1,600 lbs./yd. For other Dewatered Waste – The weight depends on Specific Solids in the Cake. Total load can’t exceed capacity of container www.ParkProcess.com