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ADC Drainage
  • Home
  • About Us
  • Services
    • CCTV Surveys
    • High Pressure Water Jetting
    • Silt Pusher
    • Specialist Works
    • Relining
    • Maintenance
    • Asset Management
  • Clients
  • Case Study
    • Case De silting
    • Case Dewatering
  • Careers
  • News
  • Contact Us
    • Map
    • Copyright
    • Site map
    • Privacy
  • Client Section
Case Study: De-Watering 250m Dyke
Client: Black Sluice Internal Drainage Board
Location: Boston, Lincolnshire

ADC has invested in and utilised the latest de-watering technology (from Denmark) to solve a 250m dyke clearance problem, saving the client time, money and massively reducing landfill.

De-watering Case Study

The key advantages of using ADC’s process:
  • Reduction of the amount of waste removed by between 75% to 95%
  • Less material dumped at landfill sites, better for the environment
  • Savings on Tanker transportation costs, less transportation emmissions
Client contacted ADC

ADC were contacted by Ian Watts the technical engineer/team leader for Black Sluice Internal Drainage Board (BSIDB) to de-sludge a 250m meter section of Fenland Dyke on the outskirts of Boston in Lincolnshire. BSIDB is responsible for 34 pumping stations and the maintenance of 500 miles of watercourses within the area.

he problem: 250m Fenland Dyke with limited access

The 250m section had limited access and was unable to be cleaned by conventional means. Also the scale and cost of the operation to remove the wet sludge with many jet vac journeys to specifically designated landfill sites was too big.

The project solution: De-watering onsite.
Pre-project: Survey and planning

ADC’s experienced management carried out an extensive survey and put together a project plan

Stage 1: Damming the section

With limited access the dyke section could not be cleaned by conventional means so both ends of the Dyke section were dammed and the water over pumped to reveal the sludge and debris below.

Stage 2: Sludge removal

Two conventional jet-vacs were used to remove the wet sludge and a team of men were placed in the dyke to work the suction hose.

Stage 3: De-watering (Separating the solid and water)

Once a jet-vac was filled, the sludge was transferred via the Moos polymer make up and dosing unit which causes the separation between the solid and water fractions on-route to the Moos roll-on-off AVC de-watering container where the de-watered solids form a dry cake.

Stage 4: Water returned

The water fraction or permeate is then allowed to return to the water course behind the gang working the wet sludge to the jet vacs.

Stage 5/6: Dry caked silt is disposed

Once the de-watering process has finished the cake is then transported for disposal and the process is repeated.

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Click HERE for silt pusher information!

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