Lagoon management

The Lagoon here also includes the drilling company or chemical plant scum pool, oily sludge ponds, cooling tower sludge pool or ash pond, industrial waste water pond and municipal works artificial lake which needs dredging, as well as landfill leachate pool.

Veolia Industrial Services' years of experience have helped the clients to solve all the problems associated with the cleaning of sludge pools, scum pools or ash ponds. Our advantages are:
  • Predict the workload, cost and time before the work, develop a work plan and strictly enforce the work to reduce the workload of the owners;
  • No need to empty the pool, dredging online without affecting the use of the pool;
  • Reduce wastewater and waste production, as well as disposal costs;
  • Oil recovery;
  • The customer does not need to invest, Veolia prepares the corresponding equipment and service according to the demand.

Sludge treatment includes three stages:

Preliminary preparation: site exploration, sludge analysis

Dredging services

Sludge treatment

  • Lagoon 1
  • lagoon 2
  • lagoon 3



Preparation: sludge mapping

  • Mud and sediment mapping
  • Estimating sludge volume
  • Sampling
  • Equipment: vessels, ultrasonic equipment, mapping equipment and software

Preparation: mud analysis

  • Solid content, specific gravity, organic matter, pH
  • Flocculation experiments
  • Dehydration experiments
  • Technical and economic analysis

Dredging services: underwater robots

  • Remote control
  • Built-in lighting and camera system provides intuitive feedback on the effectiveness
  • Sucking accurately and quickly
  • Can suck particles in 40mm or less

Dredging Services: Mini Dredger

  • Remote control
  • High safety
  • Dredging depth of up to 3 meters
  • No need to empty the pool, online dredging, no effect on the use of the pool


Sludge reduction: pressure filtration

  • Vehicle-mounted pressure filtration equipment
  • Plate press filter
  • Belt press filter
  • Stand-alone capacity of 1 ton / hour (dry mud)
  • Sludge cake with a solid content of 30% -70%
 

Sludge reduction: centrifugal dehydration

  • Configured by condition
  • Maximum capacity per unit is up to 60m3 / hour
  • Solid content is up to 30%