JKE has at any one time many types of distinct operational
projects under way.
Please find below details of some of these projects, which help to
demonstrate effectively the variety of equipment, technical expertise
and experience within the company.
Anglian Water waste reduction program:
Problem:
A recently concluded digester cleaning program left up to 3000t of
rag/grit and bio solid material sitting on a number of cake pads.
The only disposal option for the waste in its current state was landfill,
at a huge cost to Anglian Water.
JKE introduced our new mobile high specification screening plant
to Anglian Water. This plant can separate this type of material into
the following 3 x phases.
1. Rag / Plastic / Debris
2. Grit / Sand
3. Screened liquid bio solids
Solution:
The process involves fluidizing the solid waste material, using final
effluent. The fluidized material is then passed through the mobile
screening plant. The first vibrating screen takes out the rag/debris
and plastic phase of the waste, and collects it into a skip. On this
particular waste stream, this accounts for 20% of the total.
The waste material then passes through a cyclone unit.
This unit then removes the grit and sand phase of the waste.
This material then enters the final vibrating screen. The liquid phase,
now grit and sand free, is then pumped back into the treatment plant.
The final grit/sand screen removes any residual liquid from the grit/sand,
and then collects the material in a separate skip. The grit/sand phase
on this particular waste stream accounts for 15% of overall waste
stream.
The screened liquids accounting for up to 60% of the original waste
stream are returned to the treatment where they are de-watered and
recycled to land.
The only phase of the original waste stream now going for commercial
disposal, is the rag/plastic/debris The grit/sand is recycled for
land use / composting, with the screened bio solids recycled to land.