SPEC GROUP

Group of Companies

On Site Services

Wastewater Treatment Works

SPEC offers complete rehabilitation of wastewater treatment works (WWTW) together with new installations.

Services include:

  • Cleaning of digesters on the inside/outside
  • Rehabilitation of complete digester which include all piping, valves, concrete rehab, corrosion protection, bearing replacement etc.
  • Biofilter repairs (mechanical and civil)
  • Humus tank repairs, i.e. bridges, overflow plates, cleaning, piping etc.
  • Inlet works repairs (mechanical and civil)
  • Refurbishment of lime dosing equipment
  • Repairs to overflow tanks (mechanical and civil)
  • Primary sludge pump repairs, including tank cleaning, pump/piping repairs
  • Primary settling tanks repairs, i.e. bridges, overflow plates, cleaning, piping etc.
  • Primary splitter box repairs (mechanical and civil)
  • Scum thickener repairs (mechanical and civil)
  • Supernatant sump repairs and cleaning (mechanical and civil)
  • Sludge drying beds cleaning and repairs (mechanical and civil)

Other types of works offered at WWTW:

  • Removal of weeds in sludge ponds by mechanical methods.
  • Bring in clay soil to protect the floor of the newly cleaned ponds. Use mechanical rollers to get the correct compaction, or alternatively lay HDPE lining in ponds
  • Building new bundwalls in these ponds to utilize the ponds for smaller units
  • Install handrails around ponds for safety reasons
  • Build concrete walkways around ponds
  • Manufacture and install access walkways all around the treatment works
  • Clean area to WWTW standards


Archimedes Screw complete - Fish Water Flats PE
Archimedes Screw complete - Fish Water Flats PE
Biofilter after temporary repairs - Belmont Valley WWTW
Biofilter after temporary repairs - Belmont Valley WWTW
Biofilter before repairs - Belmont Valley WWTW -
Biofilter before repairs - Belmont Valley WWTW -
Repairs of clarifier - Despatch WWTW
Repairs of clarifier - Despatch WWTW
Digestor - before - Belmont Valley WWTW
Digestor - before - Belmont Valley WWTW
Digestor - after - Belmont Valley WWTW
Digestor - after - Belmont Valley WWTW
Cleaning of aeration basin - Despatch WWTW
Cleaning of aeration basin - Despatch WWTW
Repairs to aeration system - Despatch WWTW
Repairs to aeration system - Despatch WWTW
Sludge lagoon - before - Despatch WWTW
Sludge lagoon - before - Despatch WWTW
Sludge lagoon - during cleaning - Despatch WWTW
Sludge lagoon - during cleaning - Despatch WWTW
Sludge lagoon - nearly complete - Despatch WWTW
Sludge lagoon - nearly complete - Despatch WWTW