Zuchwil SO, Switzerland

kenova AG, KVA Emmenspitz, Zuchwil

Client: KEBAG Location: Zuchwil SO, Switzerland Capacity: Existing plant: 3x 80,000 t/a, 1x 88,000 t/a new plant: 2x 132’000 t/a Duration: 2003 – 2025 Project volume: Existing plant: approx. CHF 108 million New plant. approx. 490 million CHF PDF: KEBAG, KVA Emmenspitz, Zuchwil.pdf

Plant description

In 1976, kenova AG started operations with lines 1 and 2. Line 3 was put into operation in 1990. In 2002, the additional furnace line 4 went into operation. Of the four lines, only three are still constantly in operation. Planning for a replacement (KEBAG Enova) for the existing plant began in 2013. Construction began at the start of 2020. The plant will go into commercial operation in 2025.

Technology

Waste:
Household and commercial waste

Existing plant:
Grate firing
3-pass boiler with SNCR
Electric filter
Activated carbon injection
3-stage wet scrubber
Waste water treatment, FLUWA
2 condensation turbines

New plant KEBAG Enova:
Grate firing
4-pass boiler with SNCR
Electric filter
Gas/gas heat exchanger
3-stage wet scrubber
Steam-gas heat exchanger
Sorbent injection
Fabric filter
Waste water treatment, FLUWA
condensation turbine

Heat utilisation:
Electricity, process steam, district heating

Services

Existing plants

Feasibility study

  • Slag treatment

Strategic planning, preliminary studies, project planning, tendering, realisation

  • Renovation/renewal L1-4
  • Replacement/renovation of waste inlet and grate L1-3
  • Detailed furnace designs L1-4
  • Modernisation of firing chamber and combustion air systems L1-4
  • Boiler renovation L1-4
  • Renovation of boiler ash removal L1-3
  • Replacement of wet deslagger L1-3
  • Partial renewal of E-filter L1-3
  • Renovation of RGR L1
  • Replacement of RGR L2+3
  • Partial replacement of emergency stacks and RG ducts L1-3
  • Renovation of wet stacks L1-3
  • New construction of exhaust air systems for RGR buildings
  • Partial renovation of RGR building
  • Renewal of control technology L1-3
  • Power-to-Heat

Renovation and value conservation planning
2003 to 2025

New plant KEBAG Enova

  • Feasibility study
  • Entire plant
  • Client support for the entire plant, all phases
  • Subplanner ABA/FLUWA
  • Procurement of plant units
  • Construction/commissioning

We value quality!

We are audited and fulfil all the requirements
of the international ISO 9001 and 45001 standards.