Renewable energy


Renewable energy and efficient waste management is both environmentally friendly and profitable. In large and small projects, the most effective and profitable solution is founded on professional design and quality execution. Both trademarks of Doranova.

We help our clients in transforming what has previously been considered as environmental problems, to rational, profitable and sustainable business. Our experts design and deliver solutions for renewable energy and waste management from biogas plants to landfill gas recovery.

In addition to technical design and project execution we serve our clientele with feasibility analyses, permit procedures, environmental impact assessments, due diligence procedures and business planning. We care for the operational reliability of the plants and processes we deliver, throughout their lifecycles.

Biogas plants

We design and build biogas plant deliveries from sub-process deliveries to turn-key projects. Biogas can be produced from majority of organically degradable materials by anaerobic digestion. Suitable raw-materials for the process include agricultural sludges and biomass, source separated biowaste, industrial biowastes and wastewater treatment sludges.

Water- and waste treatment and sludge treatment.

We offer advanced solutions also for water and waste treatment, for sludge and digestate treatment and for industrial wastewater applications. We have delivered numerous wastewater treatment plants based on innovative reverse osmosis solutions for landfill leachate treatment.

Landfill gas recovery

Doranova’s landfill gas profitability system allows clients to benefit from the waste emissions formed in their waste polygons. The solutions are always tailored customer specifically, optimizing cost effectiveness. We also design and contract new landfills and close existing.


Mikko Saalasti

Head of Renewable Energy
name.surname@doranova.fi
+358 44 353 5567

Anne Kujanpää

Chief Project Manager
name.surname@doranova.fi
+358 400 269 145

Doranova designs and builds biogas plant deliveries from sub-process deliveries to turn-key projects. Biogas can be produced from majority of organically degradable materials by anaerobic digestion.

Biogas plant project deliveries

  • Mixed municipal solid waste (MSW) sorting
  • Pre-treatment processes
  • Digestion processes (dry/wet)
  • Hygienization processes
  • Storage tanks

Biogas utilization

  • Biogas pump stations (pressurizing and transfer)
  • CHP equipment (gas engines)
  • Heat plants
  • Biogas upgrading systems and biogas vehicle fueling systems
  • Biomethane liquefaction systems
  • Emergency flares

Digestate usage

  • Production of liquid and solid recyclable nutrients
  • Concentrating digestate to nutrient products
  • Producing process water from digestate

Doranova’s landfill gas profitability system allows clients to benefit from the waste emissions formed in their waste polygons. The solutions are always tailored customer specifically, optimizing cost effectiveness. We also design and contract new landfills and close existing.

Landfill gas analysis

  • Landfill gas quantity and quality surveys
  • Landfill gas test extraction
  • Surface emission analysis

Landfill gas utilization

  • Design of landfill gas extraction systems
  • Technology delivery and commissioning
  • Biogas utilization in CHP use
  • Landfill leachate treatment

We offer advanced solutions also for water and waste treatment, and for industrial wastewater applications. The technology is always selected based on the project and client needs, with cost efficiency in mind.

Water treatment

Doranova’s advanced membrane technologies remove suspended solids, bacteria, virus and majority of soluble minerals from water. The technology is well suited to industrial and municipal wastewater treatment plants and sludge and digestate treatment. Other benefits of the process are size and modularity.

Membrane technologies include micro-, ultra-, nanofiltration and reverse osmosis. The purpose of the process is to remove suspended solids, concentrating selected particle size fractions, separating soluble minerals or producing concentrated products ie. in nutrient production.

Toteutus: unfair.fi & varikas.fi