We believe that competitiveness lies in the perfection of individual solutions. That is why we take care of every detail and specialise in providing non-standard, tailor-made solutions.

Our technologies are characterised by the following:

  • low energy consumption,
  • optimum process parameters,
  • simple and minimised operations,
  • durability and long life of equipment.

We offer guarantee and post-guarantee service, trainings and remote monitoring and control of systems.

Co-fermentation of wastewater sludge

EKOLOG designed and built first modern co-fermentation chambers in late 1990s, in wastewater treatment plants in Toruń and Gliwice. So far, in cooperation with our partners, we have built or modernised 13 facilities of a similar kind. Over 10 years ago EKOLOG initiated and has continued advanced works related to co-fermentation of sludge from wastewater treatment plants. The use of fats, floating sludge and other kinds of liquid waste with high calorific value greatly improves the quantity and quality of biogas obtained through fermentation.

Co-fermentation was first implemented in wastewater sludge biogasification plant using fats and floating parts in a wastewater treatment plant in Słupsk (2007). The project was completed by our partners – EKOKLAR (VEKTO) and PROJEKO. The largest biogasification plant designed and built by EKOLOG using co-fermentation is located at the wastewater treatment plant with a capacity of 150 000 m3/d in Shymkent, Kazakhstan.

Since 2016 we have been further developing the co-fermentation technology within the “Fast Track” Operational Programme financed by the National Centre for Research and Development.

BIOSORT ADVANCED highly efficient waste segregation

It is an advanced system of multi-stage, deep segregation of municipal waste, based on the Reuse–Recycle-Recover (RRR) principle. The technology is divided into 3 modules that help to select main fractions from a mixed stream of municipal waste. The fractions mentioned below become a market value following their management and processing from waste:

  • BIOSORT-RECYCLE – pure inorganic fraction – recycled secondary raw materials – paper, plastic, glass etc,
  • BIOSORT-REUSE – contaminated inorganic fraction, processed into RDF with a high calorific value,
  • BIOSORT-RECOVER – subsieve fraction subjected to deep purification and treatment to remove as many mineral and inorganic substances as possible and to prepare the fraction for fermentation (ANADI ORGANICS).

Application of BIOSORT Advanced contributes to:

  • reduction in the quantity of waste sent to landfills to up to 15% of the stream,
  • improvement in the calorific value and increase in the pre-RDF fraction by 20% as compared to the results obtained by traditional methods,
  • achieving 90% purity of organic fraction,
  • separation of mineral fraction.

At present we are executing a contract for building of a modern “Waste Management Centre”. It is going to be the first facility of that kind in the world which will be located at the Kempegowda international airport in Bangalore (India). The facility will be commissioned in the first quarter of 2019 and it will be the first commercial implementation of BIOSORT Advanced and ANADI ORGANICS technologies.

Simultaneously, two waste processing plants are under construction: one with a capacity of 500 tons/day in the Sonipat district in India and another with a capacity of 300 tons/day in Kharkov, Ukraine. Elements of both technologies will be employed in the plants.

Anadi sludge

High-performance proprietary technology of biogasification of wastewater sludge with biowaste is a result of continued works on sludge co-fermentation that has been developed in our company for over 10 years.


  1. Multi-stage cascade disintegration of activated sludge and appropriate preparation of other substrates create optimum conditions for fermentation bacteria, which ensures high effectiveness of the process in relation to biogas production and degree of organic substance gasification. We use commonly available disintegrating equipment. The technology allows the use of activated sludge disintegration by means of THP method proposed by CAMBIO, VEOLIA or Haarslev.
  2. Two-stage fermentation:
    • 1st stage – thermophilic
    • 2nd stage – mesophilic
  3. Multi-functional reactor: sludge tank and gasholder. The end products include biogas transformed into power and heat, and high quality organic and mineral preparation for agriculture or recultivation of urban greenery.

Since 2016 the development of ANADI SLUDGE technology has been co-financed by the National Centre for Research and Development within the “Fast Track” operational programme. We successfully completed the stage of scientific research and will soon complete tests in a semi-technical scale on two container stations in Bydgoszcz Kapuściska wastewater treatment plant. Simultaneously we carry out preparations to build a pilot demonstration station intended for work at various options of sludge and organic waste co-fermentation with a power capacity of 150 kW, located at the municipal wastewater treatment plant near Piła.

Intended launch of the technology in a technical scale in Poland: 2018/2019.

Anadi organics

In the majority of global waste processing plants the subsieve fraction, which constitutes over 50% of the total stream of municipal waste, following costly composting, is sent to landfills, while the existing waste dry fermentation systems are fairly low efficient.

ANADI ORGANICS is an innovative technology of “wet” fermentation which offers utilisation of the subsieve following its fine treatment, according to BIOSORT ADVANCED technology, in combination with different kinds of organic waste and sludge from the region:

  • selectively collected solid and liquid municipal organic biowaste from restaurants, hotels, hospitals, etc.,
  • sludge from municipal and industrial wastewater treatment plants,
  • industrial biowaste from local agricultural and food sector.

The key to ensure efficient and effective fermentation is to prepare the subsieve and the abovementioned substrates in a multi-stage pre-treatment process according to BIOSORT ORGANIC method. The method ensures fine treatment of the subsieve of such mineral substances as sand, ash and glass. Then the organic material is processed to form a pulp which is most favourable for methane bacteria,

  • appropriate preparation of other substrates,
  • end preparation of substrate and its homogenisation.

The process includes:

  1. two-stage fermentation:
    • 1st stage – thermophilic
    • 2nd stage – mesophilic
  2. multifunction reactor: post-ferment container tank and gasholder

The end products of the process include biogas transformed into electricity and heat, and high quality organic-mineral preparation for agricultural purposes or recultivation of urban greenery. The use of substrates with a high calorific value greatly improves the process quality and stability, which is confirmed by excellent results of studies carried out within the “Fast Track” Operational Programme (ANADI). The development of ANADI ORGANICS technology is possible owing to financing by the National Centre for Research and Development within the “Fast Track” Operational Programme.

Agricultural and utilisation biogasification plants

Together with our Partners we are now in the course of preparing first investments for agricultural and utilisation biogasification plants, which respond to the market needs and dispersed energy policy promoted by the government of Poland and governments of other countries that have to face the challenge of shrinking resources of traditional fuels. We offer design, investment preparation and construction of biogas facilities: with less than 1 MW power per hour.

The plants will be able to process the following types of substrates:

  • chicken manure,
  • waste from agricultural production and farms,
  • fats and floating sludge,
  • waste from food and processing industry,
  • green waste and composted substrates,
  • highly-concentrated post-production organic wastewater,
  • food after expiry date,
  • other agricultural waste,
  • selectively collected biowaste.

We can provide information about reference facilities on request.