Innovation provider

Poltegor - Instytut Instytut Górnictwa Odkrywkowego


ul. Parkowa 25
51–616 Wrocław
tel. +48 71 348 82 15
fax +48 71 348 43 20


The utlisation of the after-slaughter waste feather is a serious problem due to pathogenic microorganisms contained in this waste on one hand, and technological criteria which must meet stringent sanitary and environmental protection standards on the other. The conventional methods of feather utlisation are based on thermal processes or composting which is either expansive or time-consuming. The developed innovative technology eliminates the above mentioned inconveniences while enabling effective implementation in SMEs at low investment costs. The that feathers acquired from after-slaughter contain about 70 - 75 % of water. They are stored gradually to fill up the reactor. Then the reactor is closed and undergoes the process of hydration of oxygenic lime in the amount of 8 -12 %, with 8 - 10 % of lignite and peat. The obtained mass is mixed with a speed of 5 - 8 turns per minute for not less than two hours and left to cool. After the process of higienisation the feathers are unloaded during mixing and the direction of reactor’s turns is changed regularly. After that the feathers undergo the process of mechanic disintegration. The obtained end product is safe and ready for utlisation as fertiliser and contains no pathogenic microorganisms Additionally, the project is an example of non-energetic use of lignite.


The technology helps solve the problem of waste management from poultry slaugher houses in an efficient and costs effective way. The obtained product can be applied to improve soil quality and deacidification.

Innovative aspects (ecologic, social and economic)

Feather utilization, pathogenic microorganism protection.

Application examples




Current stage of development

Entering the market 


Intellectual Property Rights

Patent granted
Home patent P 38 1095, 20.11.2006.

Country of origin


Country of application



National Contact Point

dr Włodzimierz A. Sokół
National Contact Point for Eco-efficient Technologies and Management Systems
Central Mining Institute (GIG)

Plac Gwarkow 1
40-166 Katowice

Tel: +48 32 259 22 11
Fax: +48 259 22 11