Partnering opportunity

Whey waste recycling technology


A company from Latvia specialised in bioreactor line design and production offers a whey waste recycling technology using bioreactors. The offered technology provides possibility to produce yeasts for food industry utilising whey waste (e.g. whey lactose from whey processing). Main advantage of the technology is that the operator mistake risk is minimised and the process is automated. The company offers commercial agreement with technical assistance.

Partner expertise sought

Types of partner sought – companies or other institutions interested in recycling technology for whey waste. Role of partner sought – installation of the bio-reactor line for whey waste recycling.


Nowadays the processing technology of whey is being mastered for obtainment of high added value products, e.g. whey protein. During the processing of whey, the side product is whey lactose. The utilisation of this product, without polluting the environment, is problematic. This unresolved issue allows to develop technology of whey processing with sufficient profitability. The Latvian company in year 2015 launched a factory of whey processing including the lactose utilisation. The company with the help of bio technologists from Latvia developed a bio-process for whey and whey lactose processing. In the bio-process the yeast strains efficiently consume lactose resulting in production of yeasts for food industry. The offered technology is successfully introduced in practice, and as the experts of the field admits, it is unique and gives a chance to obtain high added value product. For the run of production fermentation process, technological line is used. It consists of bioreactors with volume of 35, 350, 4 000 litres and two bioreactors with volume of 15 000 litres. In all bioreactors, a novel type magnetic mixer (even in 15 000 litre bioreactor!) was used. Above mentioned system is fully closed and automated, the connections between bioreactors are provided by pipeline system and 4 membrane valve group. The system with membrane valve group provides sterile nutrition media and product transport, as well as pipeline and reactor cleaning and sterilising. The company offers commercial agreement with technical assistance for installation of bioreactor line and know-how transfer to interested parties.

Advantages and innovations

Each individual bioreactor is equipped with a technological stand, to ensure automatic fermentation, cleaning, sterilizing, heating and cooling process. Local control of each bioreactor occurs via colour touch screen display. The local control of each individual bioreactor is provided, apart from the rest of other bioreactors. Central cascade control system (CCCS) ensures connection between different bioreactors and CIP/SIP (Clean-in-Place / Sterilization-in-Place) systems, as well as with computerized software SCADA (Supervisory control and data acquisition). The CCCS controls certain groups of valves depending on the selected recipe and the condition of the respective sensors in the bioreactors, as well as in the system CIP/SIP and pipelines (medium presence sensors are installed in the vent groups). The central cascade control system directly controls the following processes in the selected bioreactors or pipelines: CIP cleaning, SIP sterilization, nutrition media feed, biomass (e.g. inoculum) transfer from one bioreactor to another, and bioreactor emptying. Before starting the process, new recipe must be selected or prepared. In each recipe, the movement rout of substrate, product, CIP solution and SIP steam is controlled.

Development stage

Field tested/evaluated

Intellectual Property Rights (IPR)

Secret Know-how

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