Observing that food price is increasing constantly because of large competition of arable land between biofuel and food industries, the
best solution would be to find effective biofuel substrate which could be cultivated on area insufficient for food
production.
Another problem is digested pulp management, which according to Polish law is a harmful waste. Usage of
digested pulp as a liquid natural fertilizer is expensive and accompanied by numerous rigidities (exactly the same
like for municipal sludge). Many investors would like to implement solid-liquid pulp separation. Unfortunately there
is still a problem with management of liquid fraction – less than 1 percent of dry matter and large amount of
microelements.
Algae are simple organisms that differ from regular plants in many ways. They exist in several forms with
different complexity and size. The size can range from 0.2