BioSTAR™ AD CSTR (continuous stirred-tank reactor) biogas systems offer an advanced solution for efficient biogas production with significantly lower capital costs.
The BioSTAR AD reduces reactor volume and capital expenditure by up to three times compared with conventional CSTR technology, making it an ideal choice for projects that need compact, high-efficiency systems.


The Base System provides automated controls for the digestion tanks, biogas management and measurement, pretreatment, pumping, heat exchangers and biologic processes.
Uniquely suited to treat high salinity, nitrogen and sulphur waste streams.
High biogas output, plus biofertiliser product for full circularity. Maximum gas bubbles through a granule sludge bed, result in maximum water cleaning for easy post treatment and water reuse potential.
Excellent biomass capacity for stable digestion.
Low energy requirement for operation.
Superior gas and liquid separation of high strength wastewater streams.
Completely closed reactor to minimise emissions.
Compact design with small footprint.
Efficiently handles high COD load with low retention time.
