Conversion of Fats and Proteins into Biogas

Sept. 3, 2021

The BIOPAQ Anaerobic Flotation Reactor (AFR) is specifically designed for the treatment of wastewater containing high concentrations of fats, oil and grease (FOG) and other biodegradable compounds such as proteins and starches. In wastewater from industries like meat, dairy and other food processors, with COD concentrations from 5 to70 g/l and FOG concentrations up to 5,000 mg/l, the BIOPAQ® AFR will reliably and efficiently convert these organic compounds into valuable biogas, while producing a high-quality treated effluent without the need of pretreatment.

Biomass retention using the biogas flotation unit prevents biomass loss and permits the decoupling of hydraulic retention time (HRT) from solids retention time (SRT). This allows an SRT >50 days with HRT's from 1-8 days. At loading rates from 2-8 kg COD/m3/day and a high concentration of well mixed flocculent biomass, the BIOPAQ® AFR combines the high efficiency and compact footprint of a high-rate reactor with the stability and biogas production of a conventional anaerobic CSTR.


  • Proven technology, >10 years operational experience
  • 17 references worldwide
  • Maximum biogas production from COD, FOG and proteins
  • High flocculent biomass concentration
  • Efficient biomass retention
  • Low HRT, High SRT
  • Loading rates 2-8 kg COD/m3/d
  • Compact footprint
  • No pre-treatment required
  • Low sludge production
  • Outstanding effluent quality
  • Tailor made solutions
  • Worldwide availability

For more information, visit Paques’ website

Editor's Note: Scranton Gillette Communications and the SGC Water Group are not liable for the accuracy, efficacy and validity of the claims made in this piece. The views expressed in this content do not reflect the position of the editorial teams of Water & Wastes Digest, Water Quality Products and Storm Water Solutions.



Sept. 3, 2021