Effective COD removal for juice factory by AnoxyBed™ anaerobic reactor

About 3000Nm3/d with full wastewater treatment on limited space.


The End User , a large apple juice concentrate producer located near Warsaw, Poland, needed a compact and reliable wastewater treatment plant for his growing factory.
The key issues were relatively high TSS and COD. In spite of the limited available area, an easy capacity expansion was needed. A new anaerobic-aerobic wastewater treatment plant was designed and built using AnoxyBed™ technology to guarantee stable production and to decrease operational costs for energy without TSS pre-treatment.

The production plant chose the AnoxyBed™ anaerobic reactor technology with expected Return on Innovation™ in about 3 years’ time comparing to conventional aerobic treatment.



A complete anaerobic-aerobic treatment process with two AnoxyBed™-D reactors was designed and built,  followed by a two-stage MBBR and our proprietary Effisep™ MBBR settlers. In order to give full flexibility of operations two reactors were built, each of 500m3/d of flow capacity. They were also built  juice production tanks in standard dimension, allowing further expansion or relocation.The  capacity of the plant is 1000 m3/day from with over 3000 Nm3 of biogas produced a day. The plant treats wastewater from over 7000mg/l COD to CLASS A effluent (COD<100mg/l).



  • - AnoxyBed™ tower anaerobic reactor
  • - Two step MBBR for COD removal
  • - Effisep™ patented MBBR settler
  • - Screening and buffering
  • - Biogas handling


  • Flow:Q=1000m3/d
  • Load 8000kgCOD/d
  • Biogas >3000Nm3/d
  • Biogas quality > 75% CH4