The compact CIRCOX® reactor is a fully closed aerobic system whith outstanding purification performance. The system uses very little space, excludes noise and odours risks, and purifies the effluent in such a way that it can be directly discharged to the surface water. Re-use as process water is also a possibility. Many CIRCOX® plants are operational world wide. These plants can successfully treat effluent from anaerobic plants, as well as raw waste water and process flows.

The CIRCOX® reactor uses biofilm on a carrier material. The granular sludge is suspended in the water by means of the airlift principle. The granular biomass that develops in the CIRCOX® reactor has a high density and is compact in structure. The granular biomass has good settling characteristics and can easily be separated and returned to the reactor system with the aid of a small settler at the top of the reactor. A high biomass concentration can be achieved and as a result of these high concentrations and the good mixing characteristics of the reactor system, conversion capacities of more than 5 kg COD/m3/day can be achieved. This capacity is much higher than conventional purification systems.      

Characteristics
• excellent effluent quality;
• compact and space-saving system;
• limited sludge production;
• completely closed system;
• low operational costs