Biocombi Compact Plants

Biocombi compact wastewater treatment plants: description and operation

For wastewater treatment of small communities, downstream of pre-treatment and primary settling, integrated systems come into play to group the purification processes into a single efficient and space-saving system: these are the Biocombi compact plants proposed by MITA Water Technologies.

In these systems, biological treatment is carried out by means of parallel polypropylene disks, mounted on a central axis and partially submerged, on which the biomass of aerobic bacteria is formed: these feed on the colloidal and dissolved substances, according to the principle of Biorulli® biodiscs, and carry out the oxidation and biodegradation of the pollutant. In the continuation of the process, one or more drum filters accomplish the separation of the secondary sludge, more effectively replacing the secondary sedimentation basin and ensuring a high quality of the effluent even in case of variable loading (both hydraulic and in terms of suspended particles): this is due to the free-fiber cloth, equipped with countless overlapping fibers, for depth filtration.

How does the backwashing of the cloth take place? Exactly as in the case of conventional MITA cloth filters: when the surface of the drum (or two drums) becomes covered with a layer of sludge such that it causes the pressure drop to increase to a target value, a level sensor starts a pump. This, through a suction unit arranged in contact with the drum, draws in the water needed to clean the cloth itself. The sludge removed with the water is sent to the primary settling tank, if any, or to another destination.Traditional MITA cloth filters: when the surface of the drum (or two drums) becomes covered with a layer of sludge such that it causes the pressure drop to increase to a target value, a level sensor starts a pump. This, through a suction unit arranged in contact with the drum, draws in the water needed to clean the cloth itself. The sludge removed with the water is sent to the primary settling tank, if one exists, or to another destination.

The most obvious advantages of the system are:

• the minimal use of electricity,
• maintenance limited to a few simple operations (executable by unskilled personnel),
• small size,
• constant performance even under varying loads
• and last but not least, absence of noise and unpleasant fumes.

Biocombi compact systems are particularly suitable for small municipalities or hamlets, tourist resorts, hotels. Rated capacity: from 100 AE to 800 AE.

Biocombi Compact Plants: Applications

Learn about installation contexts here

Do you need info?

We wish to support you with our technologies: we are always happy to forward technical and commercial information and explanatory materials.