The TETRA® Modular Deep Bed Filter (MDBF) is a skid-mounted filtration system designed after the TETRA DeepBed technology to be a competitive tertiary filtration plant for secondary effluent from smaller sized wastewater treatment facilities. Consisting of a number of stainless steel filter cells (normally 6, 8, 10 or 12), backwash water pumps, backwash blowers, pipework and control panel, the unit is fully assembled and tested to ensure simple and quick installation and setting to work.
MDBF Typical Performance
- Suspended solids removal up to 90%
- Backwash water produced < 5%
- Rate of backwash water ranging from 2.7 l/s to 6.9l/s
- Duration of Backwash ranges from 20 to 30 minutes per cell
- One Backwash/day/cell typically required
MDBF Process Flexibility
- Treats variable flows up to the peak hydraulic flow of the filter plant- no requirement for recirculation at low flows
- Filter is always able to meet performance criteria regardless of backwashing cycle
- Very high solids loading capacity and the ability to accommodate upstream works upsets in an emergency
- Built in redundancy e.g. standby backwash pumps & blowers / multiple filter cells
- Upgrade to TETRA Denite™ for denitrification applications
- No effluent strainer / screen required on the input to the filter
- Standard modular build on steel skids can easily be connected when on site
- Units are wired, piped and commissioned prior to delivery, thereby only requiring connections to power and site pipework to minimize on-site requirements.