There are three treatment stages within the Clereflo MBR: (1) flow balancing using a bucket lift elevator, (2) primary settlement, separation of gross solids, (3) biological treatment in the membrane bioreactor.

• This final stage uses flat sheet membrane panels, housed in units and aerated by a coarse bubble system.  Membrane units are situated in the activated sludge chamber providing a physical barrier to ensure good solid/liquid separation.
• Effluent flows through the membrane from outside to inside and the liquid head above the unit drives the flow and generates all the pressure required.
• The discharged effluent produced using the Clereflo MBR plant is of a quality that allows the effluent to be reused in a variety of applications.  The quality produced is less than: 5mg/l BOD: 5mg/l S.S: 5mg/l NH3.
• There is also a 4 log reduction in viruses and a 6 log reduction in bacteria.
• The effluent complies with the World Health Organisation (WHO) qualification criteria for unlimited irrigation.
• The Clereflo MBR also meets and exceeds some of the most stringent discharge standards in the world - therefore treated effluent can be reused for irrigation of golf courses and plants, woodlands and gardens.
• Built-in nitrogen reduction open (TN ≤ 10mg/l).
• Phosphorous reduction option.

Features and benefits

• Leading edge treatment to 5:5:5 standard.
• Effluent meets EU Directive 76/160/EEC for bathing waters and Directive 72/923/EEC for shellfish.
• Flat sheet membrane filtration technology approved by California Department of Health Services and complies with their water recycling criteria - Title 22.
• Completely below ground installation, only the manhole access covers are visible on the surface.
• May be installed under hard standing or car parking areas.
• Shallow excavation with small footprint.
• Cylindrical tank shape enables fast and cost-effective installation.
• Full technical specification and installation support on every project from trained and experienced Conder team.

Applications include

• Golf courses
• Garden centres
• Coastal discharges
• Environmentally sensitive areas such as SAC's and salmonoid waters
• Ground water sensitive areas
• Meets with the specific requirements of the water framework directive