Standardised Sewage Plants
Standard units range from those suitable for a single house to a population equivalent of 500 persons.
BENEFITS OF SYSTEM
Treated effluent is of an extremely high quality, suitable for re use in many applications.
System is extremely compact, typically taking up only 30 % of conventional treatment plants.
A polishing filter is not required as the effluent is already filtered within this system through a very tight media.
A pumped outlet is standard.
Sludge production is a fraction of alternative systems, typically 40%.
Disinfection (non chemical) included as standard.
Phosphate control achievable to less than 1 mg/l for sensitive discharge areas.
The control enclosure houses the draw off pump, air blower and controls. The enclosure can be positioned to the customer’s requirement and allows for ease of installation.
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DESCRIPTION OF OPERATION
The treatment process used is submerged membrane bioreactor technology which utilises a treatment tank, aeration and a membrane filtration system.
The membrane assembly is submerged in the treatment tank with the control air blower and pump fitted in an enclosure above ground level.
Performance of this system is vastly superior to conventional mechanical treatment solutions such as RBC, SBR and BAF.
These conventional forms of mechanical treatment offer a final treated effluent quality of 25/35 (BOD/SS).
The Colloide Engineering Systems unit can comfortably offer a treated effluent of 5/5 (BOD/SS) which allows the effluent to be re-used where appropriate.
The overall plant is designed with minimal maintenance in mind. The plant is totally automatic and requires only visual checks to ensure the air blower and draw off pump are both running.
Desludging will be required from this plant from time to time. The design of this plant allows for much longer periods between desludging than alternative treatment systems.
The frequency should be between 6-12 months for typical units but the precise frequency will depend on the site details and will be itemised in the detailed proposal given to each customer.
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 MAINTENANCE
Maintenance is recommended every 6 months and there is one major maintenance service required each year. This major service consists of the mechanical cleaning of the membranes using a power hose and the chemical cleaning of the same membranes using a cleaning chemical.
The air blower and draw off pump are also over hauled and a full operational check of the system undertake.
Maintenance contracts can be purchased from Colloide Engineering Systems and are strongly recommended.
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