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All Bio-Pure sewage systems are fully guaranteed for your peace of mind

The Bio-Pure is a two chambered unit and consists of conical tank that contains an inner tank aeration chamber, which is opened at the base. The space between the inner and outer tank is the clarifier chamber. A draft tube, positioned 100mm from the base of the clarifier, extends up to the aeration chamber.

Air from the compressor housed under the lid is piped to a diffuser in the draft tube. Raw sewage enters the aeration chamber and air surging up from the draft tube aerates the sewage, causing an aerobic bacterial colony to establish and digest the organic matter.

As more raw sewage enters the chamber, an equal amount of effluent displaces through the open bottom into the clarifier. The quiet conditions in the clarifier allow all the suspended solids to sink to the base of the clarifier. They are drawn back up the draft tube by the upward flow of air, for further digestion in the aeration chamber. A small quantity of settled effluent from the top of the outer clarifiying chamber is drawn back into the centre aeration chamber by a simple air lift system for further digestion. The clear effluent rises to the top of the clarifier and passes over a weir into the outlet pipe. The Bio-pure constantly recycle the sewage via gravity and achieves near total solid digestion.

Unlike all other extended aeration plants the unit will function during low usage periods making the unit suitable for holiday lets and other infrequent usages. Unlike other sewage treatment plants that are three stage systems, the Bio-Pure does without a primary settlement tank and so can achieve extended intervals of up to 3 to 5 years without emptying.

TESTED AND CERTIFIED TO BS EN 12566-3