Device for aeration of waste water and for cleaning a membrane assembly and small-scale waste water treatment plant containing this device

摘要

An effluent water aeration basin (1) has a submerged pump (3) raising water through a pipe (4) to an air (5) mixer pipe (6) and returning the mixture of water and air through a sub-surface outlet (10) to the basin. The air feed pipe has a shut-off valve (11). Together the air inlet pipe (5) and mixer pipe (6) form a T-junction with removable end-fittings (7). Also claimed is a small-scale effluent water aeration activated treatment plant with a modular membrane filter in which the aeration and filtration assemblies are combined.