Small sewage treatment plant - with partitions dividing spherical tank in preclarification, sludge digestion, activation and final clarification spaces

摘要

A small-scale sewage treatment plant combines a pre-clarification space, a sludge digestion space, a sludge activation space and a final clarification space in one single spherical tank. Plane, curved and truncated conical partitions, made of elastically deformable material, are introduced through the manhole and are fixed inside by welding or bonding. This plant takes up very little space and has a good capacity. It can be mfd. from a min. of materials.