STRUCTURE DRAINING AWAY FILTERED WATER AND BOTTOM BIO-REACTOR WITH SAID STRUCTURE DRAINING AWAY FILTERED WATER

摘要

The structure includes the susceptible diaphragm (3) of the material permeable for water but retaining the grains of the loose medium, located on the brackets (2), whereas the diaphragm (3) constitutes an element that separates the substrate superimposed over it from the void under-a-diaphragm space (4), through which flows water freely towards the inlet of the duct draining away the water. The bio-reactor contains at least one layer (8) of the dusty loose fine-grained materials, with high inner surface of the material of the layer that constitutes the outer surface of the grains, and at least a half of the mass composition of the material consists of the grains not greater than 0,25 mm.