The offered drainage system is equipped with the so-called "bed drainage" made of the drainage elements designed by Ecopolymer. If sludge-drying beds are operated in accordance with the developed by us technological regulations for sludge filling, annual unit load will be equal to 5-7 m³/m².

Unit load can be increased 1.5 times if working dose of cationic flocculants is 2-2.5 kg/ton DS. In this case, ungraded sand and crushed stone can be used instead of scarce material.