ROTARY CONTACT BIOLOGICAL TREATMENT APPARATUS

摘要

PROBLEM TO BE SOLVED: To miniaturize an apparatus performing the biological treatment of living water and factory waste water and to facilitate the maintenance and control of the apparatus. SOLUTION: A perforated rotary cylinder 4 composed of a cylinder or a regular polygonal cylinder or multistage perforated rotary cylinders 41, 42, 43 are packed with bacteria-immobilized carriers to be supported in a treatment tanks 1 by shafts to constitute an apparatus A or B and waste water is introduced into the treatment tank of the apparatus A or B or both apparatuses A, B are connected to introduce water into the treatment tanks 1. The rotational speed of the perforated rotary cylinder is made variable according to the concn. of waste water.