EFFICIENCY ANALYSIS OF THE ROTARY-TYPE AERATORS USAGE FOR WATER TREATMENT IN RECIRCULATING AQUACULTURE SYSTEMS

Abstract

Purpose of the research is to substantiate the feasibility of rotary type aerators usage at biological water treatment plants with recirculation.  The  main  advantages  and  disadvantages  of  alternative  aeration  systems  in
recirculating aquaculture systems are determined on the basis of the devices technical characteristics and observations results. Determination of the rotor type aerator performance on dissolved oxygen was carried out under conditions of a laboratory experiment using rotary-type aeration. Findings. The paper substantiates the efficiency of rotary aerators for ensuring the proper oxygen
regime  for  water  treatment.  The  scheme  of  aerator  connection  the  block  of  biological  water  treatment facilities was proposed and the rational operational parameters at the coefficient of recirculation at the farm
were determined within the limits of 90-97%.  Originality. The efficiency of rotor-type aeration systems for oxygen saturation of reversible water has been proved.
Practical value. The usage of a rotary aerator will reduce the energy consumption and the heat loss compared to pneumatic aeration systems.