METHOD OF PREPARATION OF WATER AT INDUSTRIAL FISH BREEDING IN SYSTEMS WITH RETURN WATER SUPPLY

摘要

Use: in fish farming in the preparation of water in a circulating water systems. SUMMARY OF THE INVENTION: contaminated water from the fish breeding basins fed to the storage container, wherein the pH is adjusted to establish the value to 6,8-7 and water temperature to a value of 27 & amp; deg; C, as well as make-up water is supplied in an amount providing the load on sewerage plant 120x10 -150x103 BCPR mg / min. Thus prepared water enters the treatment facility, where it is carried out a biological purification, aeration and sedimentation. Water is fed to the treatment plant at a specific flow 0,008-0,01 l / kg and with x having a concentration of suspended solids of 500-700 mg / l. The method allows to improve cleaning quality and increase productivity of. Table 2. Yo