LIFE SUPPORT SYSTEM OF GROUP OF SEAQUARIUM TANKS (VERSIONS) Russian patent published in 2009 - IPC A01K63/00 A01K63/04 

FIELD: agricultural industry.

SUBSTANCE: system is two-stage, at that the first stage is mainly common for a group of tanks and includes a water-treatment system which consists of systems and devices including a mechanical water treatment system, a chemical water treatment system, a sea water treatment system, and at least one storage tank containing treated water, which are commuted with each other and with the above group of tanks by means of pipelines at least through one ring collecting main with fresh water and at least through one ring collecting main with sea water, and which are provided with pump equipment and filters. The second stage is mainly located on tanks and consists of at least one individual life support subsystem per a tank, which is intended for recirculating and adding fresh water, treating the recirculated water, and if necessary, correcting environmental water behaviour. Life support subsystem at least of one tank in the group of tanks with capacity of not less than 0.6 m³ includes mechanical and biological water treatment systems, a water sterilising system, a protein water treatment system, and measurement and/or control systems of pH, temperature and redox potential of recirculated water, which are in-series commuted and/or at least partially parallel so that recirculated water can be passed through them, and equipped with pump equipment. Life support system of a group of tanks also includes at least one reverse-osmosis water treatment plant, a sewage system for removing liquid waste of treated waste and replaceable water, lighting system and measurement system of current water parameters, shutoff and control valves mainly providing specific supply of sea and/or fresh water to the tanks in the tank filling or operational water addition mode. Life support subsystem at least of some tanks is adjusted for the ratio of volumes of recirculated and added fresh water thus providing the ratio of the volume of water being added, which is equal to one volume of the tank, of water which is added to the tank within the operating time period required for it, to the number of volumes of recirculated water exchange within same operating time period, which is 1:(2500÷3200) for sea water tanks. Power of pump equipment, capacity of filter at least of mechanical water treatment, and total volume of treated water storage of water treatment system are accepted so that they provide the possibility of a cyclic 99% replacement of composition of full water volume in tanks at fractional volume of the addition during one timing period Δυ=1/t of K-time cycle of replacing the full volume υ, where K is the number of timing periods in a cycle of replacement of full volume υ of water in tanks at frequency of timing periods of added replacement, mainly, (2÷8)·mo^-1, n - the number determining the fractional volume of water replacement in the tank, at that n≤6, mainly, n=4, and K≤26, mainly, K=17.

EFFECT: improving operational performance of each tank.

20 cl, 14 dwg