Multi-function device for intensive shrimp farming, intensive shrimp farming pond using this device and method for operating this pond

An intensive shrimp pond (100) cylindrical in shape with an inverted conical bottom, with a lowest position of the bottom having a slope of 5% to 12% along the radius of a bottom surface of the pond, comprising:

• a siphon system (120), including a central hole at the lowest position of the pond and a system of pipes connected to the central hole to drain organic matter out of the shrimp pond;
• at least one multi-function device (200);
• a floating roof system (500) on a surface of water in the pond;
• and
• a light system (600) providing artificial light,
• wherein the multi-functional device (200) comprises:
• a water flow generator (220);
• a body (222) having a screw-shaped tubular structure;
• an impeller (224) placed inside the body (222)
• a motor (221) driving the impeller (224) through a drive shaft (223) to generate a water flow;
• a feeder unit (240) for providing food for shrimp including a container (242), a lid (241) located above the container (242), a sensor located inside the container (242) which can sense an amount of food remaining in the container (242), a feed output (243) located below the container (242), a feed dosing motor configured to measure and deliver precise amounts of feed into the shrimp pond (100);
• gas dissolving unit (230) for dissolving oxygen molecules into the water of the shrimp pond including a porous ceramic tube (232) with hollow interior, an upper stopper (234) and a lower stopper (235) placed at opposite ends of the porous ceramic tube (232), a plurality of bolts (236) and a matching plurality of nuts (237) to tighten the upper and lower stoppers and fix the porous ceramic tube (232) therebetween, an inlet (233) configured in the upper stopper (234) connecting to the hollow interior of the porous ceramic tube (232), wherein the gas dissolving unit (230) is located inside the body (222) and adjacent to the impeller (224) of the water flow generator (220) and is connected to a pure oxygen supply device;
• and
• a support frame (210) configured with a plurality of support levels with the motor (221) of the water flow generator (220) arranged at the highest support level and the body (222) of the water flow generator (220) arranged at the lowest support level so that when placed in the shrimp pond, the device creates one-way laminar flow with a gradually decreasing flow rate from the bottom to the water surface of the shrimp pond;
• and
• wherein the floating roof system (500) comprising:
• a floating roof (510) comprising a rectangular frame of buoy pipes made of polyvinyl chloride (PVC) and a waterproof cover within the rectangular frame and made of high-density polyethylene (HDPE) with a thickness of at least 0.5 mm and a light transmittance over 40%, and
• a submerged pump (520) placed in a middle area of the cover.