Design and construction of a Prototype Aquaculture Pond Re-Circulatory system using locally sourced materials (Wood and PVC Blind)

Abstract

The study focused on the design of construction of a prototype re-circulatory pond system (RAS) using the locally sourced raw material (wood, planks and pvc blind). The system consists of three culture ponds of 6ft by 4ft by 4ft (L x b x h) dimension each, sedimentation tank, filtration tank and pumping tank 4x4x4ft each and a bio-tower system. The culture ponds are linked to each other with a pipe connector and to the sedimentation tank. The waste from the culture pond moved to the sedimentation tank and the water moves to the filtration tank through an opening from the base of the wall partition. The water is filtered through the sharp sand, white stones, oyster shells and the activated charcoal and likely through the filtration Net. The water rises to a point where the clean filtered water enters into the pumping tank and get sucked up through a suction pipe from the surface engine to the bio-tower where the water gets mixed up with the oxygen from the air and the nitrogenous waste get broken down with the splashing effect of the water on the bio-filter. Water get settled on the retaining tank and with a gravitational force moves through the returning pipe to service the culture ponds.