The invention discloses a combined modular circulating water cultivating
system, which comprises a belt type
mechanical filter, a
protein separator, a dripping box, a bio-filter, an
ultraviolet disinfector and a central
electronic controller, wherein the
protein separator is connected with the belt type
mechanical filter; the dripping box is connected with the
protein separator; the bio-filter is connected with the dripping box; the
ultraviolet disinfector is connected with the bio-filter; the belt type
mechanical filter is used for pumping water into the protein separator through a water pump; the dripping box is arranged above the bio-filter; the highest
water level of the protein separator is higher than the highest
water level of the dripping box; the highest
water level of the bio-filter is higher than the highest water level of the
ultraviolet disinfector; and both the ultraviolet disinfector and the water pump are connected with the central
electronic controller. According to the combined modular circulating water cultivating
system, the defects of high manufacturing cost, large occupied space, complex pipeline connection, difficulty in maintaining, high running cost, poor
treatment effect and the like caused by the complex and single equipment
system design of the conventional circulating water cultivating system are overcome completely; and the combined modular circulating water cultivating system is more convenient and practicable.