ECOLOGICAL COMPLEX Russian patent published in 1997 - IPC

FIELD: agriculture; complexes for combined production of vegetables and fish. SUBSTANCE: complex has systems for hydroponic vegetation of plants and growing of fish and nutrient solution circulating system connecting systems mentioned above. Complex is divided into biological units consisting of three modules first of which has aquarium 10 for baby fish and racks 2 with trays 8 to let seeds sprout, second module has aquarium 11 for young fish and racks 3 with trays 8 for seedlings and third module has aquarium 12 for growing fish and racks with trays for cultivation of plants 9 at production stage. Each unit has self- contained nutrient solution circulating system containing nutrient solution reservoir 13, supply pipelines 16 and outgoing pipelines 19. The latter have suction branch pipes 17 and filters 18. Supply pumps 14 with electric drive are installed in supply pipelines. EFFECT: enlarged operating capabilities. 1 dwg