NUTRICULTURE SYSTEM FOR LEAF VEGETABLES AND FRUIT VEGETABLES USING MICRO AND/OR NANO BUBBLES AND APPARATUS USED IN THE SYSTEM FOR STERILIZING NUTRIENT SOLUTION USING OZONE
Disclosed is a system for culturing leaf vegetables and fruit vegetables in a nutrient solution using microbubbles, wherein the system is capable of treating a nutrient solution in an eco-friendly manner. According to the present invention, the system comprises: a controller operating in a sterilization mode or culture mode； a first nutrient solution storage tank； a culture unit for culturing leaf vegetables and fruit vegetables using a nutrient solution provided from the first nutrient solution storage tank； a second nutrient solution storage tank for storing a nutrient solution, which is discharged after being used in the culture unit； an oxygen generator； an ozone gas generator for receiving oxygen generated by the oxygen generator to generate ozone gas； an injector for mixing the oxygen generated by the oxygen generator, the ozone gas generated by the ozone gas generator, and water； and a dissolution tank for storing a gas-dissolved liquid obtained by the mixing in the injector. In the sterilization mode, the controller cuts off the power offered to the ozone gas generator to control the ozone gas generator to flow out the oxygen, turns off a valve installed on a pipe between the dissolution tank and the culture unit, and turns off a valve installed on a pipe between the dissolution tank and the second nutrient solution storage tank. In the sterilization mode, the ozone gas is mixed with water in the injector, and the dissolution tank receives and stores the material flowing out from the injector. In addition, the ozone gas-dissolved water, which is stored in the dissolution tank, is provided in the form of microbubbles inside the second nutrient solution storage tank.본 발명의 일 실시예에 따르면, 살균모드 또는 배양모드에서 동작하는 컨트롤러； 제1 양액 저장탱크； 제1 양액 저장탱크로부터 제공받은 양액을 이용하여 엽채류 및 과채류를 배양하는 배양부； 상기 배양부에서 사용되고 난 후에 배출되는 양액을 저장하는 제2 양액 저장탱크； 산소 발생기； 상기 산소 발생기에 의해 생성된 산소를 유입 받아 오존 가스를 생성할 수 있는 오존가스 발생부； 상기 산소 발생기에 의해 생성된 산소 또는 상기 오존가스 발생부에 의해 생성된 오존가스와 물을 혼합하는 인젝터； 및 상기 인젝터에 혼합된 가스 용해액을 저장
