Fish, vegetable and algae collaborative symbiotic breeding device and method

Abstract

The invention provides a fish, vegetable and algae collaborative symbiotic breeding device and method, and belongs to the technical field of aquaculture and vegetable planting. The breeding device comprises a fish tank, a vegetable planting tank, a microalgae culture tank, an air pump and a water pump, wherein the planting tank is arranged on the fish tank, the culture tank is arranged in the fishtank, the air pump is arranged outside the fish tank, and the water pump is arranged in the fish tank. The water pump can pump nitrogen-containing substances generated by decomposing fish manure andfish food by microorganisms in the fish tank into the planting tank, so that nutrients required by growth are provided for vegetables; and microalgae can provide sufficient oxygen for fish life, and can also remove nitrogen-containing salts which cannot be completely absorbed by the vegetables, so that the harm to the fish caused by accumulation of the nitrogen-containing salts is avoided. In addition, the microalgae can enrich heavy metals, harmful gases and degrade particulate pollutants, and the air is pumped into the microalgae culture tank, so that indoor air can be purified, and the airquality can be improved.

Description

technical field [0001] The invention belongs to the technical field of aquaculture and vegetable planting, and in particular relates to a fish, vegetable and algae cooperative symbiotic culture device and method. Background technique [0002] The aquaponics system has been developed for a long time. The use of fish feces as plant fertilizers existed a long time ago. Fish feces and bait will be decomposed by bacteria and converted into nitrogenous salts (mainly nitrate and nitrous acid) salt) to be absorbed by plants. In theory, a well-managed aquaponics system can improve the utilization rate of nutrients in aquaculture and achieve the purpose of water purification, but the promotion of aquaponics system is currently limited by its low nitrogen utilization rate. According to reports, more than 60% of the nitrogen in the current aquaponics system may not be utilized by plants or fish, and it usually remains in the water body or overflows in the form of gas, so there is an ac...

AI Technical Summary

Problems solved by technology

In the current aquaculture industry, algae are basically directly added to fish ponds for polyculture, which not only affects the aesthetics, but also easily causes algae flooding and fish death

Images