Nitrifying bacteria and photosynthetic bacteria symbiotic prawn culture tail water treatment system

Abstract

The invention provides a nitrifying bacteria and photosynthetic bacteria symbiotic prawn culture tail water treatment system, the nitrifying bacteria and photosynthetic bacteria symbiotic prawn culture tail water treatment system comprises a prawn culture pond, a settling pond and a nitrifying bacteria and photosynthetic bacteria symbiotic culture pond which are connected in a greenhouse, and prawn culture tail water is generated from the prawn culture pond and enters the settling pond. After being treated by the settling pond, the prawn culture tail water enters the nitrifying bacteria and photosynthetic bacteria symbiotic culture pond, the prawn culture tail water treated by nitrifying bacteria and the photosynthetic bacteria enters the prawn culture pond to be recycled, and the nitrifying bacteria growing on a suspended filler are attached to a fluidized bed of the bacteria and photosynthetic bacteria symbiotic culture pond to convert ammonia nitrogen into nitrate nitrogen in time;the prawn culture tail water in the bacteria and photosynthetic bacteria symbiotic culture pond is irradiated by light to generate photosynthetic bacteria, and hydrogen sulfide in the culture water body is removed through assimilation; the symbiotic nitrifying bacteria and photosynthetic bacteria in the symbiotic culture pond not only can fully treat the culture tail water, but also can culture high-abundance photosynthetic bacteria, thereby enhancing the immunity of prawns and inhibiting the occurrence of aquatic diseases.

Description

technical field [0001] The invention belongs to the technical field of aquaculture tail water treatment and environment control, and in particular relates to a prawn culture tail water treatment system in which nitrifying bacteria and photosynthetic bacteria co-exist. Background technique [0002] Shrimp farming water contains a large amount of nutrients such as ammonia nitrogen and hydrogen sulfide. These substances accumulate in a large amount in the aquaculture system and will seriously affect the growth and safety of aquatic animals. Traditional recirculating aquaculture facilities include a nitrification system, which completes the conversion of ammonia nitrogen to nitrate and solves the stress problem of ammonia nitrogen on aquatic animals. However, the accumulation of harmful substances such as hydrogen sulfide is still a serious problem. [0003] Photosynthetic bacteria are commonly used microbial agents in the process of shrimp farming, which can degrade residual fe...

AI Technical Summary

Problems solved by technology

At present, the popular photosynthetic bacteria agents on the market are all cultivated and concentrated with photosynthetic bacteria medium. Not only the transportation and promotion costs are high, but also the photosynthetic bacteria splashed in the breeding environment will quickly lose their activity due to the unsuitable environment.

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