Breeding tail water treatment system

Abstract

The invention discloses a culture tail water treatment system which is used for treating culture tail water of a culture pond. The culture tail water treatment system comprises a primary filtering device, a protein separator used for separating organic matter in the culture tail water from the water, removing suspended matter, conducting deodorizing, reducing COD (Chemical Oxygen Demand) and controlling the quantity of bacteria in a water body, a sterilization device used for sterilizing the culture tail water, a first nitration reaction biological filter used for converting NH4<+> and NO2<->in the culture tail water into NO3<->, a denitrification reaction biological filter used for converting NO2<-> and NO3<- > in the culture tail water into N2; and a secondary filtering device used forremoving residual suspended substances and microbial films in the culture tail water. Ammonia nitrogen, nitrite nitrogen and nitrate nitrogen in the culture tail water flowing out of the culture pondcan be removed through the first nitration reaction biological filter and the denitrification reaction biological filter, and therefore the pollution problem caused by excessive nitrate nitrogen components in the culture tail water is solved.

Description

technical field [0001] The invention relates to the technical field of aquaculture tail water treatment, and more specifically relates to a culture tail water treatment system. Background technique [0002] As an advanced farming model, industrial recirculating aquaculture has obvious advantages in terms of intensive farming, water resource utilization, tail water discharge control, land utilization, healthy farming effects, and product quality and safety. The conventional treatment process in the treatment of aquaculture tail water can only remove ammonia nitrogen, nitrite nitrogen, and suspended solids, but cannot treat nitrate nitrogen components, which affects the water quality of aquaculture circulating water, and will cause pollution and damage to the environment after discharge. [0003] In addition, the conventional aquaculture tail water treatment process cannot deal with the COD (Chemical OxygenDemand abbreviation, chemical oxygen demand) and organic nitrogen compo...

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Problems solved by technology

[0004] In view of this, the purpose of the present invention is to disclose a farming tail water treatment system to solve the pollution problem caused by excessive nitrate nitrogen components in the farming tail water

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