Method for reducing total nitrogen and total phosphorus in water of prawn culture pond

A pond and shrimp technology, applied in chemical instruments and methods, fish farming, water pollutants, etc., can solve the problems of low cost performance of micro-ecological preparations, difficulty in reducing total nitrogen and total phosphorus, and low feasibility, and improve digestion. Enzyme activity and immunity, reduction of phosphorus content, effect of promoting shrimp growth

A pond and shrimp technology, applied in chemical instruments and methods, fish farming, water pollutants, etc., can solve the problems of low cost performance of micro-ecological preparations, difficulty in reducing total nitrogen and total phosphorus, and low feasibility, and improve digestion. Enzyme activity and immunity, reduction of phosphorus content, effect of promoting shrimp growth

CN111533271APending Publication Date: 2020-08-14INST OF OCEANOLOGY & MARINE FISHERIES JIANGSU
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  • Method for reducing total nitrogen and total phosphorus in water of prawn culture pond
  • Method for reducing total nitrogen and total phosphorus in water of prawn culture pond
  • Method for reducing total nitrogen and total phosphorus in water of prawn culture pond

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Embodiment Construction

[0019] Various exemplary embodiments of the present invention will now be described in detail. The detailed description should not be considered as a limitation of the present invention, but rather as a more detailed description of certain aspects, features and embodiments of the present invention.

[0020] It should be understood that the terminology described in the present invention is only used to describe specific embodiments, and is not used to limit the present invention. In addition, regarding the numerical ranges in the present invention, it should be understood that each intermediate value between the upper limit and the lower limit of the range is also specifically disclosed. Each smaller range between any stated value or intervening value in a stated range and any other stated value or intervening value in a stated range is encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded from the range. ...

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Abstract

The invention discloses a method for reducing total nitrogen and total phosphorus in water of a prawn culture pond, and belongs to the field of aquaculture sewage treatment. The method comprises the steps of reasonable supplement of microalgae in a prawn culture pond, matching of the prawn culture pond and a shellfish culture pond and water circulation, fixation of a micro-ecological preparation in the shellfish culture pond and reasonable supplement of a carbon source in the shellfish culture pond, and the content of total nitrogen and total phosphorus in culture water can be effectively reduced through water circulation. The method is easy to operate and can meet the requirements of aquaculture tail water discharge standards, and has good environmental protection value and market application prospect.

Description

technical field [0001] The invention relates to the technical field of aquaculture sewage treatment, in particular to a method for reducing total nitrogen and total phosphorus in the water quality of prawn breeding ponds. Background technique [0002] At present, in the process of prawn culture in open-air ponds, monoculture (prawn) and polyculture (prawn and shellfish, prawn and fish, and multiple species of prawn) are mainly used. During the culture process, microalgae can absorb and utilize the water body through photosynthesis Inorganic nitrogen and inorganic phosphorus, thereby reducing inorganic nitrogen and inorganic phosphorus in the water body. Shellfish can reduce the number of microalgae in the water body through filter feeding, which can reduce the total nitrogen and total phosphorus in the water body, or filter-feeding fish can also achieve Reduce the effect of total nitrogen and total phosphorus. This method relies on the action of microalgae, although it has ...

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Application Information

Patent Timeline
14 Aug 2020
Publication
CN111533271A
IPC
C02F3/32; C02F3/34; A01K61/50; A01K61/59; A01K63/00; C02F101/38; C02F103/20
CPC
C02F3/325; C02F3/34; A01K61/50; A01K61/59; A01K63/003; C02F2101/38; C02F2103/20; Y02A40/81
Inventors
沈辉; 万夕和