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Method for treating circulating aquaculture seawater with hydroponic spartina alterniflora loisel

A technology of Spartina alterniflora and treatment cycle, which is applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc., and can solve the problems of few methods and poor effect of biological treatment of aquaculture seawater, etc. Achieve the effect of excellent water quality treatment, easy operation and obvious effect

Inactive Publication Date: 2015-11-11
SHANGHAI FISHERIES RES INST
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that there are few biological treatment methods for aquaculture seawater in the prior art and the effect is not good, and to provide a biological treatment method suitable for indoor circulating aquaculture seawater

Method used

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  • Method for treating circulating aquaculture seawater with hydroponic spartina alterniflora loisel

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Embodiment Construction

[0008] The specific embodiment of the present invention is to dig wild Spartina alterniflora 4, clean up the earth on its root system 6 with natural sea water; Lay at the upper half of the biofilter 5 of the indoor closed water circulation to the water surface 7 and 5 cm. The bio-ball 3 with coral stones is installed, and the cleaned Spartina alterniflora 4 is inserted into the bio-ball 3 to keep it upright. The interval between each Spartina alterniflora 4 is 10cm, and the planted Spartina alterniflora 4 leaves need to be Completely exposed to the water surface; when the cultured seawater enters the bottom of the biofilter 5 through the water inlet pipe 1, and passes upward through the biosphere 3, the organic matter in the seawater is decomposed into inorganic matter through the action of microorganisms, and then flows through the root system of Spartina alterniflora 6, and passes through the biosphere 3. The well-developed root system 6 of Spartina absorbs and removes the in...

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Abstract

The invention relates to indoor closed type circulating aquaculture seawater treatment, in particular to a method for treating circulating aquaculture seawater with hydroponic spartina alterniflora loisel. The method is characterized by comprising the steps that wild spartina alterniflora loisel is dug, and after mud on a root system of the wild spartina alterniflora loisel is cleaned up, the wild spartina alterniflora loisel is planted on a biologic ball with corallite in a biofilter with the planting distance of 10 cm; when the aquaculture seawater enters the bottom of the biofilter through a water inlet pipe and flows through the biologic ball upwards, organic matter is decomposed into inorganic matter through the microbial action; then when the aquaculture seawater flows through the root system of the spartina alterniflora loisel, inorganic nitrogen and phosphorus nutrient elements in the water are removed out of an aquaculture system through absorption of the root system of the spartina alterniflora loisel, and the aim of purifying water is achieved.

Description

technical field [0001] The invention relates to indoor closed-type circulating culture seawater treatment, in particular to a method for biologically removing ammonium nitrogen, nitroso nitrogen, nitronitrogen and phosphate in circulating culture seawater. Background technique [0002] In the indoor closed recirculating aquaculture system, with the prolongation of the culture time, a large amount of bait is put into the culture system, and after the feeding and digestion of the cultured organisms, a large amount of excrement enters the culture water body, and the accumulated ammonium nitrogen, nitroso nitrogen, Harmful substances such as nitronitrogen and phosphate not only damage the water quality, but also endanger the safety of breeding organisms. The commonly used methods to remove the above-mentioned substances in water mainly include ion exchange method, membrane separation method, biological reaction method, etc.; at present, in indoor freshwater aquaculture, aquatic ...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/34A01G31/00
CPCY02W10/10
Inventor 侯文杰周文玉潘桂平孙振中刘本伟周裕华张年国毕浩张丹
Owner SHANGHAI FISHERIES RES INST
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