Ecological closed cycle water fish-cultivating method

A closed cycle, ecological technology, applied in fish farming, chemical instruments and methods, biological water/sewage treatment, etc.
CN101548655BInactive Publication Date: 2012-01-04HEBEI NORMAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
HEBEI NORMAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
Publication Date
2012-01-04
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The present invention belongs to an industrialization aquiculture field, particularly relates to a closed cycle water industrialized fish cultivating system. The system separates solid and liquid in astorage sedimentation basin and a backwater channel sedimentation and rotational flow pool sedimentation, the tiny particulate matter is separated and purified by a sandrock filtering bed of a one level biological filter based on the water particulate matter separation, the water purified by the one level biological filter is feed into a two stage biological filter, the biological film of biologic filling material in the one level and the two stage biological filters is degraded with ammonia nitrogen and azote nitrous acid, the total purifying rate of the water particulate matter reaches morethan 99%, the culturing water is added with oxygen mechanically or by liquid oxygen, finally the water is disinfected and sterilized through a ultraviolet ray sterilizer, and the clean ecological water is feed into a fish pool, thus the waste water of the fish pool may be purified and used in repeat. The fish-cultivating system implements completely closed cycle water industrialized fish cultivation, the fish is out of a disease or less, and the fish survival is more than 80%.
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Description

technical field

[0001] The invention belongs to the field of industrialized fish cultivation, and in particular relates to an ecological closed circulation water industrial cultivation system. It mainly uses natural seawater to build a pollution-free and healthy seafood industrialized breeding base. Background technique

[0002] At present, the disease in the process of industrialized circulating water seawater fish farming has become a limiting factor in the development, and the root cause of the disease is that the circulating water system is not clean enough, and sediments such as feces and residual bait remain in the breeding system, polluting the water quality, and the sediment It is not only a source of water pollution, but also a material basis for breeding pathogens. Therefore, in the seawater industrialized circulating aquaculture in China, microfilters or curved sieves are mainly used to filter sediments, which can only filter out larger particles above 100 micron...

Claims

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