Method and system for removing harmful pollutants in cultivation water by using attaching algal flat system

A technology for cultivating water bodies and pollutants, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of long growth cycle of aquatic plants, large amount of cleaning work, and high cleaning cost , to achieve the effect of easy evaluation, increasing dissolved oxygen and reducing content

Active Publication Date: 2017-01-04
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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Problems solved by technology

At present, the use of aquatic plants to repair water pollution has begun to attract people's attention, but the growth cycle of aquatic plants is long, the removal efficiency is low, the amount of cleaning work is large, and the cost of cleaning is high.

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  • Method and system for removing harmful pollutants in cultivation water by using attaching algal flat system
  • Method and system for removing harmful pollutants in cultivation water by using attaching algal flat system
  • Method and system for removing harmful pollutants in cultivation water by using attaching algal flat system

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Embodiment Construction

[0037] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0038] The invention designs a technology for removing toxic and harmful pollutants such as ammonia nitrogen, heavy metals, environmental hormones and antibiotics in aquaculture water by an artificially fixed algae flat purification system. Through the growth environment (residence time, water depth, etc.) required for the sessile algae in the aquaculture water to reproduce in the sessile algae flat purification system, the maximum growth rate of the algae is maintained, thereby removing excess ammonia nitrogen and heavy metals in the aquaculture water. Harmful pollutants such as , to improve the aquaculture environment, improve the quality of aquatic products, and e...

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Abstract

A method and system for removing harmful pollutants in cultivation water by using an attaching algal flat system comprise the steps of acquiring biomass of attaching algae in natural water, and time that it takes to cultivate attaching algae to develop specific biomass; acquiring growth rate of the attaching algae, and recording light intensity, retention time and water depth in the case of maximum growth rate; building a relationship of harmful pollutant removal rate to the retention time, pollution load and the biomass of the attaching alga; determining treatment capacity of cultivation water, and building the attaching algal flat system; introducing the cultivation water to the attaching algal flat system, and running the attaching algal flat system to remove harmful pollutants in the cultivation water, such as ammonia nitrogen, heavy metals, environmental hormones, and antibiotics; harvesting attaching algae, and clearing the attaching algal flat system. By optimizing a growth environment required to breed attaching algae in water during circulation and maintaining maximum growth rate of algae, the harmful pollutants in the cultivation water are removed, aquatic cultivation environment is improved, aquatic product is improved, and quality safety of aquatics are guaranteed from the origin.

Description

technical field [0001] The invention relates to the technical field of treatment of aquaculture water bodies, in particular to a method and system for removing harmful pollutants in aquaculture water bodies through a fixed algae flat system. Background technique [0002] With the growth of population, the development of aquaculture and animal husbandry, the continuous increase in the application of chemical fertilizers and the introduction of feed, a large amount of harmful pollutants such as ammonia nitrogen, heavy metals, environmental hormones and antibiotics have entered the water body, resulting in the continuous deterioration of the water environment of aquaculture. Deterioration affects the output and quality safety of aquatic products. [0003] In the existing technology, the treatment technologies for polluted water mainly focus on adding chemical flocculants, intercepting sewage, artificial aeration, artificial wetlands and artificial floating islands, etc. These r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F103/20
CPCC02F3/322C02F2103/20
Inventor 晏维金李艳强王芳余其彪
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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