Snail-fish-grass stereo integrated system for controlling eutrophication of water body

A water eutrophication and integrated system technology, applied in the field of water body purification, can solve the problems of eutrophication, unfavorable large-scale promotion, aggravation, etc., and achieve the goal of improving the ability of eutrophication, accelerating its own growth rate, and promoting circulation. Effect

Inactive Publication Date: 2018-06-19
HANGZHOU NORMAL UNIV QIANJIANG COLLEGE
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Problems solved by technology

[0002] Eutrophication of water body is one of the important signs of extreme deterioration of water quality, and it is also a serious problem in water pollution in the world today. With the development of industry and agriculture, more and more pollutants such as NP are produced in people's life and industrial and agricultural production. Many places enter the water body, causing aquatic plankton, especially algae, to multiply, causing serious eutrophication and a series of vicious circles, making some rivers, ponds and reservoirs completely lose their utilization functions due to severe eutrophication, which not only restricts It not only affects the availability of water resources, but also directly affects human health, and restricts the sustainable development of social economy.
Controlling water

Method used

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  • Snail-fish-grass stereo integrated system for controlling eutrophication of water body

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Experimental program
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Effect test

Embodiment 1

[0024] Such as figure 1 Shown, a kind of snail grass three-dimensional integrated system of controlling water body eutrophication, comprises ecological floating bed 1, fish breeding area 2 and benthic organism area 3; Described ecological floating bed 1, fish breeding area 2 and benthic area The biological area 3 is arranged sequentially from top to bottom, and the density of the ecological floating bed 1 is 2-10 / 100m 2 , which are respectively parallel and equidistantly arranged on the water surface, and floating green plants are evenly distributed or hydroponically grown on the ecological floating bed 1; Under the water surface, the fish breeding area 2 is surrounded by mesh panels 21, the upper end is connected to the bottom of the ecological floating bed 1, and the lower end is connected to the benthic organism area 3, and the benthic organism area 3 is arranged at the bottom. The benthic organism area 3 includes a submerged plant part 31, a bottom mud part 32, and a snai...

Embodiment 2

[0032] Embodiment 2 of a three-dimensional integration system of snail grass for controlling eutrophication of water body according to the present invention is similar to Embodiment 1, the difference is that:

[0033] The density of the ecological floating bed 1 is 10 pieces / 100m 2 They are respectively arranged in parallel on the water surface, and the distance between the green plants cultivated on them is 12cm; in the fish breeding area 2, silver carp and bighead carp are used for mixed stocking in a ratio of 4:1, and the stocking density of silver carp and bighead carp is 4:1. For 200 tails per hundred square meters (100g fry), the thickness of the bottom mud part 32 below it is 20cm; in the described submerged plant part 31, the row spacing of each cluster of hornwort, Erythrina chinensis and Paleopsis is 15cm, and the cluster The spacing is 20cm; in the snail class activity part 33, the ratio of rib snails and field snails is 4:1.

Embodiment 3

[0035] Embodiment 3 of a three-dimensional integrated system of snail grass for controlling eutrophication of water body according to the present invention is similar to Embodiment 1 and Embodiment 2, the difference is that:

[0036] The density of the ecological floating bed 1 is 6 pieces / 100m 2 And they are arranged in parallel on the water surface respectively, and the distance between the green plants cultivated on it is 8cm; in the fish breeding area 2, silver carp and bighead carp are used for mixed stocking in a ratio of 3:1, and the stocking density of silver carp and bighead carp is 3:1. For 150 tails per hundred square meters (100g fish fry), the thickness of the bottom mud part 32 below it is 15cm; in the described submerged plant part 31, the row spacing of each cluster of hornwort, Erythrina chinensis and Smilax is 20cm, and the cluster The spacing is 15cm; in the snail class activity part 33, the ratio of rib snails and field snails is 3:1.

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Abstract

The invention discloses a snail-fish-grass stereo integrated system for controlling eutrophication of a water body. The snail-fish-grass stereo integrated system for controlling the eutrophication ofthe water body comprises ecological floating beds, a fish farming zone and a benthos zone, wherein multiple sets of the ecological floating beds are equidistantly arranged on a water surface in parallel, and floating green plants are uniformly planted or aquacultured thereon; the fish farming zone and the benthos zone are formed under the water surface at the lower ends of the ecological floatingbeds; a sediment part, a submerged plant part and a snail activity part are arranged in the benthos zone. The snail-fish-grass stereo integrated system purifies and remedies a high-concentration nitrogen-phosphorus water body by a bioremediation technology, is strong in adaptability, high in efficiency of remedying the water body per unit volume, eco-friendly, low in production and maintenance costs and good in remedying effect, increases economic benefits, saves remedying fund, and is beneficial to popularization and application to an eutrophic water zone.

Description

technical field [0001] The invention relates to the technical field of water body purification, in particular to a three-dimensional integration system of snail grass for controlling eutrophication of water body. Background technique [0002] Eutrophication of water body is one of the important signs of extreme deterioration of water quality, and it is also a serious problem in water pollution in the world today. With the development of industry and agriculture, more and more pollutants such as NP are produced in people's life and industrial and agricultural production. Many places enter the water body, causing aquatic plankton, especially algae to multiply, causing serious eutrophication and a series of vicious circles, making some rivers, ponds and reservoirs completely lose their utilization functions due to severe eutrophication, which not only restricts It not only affects the availability of water resources, but also directly affects human health, and restricts the sus...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F101/10C02F101/16
CPCC02F3/327C02F2101/105C02F2101/16
Inventor 李伟东沙旭明施辰阳白炜炜陈李庆俞菁陈柏峰
Owner HANGZHOU NORMAL UNIV QIANJIANG COLLEGE
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