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Self-aeration freshwater shell grid biological purifier

A freshwater shellfish and purifier technology, which is applied in the field of self-aerating freshwater shellfish gate biological purifiers, can solve the problems of single biological species and large power consumption, and achieve the effects of beautifying the environment, low operating costs, and reducing the degree of human interference.

Pending Publication Date: 2017-01-04
SHANDONG JIANZHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As an important measure to improve the oxygen environment of water bodies, aeration is widely used in water body restoration. Aeration boats and underwater aeration equipment are widely used in river water bodies, but the power consumption is relatively large
In addition to aeration, ecological floating islands and artificial island barriers based on biological purification technology are also increasingly widely used in response to the characteristics of large-area blank waters. Disadvantages of a single biological group

Method used

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  • Self-aeration freshwater shell grid biological purifier
  • Self-aeration freshwater shell grid biological purifier
  • Self-aeration freshwater shell grid biological purifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A self-aeration freshwater shellfish grid biological purifier comprises a carrier grid 1 on which aquatic plants 2 are fixed through a cultivation base 3, and shellfish 7 are suspended and raised through a hanging rope 8, and a carrier grid 1 is also fixed with a density of 6 self-aeration devices 9 per square meter; each self-aeration device 9 includes 6 conical air inlets 13 that are horizontally divergent, and 6 movable gears that correspond to the conical air inlets 13 one-to-one. Plate 14 communicates with each air inlet 13 and stretches into the aeration tube 15 underwater, and the position of the aeration tube 15 under the water is densely covered with aeration holes 16; the top of each self-aeration device 9 is provided with The guide fan blade 10, the guide fan blade 10 is provided with a rotating shaft 11 passing through the aeration device 9, and the rotating shaft 11 is provided with a fan blade 12.

[0032] The device is placed in the river, such as figure...

Embodiment 2

[0035] This embodiment is suitable for the treatment of water bodies with high pollution loads, and its composition is similar to that of Embodiment 1.

[0036] The difference is that, as figure 1 It shows that the carrier grid 1 is made of synthetic resin, and the aquatic plants 2 are mainly emergent plants such as reeds and cattails with better water purification effects, and the planting density should be 25 plants / m 2 ; Shellfish 7 adopts river mussels born in fresh water, and lanyard 8 adopts polyethylene rope

[0037] Such as figure 2 It is shown that the expanded vermiculite 5 wrapped with plant fiber 4 is used as the plant cultivation base 3. The expanded vermiculite 5 can not only directly absorb and adsorb pollutants in the water body, but also form a biofilm on the surface through enrichment, which can further improve water purification. As a result, the soft fiber filler 6 made of polyethylene is suspended on the cultivation base 3, and the fiber length is 150 m...

Embodiment 3

[0039] The composition of the freshwater scallop biological purifier is similar to that of Example 1. It is applied in lakes, oxidation ponds and other polluted waters with large water depth and limited self-purification ability. At the same time, different shapes and sizes of biological purification can be constructed according to the water area and distribution. device. The purifiers are connected by ropes, and they can also be fixed on the shore by ropes, which is convenient for management and operation.

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Abstract

The invention belongs to the field of biological purification of sewage, and relates to a self-aeration freshwater shell grid biological purifier. The self-aeration freshwater shell grid biological purifier comprises a carrier grid capable of floating on a water surface, wherein aquatic plants for adsorbing suspensions in water are fixed on the carrier grid or shells capable of filtering food are cultivated on the carrier grid in a hanging manner; a plurality of self-aeration devices for increasing the content of water dissolved oxygen are further fixed on the carrier grid. The self-aeration freshwater shell grid biological purifier can purify a polluted water domain in situ according to different pollution demands, and is particularly relatively good in purification effect on water purification for a large-area blank water domain; furthermore, the content of the water dissolved oxygen is increased.

Description

technical field [0001] The invention belongs to the field of sewage biological purification, and relates to a self-aeration freshwater shellfish biological purifier. Background technique [0002] With the rapid development of the economy and the continuous progress of the society, people put forward higher requirements for the quality of the water environment. How to improve the water quality of large areas of polluted waters such as rivers and lakes has become a research hotspot. For slow-flowing water bodies such as lakes and reservoirs, atmospheric reoxygenation is the main source of dissolved oxygen in the water. When there are too many nutrients such as nitrogen and phosphorus, the proliferation of algae will not only directly consume a large amount of dissolved oxygen in the water body, but also hinder Atmospheric reoxygenation process was interrupted. As an important measure to improve the oxygen environment of water bodies, aeration is widely used in water body rest...

Claims

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Application Information

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IPC IPC(8): C02F3/32
CPCC02F3/327Y02W10/10
Inventor 徐景涛孙晓梅赵聪聪武道吉王静薛维娜
Owner SHANDONG JIANZHU UNIV
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