Bacterium-alga filler strengthened combined type ecological floating bed and water body purification method therefor
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An ecological floating bed and combined technology, applied in chemical instruments and methods, biological water/sewage treatment, water pollutants, etc., can solve problems such as water environmental pollution, achieve efficient restoration, reduce energy consumption, and increase or decrease filling density Effect
Active Publication Date: 2020-02-18
JIANGSU LONG LEAPING ENG DESIGN
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[0005] The invention provides a combined ecological floating bed reinforced with bacteria and algae fillers, which can realize all-round and efficient restoration of the spatial level of rivers and lakes, and solve the problem of water environment pollution
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Embodiment 1
[0044] A kind of bacteria and algae filler strengthens combined ecological floating bed, such as figure 1 As shown, it includes a filter device 1, a purification device 2, and an enhanced adsorption device 3 arranged in sequence in the direction of water flow.
[0045] The filtering device 1 includes a nylon filter screen 11 and a deflector 12 arranged in sequence according to the water flow direction. Three layers of nylon filters with different apertures are arranged in parallel, and the aperture size gradually decreases with the direction of water flow. The number of layers of nylon filters can also be two layers, four layers, five layers, six layers, etc., according to the actual situation of sewage increase or decrease.
[0046] The deflector 12 is vertically fixed below the bed body 216 , and its length extends to the top of the submerged plant layer 24 . The deflector 12 can make the water flow pass through the immobilized algae filler layer 25 and the submerged plant...
Embodiment 2
[0061] The application test was carried out in a polluted river course with inferior V quality water quality in a certain city (with COD, ammonia nitrogen, and total phosphorus as evaluation indicators).
[0062] COD, NH in raw sewage 3 The contents of -N and TP were 120mg / L, 10mg / L and 4mg / L respectively.
[0063] According to literature records, after the ecological floating bed of the prior art treats the river water body, COD, NH 3 -N, TP removal rates can only reach 50% to 60%, 70% to 80% and 70% to 80%.
[0064] Adopt the device and method of embodiment 1, carry out sewage treatment: after treatment, COD, NH in sewage 3 -N, TP content is 21.12mg / L, 0.75mg / L, 0.228mg / L, the removal rate of COD of the ecological floating bed system of the present invention is 82.4%, the removal rate of ammonia nitrogen reaches 92.5%, and the removal rate of total phosphorus The rate reaches 94.3%.
[0065] Compared with the prior art, the two sides of the floating frame of the ecologic...
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Abstract
The invention belongs to the field of water environment governance and particularly relates to a bacterium-alga filler strengthened combined type ecological floating bed and a water body purificationmethod therefor. The bacterium-alga filler strengthened combined type ecological floating bed comprises a filtering device, a purifying device and a strengthened adsorbing device which are arranged sequentially according to a water flow direction, so as to form a preliminary filtering-efficient purifying-advanced strengthened treatment repair process, and the water quality of water body can be effectively improved from an upstream to a downstream; the purifying device comprises an emergent-plant bed, a suspending filler layer, a microporous aerating layer, a submerged plant layer and an immobilized bacterium-alga filler layer which are arranged sequentially from top to bottom, the microporous aerating layer serves as a limit, an aerobic zone is formed upwards, and a hypoxic-anaerobic zoneis formed downwards through gradual transition; and due to spatial changes of aerobic-hypoxic-anaerobic and the characteristic that the immobilized bacterium-alga filler layer is rich in high-activitymicroorganisms, the proceeding of nitration and denitration reactions is strengthened, the efficiency of denitrification and dephosphorization of the ecological floating bed is increased, lower-layerspace of the water body is effectively utilized, and thus, the water surface-to-underwater depth type governance and repair of the water body is achieved.
Description
technical field [0001] The invention belongs to the field of water environment treatment, and in particular relates to a bacteria and algae filler reinforced combined ecological floating bed and a method for purifying water quality thereof. Background technique [0002] Due to the increase of human activities, domestic and industrial waste water flows into rivers and lakes in excess, and hard revetments and hard bottoms also affect the ecological environment of water areas. The problem of eutrophication of water bodies has been highly valued by people. In response to this situation, water quality improvement technologies have begun to rise, which can be roughly divided into physical methods, chemical methods, and biological-ecological methods. Under normal circumstances, physical methods have problems such as high cost and temporary solutions but not root causes. Chemical methods have problems such as unstable treatment effects, and improper treatment can easily cause second...
Claims
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