Ecological floating island with biofilm reaction function and water treatment method

An ecological floating island and biofilm technology, applied in the field of water treatment, can solve the problem of high energy consumption, achieve the effect of reducing system energy consumption, convenient and flexible operation and management, and good water quality

Active Publication Date: 2014-09-10
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the reactor needs to be fixed in a container, and the sewage to be treated must be pumped into the container through the water inle...

Method used

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  • Ecological floating island with biofilm reaction function and water treatment method
  • Ecological floating island with biofilm reaction function and water treatment method
  • Ecological floating island with biofilm reaction function and water treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] An ecological floating island water treatment method with biofilm reaction function, comprising the following steps:

[0039] (1) Aquatic plants are put into the grid of the grid plate 2 of the above-mentioned ecological floating island with biofilm reaction function;

[0040] (2) Put the device obtained in step (1) into the sewage (the bacteria in the sewage will automatically hang the film), start the air pump 8, and control the air pressure so that the gas flow of each column type hollow fiber membrane module 3 is 5L / h, also can be 10L / h, 20L / h, 30L / h, 40L / h or 50L / h.

Embodiment 2

[0042] An ecological floating island water treatment method with biofilm reaction function, comprising the following steps:

[0043] (1) Use the above-mentioned ecological floating island with biofilm reaction function;

[0044] (2) Unscrew the joint 5 to separate the column type hollow fiber membrane module 3 connected with the first air inlet pipe 10 from the second air inlet pipe 6;

[0045] (2) Artificially strengthen the column-type hollow fiber membrane module 3 to hang the membrane;

[0046] (3) put aquatic plants in the grid of grid plate;

[0047] (4) the column type hollow fiber membrane module connected with the artificially reinforced film-hanging of the first air inlet pipe 10 is connected with the second air inlet pipe 6 through the joint 5;

[0048] (5) Put the ecological floating island with biofilm reaction function after the treatment of steps (1)-(4) into the sewage, start the air pump (8), control the air pressure, and make each column type hollow fiber m...

Embodiment 3

[0056] In a cuboid water tank, the volume is 1.275m 3 (1.50 × 0.95 × 1.00m), put into a kind of ecological floating island with biomembrane reaction function of the present invention, the floating body frame 1 size of the floating island is 0.95 × 0.75m, 4 column type hollow fiber membrane modules, module size ( R×H) is: Φ55×360mm.

[0057] The aquatic plants were water spinach with a plant length of about 15 cm, and a total of 30 plants were planted.

[0058] Artificially synthesized slightly polluted wastewater, the indicators are shown in Table 1;

[0059] Table 1: Water quality indicators of tested water samples

[0060]

[0061] Two kinds of ecological floating islands with biofilm reaction function that adopt natural film-hanging (method of embodiment 1) and artificially strengthened film-hanging (method of embodiment 2) to hang biofilm respectively carry out experiment small test, hydraulic retention time is 24h , the gas flow rate of each column type hollow fiber...

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Abstract

The invention discloses an ecological floating island with a biofilm reaction function and a water treatment method. The ecological floating island with the biofilm reaction function comprises a floating island floating body frame (1). The inner surface of the floating island floating body frame is connected with a grating plate (2). A first air inlet pipe (10) of each columnar hollow fiber membrane module (3) is movably connected with a second air inlet pipe (6) through a joint (5), and the top end of the second air inlet pipe (6) is connected with a check valve (7). An air pump (8) is connected with the second air inlet pipes (6) through air guide pipes (9). The outer surfaces of the second air inlet pipes (6) are movably connected with the floating body frame or the grating plate. The air pump (8) is electrically connected with a wind power generation device or a solar power generation device. Hollow fiber membranes of the columnar hollow fiber membrane modules are hydrophobic microporous membranes. The ecological floating island with the biofilm reaction function is low in cost, convenient and flexible to operate and manage, small in occupied space and diversified in fixing mode and increases the utilization rate of oxygen by utilizing biocenosis, and space arrangement can be adjusted easily; the ecological floating island can be placed in a pre-sedimentation tank of a water supply plant, is suitable for the water supply plants with the scarce urban land and has the advantages of good treated water quality, synchronous and efficient decarbonization and denitrification and a good landscape effect.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to an ecological floating island with biofilm reaction function and a water treatment method. Background technique [0002] In recent years, with the rapid development of society and economy, the discharge of water pollutants has increased year by year. Natural water bodies such as rivers, lakes and reservoirs in my country have been polluted to varying degrees. With the deterioration of my country's water environment, many drinking water sources are slightly polluted. conditions, especially water eutrophication is the most serious problem. Slightly polluted source water refers to the pollution of drinking water sources, so that some water quality indicators exceed the hygienic standards for drinking water sources. In recent years, the water quality characteristics of my country's slightly polluted water sources are mainly manifested in: the comprehensive index v...

Claims

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Application Information

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IPC IPC(8): C02F3/32
CPCY02W10/33Y02W10/37
Inventor 吴云张楠张宏伟
Owner TIANJIN POLYTECHNIC UNIV
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