Trickling filter type biofilm reaction tower

A biofilm and reaction tower technology, applied in sustainable biological treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of back mixing, easy blockage of tubular components, gas-liquid mass transfer efficiency Low problems, to achieve the effect of high water distribution efficiency

Pending Publication Date: 2018-09-04
CHONGQING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among them, the trickling filter biofilm reactor has become a widely used sewage treatment process because of its advantages of economy, use, and high efficiency. However, the existing trickling filter biofilm reactor also has the following shortcomings: The gas-liquid mass transfer efficiency of the biofilm reactor is low, affected by liquid dissolved oxygen, the water distribution device has a low droplet rate, slow mass transfer speed, additional aeration devices are required, and tubular components for film hanging are prone to Blockage, small aerobic area, and serious back-mixing phenomenon cannot effectively meet the growing demand for industrial and domestic sewage treatment

Method used

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  • Trickling filter type biofilm reaction tower
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  • Trickling filter type biofilm reaction tower

Examples

Experimental program
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Effect test

Embodiment 1

[0042] see Figure 1 to Figure 10 , is a specific embodiment of a trickling filter biofilm reaction tower. The trickling filter biofilm reaction tower includes a reaction tower body 1, a water distributor 2 and at least one trickling filter plate 3. In this embodiment, the number of trickling filter plates is six. The side wall of the reaction tower body 1 is provided with some air holes 4. In the present embodiment, the height of the reaction tower body is 500mm, and some air holes are divided into six layers, and the four air holes of each layer are evenly 360° circumference. The lower part of the inner cavity of the reaction tower body 1 is provided with a filtrate collecting plate 5 connected to the confluence outlet 6 through a pipeline, and the confluence outlet is provided with a valve to control the opening and closing. In order to facilitate cleaning of the filtrate collecting plate in the reaction tower body, in the reaction tower A cleaning nozzle is reserved on t...

Embodiment 2

[0045] Relationship between space height of water distribution interlayer and drop rate

[0046] Using water distributors with different space heights in the water distribution interlayer, the number of water inlet holes in the water distribution interlayer is three, the aperture is 6mm, the number of drip outlet holes is 37, the aperture is 2mm, and the diameter of the water distributor is 200mm ( With embodiment one). Connect the four-way pipe to the three water inlet holes of the water distribution interlayer, inject water into the water distribution interlayer through the peristaltic pump, control the water inlet flow to 280ml / min, turn on the peristaltic pump, and start to observe and record the water outlet of the water distributor after running for 2 minutes. Record the droplet rate of water distributors with different thicknesses of water distribution interlayer as Figure 11 shown. The results show that the water distribution interlayer has three water inlet holes w...

Embodiment 3

[0048] The relationship between drop rate and flow rate of water distributor

[0049] Using the water distributor of Example 1, the four-way pipe is connected to the water inlet holes of the three water distribution interlayers, and the peristaltic pump is used to inject water into the water distribution interlayer to control the inflow flow. After the peristaltic pump is turned on, the water entering the water distributor will be Under the action of the surface tension of the liquid, the entire water distribution interlayer is slowly diffused. After the water distribution interlayer is full, the liquid begins to drip under the action of gravity. After running for 2 minutes, the stopwatch and counter are used to record the dripping of the water distribution device after the water distribution is stable. , increasing the influent flow in turn, and drawing the data as follows Figure 12 shown. The results show that the water distribution interlayer has three water inlet holes w...

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Abstract

The invention discloses a trickling filter type biofilm reaction tower, comprising a reaction tower body, a water distributor and at least one trickling filter plate, wherein the water distributor andthe at least one trickling filter plate are installed in an inner cavity of the reaction tower body in a layered manner, the water distributor is located above the trickling filter plate, and a dripdrain hole in the water distributor and a corresponding connection hole in the trickling filter plate are on the same plumb line to form the trickling filter type biofilm reaction tower. The tricklingfilter type biofilm reaction tower is simple in structure and convenient to maintain, and sewage uniformly fall into a plurality of corresponding packing trickling filler tubes for biological treatment in a dropwise through the water distributor, thereby greatly improving the efficiency of treating sewage in a unit space, and effectively meeting the increasing requirements on treatment of industrial sewage and domestic sewage.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a drip filter biofilm reaction tower. Background technique [0002] With the continuous development of society, the discharge of industrial sewage and domestic sewage continues to increase, and a large amount of pollutants are discharged into surface water ecosystems such as rivers and lakes, changing the nutrient structure in the water, causing a large number of aquatic organisms to die, which not only causes great harm to the environment Harm, but also cause huge economic and social losses. Therefore, sewage treatment is an essential part of maintaining social development. Wastewater treatment processes are mainly based on physical, chemical and biological principles. Among them, the biological treatment technology mainly consists of two types of biological treatment technology, biofilm treatment technology and activated sludge treatment technology. Biofilm treatment technolo...

Claims

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Application Information

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IPC IPC(8): C02F3/04
CPCC02F3/04C02F3/043Y02W10/10
Inventor 张丽杰刘毫黄杨刘向阳艾铄赵天涛
Owner CHONGQING UNIV OF TECH
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