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Biological slow-filtration device

A technology of biological and slow filter tubes, applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems that the slow filtration effect is not easy to guarantee, and achieve low cost and good slow filtration The effect, the effect of simplifying the construction and installation

Inactive Publication Date: 2014-04-02
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the slow filtration effect in the prior art is not easy to guarantee, the embodiment of the present invention provides a biological slow filtration device

Method used

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Embodiment 1

[0037] as attached figure 1 As shown, the embodiment of the present invention provides a biological slow filter device, including a water storage tank 1 with a rainwater pipe 3 and a clean water tank 2, and the biological slow filter device also includes: Describe the slow filter tube 4 between the clear water pools 2, the two ends of the slow filter tube are respectively provided with a first elbow 41 and a second elbow 42, and the first elbow 41 communicates with the reservoir 1 , the second elbow 42 communicates with the clear water pool 2, and the slow filter tube 4 is also provided with a filter material.

[0038] In the biological slow filter device provided by the embodiment of the present invention, the slow filter tube 4 with a first elbow 41 and a second elbow 42 at both ends is arranged between the water storage tank 1 and the clean water tank 2, so that the first The elbow 41 communicates with the reservoir 1, the second elbow 42 communicates with the clean water ...

Embodiment 2

[0064] By adopting the biological slow filter device provided by the embodiment of the present invention, the water in a water cellar in a certain rural area is subjected to biological slow filter treatment, wherein the filter structure is selected from a slow filter tube made of hard plastic material, and its length is 1.2m. The inner diameter of the tube is 200mm, and the filled filter material is selected from quartz sand with a particle size of 0.2-0.5mm. Before being treated by the biological slow filter device of the present invention, the total number of bacteria in the water in the water cellar is 967CFU / ml, the chroma is 10 degrees, the turbidity is 15NTU, and the total coliform group is 1113MPN / 100ml. After being treated by the biological slow filter device of the present invention, the total number of bacteria in the water body in the water cellar is 75CFU / ml, the chroma is less than 5 degrees, and the turbidity is 0.5NTU. The total coliform group is not detected, an...

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Abstract

The invention discloses a biological slow-filtration device, belonging to the field of rainwater recycling. The biological slow-filtration device comprises an impounding reservoir with a rainwater tube, a clear water reservoir, and a slow-filtration tube which is horizontally arranged at a joint between the impounding reservoir and the clear water reservoir, wherein the impounding reservoir and the clear water reservoir are communicated with each other by the slow-filtration tube; elbows are arranged at the two ends of the slow-filtration tube; a filter material is arranged in the slow-filtration tube. Rainwater in the impounding reservoir is percolated by the filter material in the slow-filtration tube, so that water quality is purified, and the purified rainwater enters the clear water reservoir under action of water-head difference. As the slow-filtration tube with the elbows at the two ends is adopted, bricking on site is avoided and the probability that water flow short-circuit is caused by partial water leakage of the slow-filtration tube is reduced; the filter material is more convenient and easily controlled to fill and replace, and the elbows prevent the filter material from overflowing out of the slow-filtration tube, so that a better slow-filtration effect is ensured. The impounding reservoir, the clear water reservoir and the slow-filtration tube are automatically integrated, and the slow-filtration tube is convenient to mount, dismount and replace, so that manufacturing cost can be effectively lowered, construction installation is simplified, and a slow-filtration purifying effect is ensured.

Description

technical field [0001] The invention relates to the field of rainwater recovery and utilization, in particular to a biological slow filter device. Background technique [0002] Some areas that lack drinking water sources often collect rainwater as drinking water. In order to improve the water quality of the collected rainwater, people have adopted different technologies including biological slow filtration technology to treat the collected rainwater. Among them, the biological slow filtration technology has a better treatment effect. During normal operation, the effluent water quality can meet the requirements of "GB5749-2006 (Drinking Water Hygienic Standard)". [0003] At present, the biological slow filtration device for rainwater collection and storage mainly includes: a storage tank connected to the rainwater pipe, and a clear water tank next to the storage tank, wherein a slow filter sand tank is built between the clear water tank and the storage tank. And the clean ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34
Inventor 丁昆仑孙文海贾燕南高黎辉
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES