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Deposition and biological filter combined water purification system and water purification method thereof

A technology of water purification system and biological filter, applied in the direction of flocculation/sedimentation water/sewage treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc., can solve problems such as poor phosphorus removal effect, and achieve environmental protection and structure Compact, resource-saving effect

Inactive Publication Date: 2013-07-10
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the current research, it can be seen that the phosphorus removal effect of simply using the biological aerated filter is poor, and effective chemically enhanced phosphorus removal must be adopted.

Method used

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  • Deposition and biological filter combined water purification system and water purification method thereof
  • Deposition and biological filter combined water purification system and water purification method thereof

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specific Embodiment

[0016] Accompanying drawing is a kind of concrete embodiment of the present invention, and this embodiment comprises the sump 1 of collecting sewage, and sump 1 enters sedimentation tank 5 through sewage pump 2 through sewage pipe 3, the mixing pool 17 of preparation coagulant, by throwing The metering pump 18 adding coagulant is connected with the static mixer 4. After the coagulant and sewage are fully mixed in the static mixer, they enter the sedimentation tank through the sewage pipe 3. The bottom of the sedimentation tank is connected with a mud discharge pipe 16. The water treated in the sedimentation tank 5 enters the biological aerated filter tank 6 through overflow, and the bottom of the aeration tank is connected with an aeration pipe 11 connected with an air compressor 10, and a backwash pipe 15 is connected with a backwash pump 14. The upper part of the gas pool is connected with a backwash outlet pipe 20 .

[0017] Concentrate the sewage into the sump 1, and enter...

Embodiment 2

[0020] The water purification system of the sedimentation biological aerated filter in this specific embodiment is the same as the water purification system of the sedimentation biological aerated filter in the specific embodiment 1.

[0021] The difference between this water purification method and the specific embodiment one water purification method is that the air-water volume ratio of the aeration is 2:1.

Embodiment 3

[0023] The water purification system of the sedimentation biological aerated filter in this specific embodiment is the same as the water purification system of the sedimentation biological aerated filter in the specific embodiment 1.

[0024] The difference between this water purification method and the water purification method in Embodiment 1 is that the air-to-water volume ratio of the aeration is 3:1.

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Abstract

The invention discloses a deposition and biological filter combined water purification system and a water purification method thereof. The deposition and biological filter combined water purification system is characterized in that a deposition pool is positioned in an biological aerated filter, the deposition pool is connected with the biological aerated filter in an overflow mode, the bottom of the biological aerated filter is connected with an aeration device, and a raw water inlet tube is provided with a dosing device. The water purification method comprises the following steps: 1, mixing raw water with a coagulant through a static mixer; 2, flocculating; 3, depositing; and 4, filtering, biologically processing, and discharging purified water. In the deposition and biological filter combined water purification system, the deposition portion and the biological aerated filter are mutually independent, all phases in the water processing process do not influence each other, and preset processing effects of all the phases can be reached under the synergistic effect of deposition, filtration and organisms, and the discharged water quality is stable.

Description

technical field [0001] The invention relates to a combined water purification system and water purification method of a sedimentation cooperative biological filter, which can be used for the treatment of urban domestic sewage. Background technique [0002] The urban land resources are becoming more and more tense, and the land use of urban sewage treatment plants is under control. Therefore, the construction of a new sewage treatment technology with a small footprint and high treatment efficiency is suitable for my country's national conditions, is the focus of sewage treatment research, and has important practical significance for promoting the restoration of the water environment. [0003] Biological aerated filter is a form evolved from ordinary biological filter. It integrates the interception of suspended solids and biological oxidation, and has the advantages of small footprint, good effluent quality, and no sludge bulking. The SS requirements of water are relatively ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/52
Inventor 于衍真武长城冯岩谭娟高隆隆程磊索宁李妙婉
Owner UNIV OF JINAN
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