Integral sputtering-oxygenating-biofiltering waste water purifying apparatus and process

A technology for biological filtration and sewage purification, applied in the field of sewage treatment, can solve the problems of difficult and small-scale sewage treatment promotion and application, unsatisfactory removal effect, inability to meet requirements, etc., achieve good organic matter removal and denitrification effect, and facilitate large-scale promotion The effect of applying, reducing operating and administrative costs

Inactive Publication Date: 2007-03-21
SOUTHEAST UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

Due to the large biomass, the reactor is required to have a strong oxygenation effect, especially when it has the function of nitrification, the demand for oxygen supply is further increased, and the traditional natural ventilation can no longer meet the requirements.
Moreover, because the traditional biofilter process is an open system, filter flies will be produced in high temperature seasons, which will deteriorate the surrounding environment.
Using a single biological filter to treat sewage has a good removal effect on BOD, but the removal effect on N and P is not ideal
The use of forced oxygenation methods such as mechanical aeration can solve the oxygen supply problem, but its power consumption is large and the operating cost is high, so it is difficult to popularize and apply it in small sewage treatment

Method used

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  • Integral sputtering-oxygenating-biofiltering waste water purifying apparatus and process
  • Integral sputtering-oxygenating-biofiltering waste water purifying apparatus and process

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Embodiment Construction

[0016] The device of the present invention mainly comprises an anaerobic denitrification reactor 1, a splashing water oxygenation biological filter reactor 2, and a sedimentation zone 3 arranged horizontally, and the upper part of the anaerobic denitrification reactor 1 is connected to the splashing water through a connecting pipe 8. The upper part of the oxygenated biological filtration reactor 2 is connected, and the lower part of the splashing water oxygenated biological filtration reactor 2 is connected with the sedimentation area 3 through the ventilation duct 12, the water outlet area 4 is located on one side of the sedimentation area 3, and the air outlet pipe 18 is located On the sedimentation outlet area cover plate 19 above the area 3, the water outlet 20 is connected with the anaerobic denitrification reactor 1 and the water outlet area 4 respectively through pipelines, and the water inlet pipe 5 is positioned at the top of the anaerobic denitrification reactor 1; Th...

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Abstract

The present invention is integral sputtering, oxygenating and biofiltering waste water purifying apparatus and process, and belongs to the field of sewage treating technology in environmental engineering. The advanced sewage treating technology is for use in subzone, school and countryside. The sewage purifying apparatus includes parallel anaerobic denitrogenating reactors, sputtering, oxygenating and biofiltering reactor and precipitating area. Sewage is treated in the anaerobic denitrogenating reactors, the sputtering, oxygenating and biofiltering reactor and the precipitating area successively, and part of the output water is returned to the anaerobic denitrogenating reactors. The present invention has high organic matter and nitrogen eliminating efficiency.

Description

technical field [0001] The invention is a sewage treatment technology in the discipline of environmental engineering, and is an advanced technology applied to domestic sewage treatment in communities, schools and rural areas. Background technique [0002] At present, biological treatment is the main method of sewage treatment, which can be divided into activated sludge method and biofilm method. Due to mature technology and reliable equipment, the activated sludge method is widely used in large-scale sewage treatment plants, but it has problems of unstable operation and high energy consumption in small-scale sewage treatment. The main forms of biofilm method are: biological filter, biological turntable and biological contact oxidation method, etc., which are mostly used for small and medium-sized sewage treatment. [0003] Biological filtration technology uses microorganisms growing on the surface of the filler in the filter to treat sewage. It has the characteristics of la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
CPCY02W10/10
Inventor 李先宁吕锡武李孝安
Owner SOUTHEAST UNIV
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