Method for processing sewage to agricultural land water using UAFB reactor

A technology for domestic sewage and farmland water, which is applied in the field of farmland water, can solve the problems of high sewage treatment cost, large consumption, and narrow application range, and achieve the effects of maintaining stable pollution indicators, avoiding loss, and facilitating operation and management

Inactive Publication Date: 2009-03-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of the existing method of treating domestic sewage into farmland water, which consumes a large amount of el...

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  • Method for processing sewage to agricultural land water using UAFB reactor
  • Method for processing sewage to agricultural land water using UAFB reactor
  • Method for processing sewage to agricultural land water using UAFB reactor

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specific Embodiment approach 1

[0021] Specific embodiment one: as shown in Figure 1, the method for using UAFB reactor to treat domestic sewage as farmland water according to this embodiment is realized by the following steps: Step 1, the domestic sewage to be treated passes through the lower end of the main body 1 of the UAFB reactor The water inlet 1-1-1 enters the inverted cone body 1-2 equipped with coarse filler, the cylinder body 1-3 equipped with main filler, and the sedimentation section 1-4 from bottom to top, and the cylinder body 1-3 The volume of the main filler inside is two-thirds of the volume of the cylinder 1-3; step 2, keep the temperature of the domestic sewage to be treated in the main body 1 at 35-37°C; step 3, keep the domestic sewage to be treated in the main body 1 for 3 to 4 hours; step 4, a three-phase separator 1-4-1 is provided in the sedimentation section 1-4, and the sludge, sewage and gas in the domestic sewage to be treated are separated by the three-phase separator 1-4-1 Sep...

specific Embodiment approach 2

[0022] Embodiment 2: As shown in FIG. 1 , the coarse filler described in this embodiment is a plastic suspended filler, and the height of the coarse filler is 10 cm. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0023] Embodiment 3: As shown in FIG. 2 , the unit particle of the coarse filler described in this embodiment is a hollow triangular body with a height of 1 cm formed by inserting three rectangles with length×width=5cm×1cm. Others are the same as in the first embodiment.

[0024] Specific embodiment four: as shown in Figure 1, the unit particle of main filler described in the present embodiment is annular, and the outer diameter of described annular is 10mm, and the specific gravity of described main filler is 0.965-0.968, and the specific gravity of described main filler The specific surface area is 3m 2 / g; the specific gravity of the main filler after supporting the film is 0.98. Others are the same as in the first embodiment.

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Abstract

The present invention discloses a method for truning domestic sewage into farming water by a UAFB reactor, and relates to a sewage disposal method. The method solves problem that the prior sewage disposal method requires large electric energy consumption, is high in sludge production, and is narrow in application range. The method comprises the following steps: firstly, the domestic sewage to be processed orderly enters from upside down an inverted cone body which is filled with a rough filler, a cylinder body which is filled with a main filler, and a deposition section from a water inlet at the lower end of a body of the UAFB reactor; secondly, the temperature the domestic sewage to be processed in the body 1 is kept between 35 and 35 DEG C; thirdly, the domestic sewage to be processed is kept in the body for between 3 and 4h; fourthly, a triphase separator that is arranged on the deposition section separates sludge, sewage and gas in the domestic sewage to be processed; fifthly, the separated sewage flows out from a double U-shaped water outlet pipe which is communicated with the deposition section to irrigate a farm. The method is simple in process, reduces infrastructure cost, facilitates the operational management, and is suitable for the underdeveloped towns and rural areas.

Description

technical field [0001] The invention relates to a sewage treatment method, in particular to a method for treating domestic sewage into farmland water by using a UAFB reactor. Background technique [0002] At present, aerobic methods (such as traditional activated sludge methods) are generally used in my country to treat domestic sewage into farmland water. Although aerobic methods can achieve better treatment results, there are the following problems: 1. The aerobic method needs to treat sewage Oxygenation, oxygenation requires an oxygenation pump, which consumes a lot of electric energy. It is estimated that a sewage plant using the traditional activated sludge method consumes about 75% of the total operating cost of electric energy; 2. The yield of aerobic microorganisms is generally as high as 0.2-0.6kgVSS / kgCOD, so subsequent treatment such as dehydration, safe landfill or incineration of sludge is required, which increases the cost of sewage treatment; 3. The total hydrau...

Claims

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Application Information

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IPC IPC(8): C02F3/28
Inventor 高大文陶彧安瑞任南琪
Owner HARBIN INST OF TECH
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