KR19990073490A - Wastewater Treatment Apparatus and Method Using Rotating Biofilm Contact Tube Reactor - Google Patents

Abstract

The present invention relates to a sewage treatment method comprising one or more anaerobic treatment chambers, an aerobic treatment chamber, a sedimentation tank and a discharge tank, and in particular, a porous circular or polygonal drum which rotates in the anaerobic chamber and the aerobic chamber has granular activated carbon, ceramics, etc. The present invention relates to an apparatus and a process for treating sewage by completely or partially submerging a rotating biofilm contact reactor filled with a carrier of. The first confined chamber for the first anaerobic treatment of sewage flowing into the technical configuration, the second anaerobic chamber for secondary treatment of the sewage with a rotary biofilm contact tube reactor equipped with a drum and a carrier under anaerobic conditions, aerobic conditions Microbial which is a problem of sewage treatment apparatus in treating sewage, consisting of the first and second chambers for treating sewage and the second chamber, sedimentation chamber, and discharge chamber for tertiary treatment of sewage by the rotary biofilm contact reactor under It is possible to sufficiently overcome the deactivation of the present invention provides an apparatus and method for stabilizing the treated water quality.

Description

Wastewater Treatment Apparatus and Method Using Rotating Biofilm Contact Through Reactor {.}

The present invention relates to a sewage treatment apparatus and a process for applying the same, and more specifically, after filling a carrier such as granular activated carbon or ceramic in a porous circular or polygonal drum rotating in an anaerobic tank and an aerobic tank of the sewage treatment apparatus, the submersible is completely submerged in the sewage treatment apparatus. Or it relates to a device and process for treating sewage by submerging in part.

Conventional general sewage purification treatment precipitates sediments of one or more anaerobic treatment chambers for treating sewage under anaerobic conditions, one or more times under anaerobic conditions, an aerobic treatment chamber for treating sewage under aerobic conditions, anaerobic and aerobic sewage. It consists of a sedimentation tank and a discharge tank. In general, relatively small facilities and devices are required for treating sewage generated not only at home but also at public hospitality, restaurants, lodging facilities, and public baths.

Existing septic tanks in the technical field of the present invention are to reduce the BOD and remove the SS component in the sewage by the activation of the adherent microorganisms, but if the activation of the adherent microorganism fails, it causes a huge obstacle to the treatment This often exceeds the legal limit standards for sewage treatment. In addition, a large amount of oxygen is required to satisfy the aerobic conditions in the aerobic room, and a huge amount of power is consumed due to the operation of oxygen supplying devices. This is big. Accordingly, there is an urgent need for a process for maintaining microbial activity in the aerobic tank during the aerobic treatment process and a process technology for fixing a large number of microorganisms. Accordingly, an object of the present invention is to provide a microbial activity and fixation maintenance rotating biofilm contact reactor (RBFDR) integrally by the rotation axis in the anaerobic chamber and the exhalation chamber in order to alleviate the above problems. The present invention provides a sewage treatment apparatus with improved sewage treatment process steps.

Existing sewage treatment apparatus to which the present invention belongs is to lower the BOD in the sewage and remove the SS component by the activation of the adherent microorganisms or floating microorganisms in the sewage purification chamber, but if the activation of the adherent microorganism fails In many cases, the treatment limits are exceeded, exceeding the standard limits set by the Law on Sewage Treatment. Accordingly, there is an urgent need for processes and techniques for activating immobilized microorganisms and mass culturing in aeration tanks during aerobic processes.

1 is a schematic view showing a schematic process of a sewage treatment apparatus according to the present invention.

Figure 2 is a longitudinal sectional view of the anaerobic chamber apparatus, aerobic chamber apparatus according to an embodiment of the present invention.

Figure 3 illustrates a stationary phase carrier filled in the device of the present invention in accordance with a preferred embodiment of the present invention.

4A and 4B are schematic views of a device implemented in accordance with one preferred embodiment of the present invention.

Explanation of symbols on the main parts of the drawing

1: 1st anaerobic chamber 2: 2nd anaerobic chamber

3: Unit 1 Room 4: Unit 2

5: settling chamber 6: discharge tank

7: rotating biofilm contact through reactor 8: carrier

9: axis of rotation

The present invention provides a sewage inlet, a first anaerobic chamber for treating sewage under anaerobic conditions (1), a second anaerobic chamber (2) for treating sewage under anaerobic conditions, and sewage under aerobic conditions. Consisting of a first aerobic chamber (3) to be treated, a second aerobic chamber (4) to treat sewage under aerobic conditions, a precipitation chamber (5) and a discharge chamber (6) for precipitating sediments of anaerobic and aerobic treated sewage In the sewage treatment apparatus, a rotary biofilm contact in which the filling of the carrier 8, such as activated carbon, ceramics, or the like is filled in the porous circular or polygonal drum in the second anaerobic chamber 2 and the first and second chambers 3 and 4, respectively. The drum and the wastewater treatment apparatus including a rotary biofilm contact through reactor (7) including a reactor for filling the inside of the rotary biofilm contact reactor with a filling net in a plurality of holes formed therein, and the drum; Filled with a carrier Activated carbon and plastics are formed inside the rotating biofilm contact reactor 7 in which the whole biofilm contact reactor 7 forms a porous hole of 1 to 50 mm to allow the sewage to freely enter and come into contact with a carrier filled therein. A natural inorganic carrier (8) such as a carrier, a ceramic carrier, a zeolite, or the like, or a filler having a plurality of holes formed therein, and the rotary biofilm contact reactor; Fully submerged or partially submerged in the second anaerobic chamber to treat sewage, and half or partially submerged in the first and second anaerobic chambers to treat sewage, and the carrier filling rate in the rotary biofilm contact reactor is 50 to 100%, The rotational speeds of the rotary biofilm contact reactors 7 integrally mounted in the second anaerobic chamber 2 and the first and second ventilator chambers 3 and 4 are operated in the range of 0.1 to 10 rpm. It characterized in that it comprises a method.

According to the present invention, it is possible to activate the anaerobic microorganisms in the second anaerobic chamber to the maximum, to activate the aerobic microorganisms in the first and second aerobic chambers to the maximum, and to force the oxygen in the first and second aerobic chambers. Even without the provision of a supply facility, the rotating biofilm contact reactor can reduce the power cost of sufficient contact with oxygen in the air, and can sufficiently remove BOD and SS from sewage, thereby satisfying the standards set by law.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The sewage treatment apparatus according to the present invention, as shown in Fig. 1 to purify the sewage, the first anaerobic treatment for the first sewage under the anaerobic conditions, 1 anaerobic chamber (1), the second anaerobic treatment of sewage under anaerobic conditions Rotary biofilm contact reactor (7) integrally formed with the chamber (2) and the second anaerobic chamber, the first bioreactor chamber (3) for tertiary treatment of sewage under aerobic conditions, and the rotary biofilm contact integral with the first exhalation chamber It consists of a reactor 7, a second aerobic chamber 4 for treating wastewater under aerobic conditions, a precipitation chamber 5 and a discharge tank 6.

In the sewage treatment apparatus, the anaerobic rotary biofilm contact reactor 7 is integrally installed inside the second anaerobic chamber 2, and the rotary shaft 9 is equilibrated or perpendicular to the direction of the sewage treatment at 0.1 to 10 rpm. Rotate at speed. In addition, the rotary biofilm contact reactor 7 is integrally mounted inside the first and second chambers 3 and 4, and the rotary shaft is installed at an equilibrium or right angle with respect to the treatment direction of the sewage. Rotate at a speed of ˜10 rpm. In addition, as shown in FIG. 2 of the rotating biofilm contact through reactor 7, the diving ratio is 40% to 99.9%.

Schematic of the device according to the present invention is used as the material of the rotating biofilm contact cylinder reactor as shown in Figure 3 to create a hole of 1 to 50 mm in the iron plate or stainless steel plate, or use an iron, stainless, plastic net, or the like, The diameter of the reactor is 50-3000mm, the length is 500-6000mm, the shape is cylindrical or polygonal cylinder, the drive shaft is made of stainless or iron round rod, and the diameter is in the range of 100-500mm. The total length of the drive shaft is 700-8000mm, and the carrier filled therein is granular activated carbon, plastic carrier, ceramic carrier, polymer seal carrier, natural inorganic carrier (8), and the filling is again made of spherical stainless steel or It is filled with a wire mesh and refilled in a rotating biofilm contact tube reactor. The size of the spherical mesh is 10-100 mm.

In the case of anaerobic chamber and aerobic chamber of the rotary biofilm contact reactor according to the present invention, the submersion rate is 40 to 99.9%.

The sewage treatment apparatus of the present invention as described above is a relatively small treatment apparatus, which is suitable for general homes, restaurants, hospitality, bathhouses, lodging establishments, etc., and when the apparatus is modularized into several dozens, hundreds or thousands, It can be used as a sewage treatment unit and an advanced sewage treatment plant in a treatment plant If it is within the equivalent range to which the spirit of the present invention described above is applied, it is not necessary to limit the dimensions to a certain standard and it is not necessarily limited to the examples below.

Example

Tables 1 to 5 show the concentration ranges generated in restaurants, inns, baths, sewage treatment plant influent, sewage treatment plant effluent, and the results of using the apparatus of the present invention.

TABLE 1

Example 1 Concentration Range and Removal Efficiency of Sewage Generated in a Restaurant

TABLE 2

Example 2 concentration range and removal efficiency of wastewater issued by the inn

TABLE 3

Example 3 concentration range and removal efficiency of sewage generated in the bath

TABLE 4

Example 4 concentration range and removal efficiency of sewage flowing into the sewage treatment plant

TABLE 5

Example 5 concentration range and removal efficiency of treated water in sewage treatment plant

As described above, the rotary biofilm contact reactor (RBFDR) is provided to small scale sewage and sewage treatment plants, so that the deactivation of microorganisms, which is a problem of the conventional sewage treatment plant apparatus, can be sufficiently overcome. Satisfaction will contribute to the advanced sewage treatment of sewage treatment plants, and to achieve eutrophication and prevention of public waters, and to create safe drinking water environment.

Claims (5)

First anaerobic chamber (1) for first treatment of sewage under sewage inlet and anaerobic conditions to purify sewage, second anaerobic chamber (2) for treating sewage under anaerobic conditions, third treatment for sewage under aerobic conditions A sewage treatment apparatus consisting of a first aerobic chamber (3), a second aerobic chamber (4) for treating sewage under aerobic conditions, a sedimentation chamber (5) and a discharge chamber (6) for precipitating sediments of anaerobic and aerobic sewage. To It is comprised in the said 2nd anaerobic chamber 2 and the 1st and 2nd aerobic chambers 3 and 4, The 2nd anaerobic chamber 2 and the 1st and 2nd aerobic chambers 3 and 4 by the rotating shaft 9 are provided. A porous cylindrical or polygonal drum configured integrally with the rotary biofilm contact reactor (7) and a rotary biofilm contact reactor (7) comprising a filler to fill a carrier (8) such as activated carbon or ceramic in the drum; Sewage treatment apparatus comprising a filling net for filling the filling into the net having a plurality of holes formed therein. First anaerobic chamber (1) to treat sewage under anaerobic conditions to purify sewage, second anaerobic chamber (2) to treat sewage under anaerobic conditions, and first unit room to process sewage under aerobic conditions (3), in the method of sewage treatment consisting of a second aerobic chamber (4) for treating sewage under aerobic conditions, a precipitation chamber (5) and a discharge chamber (6) for precipitating sediments of anaerobic and aerobic treated sewage; It is comprised in the said 2nd anaerobic chamber 2 and the 1st and 2nd aerobic chambers 3 and 4, and the 2nd anaerobic chamber 2 and the 1st and 2nd aerobic chambers 3 and 4 by the rotating shaft 9, Rotating biofilm contact reactor comprising an integrated circular or polygonal drum, and a filling network in which the filler, which is a carrier 8 such as activated carbon, ceramics, or the like is filled in the drum having a plurality of holes formed therein; The sewage treatment method characterized by treating sewage by 7). 3. The rotary biofilm contact reactor (7) in which the drum (8) is filled in the drum has a porous hole (1 to 50 mm) for freely entering and contacting the carrier (8) filled with sewage. Sewage treatment method characterized in that. The process according to claim 2, wherein the rotary biofilm contact reactor (7) is completely submerged or partially submerged in the second anaerobic chamber (2) to treat sewage and half submerged or partially in the first and second ventilators (3,4). Sewage treatment method characterized in that to treat the sewage by diving. 3. The filling rate according to claim 2, wherein the filling rate of the carrier 8 in the rotary biofilm contact reactor 7 integrally formed with the second anaerobic chamber 2 and the first and second breathing chambers 3, 4 is 50 to 100%. And a rotation speed of 0.1 to 10 rpm.