KR200273504Y1 - Dirty and waste water treatment device - Google Patents

Abstract

The present invention relates to a wastewater treatment device, the purpose of which is to zigzag the plate to expand the specific surface area and increase the air residence time in the water to improve the oxygen utilization rate, aerobic and nitriding, The present invention provides a wastewater treatment system that causes denitrification. It bends the plate in a zigzag, and stacks a plurality of them, and the first filter part and the second filter part which form a flow path through which the waste water passes through the plate and the plate in the direction of gravity, and the first filter part and the first filter part. Located between the two filter parts, it is composed of the aeration part to give up entirely in the direction of the first filter.

Description

Wastewater Treatment System {DIRTY AND WASTE WATER TREATMENT DEVICE}

The present invention relates to a wastewater treatment apparatus, and more particularly, to bend the plate in a zigzag, and to stack a plurality of layers to form an aeration between the first and second mediators forming a flow path, thereby expanding the specific surface area. In addition, the present invention relates to a wastewater treatment apparatus that improves oxygen utilization.

In general, biological treatments for removing organic contaminants present in sewage and wastewater using microorganisms include activated sludge and biofilm treatment.

In the biofilm treatment method, microorganisms are adhered to a fixed or fluidized medium by using microbial adhesion growth, and as a result of the growth of cells, a biofilm of mucus is formed on the surface of the medium, and the biofilm is contaminated. Purification by contacting with water includes a water spray filtering method, a rotating disk method, a catalytic oxidation method, and the like.

Among them, the catalytic oxidation method can be classified according to the aeration method of blowing air, the installation state of the media and the shape of the media.

Categorizing the contact oxidation method according to the aeration method includes a central aeration in the center of the tank, a unilateral aeration on one side, a front aeration in the front.

The catalytic oxidation method is classified according to the installation state of the filter medium, and the fixed bed method is fixed so as not to move the filter medium in the tank, and the contaminated water is contacted and purified by the biofilm formed on the surface of the filter medium. There is a fluidized bed method for purifying by contacting contaminated water with a biofilm formed on the surface of the media while flowing in water.

Categorizing the contact oxidation method according to the shape of the filter medium is sand, activated carbon, and the like as an amorphous granular media, and interlocks, which are molded granular media, and bar, bamboo, There are polycyclic strings, and as a flat or reticulated media, there are asbestos plates, wooden boards, plastic plates, bones, and tins.

As described above, the conventional catalytic oxidation method has been recently spotlighted as it is easy to expand the specific surface area by the development of plastic media, and the nitriding occurs and economical in terms of construction, operation, and maintenance costs.

This conventional catalytic oxidation method increases the amount of oxygen required by the expansion of the biofilm as the specific surface area is expanded by the use of plastic media, and the increase in the amount of oxygen is supplemented by increasing the flow rate or increasing the aeration amount.

However, when the flow rate is increased or the aeration amount is increased, turbulence occurs and the biofilm is inevitably destroyed by the turbulence.

In addition, there is a problem that the abandonment costs increase excessively with the increase in the oxygen demand.

The present invention has been made to solve such a conventional problem, and its purpose is to bend the plate in a zigzag to expand the specific surface area and to increase the air residence time in water to improve the oxygen utilization rate, exhalation and The present invention provides a wastewater treatment device that causes nitriding and denitrification.

1 is a perspective view of a waste water treatment apparatus according to the present invention.

Figure 2 is a front view of the waste water treatment apparatus according to the present invention.

Figure 3 is a perspective view of a flat plate according to the present invention.

Figure 4 is a front view showing a flat plate according to the present invention.

(Explanation of symbols for the main parts of the drawing)

10, 20: 1st and 2nd Contributor 11: Reputation

12: blocking member 13: spacing member

14: euro 30: aeration

The present invention for achieving the above object is to bend the plate in a zigzag, laminating a plurality of first, and the first filter and the second filter to form a flow path through which the waste water flows between the plate and the plate in the direction of gravity; It is located between the first filter portion and the second filter portion, it is composed of the aeration portion to give up entirely in the direction of the first filter portion.

In addition, the upper end of the second filter portion is nitriding, the lower end is denitrification.

The apparatus may further include a plurality of spacing members to prevent blocking of the flow path between the plate and the plate.

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

1 to 4 is a view showing the wastewater treatment apparatus of the present invention.

As shown in the figure, the wastewater treatment system is composed of first and second filter parts 10 and 20 and aeration part 30. Hereinafter, since the configuration of the first and second filter parts 10 and 20 is the same, reference numerals are given around the first filter part 10.

The first and second filter parts 10 and 20 are bent in a zigzag manner at regular intervals along the longitudinal direction of the flat plate 11, and a plurality of the plurality of stacked layers are stacked between the flat plate 11 and the flat plate 11. The flow path 14 through which is passed is formed.

That is, the flow path 14 is formed in accordance with the height of the blocking member 12 by protruding the blocking member 12 in a longitudinal direction at both ends of the flat plate (11).

In addition, a plurality of spacing members 13 are provided along the width of the flat plate 11 to prevent blocking of the flow path 14 formed between the flat plate 11 and the flat plate 11.

That is, when the length of the width is increased, the tension is lowered to prevent the plate 11 and the plate 11 from contacting each other.

The flow path 14 is formed in the direction of gravity, and the flow of waste water is made smoothly, and because it is long in the horizontal direction, it is not blocked and backwashing is unnecessary.

Then, the first and second filter parts 10 and 20 are positioned up and down, and the aeration part 30 is provided between them.

The aeration part 30 is to supply oxygen into the wastewater and wastewater, and is installed below the first filter part 10 to completely give up the inside of the first filter part 10.

This is because the air moves upward along the plurality of flow paths 14 of the first filter portion 10 formed by the zigzag, so that the air residence time in the water increases.

Therefore, the oxygen utilization rate is increased, thereby reducing the abandonment cost.

The flat plate 11 is more preferably made of a thin plate of synthetic resin material.

The second filter unit 20 is the upper end of the aeration to the air abandoned in the aeration unit 30 is aerobic treatment, the lower end is anaerobic treatment.

In other words, nitriding occurs at the top and denitrification occurs at the bottom to remove nitrogen as well as organic matter.

Referring to the operation according to the present invention in detail as follows.

The wastewater treatment apparatus of the present invention is formed by bending the flat plate 11 at a predetermined interval and at a predetermined angle and stacking a plurality of the first and second filter parts 10 and 20 to form the first and second filter parts. The aeration part 30 is installed between (10) and (20).

Then, the plurality of flow passages (14) formed by zigzag zipping the air provided from the aeration portion 30 and the waste water flows through the flow passage 14 formed between the plate 11 and the plate 11 By flowing along the inside of the first filter part 10, the organic matter contained in the wastewater is removed by the microorganisms attached and grown in the plurality of flow paths 14.

As the process is an aerobic process, as air flows in a plurality of flow paths 14 in a zigzag manner, air retention time in water is increased to reduce abandonment cost.

The wastewater that has passed through the first filter part 10 is introduced into the second filter part 20 in a state in which organic matter is removed. The upper end of the second filter part 20 is supplied with air under the influence of the aeration part 30, and the wastewater, in which the organic matter is substantially removed, is introduced. In this process, nitriding occurs.

The nitriding is generated in a state in which there is little organic matter and rich in oxygen.

The wastewater which has undergone the nitriding process is subjected to a denitrification process at the bottom of the second filter part 20. The denitrification occurs in a state where an appropriate organic material is required in an anoxic state, and the nitrate nitrogen formed during the nitriding process is removed by the nitrogen gas.

As described above, the filthy and wastewater passing through the first filter unit 10 and the second filter unit 20 in sequence sequentially causes nitriding and denitrification as well as organic matter.

The wastewater treatment apparatus of the present invention as described in detail above, by expanding the specific surface area by zigzag bending the media of the flat plate in a fixed phase, there is no blockage of the flow path, it is easy to operate, no backwashing.

In addition, by forming an aeration part in the center of the first and second filter parts to lengthen the underwater residence time of air on a plurality of flow paths formed in the first filter part of the upper part, the oxygen utilization rate becomes high, and nitriding and Denitrification removes nitrogen as well as organic matter from wastewater.

Claims (3)

The first filter part 10 which bends the flat plate 11 in a zigzag, and stacks a plurality of the flat plates 11 and forms a flow path 14 through which the wastewater and waste water pass between the flat plate 11 and the flat plate 11 in the direction of gravity. And a second filter part 20; Located between the first filter part 10 and the second filter part 20, the wastewater treatment, characterized in that consisting of the aeration part 30 to give up in the total direction in the first filter part 10 direction Device. The wastewater treatment apparatus according to claim 1, wherein an upper end of the second filter part 20 is nitrided and a lower end is denitrified. The waste water according to claim 1 or 2, further comprising a plurality of gap holding members (13) for preventing the passage of the flow path (14) between the plate (11) and the plate (11). Processing unit.