WO2016190530A1

WO2016190530A1 - Vacuum separation wastewater treatment device

Info

Publication number: WO2016190530A1
Application number: PCT/KR2016/002672
Authority: WO
Inventors: 홍민숙; 김상진
Original assignee: 주식회사 스월로썬
Priority date: 2015-05-28
Filing date: 2016-03-16
Publication date: 2016-12-01
Also published as: KR101698481B1; KR20160139791A

Abstract

The present invention relates to a wastewater treatment device. An embodiment of the present invention provides a wastewater treatment device comprising: a raw water introduction unit for dividing raw wastewater into small amounts and introducing the same; a PH adjusting agent introduction unit for introducing a PH adjusting agent for adjusting the PH concentration of the introduced raw wastewater; a mixing tank for mixing the raw wastewater and the PH adjusting agent, thereby obtaining mixed water; a first reaction tank configured such that the mixed water flows in from the upper portion of the mixing tank and moves from the lower portion of the first reaction tank to the upper portion thereof while undergoing a reaction; a coagulation reaction unit for coagulating sludge, which is contained in reacted water in the first reaction tank, such that the reacted water turns into coagulated water; a second reaction tank, into which the coagulated water is introduced, and which has a plurality of pipes such that the coagulated water is divided into fractions, which move inside the pipes while undergoing a coagulation reaction with each other; a reaction separation tank connected to the second reaction tank such that sludge, which has been coagulated from the coagulated water, is made to float and is separated; a dewatering unit connected to the reaction separation tank so as to dewater the sludge, which has been separated in the reaction separation tank, to discharge the same to the outside, and to simultaneously discharge separated water, which has been separated in the dewatering process; and a filtering unit configured such that the separated water, which has been separated by the dewatering unit, passes therethrough and the remaining sludge, which is contained in the separated water, is removed.

Description

Vacuum Separation Wastewater Treatment System

The present invention relates to a wastewater treatment apparatus for treating wastewater, and more particularly, to a wastewater treatment apparatus capable of efficiently treating a high concentration of wastewater.

In general, the currently used wastewater treatment methods include various methods such as activated sludge process, activated sludge process, and SBR method, sprinkling filter method, but all wastewater treatment methods may be derived from activated sludge process.

Activated sludge process is a system that removes sludge by sedimentation using gravity sedimentation first, and decomposes culture sludge through biological treatment process, and removes sludge by dredging sedimentation by activating sludge in thickening tank.

An important point in this wastewater treatment apparatus is to shorten the treatment time and reduce odor. This is because it is a necessary element for efficiently removing a large amount of waste water.

One conventional wastewater treatment apparatus relates to an apparatus for treating wastewater while removing sludge. There is a method of removing sludge by precipitation and microbial decomposition.

However, suspended sludge is removed from the primary sedimentation but not dissolved sludge in water, but it is decomposed into microorganisms in biological treatment.In this process, odor due to sludge decay occurs and 100% of sludge is not removed from the concentration tank. There is a problem that it is impossible to operate without removing the concentrated sludge in the.

The present invention provides a wastewater treatment apparatus for removing most of the sludge contained in the wastewater during the pretreatment process, shortening the treatment time and reducing odor.

Other detailed objects of the present invention will be apparently understood and understood by those skilled in the art through the following detailed description.

In order to solve the above problems, the present invention is an embodiment, the raw water input unit for dividing the wastewater raw water into a small amount, the input of a PH regulator for adjusting the PH control agent for adjusting the PH concentration of the raw water raw water input from the raw water input unit Part, a raw water supply from the raw water input unit and receiving the PH control agent from the PH control agent input unit to mix the wastewater raw water and the PH regulator to create a blending water, the lower portion is connected to the upper portion of the mixing tank Formulation number mentioned above A first reaction tank which flows from the upper part of the mixing tank and moves from the lower part to the upper part as the reaction occurs, an agglomeration reaction part which aggregates the sludge contained in the reaction water in which the reaction occurs in the first reaction tank to make the reaction water agglomerated water, the agglomeration Agglomeration water made in the reaction unit is introduced and a plurality of pipes are provided so that the agglomeration water is divided into a second reaction tank moving inside of the pipes as the agglomeration reaction occurs, the sludge connected to the second reaction tank and agglomerated from the agglomeration water Reaction separation tank to be separated by floating, separated from the dehydration unit and the dehydration unit which is connected to the reaction separation tank and dewatered sludge separated from the reaction separation tank and discharged to the outside at the same time to discharge the separated water separated in the dehydration process Wastewater treatment including a filtration unit that passes through the separation water and removes the remaining sludge contained in the separation water Present the device.

Here, the mixing tank is a stirrer for inducing a reaction by mixing the raw water and the PH control agent, a mechanical seal mounted on the shaft of the stirrer to maintain the inside of the mixing tank, a plurality is installed in the mixing tank And an electrode rod that generates electric force to decompose sludge contained in the wastewater raw water, a plate which separates the wastewater raw water which is installed inside the mixing tank and is introduced and mixed first, and the wastewater raw water which is introduced and mixed later. It may include an induction plate installed on the top and inducing sludge discharge contained in the wastewater.

In addition, the end of the PH regulator input pipe from which the PH regulator is discharged may be disposed inside the raw water input pipe from which the wastewater raw water is discharged.

In addition, the first reaction tank is a stirrer to stir the mixed water added to the first reaction tank to induce a reaction, an electrode rod for decomposing sludge contained in the raw water by generating a plurality of electric power generated inside the first reaction tank, the said A plurality is installed in the first reaction tank and the diaphragm separating the reaction water introduced and reacted first from the mixing tank and the reaction water introduced and reacted later, in the outlet and the outlet for dividing the reaction water into the aggregation reaction unit It may include a control valve installed to stably divide and supply the reaction water flowing into the flocculation reaction unit.

In addition, the agglomeration reaction unit is provided with a plurality of agglomeration tank, receives the reaction water from the first reaction tank, and alternately input to each of the agglomeration tank, while administering a coagulant to the agglomeration tank is generated by the reaction of the reaction water and the coagulant The flocculated sludge and separated water can be discharged.

In addition, the second reaction tank, the lower portion of the second reaction tank Being installed Bubble generator which generates bubbles by allowing sludge not to settle, but stably floats, a plurality of pipes are installed and a plurality of pipes are installed inside the pipe and the agglomeration reaction occurs while the agglomerated water flows divided into several paths. It may include an electrode for generating an electric force to decompose the sludge contained in the wastewater raw water.

The apparatus may further include a filtration unit for filtering the separated water discharged from the dehydrator, wherein the filtration unit includes a first filtration tank and a first filtration tank in which the separated water discharged from the dehydrator is introduced and a nonwoven fabric is mounted therein to remove fine sludge. Passing through the separation water may include a second filtration tank having a zeolite filter to reduce the chromaticity of the separation water.

According to the wastewater treatment apparatus of an embodiment of the present invention, it is possible to remove most of the sludge contained in the wastewater raw water in the pretreatment process, shorten the treatment time and reduce odor.

In addition, in the case of high concentration wastewater, most of the sludge is removed in the pretreatment process, thereby reducing the treatment space during the biological treatment, which is the post-treatment process, and reducing the initial facility investment and maintenance costs.

In addition, in the case of low concentration wastewater, all activated sludge can be removed.In general, wastewater treatment is clean inside the plant and no sludge accumulation occurs. There is no extra cost for it.

On the other hand, since the physical treatment is more than 60%, it is possible to operate without any additional environmental knowledge, and furthermore, the separated sludge can be utilized as a new and renewable energy source instead of an environmental pollution source.

Other effects of the present invention will be apparent to and understood by those skilled in the art through the following detailed description or in the course of carrying out the present invention.

1 is a perspective view schematically showing a wastewater treatment apparatus according to an embodiment of the present invention.

2 is a block diagram showing a wastewater treatment apparatus according to the embodiment of FIG.

Figure 3 is a block diagram showing the raw water input portion, PH regulator input portion and the mixing tank employed in the embodiment shown in FIG.

Figure 4 is a block diagram showing a first reactor employed in the embodiment shown in FIG.

5 is a block diagram showing an aggregation reaction unit employed in the embodiment shown in FIG.

Figure 6 is a block diagram showing a second reaction tank and the reaction separation tank employed in the embodiment shown in FIG.

7 is a configuration diagram showing a dewatering portion and a filtration portion employed in the embodiment shown in FIG.

8 is a flow chart showing the operation of the wastewater treatment apparatus according to the embodiment shown in FIG.

The above-described features and effects of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, and thus, those skilled in the art to which the present invention pertains may easily implement the technical idea of the present invention. Could be. As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific disclosure, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Hereinafter, a wastewater treatment apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the present specification, the same reference numerals are used to designate similar components in different embodiments, and the description thereof is replaced with the first description.

1 is a perspective view schematically showing a wastewater treatment apparatus according to an embodiment of the present invention, Figure 2 is a block diagram showing a wastewater treatment apparatus according to the embodiment of FIG.

Referring to the drawings, the wastewater treatment apparatus 100 according to the embodiment of the present invention includes a raw water input unit 1, a PH regulator input unit 2, a mixing tank 3, a first reaction tank 4, and a coagulation reaction unit ( 5), a second reaction tank 6, a reaction separation tank 7, a dehydration part 8, and a filtration part 9 are included.

The raw water input unit 1 divides the wastewater raw water to be treated into small amounts in a short time of, for example, one minute.

Meanwhile, the PH regulator input unit 2 inputs a PH regulator for controlling the PH concentration of the raw water fed from the raw water input unit 1.

The mixing tank 3 receives raw waste water from the raw water input unit 1 and receives a PH regulator from the PH regulator input unit 2 to mix the raw water with the PH regulator. At this time, the mixing tank (3) inside the PH sensor (37) is installed can be automatically detected even if there is a change in the raw water introduced from the outside to maintain the appropriate PH.

The first reaction tank 4 is connected to the lower part of the first reaction tank 4 to the upper part of the mixing tank 3, and the wastewater blended in the mixing tank 3 from the upper part of the mixing tank 3 from the first reaction tank 4. Flows into the bottom of the. Inflow of the wastewater is to go to the upper portion of the first reaction tank (4) to make the neutralization reaction of the wastewater and the PH regulator to make a state in which aggregation can occur. The wastewater blended with the PH regulator in the blending tank 3 is called blended water.

In the flocculation reaction section 5, the sludge contained in the reaction water in which the reaction occurred in the first reaction tank 4 is aggregated to make flocculation water. Coagulated water refers to wastewater containing sludge agglomerated by this process.

In the second reaction tank 6, the agglomeration water generated in the agglomeration reaction part 5 is introduced, and the reaction occurs in the process of transferring the agglomerated water through the plurality of

pipes

63 and 62. By this process, the sludge agglomerates further.

The reaction separation tank 7 is installed to be connected to the second reaction tank 6 and separated from the flocculated sludge by flotation.

The dewatering unit 8 is installed to be connected to the reaction separation tank 7 and dewatered sludge separated from the reaction separation tank 7 and then discharged to the outside and discharges the separated water separated in the dehydration process.

Here, the separated water refers to wastewater except sludge from the flocculated water or wastewater generated when the sludge is dewatered. On the other hand, in the present specification, the reaction water refers to wastewater in which various reactions have occurred, and may be understood as a concept of generically mixing water, aggregated water, and separation water.

The filtration unit 9 passes through the separation water separated from the dehydration unit 8 to the lower side and filters the remaining sludge to remove it.

As described above, the wastewater treatment apparatus according to the embodiment of the present invention is made by adding raw water in a small amount and moving upward from below to stir and react, and the sludge agglomeration process is carried out by dividing the agglomerated water through a plurality of pipes 63. . As a result, it is possible to shorten the treatment time of the wastewater and to reduce the odor generated by the sludge.

On the other hand, the sludge is low in water content and can be used for composting because it contains a lot of nutrients, and the reaction water can complete the treatment of wastewater by removing the remaining sludge by additional biological treatment.

Hereinafter, the structure of each part is demonstrated in detail with reference to drawings.

Figure 3 is a block diagram showing the raw water input unit, PH regulator input unit and the mixing tank employed in the embodiment shown in FIG.

The raw water input unit 1 is a portion for inputting wastewater raw water, and includes a raw water supply pump 11, various pipes 12 for moving raw water, a flow meter 13, a control valve 14, and a check valve 15. Include.

In the raw water input unit 1, the input of raw water is made to inject only the minimum amount in 1 minute increments by the control valve 14. In addition, the once-injected raw water causes the check valve 15 to block backflow.

This focuses on the fact that the removal efficiency is significantly lowered when a lot of raw water is simultaneously introduced into the mixing tank 3. The efficiency can be maximized by dividing the raw water into small amounts in small amounts of one minute.

Meanwhile, the PH regulator input unit 2 includes a PH regulator storage tank 21, a metering pump 22, and various pipes 23 for moving the PH regulator as a part for introducing a PH regulator.

Here, the PH regulator is installed inside the raw water inlet pipe 12 and the end of the PH regulator input pipe 23 is disposed near the point where the raw water is discharged so that the PH regulator is ejected from the outlet end of the raw water inlet pipe 12 Ensure that raw water and PH regulators are combined at the outlet.

Raw water reacts primarily with the PH regulator in a relatively narrow pipeline, so that the entire raw water can react individually and immediately with the PH regulator. This may improve the reaction rate compared to stirring by adding a PH regulator to the collected raw water.

The outlet is also located approximately 10 mm below the blade of the stirrer 31. As such, the outlet may be disposed at a position close to the blade of the stirrer 31 so that the reaction occurs instantaneously by vigorously stirring the raw water and the PH regulator at the central portion of the outlet.

Part of the PH regulator input pipe (23) is installed inside the raw water input pipe (12), and the PH regulator is placed at the point where the raw water is discharged, and the blade of the stirrer (31) is placed close to where the raw water and the PH regulator are injected. Stirring allows for optimal reactions.

The mixing tank 3 is a portion to be blended with raw water and PH regulator, agitator 31, mechanical seal 32, reaction aid tank 36, diaphragm 34, guide plate 35, electrode rod 33 and PH detecting sensor 37 is included.

FIG. 3 is a configuration diagram showing the mixing tank 3 employed in the embodiment shown in FIG. 1.

In the configuration of the mixing tank 3, the stirrer 31 is strongly stirred at about 350 rpm, and the mechanical seal 32 is mounted on the shaft of the stirrer 31 at the top to maintain the inside of the mixing tank 3 in a vacuum state. The reaction water and sludge are introduced from the upper part of the mixing tank 3 into the lower part of the first reaction tank 4 by using the pressure generated by the gas and the sludge reaction generated during the reaction.

The reaction auxiliary tank 36 is installed at the center lower portion of the mixing tank 3 to maximize the reaction by causing the reaction to occur in a small space, and use two compartments 34 to provide two compartments inside the mixing tank 3. First, separate the formulated water from which the compounding took place and the raw water added later.

On the other hand, the guide plate 35 is installed to induce the reacted sludge stagnation. The guide plate 35 is a curved shape and sludge is guided along the curved surface to move to the first reactor 4.

In addition, a plurality of electrode rods 33 are installed in the mixing tank 3 to supply DC electricity. The electrode rod 33 decomposes the sludge contained in the wastewater raw water. Accordingly, it is possible to promote the reaction and reduce the drug consumption.

The 1st reaction tank 4 is a part which moves while the compounding water mix | blended in the mixing tank 3 reacts, The stirrer 41, the mechanical seal 42, the diaphragm 44, the guide plate 45, the control valve 47 ).

4 is a configuration diagram showing a first reactor employed in the embodiment shown in FIG. 1.

The first reactor (4) is to give a reaction time in order for the blended water and sludge formulated in the mixing tank (3) to complete the reaction.

The first reactor 4 is configured to install a plurality of electrode rods 43 inside the first reactor 4, like the mixing tank 3, and to supply DC electricity to promote the reaction, and the diaphragm 44 inside the reactor. Using three compartments) to separate the first introduced compound water and the later introduced compound water to prevent mixing and install the guide plate 45 on the mixing tank (3) to induce the discharge of sludge.

The wastewater mixed in the mixing tank 3 flows into the lower portion of the first reaction tank 4 from the upper portion of the mixing tank 3 and rises upward.

The first reactor 4 is equipped with a low-speed stirrer 41 of about 20 rpm in order to induce an optimum reaction of the reaction water introduced from the mixing tank 3, and a three-stage diaphragm inside the first reactor 4 44) to separate the blended water introduced from the mixing tank (3) and the reaction water reacted.

In addition, the two outlets 46 are installed and divided into the agglomeration reaction part 5, but a control valve 47 is installed at the outlet 46 to stably divide and supply the reaction water flowing into the agglomeration reaction part 5. give.

On the other hand, by installing the PH sensor (37, 48) inside the mixing tank (3) and the first reaction tank (4) it can automatically maintain the constant PH by detecting the change in the water quality introduced from the outside. As a method of maintaining a proper pH, a method of adjusting the amount of PH regulator or adding caustic soda may be used.

The agglomeration reaction unit 5 receives the reaction water from the first reaction tank 4, administers a coagulant to agglomerate the sludge, and discharges the coagulated water including the agglomerated sludge. Group 52 and

control valves

53 and 54.

5 is a block diagram showing the aggregation reaction unit 5 employed in the embodiment shown in FIG.

In the coagulation reaction section 5, two agglomeration reaction tanks 51 are provided so that the control valve 47 operates alternately, and the reaction water is introduced into each coagulation reaction tank 51 alternately to give a reaction time.

The polymer dissolution solution, which is a flocculant, is alternately supplied from the polymer autodissolver 52 to the flocculation reaction tank 51 through the control valve 53 to induce flocculation.

The agglomerated sludge and the reaction water are discharged to the sub tank 61 at the lower side while the two control valves 54 are operated alternately.

Referring to FIG. 6, the auxiliary tank 61 collects and mixes agglomerated sludge and reaction water discharged from the agglomeration reaction tank 51. The auxiliary tank 61 has an inlet facing the agglomeration reaction tank 51 wide and a middle portion through which the sludge and the reaction water pass is narrowed and widened again at a portion connected to the second reaction tank 6.

By such a configuration, the pressing force for pushing the sludge and the reaction water can be increased, and the sludge and the reaction water are introduced into the second reaction tank 6 from the auxiliary tank 61.

FIG. 6 is a diagram illustrating a second reaction tank and a reaction separation tank employed in the embodiment shown in FIG. 1.

The second reaction tank 6 receives sludge and the reaction water aggregated from the coagulation tank to treat the sludge and discharges the treated sludge and the reaction water, and the bubble generator 62, the pipe 63, and the electrode rod 64 are separated from each other. Include.

A bubble generator is installed in the lower portion of the second reaction tank 6 to generate fine bubbles, thereby inducing flocculation of the aggregated sludge from the flocculation tank so as to stably float.

On the other hand, when processing a large amount at the same time, a plurality of pipes (63) by installing a plurality of pipes in relation to the efficiency is separated to maximize the efficiency of separation. Accordingly, the introduced flocculation water and sludge pass through several pipes 63 to allow the optimum reaction to occur.

Meanwhile, a plurality of electrode bars 64 are installed inside the pipe 63 to supply DC electricity to decompose sludge by electrolysis to reduce sludge generation and to remove or reduce chromaticity of wastewater by electrolysis.

The reaction separation tank 7 is a part that receives the coagulated water from the second reaction tank 6 and separates the coagulated sludge and the separated water and discharges the coagulated sludge and the separated water.

The reaction reactor (7) is installed on the outlet side of the second reaction tank (6) to install and discharge the sludge flocculated flotation to induce sludge discharge, thereby inducing the discharge naturally without applying a physical force. .

In the reaction separation tank 7, the sludge is floated and separated from the coagulated water. Sludge and separation water separated in the reaction separation tank (7) is discharged to the dehydration unit (8) through the outlet.

FIG. 7 is a diagram illustrating a dehydration unit and a filtration unit employed in the embodiment illustrated in FIG. 1.

The dewatering part 8 is a part for discharging the separated water discharged from the reaction separation tank 7 to the bottom and dewatering the separated sludge, and it is preferable to configure the slit saver dehydrator 81.

The dewatering unit 8 is equipped with a slit saver dehydrator 81, and the separated water is naturally discharged to the lower side, and the sludge dewatered to 65% or less of moisture content so that the sludge may be used as a new and renewable energy fuel in the future.

As a result, the sludge separated from the separation tank and the separated water are naturally discharged to the lower portion without applying physical force and the separated sludge is neatly dewatered and discharged to the outside.

The filtration unit 9 includes a first filtration tank 91 and a second filtration tank 92 as a part for removing the fine sludge contained in the separated water separated from the dehydrator to discharge the filtered water.

The first filtration tank 91 removes fine sludge by separating the discharged water discharged from the dehydrator and having a nonwoven fabric 93 mounted therein. The first filtration tank 91 is fitted with a nonwoven fabric 93 in three steps to remove fine sludge.

The second filtration tank 92 is introduced into the separation water passed through the first filtration tank 91 and equipped with a zeolite filter to reduce the chromaticity of the separation water.

By this process, when the separated water is introduced into the primary settling cell, which is a biological treatment process after passing through the filtration unit 9, sludge 98.5% BOD., COD, TN, TP, etc. are removed by 85% or more.

The wastewater treatment apparatus 100 configured as described above can efficiently treat livestock wastewater, aquatic product processing wastewater, palm oil processing wastewater, and concentrated sludge of sewage.

Livestock wastewater and palm oil processing wastewater are high concentration wastewater, and there is a limit to microbial treatment in biological treatment. Therefore, the wastewater treatment apparatus 100 removes sludge by more than 98.5% by physical method to decompose sludge in biological process. By shortening the time and eliminating odors due to sludge decay in advance, the processing time can be shortened and the source of odors can be blocked.

Low concentration wastewater, such as aquatic wastewater, sewage and wastewater treatment, can remove 100% of activated sludge and eliminate 100% of activated sludge as well as sludge accumulation in the entire system, thereby eliminating the system load due to sludge accumulation.

Furthermore, it is possible to minimize the sludge drying cost generated to fuel sludge by lowering the sludge dewatering moisture content to 60% or less, and to use it as a renewable energy.

Next, the operation of the wastewater treatment apparatus according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

8 is a flow chart showing the operation of the wastewater treatment apparatus according to an embodiment of the present invention.

First, raw water is supplied (S1). Raw water is wastewater to be treated, such as livestock wastewater, palm oil processing wastewater, aquatic product processing wastewater and sewage.

Next, supply a PH regulator to react with raw water (S2). Ferric chloride may be used, such as ferric chloride, and the PH regulator is added to the input pipe 12 of the raw water, but the raw water is injected into the input pipe at the point where the discharged from the mixing tank (3) to react.

Next, the raw water and the PH regulator are stirred (S3). The blade of the stirrer 31 is positioned near the input pipe 12 of the raw water, and when the raw water into which the PH regulator is discharged is rotated, it is stirred vigorously.

Next, when the raw water and the PH regulator is added again, the compartment of the reaction water is separated (S4). When the raw water into which the PH control agent is discharged again from the input pipe 12 of the raw water is discharged, the stirred reaction water is pushed up. At this time, since the pre-reaction water and the post-reaction water are separated by the diaphragm 34, the reaction occurs independently. The mixed raw water and the PH regulator undergo a reaction (first reaction).

Next, the first reaction proceeds (S5). The first reaction proceeds in the first reactor (4), which is a kind of neutralization reaction as the raw water and the PH regulator react with each other. Since the inlet of the first reactor 4 is formed at the bottom and the outlet 46 is formed at the top, the reaction proceeds while the reaction water moves from the bottom of the first reactor 4 to the top.

Next, a coagulant is administered to the reaction water that has completed the first reaction to react (second reaction) (S6). This process aggregates the sludge contained in the reaction water. The flocculation reaction can be carried out in a plurality of flocculation tanks. The reaction time can be shortened by performing the reaction in each of the plurality of flocculation tanks.

Next, the second reaction proceeds (S7). The progress of the second reaction takes place in the second reactor (6), where the reaction water and the coagulant that reacted with the first reaction react to produce aggregated sludge and separated water. In addition, while the reaction water is moved through the plurality of pipes 63 of the second reactor 6, the sludge is reduced and the chromaticity is reduced.

Next, the separation water is discharged together with the flocculated flotation sludge in the reaction separation tank (S8).

Next, the sludge is dehydrated (S9). The sludge having passed through the slit saver dehydrator 81 drops to 65% or less of water content, and the separated water generated at this time is moved to the filtration unit 9.

Next, the fine sludge is filtered and discharged (S10). Separation water discharged through the dehydrator from the separation tank is filtered through the first filtration tank (91) and the color is lowered while passing through the second filtration tank (92).

On the other hand, the reaction in the mixing tank (3) and the first reaction tank (4) and the flocculation tank can be made in a vacuum state in which the air flowing into the interior is blocked, thereby improving the reactivity and mobility of the reaction water and sludge.

In addition, it is possible to induce sludge to be well discharged by the

induction plates

35, 45, and 71 during the progress of each reaction, and the generation of sludge can be further reduced by supplying DC electricity by the

electrodes

33, 43, and 64. .

The following table is a table comparing the performance of the wastewater treatment apparatus 100 and the conventional wastewater treatment apparatus 100 according to an embodiment of the present invention.

	실시예Example	비교예Comparative example
용량Volume	100ton/day100ton / day	100ton/day100ton / day
전처리 슬러지 제거율Pretreatment Sludge Removal Rate	(전처리) 98%(Pretreatment) 98%	미생물분해Microbial degradation
슬러지함수율Sludge Function Rate	68%68%	83%83%
오염원제거율Pollution removal rate	85%85%	생물학처리Biological treatment
냄새smell	없음none	악취발생Odor Occurrence
처리시간Processing time	13일~15일13-15 days	40일~45일40 days-45 days
처리장면적Treatment area	850㎡850㎡	6700㎡6700㎡

As can be seen from the above table, in the wastewater treatment plant according to an embodiment of the present invention, sludge is removed by physical method in pretreatment to minimize the load in biological treatment and to remove dissolved sludge in wastewater.

In addition, by removing the sludge from the pretreatment in a physical way, it can be operated even without specialized environmental knowledge, and the machine operation can be operated without any separate management by the automatic operation system. It can be configured as a monitoring system that can be checked by using the system to automatically notify the mobile phone or management center in case of abnormality.

In the detailed description of the present invention described above with reference to a preferred embodiment of the present invention, those skilled in the art or those skilled in the art having ordinary knowledge in the scope of the invention described in the claims to be described later It will be understood that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

Claims

Raw water input unit for dividing waste water into small quantities,

PH regulator input unit for inputting a PH regulator for controlling the PH concentration of the raw water fed from the raw water input unit,

A mixing tank for supplying wastewater raw water from the raw water input unit and receiving a PH control agent from the PH regulator input unit to mix the wastewater raw water and the PH regulator to form a blended water,

A lower portion is connected to an upper portion of the mixing tank, and the mixing water is A first reaction tank flowing from the upper part of the mixing tank and moving from the lower part to the upper part as a reaction occurs,

Aggregation reaction unit to aggregate the sludge contained in the reaction water in which the reaction occurred in the first reaction tank to make the reaction water agglomerated water,

A second reaction tank configured to move the inside of the pipes while the agglomerated water made by the agglomeration reaction unit is introduced and includes a plurality of pipes so that the agglomerated water is separated from each other and agglomeration occurs

A reaction separation tank connected to the second reaction tank and floating by separating the sludge agglomerated from the agglomerated water,

A dehydration part connected to the reaction separation tank and dewatering the sludge separated from the reaction separation tank and then discharged to the outside and discharging the separated water separated in the dehydration process;

Filtration part that passes through the separated water separated in the dewatering portion and removes the remaining sludge contained in the separated water

Wastewater treatment apparatus comprising a.
The method of claim 1,

The blending tank is

Stirrer to induce a reaction by mixing the raw water and the PH regulator,

A mechanical seal mounted on a shaft of the stirrer to maintain the inside of the mixing tank in a vacuum state,

A plurality of electrode rods are installed inside the mixing tank and generate electric force to decompose sludge contained in the wastewater raw water,

A partition plate installed inside the mixing tank and separating the wastewater raw water that has been introduced and blended first and the wastewater raw water which is introduced and blended later;

Induction plate installed in the upper part of the mixing tank to induce the discharge of sludge contained in the raw water

Wastewater treatment apparatus comprising a.
The method of claim 1,

Waste water treatment apparatus characterized in that the end of the PH regulator input pipe from which the PH regulator is discharged disposed inside the raw water input pipe discharged from the raw water.
The method of claim 1,

The first reaction tank,

Stirrer to induce the reaction by stirring the blended water added to the first reaction tank,

An electrode rod having a plurality installed in the first reactor and generating electric force to decompose sludge contained in the wastewater raw water;

A plurality of plates installed inside the first reaction tank and separating the reaction water introduced and reacted from the mixing tank first and the reaction water introduced and reacted later,

A discharge port for dividing the reaction water into the agglomeration reaction part;

A control valve installed at the outlet and stably dividing the reaction water flowing into the agglomeration reaction part

Wastewater treatment apparatus comprising a.
The method of claim 1,

The aggregation reaction unit,

A plurality of agglomeration tanks are installed, and the reaction water is introduced from the first reaction tank, and alternately introduced into each of the agglomeration tanks, and a coagulant is administered to the agglomeration tank, followed by agglomerated sludge and separation water produced by the reaction of the reaction water and the agglomerator. Waste water treatment apparatus, characterized in that for discharging.
The method of claim 1,

The second reaction tank,

Under the second reactor Being installed Bubble generator that generates bubbles so that sludge does not settle out and stably floats,

Pipes are installed in which a plurality are installed and the inflow of agglomerated water is divided into a plurality of paths to allow the agglomeration reaction to occur.

A plurality of electrode rods are installed inside the pipe and generate electric force to decompose sludge contained in the wastewater.

Wastewater treatment apparatus comprising a.