KR101581241B1

KR101581241B1 - Apparatus for treating rainwater and overflow water of confluent water drainage

Info

Publication number: KR101581241B1
Application number: KR1020150098155A
Authority: KR
Inventors: 최성필; 최경인
Original assignee: 최성필; 최경인
Priority date: 2015-07-10
Filing date: 2015-07-10
Publication date: 2015-12-31

Abstract

The present invention relates to an apparatus for high-speed processing of sewage water using a foamed artificial floating material having natural eco-friendliness and resource recyclability.
Accordingly, the technical point of the present invention is to rapidly improve pollutants in sewage water generated during rainfall to improve the quality of water rapidly. This is because the two-stage compartment (rapid reaction tank and slow reaction tank) type flocculation tank (Flocculation or coagulation) of contaminants such as various organic matters, suspended matters, coliform bacteria, etc. in the overflow water is highly concentrated. In the filtration tank which is a downstream process, an (LCD) glass or a waste glass bottle And the recycled multistage multi-layered artificial floating material is formed so as to be enclosed in the compartments, so that the overflow water flowing from the flocculation tank through the overflow water conveying pipe rises in the upward flow manner, and the artificial floating filter material is filtered at a high speed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a high-speed processing apparatus for sewage effluent using foaming artificial floating media having natural eco-friendliness and resource recyclability,

The present invention provides a method for rapidly improving the quality of water by treating contaminants in the sewage water generated during rainfall at a high speed by using a two stage compartment (rapid reaction tank and slow reaction tank) flocculation tank having an agitation facility, (Flocculation or condensation) of contaminants such as various kinds of organic substances, suspended matters, coliforms, etc. in a filtration tank which is a post-production process. In the filtration tank, a (waste) LCD glass or a waste glass bottle, Wherein the flood water flowing from the flocculation tank through the overflow water conveying pipe is raised in an upward flow manner so that the artificial floating filter material is filtered at a high speed so as to be filtered at a high speed. Of High Speed Sewage Water Treatment System Using Foamed Artificial Floating Material will be.

In other words, the present invention can be applied to a method of treating rainfall water (high concentration of pollutants contained in roads, industrial areas, commercial areas and residential areas combined sewerage) So that the sewage water exceeding the treatment capacity of the sewage treatment plant can be treated at a high speed.

The pollutants affecting the water system are divided into point-source and non-point source.

In this case, the point source is a pollutant source such as domestic sewage or factory wastewater which can be expressed as a single point, and the pollutant movement path is clear and easy to process.

In addition, the nonpoint source is a pollution source that pollutants on the ground surface are washed away by rainwater during rainfall, and the pollution source is very difficult to treat due to the concentration of the outflow amount during rainfall.

Thus, in the case of non-point-pollution sources, pollution sources are distributed in a wide area, and various pollutants on the impervious surface are washed in the first-flush at the beginning of rainfall, And the width of the fluctuation of the flow rate with time is formed to have a very large characteristic.

In this case, in case of urban area or industrial complex, the possibility of containing toxic substances such as heavy metals is high, and a different approach from the conventional water treatment method is needed.

As a method of treating pollutants in the early stage, storage type, permeability, vegetation type, device type, and the like have been proposed.

At this time, the reservoir type removes the particulate pollutants by sedimentation, and the permeable type increases the underground penetration ability, thereby reducing the storm drainage and utilizing the underground soil as a filter.

As vegetation type, there are mainly vegetation channel and vegetation filtration as a pretreatment method, and the device type is installed in a pipeline, and it is applied to an urban area where rainwater flows out through pipelines. And can be classified into a vortex type, a sedimentation type, a filtration type, and the like.

Therefore, the apparatus type is predominantly composed of a vortex type method in which a vortex is formed by using a centrifugal force to precipitate a suspended substance, and a cartridge type filter filtration type method.

At this time, the conventional vortex type has a disadvantage in that the particulate matter is not easily removed when the vortex is not sufficiently generated, and the removal efficiency thereof is rapidly lowered.

In addition, since the vortex-type facility deposits particulate matter by the centrifugal force generated by the vortex, it is difficult to sufficiently remove the contaminant due to the limitation that the particulate matter can not be sufficiently removed.

And the vortex type facility is a facility that has a limit to remove the micro pollutant which occupies most of the particulate matter.

Accordingly, since the filtration type facility is difficult to precipitate rapidly like a vortex type facility, it has disadvantages that the required capacity and the required site of the apparatus are large and the filtration type is the surface filtration type, so that it can be easily clogged.

In other words, the rainfall runoff (overflow water) exceeding the normal treatment capacity (Q) of the sewage or sewage treatment plant contains a high concentration of pollutants accumulated in the sewage pipe and is discharged to the discharge water system without being appropriately treated in the mixed state with sewage There is a possibility of destroying the river ecosystem such as the Tanchon fish dwelling in August 2004 and the Nakdong River, Geumgang, Youngsan River, etc., which are closed waters where the discharge water is the estuary, have eutrophication and red tide, In the long term, it will have a negative impact on water resources management because it is difficult to adhere to the allowable outflow pollutant load of the total water quality system being implemented.

On the other hand, the sewage overflow is equivalent to about 3% to 6% of the sewage inflow in Cheongcheon, and the sewage overflow water load (Camp, 1963), which accounts for about 30% As shown in the following Table 1, at the early stage of rainfall, high concentrations of up to 30 times of the sewage concentration occurred in the river are discharged to the river by the water quality item.

Sewage water pollution concentration in urban area

1. EMC (Event Mean Concentration): Flow weighted average concentration

2. Study on the Basin Survey on the Outflow Pollution Load of Excellent Pipeline in the Sewer System of the Combined Sewer System in the Urban Area (2004. Environmental Management Corporation)

In order to deal with this, the Ministry of Environment revised the sewerage law in 2014, introduced the simplified public treatment facility system in Korea for the first time, and prepared the legal standard to treat the sewage water.

Water quality standard of effluent water of simple public sewage treatment facility

1. The water quality standard for sewage effluent shall apply only to the simplified public sewage treatment facility installed to treat the sewage that temporarily flows into the public sewage treatment facility having a sewage treatment capacity of 500㎥ or more per day.

2. The Minister of the Environment may set a relaxed standard for public sewage treatment facilities newly installed during the period from July 17, 2014 to December 31, 2018, rather than the quality standard of effluent water.

In other words, the water quality standard of the effluent water of the treatment facility is the waterside area of the water management area of the 4 rivers such as the water conservation area, the water quality protection special area, the Han river water, etc. and the Saemangeum business area. (BOD) of less than 60mg / L for the first time since July 17, 2014, and the biochemical oxygen demand (BOD) is gradually increased to less than 40mg / L from January 1, And the treatment standard for coliform bacteria was also applied.

According to the "Sewerage Facilities Standard (2005, Ministry of Environment)" as a treatment method for the reduction of sewage water pollutants in the past, the second treatment facility was constructed and processed in 1Q for appropriate treatment of sewage introduced during rainfall, Excess sewage is discharged after the simple sedimentation at the primary settlement site of the sewage treatment plant. In some sewage treatment plants, there is a problem in the water quality management during rainfall due to the untreated sewage water discharge through the emergency inflow prevention device installed at the inlet of the inlet And it is urgent to develop and apply excellent treatment technology that can comply with water quality standard of effluent water of public public treatment facility.

In this connection, the patent document 10-2009-0071017 discloses an overflow water treatment apparatus for treating pollutants contained in the overflow of the combined sewerage, comprising: an inflow section for introducing the overflow exceeding the subsequent treatment capacity of the sewage treatment process; A lower water treatment section provided at a lower portion of the treatment tank and having a sedimentation filter medium for filtering coarse contaminants in the flowing water flowing into the treatment tank; An upper water treatment unit provided at an upper portion of the water treatment unit and having a floating filter medium for filtering fine contaminants; a discharge unit for discharging the overflow water filtered through the upper water treatment unit; and an inverter for washing the lower water treatment unit and the upper water treatment unit And the like.

However, in the above-mentioned prior art, the filter material layer has two stages of the upper water treatment portion and the lower water treatment portion to complicate the device, and the backwashing speed becomes slow due to the two-stage water treatment portion, The cleaned contaminants are likely to pass completely through the lower water treatment section, so that there is a problem that the contaminants accumulate between the upper water treatment section and the lower water treatment section, and the inflow pipe is directly introduced from the lower part of the treatment tank, The sediment in the lower part of the treatment tank is easily swept away by the flow of influent water.

1. Patent Registration No. 10-1288471 (Registered on July 16, 2013) 2. Patent Registration No. 10-1231458 (Registered on February 21, 2013)

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a method for rapidly improving the quality of water by treating contaminants in sewage water generated during rainfall at high speed, (Rapid reaction tank and slow reaction tank) type flocculation tank is formed to highly concentrate floc (flocculation or coagulation) of contaminants such as various organic matter, suspended matters and coliform bacteria in the overflow water. In the filtration tank, LCD glass or waste glass bottle, etc., is formed so that the recycled multi-layer multi-layered artificial floating material is formed as a compartment, so that the overflow water flowing from the flocculation tank through the overflow water transfer pipe rises in an upward flow manner, Wherein the foamed material has a natural eco-friendliness and resource recyclability. And an object of the present invention is to provide an apparatus for high-speed processing of sewage water using a studying filter medium.

In other words, the present invention can be applied to a method of treating rainfall water (high concentration of pollutants contained in roads, industrial areas, commercial areas and residential areas combined sewerage) The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a sewage treatment system capable of quickly performing flocculation and filtration on sewage water discharged in a nearby river without any treatment.

In addition, the present invention is to develop a technology capable of complying with the water quality standards of effluent water of a public public treatment facility set forth in the Enforcement Regulations of the Sewerage Act enacted on July 17, 2014, Considering the physical properties of sediments with high specific gravity, the suspended particulate matter has a higher specific gravity than the existing sewage, and adopts an upflow type filtration method considering the collision and sedimentation mechanism between the multi-layer filter media filled with the filter media and the filter inlet particles. have.

(Lung) LCD glass is used as an artificial floating filter material. This is because the floating glass material layer is packed in the filtration tank, and the filtration is performed by using a straining process, a impaction and a sedimentation mechanism center Removal of solids and solids trapped in the filter medium removes contaminants from the air supplied from the bottom and transfers them to the drainage tank through the sludge drawer at the bottom. The process is then concentrated and dehydrated through the sludge tank in the existing process. And an ion disinfection facility capable of appropriately treating a coliform group contained in a large amount in a simple and high-speed operation.

In addition, the (lung) LCD glass artificial floating filter material of the present invention plays a key role in sewage water treatment, and it produces artificial floating filter media by using waste LCD panel generated from disposal of LCD household appliances as a raw material, Thereby improving the strength and durability of the floating filter media and contributing to the conservation of limited resources by recycling waste resources.

In order to achieve the above object, the high-speed processing apparatus of the present invention is provided with a tank body 110 having an inlet pipe 111 and a drain pipe 112 so as to form floc (flocculation or coagulation) A drug supply unit 120 and a stirrer 130 are formed on one side and the other side of the tank main body 110 so that the introduced medicines smoothly mix with the overflow of the impeller 131 of the stirrer; An embankment tank 210 is formed so as to perform a substantially filtration process on the chemical-treated overflow, and an artificial floating material 220 is formed inside the enclosure tank 210 on the basis of the divided space, A filtration tank 200 for forming a sludge settling portion 230 having a discharge hole 231 and a sludge discharge pipe 232 so that the solid-liquid separated sludge is deposited and discharged therefrom; The drainage pipe 112 and the upper inlet end 310 of the flocculation reaction tank 100 are connected to each other so that the lower porous outlet end 320 enters the upper part of the filtration tank 200 and passes through the artificial floating filter material 220 A drainage pipe (300) for allowing an upward flow type filtration process to be performed by being located inside the lower portion of the back casing tank (210); A backwashing device 400 for initializing or recovering the filtration speed and the function by removing contaminants adsorbed on the outer circumferential surface of the filtering material by spraying high pressure air or washing water to the artificial floating material 220 stacked in the filtration tank 200, Wow; A disinfection device 520 is formed on the line of the discharge pipe 510 so that the discharge pipe 510 is connected to the discharge water pipe A disinfection treatment water tank (500) formed to sterilize the coliform group or return the coliform group to the backwash water; .

At this time, the flocculation reaction tank 100 is divided into two zones by an internal partition wall 140, and a lower part of the partition wall 140 is partially separated from the inner bottom surface of the tank body 110, And the flocculant containing the PAC chemicals is rapidly mixed with the reactive material and the colloidal material contained in the sewage water to form a small floc. A rapid reaction tank (Z-1); The micro-condensation particles of small flocs are caused to collide with the drainage-side reaction tank zone transferred from the rapid reaction tank through the flow path 150, and the crosslinked auxiliary coagulant containing polymer is mixed with a large floc A slow reaction tank (Z-2); .

In addition, the filtration tank 200 prevents the artificial floating material 220 from being lost to the upper portion due to the water pressure of the overflow water, and is provided with a barrier material and a weir to uniformly control the outflow flow rate of the overflow water. (240); A lower material support 250 in which the artificial floating material 220 forms a barrier in the enclosure tank 210 and a blocking film is formed so as to prevent the lowering or dropping of the artificial floating material 220 to the lower part when it is filled (filled); .

At this time, the overflow water conveyance pipe 300 is configured to pierce a hole having a diameter of 3 mm to 30 mm on a part of the outer circumferential surface to drain the overflow water into the filtration layer.

The artificial floating material 220 is a mixture of glass and / or waste LCD glass in powder form and foamed and fired at a high temperature. The artificial floating material 220 has a particle size of 5 mm to 70 mm and a density of 0.3 g / cm 3 to 0.7 g / Cm3, a density in water saturation of 0.9 g / cm3 to 1.2 g / cm3, a porosity of 65% to 85% and a compressive strength of 10 kg / cm2 to 30 kg / cm2.

In this case, the flocculation reaction tank 100 is provided with a sensing sensor 160 for detecting the level of water on one side, and when the height of the water level due to an increase in the amount of contaminants in the filtration tank 200 is detected to be a set value or more, And the backwashing device 400 is operated to clean the artificial floating material 220.

In addition, the backwashing device 400 is formed such that a high pressure air is injected into the blower by forming a diffuser pipe on the artificial floating material 220.

The disinfection treatment water tank 500 is further provided with a pump 530 at one side thereof, and a backwash supply device 540 is further provided to reverse-spray disinfection water to the filtration tank during backwashing.

In addition, the disinfection device 520 may be configured to allow cations to be released to the cathode, which is copper or an alloy of copper and silver, and the cations are attached to the negative charge region of the bacterial cell wall to destroy the cell membrane, An ion release pipe (521) for preventing or proliferating the filtrate to allow ionized sterilization to the filtrate; A control unit (522) for controlling the amount of emitted ions of the electrode by the voltage output proportional to the fluctuation of the flow rate of the filtered overflow; .

As described above, the present invention provides a two-stage compartment (rapid reaction tank and slow reaction tank) type flocculation tank having agitation facilities, which can prevent floc (flocculation or condensation) of contaminants such as various organic matter, suspended matters, coliform bacteria, And a recycling multi-stage multi-layered artificial floating filter medium is formed in the filtration tank, which is a second step process, to contain recycled LCD glass or waste glass bottle, etc., so that the overflow water flowing from the flocculation tank through the overflow water conveying pipe So that the artificial floating filter material can be filtered at a high speed.

In other words, the present invention can be applied to a method of treating rainfall water (high concentration of pollutants contained in roads, industrial areas, commercial areas and residential areas combined sewerage) So that the sewage water exceeding the treatment capacity of the sewage treatment plant at the time of rainfall can be treated at a high speed.

In addition, the present invention is to develop a technology capable of complying with the water quality standards of effluent water of a public public treatment facility set forth in the Enforcement Regulations of the Sewerage Act enacted on July 17, 2014, Considering the good physical properties of sediment with high specific gravity, the float has the effect of inducing the collision and sedimentation mechanism between the multi - layered filter media and the filter inlet particles.

(Lung) LCD glass is used as an artificial floating filter material. This is because the floating glass material layer is packed in the filtration tank, and the filtration is performed by using a straining process, a impaction and a sedimentation mechanism center Removal of solids and solids trapped in the filter medium removes contaminants from the air supplied from the bottom and transfers them to the drainage tank through the sludge drawer at the bottom. The process is then concentrated and dehydrated through the sludge tank in the existing process. An ion disinfection facility capable of appropriately treating E. coli contained in a large amount can be employed.

In addition, the (lung) LCD glass artificial floating filter material of the present invention plays a key role in sewage water treatment, and it produces artificial floating filter media by using waste LCD panel generated from disposal of LCD household appliances as a raw material, It is possible to improve the strength and durability of floating filter media and to contribute to preserving limited resources by recycling waste resources.

That is, according to the present invention, since the sewage treatment plant is constructed and operated by investing huge amount of money to the sewage treatment plant, the sewage treatment rate of the sewage treatment plant reaches to the advanced country level The problem of water pollution caused by sewage is greatly improved.

However, due to the inadequate disposal facilities, the high concentration sewage water generated from the combined sewer pipe at the time of rainfall destroys the aquatic ecosystem such as the water pollution caused by the discharged water area and the fish stubble and causes the cause of the waterborne infectious disease due to the pathogenic Escherichia coli As a part of measures to properly cope with the urgent reality of the waterfront environment in the waterfront area, which is a waterfront area of urban residents, and the national water quality system, The sewage related laws have been amended to introduce a simplified public treatment facility system.

Accordingly, the present invention contributes to provide economical and superior technology by using environment-friendly materials in the simplified public sewage treatment facility introduced for proper treatment of the sewage overflow generated during rainfall, It has the effect of contributing to the improvement of the water quality of rivers and lakes, which is a water area downstream of the sewage treatment plant.

FIG. 1 is a diagram illustrating an example of a high-throughput water treatment apparatus according to the present invention.
2 to 3 are side views of the flocculation tank according to the present invention,
4 is a side view of a filtration tank according to the present invention,
5 is an exemplary view showing a disinfection apparatus according to the present invention,
FIG. 6 is a process chart of the high-throughput water treatment apparatus according to the present invention,
FIG. 7 is a photograph showing an example of a case in which a high-throughput water treatment apparatus according to the present invention is applied,
8 is an illustration of an artificial floating material according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings.

First, as shown in FIG. 1 to FIG. 8, the high-speed processing apparatus of the present invention is largely composed of an aggregation reaction tank and a filtration tank.

The flocculation reaction tank 100 is provided with a tank body 110 having an inlet pipe 111 and a drain pipe 112 so as to form floc (flocculation or coagulation) The medicament supply unit 120 and the agitator 130 are formed at one side and the other side of the agitator 110 so that the injected medicament is formed to mix the impeller 131 of the agitator smoothly with the overflow water.

In this case, the flocculation reaction tank 100 is provided with a sensing sensor 160 for detecting the level of water on one side, and when the height of the water level due to an increase in the amount of contaminants in the filtration tank 200 is detected to be a set value or more, And the backwashing device 400, which will be described later, is operated to clean the artificial floating material 220.

In other words, in the flocculation tank, the swirling water and the inorganic flocculant are rapidly mixed by using a rapid stirrer, and a rapid reaction tank for forming micro flocs and an auxiliary coagulant such as polymer are injected and mixed slowly using a stirrer to obtain floc ).

At this time, in the case of a small scale processing facility, the rapid reaction tank preferably has a function of rapidly mixing an inline mixer when necessary.

In addition, the medicine supply unit may include a facility for automatically inputting the medicine by the medicine pump after determining the amount of the flocculant and the auxiliary coagulant to be supplied in a proportional control manner according to the inflow amount of the overflow water and the inflow water quality concentration.

It is also possible to provide a mixing facility in which the auxiliary coagulant stock solution can be mixed with water at a certain ratio to form a polymer with an appropriate injection concentration.

It is preferable that such a chemical tank is formed so as to be able to store a quantity of medicine which can be used for about one month for each medicine.

The filtration tank 200 is provided with an artificial floating material 220 on the basis of a space defined inside the enclosure tank 210 so that the filtration tank 210 is formed so as to perform filtration treatment on the chemical- And a sludge settling portion 230 having a discharge hole 231 and a sludge discharge pipe 232 is formed in the lower portion of the container tank 210 so that the solid-liquid separated sludge is deposited and discharged.

At this time, the sludge settling portion is settled in the lower portion of the filtration tank by solid-liquid separation by the solid-liquid separation method, and then discharged to the outside at regular intervals using a pump during the filtration treatment, and a large amount of backwash water And a discharging device is provided so as to be discharged to the outside at a time.

At this time, the disinfection treatment water tank is connected to the rear end of the pipe through which the overflow water passes through the filter material through the overflow water pipe through the overflow water conveyance pipe, and the disinfection treatment device is formed on the pipe line, As shown in FIG.

At this time, the filtration tank 200 prevents the artificial floating filter material 220 from being leaked to the upper part due to the water pressure of the overflow water, and is provided with a barrier material and a weir to uniformly control the outflow flow rate of the overflow water. (240); A lower material support 250 in which the artificial floating material 220 forms a barrier in the enclosure tank 210 and a blocking film is formed so as to prevent the lowering or dropping of the artificial floating material 220 to the lower part when it is filled (filled); .

That is, in the process of filtering the overflow water in the filtration tank, the CD artificial floatation material is lost to the upper part of the filtration tank due to the hydraulic pressure of the overflow water or the overflow water supplied in the filtration and backwashing process A screen is provided with a screen or the like so as to prevent the water from flowing out, and a stable water quality is ensured by controlling the outlet flow rate evenly.

In addition, when the LCD artificial floating material filled in the filtration tank is used for a long time, the float can be partially adsorbed on the filter material because the weight of the LCD artificial floating material becomes heavy due to adhesion of flocs and sinks There is a risk of being lost to the bottom of the filtration tank.

Therefore, a screen or a strainer is provided in the lower portion of the filter material to prevent the problem, thereby improving the above-mentioned problem.

The artificial floating material 220 is a mixture of glass and / or waste LCD glass in powder form and is foamed and fired at a high temperature, and has a particle size of 5 mm to 70 mm and a density of 0.3 g / cm 3 to 0.7 g / Cm3, a density in water saturation of 0.9 g / cm3 to 1.2 g / cm3, a porosity of 65% to 85% and a compressive strength of 10 kg / cm2 to 30 kg / cm2.

At this time, the artificial floating filter material is obtained by firing and firing the glass powder at a high temperature, so that it is possible to remarkably increase the filtration speed because the pores are abundant and the surface area is very wide.

That is, since the artificial floating filter material using the LCD glass can be filtrated in a state where it is floated in the filtration tank, it is possible to improve the economical efficiency by reducing the facility area by increasing the filtration speed, And the like.

The drainage pipe 112 and the upper inlet port 310 of the flocculation tank 300 are connected to each other through the upper part of the filtration tank 200, So that the filtration process is performed in an upflow type by allowing the water to pass through the artificial floating material 220 and then being positioned inside the lower portion of the armature tank 210.

In other words, the perforated type overflow conveying pipe has a plurality of holes per predetermined interval, so that if the overflow is introduced into the filtration tank, it can be discharged to the LCD artificial floating material layer through the plurality of holes, Can be increased.

Also, it is preferable that the porous distribution end of the porous percolating water transfer pipe is formed in a cross shape at the lower end portion, that is, in the vicinity of the lower portion of the filtration tank, and is formed to be fixed to the sidewall of the filtration tank to prevent the separation by water pressure.

Thus, the bottom fixed type overflow conveying pipe is formed to minimize the turbulent flow when the overflow water enters the filtration tank through the pipe.

In addition, soil or flocs mixed in the overflow water are discharged through the perforations to induce rapid sedimentation, while sediments settling in the sedimentation part of the filtration tank are formed so as to be prevented from sweeping up.

In addition, the overflow water conveyance pipe is formed so as to prevent the backflow and the opening and closing of the vacuum cleaner.

That is, the overflow water conveying pipe of the present invention is formed such that the overflow water is passed through the holes of the perforated outer peripheral surface and partly flows into the LCD artificial floating material layer to be filtered, and the remaining part is conveyed to the lower part of the filtration tank, So as to minimize sedimentation effect by minimizing the flowability of flocs deposited at the bottom of the filtration tank due to influent overflow.

The backwashing device 400 is configured to initialize the filtration rate and function by jetting high pressure air or washing water to the artificial floating material 220 stacked in the filtration tank 200 to remove contaminants adsorbed on the outer surface of the filtering material .

At this time, the backwashing apparatus 400 is formed such that a high-pressure air is sprayed to the blower by forming a diffuser pipe on the artificial floating material 220.

That is, if the operation time of the filtration tank becomes longer, the flow velocity of the overflow or the flow rate of the treated water is lowered as the contaminant collecting amount increases between the LCD artificial floating filter media, or the water level of the tank before the overflow is increased do.

In this case, the LCD artificial floating media should be backwashed to remove the contaminants trapped between the LCD artificial floating media.

In other words, when the flow rate or the water level sensed through the detection sensor for detecting the flow velocity or the water level reaches a predetermined set value, the supply of the overflow water supplied to the filtration tank is stopped by using the inflow- And the air and the backwash water are supplied to clean the LCD artificial floating material.

At this time, in order to backwash the LCD artificial floating material, the valve of the overflow water pipe is closed, air is blown through the air supply unit provided at the lower part of the filtration tank, the LCD artificial floating material flows, So that the pollutants are separated and discharged to the sludge discharge pipe under the filtration tank.

At this time, it is also possible to supply the treated water through the outlet pipe to the upper portion of the filtration tank, or to provide a separate backwash water supply device.

At this time, the air supply unit may include a blower for injecting air for cleaning the LCD artificial floating filter of the filtration tank and an air storage tank capable of storing air made in the blower, so that the air stored in the air storage tank can be supplied to the filtration tank equally It is preferable to provide a lattice type anagen pipe below the filtration tank underfeed portion.

In the embodiment of the present invention, the backwash water is supplied back through the outlet pipe as an example, but a separate backwash water supply device is provided.

The disinfection treatment water tank 500 is formed at one side of the filtration tank 200 so that the discharge pipe 510 is communicated with the vicinity of the upper water level of the enclosure tank 210. On the line of the discharge pipe 510, A treatment device 520 is formed to sterilize the coliform bacteria with respect to the discharged water or return the coliform bacteria to the backwash water.

That is, the disinfection apparatus is an ion sterilizing apparatus for disinfecting coliform bacteria accommodated in treated water that has been overflowed through a filtration tank. The disinfection and disinfection method of the present invention can reduce the risk of carcinogenesis caused by chlorine disinfection and disinfection by- THM generation and alternative disinfection technologies ozone and UV sterilization persistence problem, which is a disinfection method, is composed of an ion release unit and a control unit.

That is, copper (Cu) and silver (Ag) ions produced by the electrolysis of copper-silver (Cu-Ag) alloy having proven sterilizing power are supplied to the flow- (Cu) and silver (Ag) ions to release the copper (Cu) and silver (Ag) cations and to maintain the sterility of the remaining copper It is an integral structure connected to a channel that is attached to the negative charge area and destroys the cell structure and prevents the cell from absorbing or multiplying nutrients and performs the sterilizing function. It is composed of a cell type including an electrode for ion release, It has easy features.

At this time, the control unit of the disinfection device (ion sterilization device) is configured to control the amount of ion emission of the electrode by the voltage output proportional to the fluctuation of the flow rate by the current signal, the flow rate switch and the timer attached to the flowmeter.

In summary, according to the present invention, when rainwater effluent and sewage are mixed into a sewage treatment plant in a sewage pipeline during rainfall, the remaining sewage water excluding the sewage treated in the normal sewage (1Q) is filtered at high speed using LCD artificial floating media .

In the case of existing sewage treatment plants, it is considered that there is a limit that it is difficult to secure sufficient free space to install additional sewage water treatment facilities due to the saturation of the site for installation of the facilities. Therefore, the sewage effluent treatment facility requires a small footprint, And to develop a technology that can handle it.

Accordingly, the present invention compares the site area required for installing the first settling basin of the sewage treatment plant and the site area required for application of the present invention, which are presented in the above-mentioned sewerage facility standard, as shown in Table 3 below.

Comparison of surface load ratio and site area by treatment facilities

As shown in Table 3, when the present invention is applied to improve the primary settling basin installed in an existing sewage treatment plant, there is no need to reserve a spare site or it is possible to install a treatment facility by securing a minimum site It is necessary to carefully consider whether it is applicable in consideration of the on-site conditions because there are limitations such as the partial shutdown of the existing treatment facilities when the facilities are improved.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

100 ... coagulation tank 110 ... tank body
111 ... inlet pipe 112 ... drain pipe
120 ... medicine supplier 130 ... stirrer
131 ... impeller 140 ... bulkhead
150 ... Euro 160 ... Detection sensor
200 ... Filtration tank 210 ... Enclosure tank
220 ... artificial floating material 230 ... sludge settling portion
231 ... discharge hole 232 ... sludge discharge pipe
240 ... media upper support 250 ... media lower support
300 ... overflow water pipe 310 ... inflow end
320 ... Porous distribution stage
400 ... Backwashing device
500 ... disinfection treatment water tank 510 ... discharge pipe
520 ... disinfection processing device 521 ... ion discharge pipe
522 ... controller 530 ... pump
540 ... backwash feeder

Claims

A tank main body 110 having an inlet pipe 111 and a drain pipe 112 is provided so as to form floc (flocculation or coagulation) with respect to the inflow of the overflow water. In one side and the other side of the tank main body 110, A flocculation reaction tank 100 in which the introduced medicament is mixed with the overflow water of the impeller 131 of the stirrer, An embankment tank 210 is formed so as to perform a substantially filtration process on the chemical-treated overflow, and an artificial floating material 220 is formed inside the enclosure tank 210 on the basis of the divided space, A filtration tank 200 for forming a sludge settling portion 230 having a discharge hole 231 and a sludge discharge pipe 232 so that the solid-liquid separated sludge is deposited and discharged therefrom; The drainage pipe 112 and the upper inlet end 310 of the flocculation reaction tank 100 are connected to each other so that the lower porous outlet end 320 enters the upper part of the filtration tank 200 and passes through the artificial floating filter material 220 A drainage pipe (300) for allowing an upward flow type filtration process to be performed by being located inside the lower portion of the back casing tank (210); A backwashing device 400 for initializing or recovering the filtration speed and the function by removing contaminants adsorbed on the outer circumferential surface of the filtering material by spraying high pressure air or washing water to the artificial floating material 220 stacked in the filtration tank 200, Wow; A disinfection device 520 is formed on the line of the discharge pipe 510 so that the discharge pipe 510 is connected to the discharge water pipe A disinfection treatment water tank 500 formed to sterilize the coliform group or return the coliform group to the backwash water; The flocculation reaction tank 100 is divided into two reaction chamber zones by an internal partition wall 140. At the lower end of the partition wall 140, And a flocculant containing PAC chemicals is rapidly mixed with a reactive substance and a colloidal substance contained in the sewage water, so that a small floc is formed. A rapid reaction tank (Z-1) for forming a reaction tank; The micro-condensation particles of small flocs are caused to collide with the drainage-side reaction tank zone transferred from the rapid reaction tank through the flow path 150, and the crosslinked auxiliary coagulant containing polymer is mixed with a large floc A slow reaction tank (Z-2); Wherein the flocculation reaction tank 100 is provided with a sensing sensor 160 for detecting the level of water at one side thereof and detects the height of the water level due to an increase in the amount of contaminants collected in the filtration tank 200 to a predetermined value or more, And the backwashing device 400 is operated to clean the artificial floating material 220. The filtration tank 200 is a structure in which the artificial floating material 220 is lost due to the water pressure of the overflow water (240) on which a barrier and a weir are formed to uniformly control an outflow flow rate of the overflow water; A lower material support 250 in which the artificial floating material 220 forms a barrier in the enclosure tank 210 and a blocking film is formed so as to prevent the lowering or dropping of the artificial floating material 220 to the lower part when it is filled (filled); And the backwashing device 400 is formed such that a high pressure air is injected into the blower by forming an acid gas pipe on the artificial floating material 220. The sterilization treatment water tank 500 has a pump The sterilizing treatment device 520 may further include a backwash supply device 540 to sterilize the disinfection water during the backwash to the filtration tank 530. The sterilization treatment device 520 may be a copper or a copper- And an ion release tube 521 for allowing the ionized water to be filtered by the destroyed membrane to block the absorption or proliferation of the protein, and; A control unit (522) for controlling the amount of emitted ions of the electrode by the voltage output proportional to the fluctuation of the flow rate of the filtered overflow; And the overflow water conveyance pipe 300 is formed by piercing a hole having a diameter of 3 mm to 30 mm in a part of the outer circumferential surface to allow the overflow water to flow out to the filtration layer In a high-speed treatment apparatus for sewage water,
The overflow water conveyance pipe 300 is formed such that a porous distribution stage 320 having a cross shape is formed under the filtration tank and the porous distribution stage 320 is fixed to the side wall of the filtration tank A high - speed treatment device for sewage effluent using foaming artificial floating media having natural eco - friendliness and resource recyclability.

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