KR100856913B1 - Method of waste water treatment and the waste water treatment plants employing thereof - Google Patents

Abstract

A wastewater treatment method is provided to remove organic matters, heavy metals, recalcitrant substances and nutrients more effectively, assure stable water purification capability, and improve cumbersomeness in construction or replacements by forming peat moss in the form of a filter with a predetermined shape and disposing the filter in a purification tank, and a wastewater treatment plant employing the method is provided. A wastewater treatment plant comprises: a screen tank(11), a collecting and settling tank(12), and a sludge dewatering equipment(17) for performing a pretreatment step of removing solids and sludge; a water treatment tank(13) including an ozone water treatment tank for performing sterilizing, deodorizing and discoloring the wastewater en bloc to carry out a water treatment step by sterilizing, deodorizing and discoloring wastewater from which the solids and sludge have been removed and removing fine sludge from the wastewater, and a micro-filter tank(14) for removing fine sludge by filters; a purification tank(16) in which a water treating material is disposed to perform a purification process of purifying wastewater passing through the water treatment step and discharging the purified wastewater, the water treating material being prepared in the form of a filter by solidifying Sphagnum Peat Moss as a natural organic material that has been uniformly pulverized to a particle size corresponding to a sieve size of 18 to 100 mesh; and an activated carbon tank(18) using activated carbon for adjusting color variations of effluent generated in the early purification stage in the purification tank. Further, a type of the filter is one of plate, roll and cartridge.

Description

Wastewater Treatment Method and The Wastewater Treatment Plant to which the method is applied {Method of Waste Water Treatment And The Waste Water Treatment Plants Employing Thereof}

1 is a block diagram schematically showing a configuration of a sewage terminal treatment method patented by the present applicant and a simple sewage terminal treatment plant performing the method,

2 is a schematic block diagram sequentially showing a wastewater treatment method according to the present invention;

3 is a block diagram schematically showing the configuration of a wastewater treatment plant performing the wastewater treatment method according to the present invention;

Figure 4 is an embodiment of a septic tank performing a purifying step according to the present invention, a schematic view showing a configuration in which peat is manufactured and arranged in a cartridge-shaped filter,

5 is a view schematically illustrating a configuration in which peat is manufactured and arranged as a plate-shaped filter as another embodiment of a septic tank performing a purifying step according to the present invention;

FIG. 6 is a view schematically illustrating a configuration in which peat is manufactured and arranged as a roll-shaped filter as another embodiment of a septic tank performing a purification step according to the present invention;

7 is a view showing that the peat, which is a water treatment material according to the present invention, is manufactured in a cartridge type filter, is manufactured in a state of a basic unit and an intermediate unit;

8 and 9 are a plan view and a side view showing a state in which peat, which is a water treatment material according to the present invention, is made of a cartridge type filter and constitutes a unit unit, that is, one septic tank.

FIG. 10 is a photograph showing the bulk of the peat, which is a water treatment material according to the present invention, before being crushed evenly to be produced as a filter. FIG.

Explanation of symbols on the main parts of the drawings

11 screen tank 12 collection and settling tank (or pressurized flotation tank)

13: water treatment tank 14: fine filter tank

15: magnetization water 16: septic tank

17: sludge dewatering facility 18: activated carbon tank

21: inlet 22: discharge water outlet

23 filter 24 circular fixing frame

25: media layer 26: Koabu

The present invention relates to a wastewater treatment method and a wastewater treatment plant to which the method is applied, and more particularly, Patent Registration No. 661978 (December 20, 2006, registered by the present applicant) Registration: sewage end treatment method and the method By supplementing and improving the problems of the simple sewage terminal treatment plant employing the sewage treatment, it is possible to obtain the effect of extending the life of the natural organic substance, Sphagnum Peat Moss, as well as eliminating the need for activated sludge (microbial) tank, which is basically required in conventional wastewater treatment. Wastewater that enables effective removal of organic matter, heavy metals and hardly decomposable substances, nitrogen, phosphorus and other nutrients, which are major causes of eutrophication and red tide phenomena, without making a large amount of sludge by activated sludge A treatment method and a wastewater treatment plant to which the method is applied.

As is well known, the concentration of population due to urbanization of modern industrial society has led to the generation of large amounts of living sewage and industrial wastewater, which, in turn, has a serious effect on the environmental state system due to an increase in pollution load and accumulation in the surrounding environment. It is true.

In particular, as family life improves, water pollution, such as food waste and synthetic detergents, which are inadvertently thrown away, and water pollution due to a surge in septic tanks, are increasing.In addition, industrial wastewater and fishery wastewater flowing out of factories due to rapid economic growth And by accelerating water pollution by livestock wastewater, our lives are threatened.

As the environmental pollution is getting serious due to the increasing amount of garbage and pollutants, as well as the acceleration of water pollution, there are no places where the pollutants can be effectively treated, and the treatment is becoming difficult. The reality is that enormous economic costs are being incurred to improve water pollution.

In this regard, the applicant has recently been able to more effectively remove nutrients such as nitrogen and phosphorus, which are the main causes of eutrophication and red tide, by utilizing natural organic matter, Sphagnum Peat Moss, in connection with sewage treatment. Patent for "sewage terminal treatment method and a simple sewage terminal treatment plant employing the method" that can significantly reduce the has been filed and recently registered (Patent Registration No. 661978; December 20, 2006).

That is, as shown in FIG. 1, the invention described in the patent registration No. 661978 includes a sewage discharged from a home or a factory by a water collecting tank 11 having a screen 12 in a sewage at the same time. A sewage collection step (S1) for performing a role of filtering the solids; A sludge removal step (S2) of pumping the sewage collected in the sump (11) through a pumping means (P1) to be sent to a sludge adjuster (13) to separate the sludge and water contained in the sewage; Dewatering step (S3) for removing the water contained in the sludge by using the sludge dehydration facility (15) by moving the sludge collected through the sludge adjuster 13 through a conveyor transport device (14); A filtration step (S4) of receiving the sewage separated from the sludge through the sludge adjuster 13 to the filtration tank 16 to remove fine sludge through the screen filter 17 provided on the filtration tank 16; Pumping means in the septic tank 20 including a filtration sand layer having a natural filtration function for the sewage in which the sludge is removed from the filtration tank 16, and a water treatment material layer for laminating peat peat, which is a natural organic material, and using it as a water treatment material. By supplying to (P2), the purification step in which the organic matter and nutrients contained in the sewage in the septic tank 20 is adsorbed on the peat of the water treatment material layer to purify the sewage as it is biodegraded by naturally occurring microorganisms (S5). Disclosed is a sewage terminal treatment method comprising a).

Here, looking at the contents of the invention disclosed in the Patent Registration No. 661978, by removing the aeration step to remove the organic matter by using the aeration tank according to the standard activated sludge method mainly used in the sewage treatment process in the conventional sewage treatment plant, water As a kind of moss, peat, which is a natural organic substance, includes a septic tank in which water is used as a water treatment material, which effectively removes organic matter and effectively removes nutrients such as nitrogen and phosphorus, which are major causes of eutrophication and red tide. It is to be removed.

In particular, by using the septic tank 20 applied with peat as a water treatment material, the size of the septic tank itself is relatively small, which is preferable in terms of securing an installation site, and the acquisition of a small maintenance organization and maintenance technology for a treatment facility It is easy to maintain and maintain the convenience, and to provide a new type of simple sewage treatment plant that will have excellent economic efficiency by reducing the construction cost and maintenance cost.

That is, peat, which is a water treatment material used in the septic tank 20 disclosed in Patent No. 661978, is a kind of water moss produced and supplied in the 48 ° Canadian Albert region north latitude, and has a unique fibrous porous cell structure. The porous cell structure has a strong adsorption capacity of 8.3 to 10 times its own weight by capillary action, encapsulates the adsorbed material, and does not re-leak without using external pressure of more than 4 bar. Experimental results show that microorganisms can biodegraded nutrients such as nitrogen and phosphorus adsorbed through the host function of the developing microorganisms in the natural state, and have an excellent effect on sewage treatment.

By the way, in the case of the septic tank 20 disclosed in the patent registration No. 661978, natural dropping in a state in which the peat forming the water treatment material layer is evenly stacked in a bulk form between the filter sand layers composed of filtered sand such as crushed sand. In this way, the sewage flows down and is purged from the water treatment layer.

Even in the structure of the septic tank 20, it was confirmed empirically that nutrients such as nitrogen, phosphorus, and heavy metals contained in the sewage were greatly purified by peat, but the peat was laminated in a bulk form as described above. Because of the irregularity of the particles, there is a problem that the drift phenomenon occurs, the overall problem that the water purification function was found to be somewhat unstable.

In addition, the construction process by stacking the filter sand layer and the water treatment material layer in the septic tank 20, the initial construction, as well as the purification life of the peat constituting the water treatment material layer is a problem that the replacement work is somewhat cumbersome when replacement is required There was this.

As a result, there is a need to find ways to extend the life of peat while purifying the water quality of peat in a stable manner, and to prevent corruption by pathogenic microorganisms because peat itself is a natural organic matter. This, together with the need to compensate for the discoloration of the color emitted from peat and weaknesses for odor-causing substances.

Thus, the present invention supplements and improves the problems of Patent Registration No. 661978 disclosed by the applicant as described above, and is applicable to various wastewater treatment plants such as domestic sewage, industrial wastewater, livestock wastewater, and fishery wastewater, as well as water purification plants and sewage terminal treatment plants. To provide a wastewater treatment method and a wastewater treatment plant to which the method is applied.

That is, an object of the present invention is to use a peat used as a water treatment material in the form of a filter having a predetermined shape, such as plate, roll, cartridge type, rather than using a bulk crushed bulk form, and then placed in a septic tank By doing so, it is possible to effectively remove organic matter, heavy metals and hardly decomposable substances, which are the basic purposes of water purification, and to remove nutrients such as nitrogen and phosphorus, which are the main causes of eutrophication and red tide, as well as stable water purification ability. The present invention provides a wastewater treatment method and a wastewater treatment plant to which the method is applied to ensure the safety and improve the trouble of construction and replacement.

In addition, another object of the present invention is that the raw water (wastewater) supplied to the septic tank disposed in the form of a filter of natural organic substance peat, which is a water treatment material, undergoes a water treatment process step such as sterilization, deodorization, and decolorization, so that the peat itself, which is a water treatment material, is a natural organic matter Therefore, the present invention provides a wastewater treatment method and a wastewater treatment plant to which the above method is applied, which improves the problem of corruption caused by pathogenic microorganisms and greatly extends the water purification life of peat.

As described above, the present invention is peat, which is a water treatment material applied to the water treatment tank in the form of a filter, itself has the characteristics of natural organic matter, and thus it is energy-saving by the purification method using natural pressure while having high reliability of water treatment. It is not necessary to make a large amount of sludge by activated sludge, as well as to remove nutrients such as nitrogen and phosphorus, because there is no need for a somewhat aversive facility to oxidatively decompose organic matter and mass-reduce sludge by proliferating microorganisms. Since it is not necessary, the facility itself can provide a wastewater treatment method having the advantages of being resident-friendly and environmentally friendly, and a wastewater treatment plant to which the method is applied.

The present invention for achieving the above object, the pretreatment step of removing the solids and sludge; A water treatment step of controlling sterilization, deodorization, decolorization, and turbidity by using a water treatment tank capable of controlling sterilization, deodorization, decolorization, and turbidity of the raw water (wastewater) of the sludge from which the sludge is removed through the pretreatment step; Peat, a natural organic matter, evenly crushed into 18 to 100 mesh is solidified, prepared in the form of a filter, made of a water treatment material, and then supplied with raw water (wastewater) of the supernatant water level after the water treatment step through a septic tank disposed according to a set standard. A purifying step of receiving, purifying and releasing; By using the peat which is a natural organic matter in the purification step as a water treatment material is achieved by providing a wastewater treatment method comprising a color adjustment step for adjusting the color change of the effluent generated in the early stage of purification.

At this time, the pretreatment step is to remove the solids contained in the waste water by the screen tank having a screen, and the waste water from which the solids are removed from the screen tank through the collection and settling tank (or pressurized flotation tank) It is preferable that the water collecting and sedimentation step of collecting sludge in the wastewater by collecting water and the sludge removal step of removing the sludge generated in the collecting and sedimentation and water treatment steps, respectively.

By using an ozone water treatment tank as the water treatment tank of the water treatment step, sterilization, deodorization, and decolorization treatment by ozone water are collectively performed in the ozone water treatment tank, and then fine sludge is removed by a filter in a fine filter tank to adjust turbidity. Alternatively, by combining ultraviolet sterilization tank and activated carbon tank with the water treatment tank, raw water (waste water) is sterilized by ultraviolet rays in the ultraviolet sterilization tank, and raw water (waste water) is deodorized and decolorized by activated carbon in the activated carbon tank. Then, it is preferable to adjust the turbidity by removing the fine sludge by the filter in the fine filter tank.

In particular, the wastewater treatment plant to which the above wastewater treatment method is applied includes a screen tank, a collection and settling tank (or a pressure flotation tank), and a sludge dewatering facility capable of performing a pretreatment step of removing solids and sludge; Removal of the water treatment tank and micro sludge which are sterilized, deodorized and decolorized so as to perform the sterilization, deodorization, decolorization treatment and water treatment step of removing the fine sludge (SS) from the wastewater of the supernatant level from which the solids and sludge have been removed. Equipped with a fine filter tank; The water treatment material prepared in the form of a filter is prepared by solidifying peat which is evenly crushed natural organic matter to 18 to 100 mesh so as to perform a purification step of receiving and purifying the raw water (waste water) of the supernatant water level passed through the water treatment step. With septic tank; In the septic tank is characterized in that the activated carbon tank using the activated carbon for controlling the color change of the effluent generated during the initial purification.

At this time, it is preferable to install a magnetizer that can generate magnetized water by magnetizing raw water (waste water) through a magnet on the rear pipe line of the screen tank.

In particular, the septic tank according to the present invention has a cylindrical or hexahedral exterior structure and an upper surface structure so that peat, which is a water treatment material, can be loaded or disposed in a predetermined region, and raw water (waste water) is disposed on one side of the septic tank. ) Is provided with an inlet for supplying) and the other side is provided with a discharge water discharge port for discharging the purified discharge water, and a flow rate adjusting device is provided so that a constant flow rate is always introduced into the septic tank in front of the inlet of the septic tank. A discharge amount sensing device for detecting the discharged water discharge amount is provided at the rear of the discharge water discharge port, and the septic tank is preferably provided with a back washing device capable of performing a back washing function.

Hereinafter, the wastewater treatment method according to the present invention will be described in more detail with reference to the accompanying drawings.

2 is a schematic block diagram sequentially showing a wastewater treatment method according to the present invention, Figure 3 is a block diagram schematically showing the configuration of a wastewater treatment plant for performing the wastewater treatment method according to the present invention, Figure 4 is a present invention As an embodiment of the septic tank for performing the purifying step according to the present invention, a view schematically illustrating a configuration in which peat is manufactured and arranged as a filter in the form of a cartridge, and FIG. 5 is another embodiment of the septic tank performing the purifying step according to the present invention. As a schematic view showing a configuration in which peat is manufactured and arranged in a plate-shaped filter, and FIG. 6 is another embodiment of a septic tank performing a purification step according to the present invention. A diagram schematically showing the arrangement arranged.

And, Figure 7 is a view showing that when the peat which is a water treatment material according to the present invention is manufactured in a cartridge type filter, the base unit, the intermediate unit is produced in a state, Figures 8 and 9 is a peat cartridge which is a water treatment material according to the present invention It is a top view and a side view which show the state which comprises a unit filter, ie, one septic tank, manufactured with a type | mold filter.

In addition, Figure 10 is a physical picture showing the bulk before the peat, which is a water treatment material according to the present invention evenly crushed to produce a filter.

As shown in FIG. 2, the wastewater treatment method according to the present invention sterilizes and deodorizes the wastewater of the supernatant level in which sludge is removed through the pretreatment step S1 and the pretreatment step S1. In the water treatment step (S2) for decolorizing, the purification step (S3) for purifying the wastewater of the supernatant water level passed through the water treatment step (S2), and the use of peat, which is a natural organic material, in the purification step (S3) as a water treatment material It can be divided into a color control step (S4) for controlling the color change of the effluent generated in the early stage of purification.

Here, wastewater is a general meaning of living sewage, industrial wastewater, animal husbandry wastewater, and fishery wastewater, which are the main causes of water pollution, and are often related to water pollution such as sewage and sewage, or sewage and wastewater. It has a generic meaning that encompasses everything.

On the other hand, the pre-treatment step (S1) to filter the solids and sludge contained in the waste water discharged from the home, factory, barn, etc., to facilitate the smooth processing of the subsequent treatment process, it is already sewage Or it is a well-known process step performed basically in the water treatment work process, which is very common and widely used in sewage treatment plants, such as waste water treatment.

Therefore, the pretreatment step (S1) is carried out to remove the solids and sludge in the waste water can be selectively employed according to the needs of the various methods currently disclosed, the type of solids and sludge forms included in the waste water generated It is desirable to design the process considering the overall wastewater situation and location conditions.

However, as a preferred embodiment of the present invention, when the pretreatment step (S1) is subdivided, it is divided into a solids removal step (S1-1), water collection and precipitation step (S1-2), sludge removal step (S1-3) It is preferable to, but is not limited to this as described above.

That is, if there is a more effective method or structure for removing the solids and sludge, it is of course possible to employ a combination of various methods.

Hereinafter, as one preferred embodiment of the present invention, some of the known techniques basically required in the pretreatment step (S1) will be described with reference to the accompanying drawings.

Solids removing step (S1-1) of the pre-treatment step (S1) is a process for filtering the solids contained in the wastewater discharged from the home, factory, barn, etc. by the screen tank (11).

That is, the solids removing step (S1) is the initial step of filtering out the solids, such as soil, sand, various debris through the screen not shown in the screen tank 11 to remove the waste water discharged from the home or factory, etc. Meaning, in this case, the size of the screen installed in the screen tank 11, as used in the normal sewage treatment plant, etc., it is preferable to install a crude wood screen 60 ~ 150㎜, fine screen 15 ~ 25㎜ It is not limited to this.

As such, when the solids (or contaminants) contained in the wastewater introduced from the screen tank 11 are removed through the screen in advance, the load of the subsequent treatment process is reduced, the facility capacity of the subsequent treatment facility, and the stable operation cost are reduced. It is possible to provide a pretreatment process through which the treatment efficiency can be increased.

Waste water from which the solids have been removed from the screen tank 11 is pumped through a pumping means (not shown) to collect and settle (S1-2).

At this time, by installing the magnetizer 15 on the supply pipe to send the raw water (waste water) from which the solid matter is removed through the screen tank 11 to the collecting and settling step (S1-2), the magnetized water in the raw water (waste water) It is desirable to generate a.

That is, the magnetizer has a magnetic force of about 4,500 ~ 7,000 gauss by attaching a magnet on the conduit, so that the magnetic force acts on the waste water passing through.

As such, the purpose of installing the magnetizer is to increase the self-cleaning effect of the waste water in the water collecting and sedimentation step (S1-2) to be described later, and to prevent the scale from occurring in the pipe, thereby improving efficiency in terms of facility management. .

In addition, it is preferable that a screw-type pump is used as the pumping means for sending the waste water from the screen tank 11 to the water collecting and sedimentation step (S1-2).

The reason for using the screw type pump among such many types of pumps is that the solids contained in the wastewater in the screen tank 11 are primarily removed by the screen, but the waste water still contains a lot of sludge. This is to minimize the pump failure in the wastewater pumping process by pumping the wastewater by using a screw-type pump with a relatively low risk of failure.

In the collecting and settling step (S1-2), the sludge and water not included in the waste water are not filtered by the screen.

That is, in the water collecting and settling tank 12, as well as materials having a specific gravity such as stone chips and sand, various sludges are precipitated and separated from water.

For example, when the sump and sedimentation tank 12 is installed in a simple sewage terminal treatment plant capable of sewage treatment up to 100 t (ton) per day in a village having about 200 to 400 households, the size of the facility The collection and settling tank 12 according to the present invention preferably has a collection capacity of approximately 1/5 level (about 20 tons) of sewage treatment per day.

In particular, the role of the collection and sedimentation tank 12, the sewage generated in the village unit does not always occur constantly but occurs very irregularly, as well as the generation amount can only vary by thousand, the collection and sedimentation tank ( 12) it is preferable to collect the sewage to a certain level, and then send the collected sewage to the next process, so that the next process can be smoothly progressed.

At this time, the specifications of the sump and sedimentation tank 12 presented above are presented as one preferred embodiment, and are not limited to the above standard, such as wastewater treatment capacity, rainy season and dry season required for a day of wastewater treatment plant. By considering the overall local situation, such as seasonal weather conditions and average wastewater generation, it is obvious that the design will be appropriately designed through a review of various variables.

In particular, the sludge and water may be separated using a pressurized flotation tank (not shown) in addition to the collection and settling tank in the collection and settling step (S1-2).

In addition, in the water collecting and settling tank or the pressure flotation tank, the chemical method is usually used in parallel in order to precipitate or float the sludge more quickly. The chemicals required are three kinds of aluminum sulfate, caustic soda, and polymer polymer. It is common to combine them.

As such, the collecting and settling step (S1-2) is a step of separating the sludge contained in the raw water (wastewater) with water, and multiply the microorganisms (bacteria) through the aeration tank in a manner that can effectively separate the water and sludge. It is acceptable to use any method except the method of oxidatively decomposing organic matter to precipitate and remove sludge.However, it is preferable to select a more efficient method among the known methods in consideration of various design conditions such as location conditions such as a wastewater treatment plant. It is preferable.

And, the sludge collected and collected through the collection and settling tank 12 is moved to a separate place by the sludge removal step (S1-3) and dewatered using the sludge dehydration facility 17, and then the sludge is disposed of. The moisture generated in the sludge removal step (S1-3) is collected and sent back to the sump and settling tank 12.

At this time, the sludge dewatering facility 17 is preferably a device such as a pressure filter that combines filtration and compression, and a filter press that is widely used in sewage treatment plants in Korea.

The sludge dewatering facility 17 itself for dewatering and reclaiming such sludge is one of the facilities essential in a conventional wastewater treatment plant, and it is a technology for solidifying the sludge and minimizing its size to facilitate transportation and landfilling according to the export. This is already well tolerated and universal.

Thus, the sludge dewatering process itself in the present invention employs conventional techniques as they are.

Therefore, in the present invention, the specific equipment and the specific work process of the sludge removal step (S1-3) for dewatering such sludge will be omitted.

On the other hand, when the sludge separated through the collecting and settling tank 12 is transferred to the sludge dewatering facility 17 as described above to go through the sludge removal step (S1-3), by the collecting and settling tank 12 The water separated from the sludge is sent to the water treatment step (S2) as it is, sterilization, deodorization, decolorization treatment and fine sludge is filtered to be treated to a more stable supernatant level.

That is, the water treatment step (S2), as well as removes the fine sludge (floating material; SS) contained in the waste water before the supernatant is purified in the septic tank 16 to be described later, as well as undergoing a process such as sterilization, deodorization, decolorization. This is a preliminary step to ensure that the waste water itself is treated at the supernatant level which is visually very transparent and fed to the septic tank.

By going through the water treatment step (S2) as described above, it maximizes the purification efficiency in the septic tank 16 of the present invention described later, and greatly extends the water purification life of the natural organic material peat, which is a water treatment material disposed in the septic tank 16. The purpose is to make it possible.

In particular, the purpose of sterilizing raw water (waste water) before the purification step to be described later is that the peat, which is a water treatment material that is installed by filtering in a septic tank, is a natural organic substance, so that corruption may occur due to pathogenic microorganisms, thus sterilizing raw water (waste water). By doing so, the problem is to be prevented in advance.

In addition, there is also an object to reduce the occurrence of the biofilm phenomenon on the surface of the filter made of peat, which is a natural organic material.

Here, looking at the water treatment step (S2) in more detail, the water treatment step (S2) is sterilized, deodorized, decolorized raw water (waste water) through the water treatment tank 13, and than the fine sludge contained in the raw water It's a complete step.

At this time, the water treatment tank 13 used in the water treatment step (S2) may be configured through various combinations.

That is, since the water treatment step (S2) is a step of sterilizing, deodorizing and decolorizing raw water (waste water) and removing fine sludge, various combinations of known conventional techniques that can be sterilized, deodorized and decolorized are used. Will be available.

For example, the ozone water treatment tank may be employed as the water treatment tank 13 of the water treatment step S2 to collectively perform sterilization, deodorization, and decolorization treatment by ozone water in the ozone water treatment tank.

At this time, the ozone water treatment tank is a treatment tank having a system for producing sterilizing water by mixing ozone gas having strong sterilizing power with water, and as is well known, high concentration of ozone water has a function of sterilization as well as deodorization and decolorization. It is widely known.

Such ozone gas generation includes ultraviolet type, discharge type, and electrolysis type, and ozone water generation includes gas dissolving type and electrolytic type, but for the purpose of sterilization, electrolysis type which can obtain stable high concentration ozone water is more preferable. Can be.

That is, various well-known technologies are known in the system for generating ozone water, and therefore, in the case of installing the ozone water treatment tank, it is possible to selectively adopt the system in consideration of economic cost and installation conditions.

On the other hand, by combining the ultraviolet sterilization tank, activated carbon tank to the water treatment tank 13 in the water treatment step (S2), the raw water (waste water) is sterilized by ultraviolet rays in the ultraviolet sterilization tank, the activated carbon in the activated carbon tank Raw water (waste water) can also be deodorized and decolorized.

Here, the ultraviolet sterilization tank is a treatment tank equipped with a system for generating and sterilizing ultraviolet rays through an ultraviolet sterilizer, that is, an ultraviolet lamp (UV LAMP), and the ultraviolet sterilizer sterilizes microorganisms such as E. coli in a wastewater treatment plant or a sewage terminal treatment plant. It is a situation that is used to process, UV sterilization system is also known a variety of known techniques, in the installation of the ultraviolet sterilizer in consideration of the economic cost and installation conditions may be selectively employed.

In addition, the activated carbon tank is a treatment tank using activated carbon having a good effect on deodorization and decolorization, and also known publicly known technologies and various apparatuses are disclosed, and detailed description thereof will be omitted.

As described above, the raw water (waste water) sterilized, deodorized, and decolorized through the water treatment tank 13 may remove fine sludge (floating material; SS) through the fine filter tank 14.

That is, when the fine sludge (floating material; SS) is removed by the filter in the fine filter tank 14, the turbidity is additionally adjusted, thereby increasing the purification efficiency of the purification step (S3) described later and the purification tank (16) It is desirable to be able to reduce the load of the internal water treatment material.

Here, the fine filter tank 14 is for removing the fine sludge through the filter, the filter is a membrane filter, ciliated filter, and sand filter (Sand Filter) and the like are variously known, among them It is desirable to selectively install devices that use ciliated filters, such as PCF (Pore Control Fiber) FILTER and GFF (Gravity Flow Fiber) FILTER, which are generally manufactured and sold in the USA.

At this time, PCF (Pore Control Fiber) FILTER installs the fiber yarn bundle as a filter around the perforated pipe (plate), compresses and compresses the pores by using compression means such as a rotary mechanism, and then filters them by relaxing and increasing the pores. It is a filter backwashed with backwash water, and it is called TWIST FILTER because the fiber bundle is twisted around the porous tube during filtration and the filter media is controlled by compression and relaxation.

In addition, the GFF (Gravity Flow Fiber) FILTER is tensioned by the non-woven fibrous media bundle is fixed to the bottom to compress the filtration layer so that the thickness of the layer 2 ~ 3Cm on the perforated plate, gravity filtering to about 30Cm water level difference, and reaches the set water level Is a gravity-type fiber filter that backs up with a strong shear force due to fiber flow by spraying backwashing air and forming a rising turbulent flow.When two or more units are installed, backwashing water is supplied as a rising flow, so a backwash pump is not needed. Device.

As such, a filter capable of removing fine sludge is also variously known, and may be selectively employed in consideration of installation conditions and the like.

As such, in the water treatment step (S2), raw water (waste water) is sterilized, deodorized, and decolorized, and fine sludge is removed. The sterilization, deodorization and decolorization may be used alone as an ozone water treatment tank. And, it is illustrated that can be used in combination with ultraviolet sterilization tank and activated carbon tank, but is not limited thereto.

In this way, the raw water removed to the fine sludge through the water treatment step (S2) is sent to the septic tank 20 to perform the purification step (S3), which is the most important step of the wastewater treatment process of the present invention to the supernatant level.

Here, the septic tank 20 is a facility for performing the most important purification step (S3) of the facility for performing the wastewater treatment method according to the present invention, the schematic configuration of the septic tank 20 is well shown in Figs. Is shown.

That is, as shown in Figures 4 to 6, the septic tank 20 is the organic material by the naturally occurring microorganisms in the state of encapsulating by adsorbing organic substances, such as nutrients contained in the supernatant after the water treatment step (S2). It has a configuration that includes a water treatment material consisting of peat, a natural organic material that can be biodegradable in nature.

Looking at this in more detail, the septic tank 16 is divided into a predetermined area, then evenly crushed peat in the partitioned solidified by a solidifying agent to have a uniform shape structure, such as plate type, roll type, cartridge type It has a structure in which the water treatment material manufactured in the form of the filter 23 is arrange | positioned.

At this time, the peat is preferably crushed into 18 to 100 mesh (MESH) evenly.

Here, the septic tank 16 has a cylindrical or hexahedral appearance so that the natural organic material peat, which is a water treatment material, can be placed or placed in a predetermined area in the form of a filter 23 having a predetermined shape such as a plate type, a roll type, and a cartridge type. It has a structure, and the upper surface is normally opened so that the water treatment material in the form of the filter 23 can be inserted into the inside.

In addition, an inlet 21 for supplying raw water (wastewater) is provided at one side of the septic tank 16, and at the other side, a discharge water outlet 22 for discharging the purified effluent is provided.

In the septic tank 16, a flow path through which the supernatant introduced through the inlet 21 may be discharged to the discharge water outlet 22 through a water treatment material in the form of a filter 23 is designed according to the arrangement of the water treatment material. have.

That is, since the water treatment material may be variously modified into a plate type, a roll type, a cartridge type, and the like during the process in which peat is manufactured in the form of a filter 23, the internal structure of the septic tank 16 according to the shape structure of the filter 23. And the appearance shape is determined.

Therefore, since the flow of purified water in the septic tank 16 can be designed differently depending on the structure in which the water treatment material in the form of the filter 23 is arranged, the flow path in the septic tank 16 is not limited, but variously. It can be designed.

Of course, it is natural that the flow path is formed in a procedure in which the raw water (waste water) of the supernatant water level supplied through the inlet 21 is purified while passing through the filtered water treatment material and discharged through the discharge water outlet 22. .

In addition, a flow rate control device (not shown) is provided at the front of the inlet port 21 of the septic tank 16 so that a constant flow rate is always introduced into the septic tank 16, and the amount of discharged water discharged at the rear of the discharge water outlet 22. Discharge amount detection device (not shown) for detecting the will be provided.

Such a flow control device and a discharge amount detection device is a very common technology in the field of detecting and controlling flows of flows in a very general manner. Since various kinds of devices and methods are known, the detailed description thereof will be omitted here. It is apparent that the present invention can be sufficiently implemented by selectively purchasing and installing a commercially available device.

At this time, the reason for allowing a constant flow rate to flow into the septic tank 16 is to maximize the purification efficiency of the water treatment material disposed in the form of a filter.

In addition, the septic tank 16 is preferably provided with a back washing apparatus capable of performing a back washing function, such a back washing function, when the discharge amount detected by the discharge amount sensing device drops significantly below the set flow rate, within the septic tank This is to determine that a factor that restricts the flow flow is generated so that the element restricting the flow flow can be removed by backwashing.

On the other hand, peat moss, a natural organic substance used as a water treatment material manufactured in the form of a filter 23 such as a cartridge type, a plate type, and a roll type as described above, has various types of peat moss of approximately 63 kinds. ) Is one kind.

In other words, commonly known peat (PEAT MOSS) refers to the accumulation of aquatic vegetation, moss, reeds, etc. of plants in the swamps over time, partly eroded and accumulated, depending on the generation and erosion, side leaves, peat, It is called peat and peat.

Such peat (PEAT MOSS) is a biochemical change (corrosion) of fungi in the presence of water due to thick deposits of moss, reeds, forage plants such as forage, or woody fluids such as pine and gardenia. It is a kind of coal that is not completely carbonized from 4 layers of neonatal zone. It is known as an object produced in cold and high cold and wet areas containing about 50% of carbon. It is known as a natural organic material that is applied in various industrial fields such as being used as a mixed material of organic fertilizers and adsorption filtration agents because it has a characteristic of binding property and is mainly used in the land of flower crops.

Particularly, peat moss has a wide range of distribution areas, and there are about 63 types of peat moss, and it is known that there are some differences in the components contained in peat and the composition ratios of each component. have.

As such, peat moss used as the water treatment material of the present invention among the peat moss having various distribution areas is a natural organic substance which is a kind of water moss, which is produced and supplied in the Alberta region of 48 ° north latitude. I use it.

That is, the sphagnum peat moss applied to the present invention, the moss native to the cold marshes, such as lakes, swamps, etc. thousands of years ago in the Elbert region of Canada Canada is repeatedly deposited on the surface It is a natural organic substance produced through biological and chemical changes.

In particular, the water peat moss (sphagnum peat moss) applied to the present invention has a unique fibrous porous cell structure, the fibrous porous cell structure has a strong adsorption capacity of 8.3 to 10 times the self-weight basis by capillary action, Encapsulates the adsorbed material so that it has the ability to be biodegraded naturally by naturally occurring microorganisms without non-leaching without relying on external pressures above 4 bar. Peat Moss Absorbent (also known as Peat Sorb ™) is a peat that has been researched and developed.

As described above, the septic tank 16 according to the present invention is manufactured by using the filter 23 to have various shapes by pulverizing the peat evenly and solidifying it with a solidifying agent so as to utilize the properties of the peat 100%. Thus, when used in conjunction with the filtration company, the construction of the septic tank 16 and the replacement of the water treatment material is very easy to have a merit that anyone can easily install and replace with a simple operation.

At this time, the peat is evenly crushed to each size of 18 to 100 mesh (MESH) and then solidified through a solidifying agent to be produced as a filter 23 divided into a plate type, roll type, and cartridge type.

Hereinafter, as a preferred embodiment of the method applied to the septic tank in a state in which the peat, which is a water treatment material according to the present invention is manufactured as a cartridge type filter, will be described in brief.

First, as shown in FIG. 7, the peat, which is a water treatment material, is crushed evenly in a size range of 18 to 100 mesh (MESH), and then solidified by mixing a solidifying agent to prepare a filter.

At this time, in the case of manufacturing with a cartridge-type filter, the core portion 26 having a hollow space shape of about 20 mm in diameter is placed on the center portion, and the median layer 25 made of peat having a diameter of 60 mm and a height of about 1000 mm on the outer circumferential surface thereof. By manufacturing to have a basic unit consisting of one cartridge type filter is completed.

The completed basic unit is a circular fixing frame 24 having a diameter of 200 mm is placed on the upper and lower and four basic units between the upper and lower circular fixing frame 24 at regular intervals in all directions to produce an intermediate unit.

The intermediate unit thus manufactured is composed of one unit unit having a predetermined standard, that is, one septic tank 16 as shown in FIGS. 8 and 9.

That is, the unit unit is arranged by arranging nine intermediate units at regular intervals, the nine intermediate units are arranged to constitute one unit unit, that is, one septic tank (16).

At this time, the standard of one said septic tank 16 is about 900 mm x 900 mm x 1200 mm in width x length x height.

Thus, when the septic tank 16 is installed in a waste water treatment plant or other sewage treatment plant in the form of a unit unit, that is, one septic tank 16, the number of unit units installed according to the raw water (waste water) treatment capacity required. It will be installed by changing.

Here, the basic specification of the cartridge-type filter described above is only one embodiment, of course, can be manufactured in various kinds and specifications.

That is, Table 1 and Table 2 show the basic types and specifications for producing peat, which is a water treatment material, with a cartridge type filter, and the capacity for removing organic substances.

Basic unit specification of cartridge type filter (based on length 1000mm)  Basic unit type Core size (mm) Outer diameter size (㎜) Filtration amount (peat quantity) (㎏) Permeated water per day (ton) Total Purification Capacity (㎏)  A type A1 15 90 2.5 0.625 15 A2 15 60 One 0.25 6 A3 15 40 0.43 0.1 2.4  B type B1 20 90 2.4 0.6 14.4 B2 20 60 One 0.25 6.4  C type C1 30 90 2.3 0.57 13.68 C2 30 60 0.85 0.21 5.04

That is, as shown in Table 1, the total purification capacity (total impurity removal amount) with respect to the amount of filter media (the amount of peat) included in the filter is 6 times or more than the self-weight of the filter media. This is possible because it has a strong adsorption capacity of 8.3 to 10 times its own weight.

It is obvious that the total purification capacity of the intermediate unit and the unit unit can be easily designed based on the basic unit specifications, and based on this, the number and treatment of the installation of the septic tank 16 according to the treatment capacity required in the wastewater treatment plant. The capacity can be arithmetically calculated, making the design very easy.

On the other hand, the water quality test report of the water quality of the effluent (treated water) treated by the septic tank 16 applied to the wastewater treatment method according to the present invention through the purification step (S3) is shown in Table 2 below.

Here, the water quality test report shown in Table 2 below, after collecting the sewage (raw water) in the Ulsan Hoeya sewage treatment plant, and then the Ulsan city in Ulsan to clean the water quality of the effluent purified through the septic tank 16 applied to the present invention This table shows the water quality test results obtained by requesting from the Seikwang Analysis Center within the College of Science.

At this time, the sampling date was May 26, 2006, the water temperature was about 22.3 ~ 22.5 ℃.

Metric Sewage (raw water) Effluent water by the present invention septic tank Emission allowance standards (other regions / specific regions) COD 156.7 mg / l 6.5 mg / l 40 / 40mg / l or less BOD 150 mg / l 2.4 mg / l 20 / 10mg / l or less SS 170 mg / l 12.8 mg / l 20 / 10mg / l or less T-N 28.99 mg / l 3.36 mg / l 60 / 20mg / l or less T-P` 1.9 mg / l 0.69 mg / l 8/2 mg / l or less

Analyzing the results of Table 1, it can be seen that the discharged water by the septic tank 16 according to the present invention satisfactorily meets the discharge allowance standard according to the sewage treatment in all measurement items.

The result shown in Table 2 is a water quality test performed only in the purification step (S3) in the septic tank 16, the chemical oxygen demand (COD), biological oxygen demand (BOD), the value of suspended solids (SS) It is shown that it can be significantly lowered below the emission limit.

In particular, in the removal portion of nutrients such as nitrogen (N), phosphorus (P), it can be confirmed that as much as 3.36 mg / L, 0.69 mg / L in the effluent according to the present invention, respectively, nitrogen (N) Showed 89% removal rate and phosphorus (P) showed 64% removal rate.

This indicates that the effluent water naturally purified using peat, which is a water treatment material in the septic tank 16 according to the present invention, for nutrients such as nitrogen (N) and phosphorus (P) is excellently purified.

And, in Table 3 below, the water quality was examined through the water pollution process test method by varying the sampling date to verify the purification ability of nitrogen (N), phosphorus (P) through the septic tank 16 of the present invention. As a test report, the sewage (raw water) is collected at the Ulsan Hoeya Sewage Treatment Plant, and then the sewage analysis center in Ulsan University of Science and Technology in Ulsan Metropolitan City is commissioned for the water quality of the effluent purified by the septic tank 16 applied to the present invention. It is a table of the obtained water quality test results.

 Sample collection date enemy Purification by the present invention septic tank Removal rate T-N T-P T-N T-P T-N (%) T-P (%) 2006.10.12 28.37 mg / l 3.04 mg / l 10.64 mg / l 1.63mg / ℓ 62.5 46.6 2006.10.18 27.19 mg / l 2.76 mg / l 9.79 mg / l 1.27mg / ℓ 64 54 2006.11.7 24.70mg / l 2.14 mg / l 8.04 mg / l 0.88 mg / l 67.5 58.9 2006.11.22 27.51 mg / l 2.70mg / l 10.89 mg / l 0.94 mg / l 60.5 65.2 2006.12.11 31.23mg / l 3.18 mg / l 11.13 mg / l 1.32mg / l 64.4 58.5

As shown in the results of Table 3, the removal rate of nutrients such as nitrogen (N) and phosphorus (P) through the septic tank of the present invention is that nitrogen (N) is removed from 60.5% to 67.7% at least. It can be seen that the phosphorus (P) is removed from the lowest 46.6% ~ up to 65.2%.

In addition, Table 4 below is a chlorine having a great influence on the cultivation of crops to determine whether the heavy metal removal and effluent can be used as agricultural water in addition to the purifying capacity of nitrogen (N), phosphorus (P) through the septic tank 16 of the present invention Water quality test report analyzing sodium, alkalinity, and electrical conductivity.

The water quality test report shown in Table 4 below collects sewage (raw water) at the Gangseo sewage treatment plant in Busan, and then checks the water quality of the discharged water purified through the septic tank 16 applied to the present invention in Ulsan University of Science and Technology in Ulsan. This table shows the water quality test results obtained by requesting from the Saekwang Analysis Center.

At this time, the sampling date was December 26, 2005.

  Analysis item  enemy  Purification by the present invention septic tank  Analysis  Analysis Total Nitrogen (T-N) 22.70 mg / l 5.25 mg / l Total phosphorus (T-P) 1.33 mg / l 0.54 mg / l Potassium (K) 31.80 mg / l 21.21 mg / l Calcium (Ca) 42.13 mg / l 10.68 mg / l Magnesium (Mg) 17.10 mg / l 3.67 mg / l Sulfur (S) 32.18 mg / l 22.57 mg / l Ionic chlorine (Cl ^-) 231.15 mg / l 19.50 mg / l Sodium (Na) 155.30 mg / l 21.33 mg / l Alkalinity (HCO ₃ ) 168.00 mg / l 38.00 mg / l All iron (T-Fe) 0.678 mg / l 0.015 mg / l Manganese (Mn) 0.230 mg / l 0.005 mg / l Boron (B) 0.093 mg / l 0.007 mg / l Zinc (Zn) 0.043 mg / l 0.011 mg / l Copper (Cu) 0.005 mg / l Trace mg / l Molybdenum (Mo) 0.006 mg / l 0.006 mg / l Electrical Conductivity (EC) 1.19 mS / cm 0.28 mS / cm pH 7.12 6.60

As shown in the water quality test results table, it can be confirmed that nitrogen (N), phosphorus (P) falls significantly below the allowable emission standard, as well as effective in removing heavy metals.

In particular, chlorine, sodium, alkalinity, and electrical conductivity, which have a great influence on crop cultivation when used as agricultural water, are purified through the septic tank of the present invention than before clarifying the septic tank of the present invention. It was found to be very good.

In addition, since the pH is also purified to be close to alkaline, it can be seen that it can provide agricultural water useful for crop cultivation.

In addition, although the total amount of iron (T-Fe) contained 0.678 mg / l, the total amount of iron (T-Fe) contained in water was only 0.015 mg / l. It was found to be improved.

Therefore, when examining based on the water quality test report shown in Table 2 to Table 4, in the present invention in the chemical oxygen demand (COD), biological oxygen demand (BOD), suspended matter (SS) related to the organic matter and suspended matter It can be seen that the wastewater treatment plant using the wastewater treatment method according to the present invention, which can achieve a result significantly lower than the discharge allowance reference value in each of the effluents of the septic tank applied, is sufficiently implemented.

Particularly, in the case of the present invention, as a result of the water quality test performed in the septic tank 16 only after the clarification step S3, the above-mentioned pretreatment step S1 and the water treatment step S2 and the like have been performed. It is expected that the levels of chemical oxygen demand (COD), biological oxygen demand (BOD) and suspended solids (SS) related to organic matter and suspended matter may be lowered.

In addition, in the total nitrogen (T-N), total phosphorus (T-P) and the like related to the nutrients, it was confirmed that the discharged water according to the present invention is greatly removed below the allowable discharge standard.

This means that when the wastewater treatment method and wastewater treatment plant according to the present invention are used, the risk of eutrophication and red tide may be greatly reduced by nutrients contained in the effluent in the effluent.

In addition, the effluent purified according to the present invention was able to confirm that it can be used as agricultural water, which means that not only agricultural water but also heavy water, industrial water can be used.

On the other hand, although the effluent water purified through the septic tank 16 in the purification step (S3) as described above may be discharged as it is, since the peat, which is a water treatment material used in the septic tank 16 of the present invention, is a natural organic substance that is water moss. In the early stages of purification, however, the color of peat itself was intact in the effluent and could appear to be not visually perfectly purified.

In order to solve this problem, it is preferable to go through the color adjustment step (S4) using the activated carbon 18 to adjust the color of the effluent discharged through the purification step (S3).

That is, in the color control step (S4) by removing the color contained in the effluent from the activated carbon tank 18 by using the activated carbon with excellent decolorization, it is preferable to give a visually perfectly purified treatment.

At this time, since the color adjustment step (S4) is intended to remove the rich color from the peat itself soaked in the effluent, it does not need to be performed when it is confirmed that the color does not visually appear in the effluent.

Substantially, the color of the peat produced by the filter 23 only at the initial stage of purification in the purification step (S3) and only need to adjust the color of the effluent, after a certain time since the color of peat no longer activated activated carbon It is not necessary to operate the tank 18.

In addition, when the color control operation is performed through the activated carbon in the activated carbon tank 18, the backwash water is generated, and the backwash water is preferably transported back to the water collecting and settling tank 12 to be purified.

As described above, in the wastewater treatment method according to the present invention, solids such as soil, sand, and earth and sludge are removed as much as possible during the pretreatment step (S1), and thus suspended solids (SS) and biological oxygen demand (BOD). And suspended solids and organic matters related to chemical oxygen demand (COD), and the raw water (waste water) is sterilized, deodorized, decolorized and fine sludge removed through the water treatment step (S2), thereby eliminating the pathogenic microorganisms and purification steps. Factors that will adversely affect the filter is removed as much as possible, and nutrients nitrogen (N), phosphorus (P), etc. in the septic tank 16 of the purification step (S3) is naturally biodegraded and effectively removed by peat as a water treatment material. .

Therefore, the present invention does not need to have a hate facility for culturing microorganisms such as aeration tanks of sewage treatment plants applied with the existing standard activated sludge method, and the size of the facilities is significantly reduced compared to conventional sewage treatment plants. Also has the advantage that can effectively treat the waste water.

In particular, according to the present invention, nutrition such as total nitrogen (TN), total phosphorus (TP) in the purification step (S3) of the septic tank 16 even without the third treatment or advanced treatment process performed in the conventional sewage treatment plant. It can be seen that the salt is removed very effectively.

In addition, it is well known that there are some limitations in removing nutrients such as total nitrogen (TN) and total phosphorus (TP) during sewage treatment by the standard activated sludge method. It is known that eutrophication and red tide may occur by the nutrients included in the present invention. When analyzing the results according to the treatment of the nutrients of Tables 2 to 4 according to the present invention, wastewater treatment according to the present invention In case of using the method and wastewater treatment plant, it was confirmed that the nutrients contained in the effluent in the effluent could greatly reduce the risk of eutrophication and red tide.

As described above, according to the wastewater treatment method according to the present invention, as a kind of water moss, peat which is a natural organic material is evenly crushed, solidified through a solidifying agent, filtered into various forms, and used as a water treatment material in a septic tank. Effective removal of organic matter, heavy metals and hardly decomposable substances that are the basic purposes of water purification, nutrients such as nitrogen and phosphorus, which are the main causes of eutrophication and red tide, as well as the construction of septic tanks and water treatment materials in septic tanks The replacement has the effect of improving the hassle.

In particular, the present invention to increase the self-cleaning effect of the waste water as well as to generate magnetized water through the magnetization water in the pretreatment step, sterilization, deodorization, decolorization treatment of raw water (waste water) through ozone water treatment tank, UV sterilization tank and activated carbon tank in the water treatment step In addition, by minimizing the biofilm phenomenon on the surface of the filter, which is a water treatment material, in the purification step by removing fine sludge from the micro filter tank, the problem of corruption caused by pathogenic microorganisms, which may be caused by peat itself, which is a water treatment material, is a natural organic matter. In addition, it is possible to greatly extend the water purification life of filtered peat, and to ensure a stable water purification ability.

 In addition, the present invention provides a wastewater treatment plant employing a new method of wastewater treatment by a septic tank using peat, which is a natural organic substance, as a water treatment material, and thus, to an activated sludge method mainly used in raw water treatment in a conventional sewage treatment plant. The aeration stage that removes organic matter can be eliminated by using the aeration tank, which can prevent the sludge generation problem caused by activated sludge as well as the tertiary treatment process and advanced treatment required in the conventional sewage treatment plant. It does not have the facilities for the organic matter as well as nutrients can be effectively removed.

In particular, the wastewater treatment plant according to the present invention is very economical in terms of facility and maintenance costs in the first half because the size of the septic tank itself can be changed at any time in a unit unit form.

In addition, the wastewater treatment plant according to the present invention has an advantage that it can be installed in a relatively very small scale compared to the facility size of the sewage treatment plant using the standard activated sludge method.

That is, the size of the facility itself is relatively small compared to the conventionally known sewage treatment facilities based on the same treatment capacity, which is desirable in terms of securing an installation site, and the small-scale maintenance organization and maintenance of the treatment facilities. It has the effect of easy maintenance by the easy acquisition of technology, and has an excellent economic efficiency by reducing the construction cost and maintenance cost.

In addition, since the wastewater treatment method and the wastewater treatment plant employing the method according to the present invention are used by filtering peat, which is a natural organic substance, as a water treatment material applied to the septic tank, the water treatment has high reliability and purification using natural pressure. It is an energy-saving type by the method, and it is a resident-friendly type by eliminating some abominable facilities such as aeration tanks, and it is very environmentally friendly.

Claims (12)

A pretreatment step (S1) for removing solids and sludge; The fine filter tank 14 to control the turbidity by adjusting the turbidity by removing the fine sludge by the ozone water treatment tank and the filter to perform the sterilization, deodorization, decolorization treatment of the waste water from which the sludge is removed through the pretreatment step (S1). Water treatment step (S2) to control the sterilization, deodorization, decolorization treatment and turbidity by using a water treatment tank 13 consisting of; The peat, which is a natural organic matter, evenly crushed to 18 to 100 mesh, was solidified, made into a filter material, and then made into a water treatment material, and then, the wastewater was passed through the water treatment step (S2) through a septic tank 16 arranged according to a set standard. Purification step (S3) to receive and purify; Wastewater treatment method characterized in that it comprises a color control step (S4) for controlling the color change of the effluent generated in the early stage of purification by using peat, which is a natural organic matter in the purification step (S3). A pretreatment step (S1) for removing solids and sludge; Wastewater from which sludge has been removed through the pre-treatment step (S1) is an ultraviolet sterilization tank for sterilizing wastewater by ultraviolet rays and activated carbon and a fine filter tank 14 for deodorizing and decolorizing wastewater by activated carbon. Water treatment step (S2) for controlling sterilization, deodorization, decolorization and turbidity by using a water treatment tank 13 made of a fine filter tank 14 to remove and adjust turbidity; The peat, which is a natural organic matter, evenly crushed to 18 to 100 mesh, was solidified, made into a filter material, and then made into a water treatment material, and then, the wastewater was passed through the water treatment step (S2) through a septic tank 16 arranged according to a set standard. Purification step (S3) to receive and purify; Wastewater treatment method characterized in that it comprises a color control step (S4) for controlling the color change of the effluent generated in the early stage of purification by using peat, which is a natural organic matter in the purification step (S3). The method according to claim 1 or 2, The pretreatment step (S1) is a solids removal step (S-1) to perform the role of filtering the solids contained in the waste water by the screen tank 11 with a screen, the solids are removed from the screen tank 11 Sewage and sedimentation step (S-2) for collecting the wastewater through the collection and settling tank 12 to settle the sludge in the wastewater, and sludge generated in the collection and sedimentation step (S-2) and water treatment step (S2), respectively. Waste water treatment method comprising a sludge removal step of collecting and removing (S-3). delete delete The method according to claim 1 or 2, The color control step (S4) is a wastewater treatment method, characterized in that for controlling the color change of the effluent through the activated carbon (18) using activated carbon. A screen tank 11, a collection and settling tank 12, and a sludge dewatering facility 17 capable of performing a pretreatment step S1 for removing solids and sludge; Ozone water treatment that can be sterilized, deodorized and decolorized by the ozone water in a batch to sterilize, deodorize, decolorize, and remove the fine sludge of the wastewater from which the solids and sludge have been removed. A water treatment tank 13 composed of a fine filter tank 14 capable of removing fine sludge by means of a tank and a filter; Water treatment prepared in the form of a filter 23 by solidifying peat, which is naturally crushed into 18 to 100 mesh so as to perform the purification step (S3) to receive and purify the wastewater passed through the water treatment step (S2). A septic tank 16 in which ash is disposed; Waste water treatment plant characterized in that it comprises an activated carbon tank (18) using the activated carbon for controlling the color change of the effluent generated in the early stage of purification in the purification tank (16). delete A screen tank 11, a collection and settling tank 12, and a sludge dewatering facility 17 capable of performing a pretreatment step S1 for removing solids and sludge; Sterilize, deodorize, decolorize and remove the sludge from the wastewater from which the solids and sludge have been removed so that the wastewater can be deodorized by an ultraviolet sterilizer and activated carbon which can sterilize the wastewater by ultraviolet rays to perform the water treatment step (S2). And a water treatment tank 13 composed of an activated carbon tank capable of decolorizing and a fine filter tank 14 capable of adjusting fine turbidity by removing fine sludge; Water treatment prepared in the form of a filter 23 by solidifying peat, which is naturally crushed into 18 to 100 mesh so as to perform the purification step (S3) to receive and purify the wastewater passed through the water treatment step (S2). A septic tank 16 in which ash is disposed; Waste water treatment plant characterized in that it comprises an activated carbon tank (18) using the activated carbon for controlling the color change of the effluent generated in the early stage of purification in the purification tank (16). delete The method according to claim 7 or 9, The septic tank 16 has a cylindrical or hexahedral exterior structure and an open top surface so that peat, which is a water treatment material, can be loaded or disposed in a predetermined area, and the waste water is supplied to one side of the septic tank. In addition to the inlet 21 is provided to the other side is provided with a discharge water discharge port 22 for discharging the purified discharge water, A flow rate adjusting device is provided in front of the inlet port 21 of the septic tank 16 so that a constant flow rate may be introduced into the septic tank 16 at all times, and a discharge amount for detecting the amount of discharged water discharged behind the discharge water outlet 22. A sensing device is provided, The septic tank (16) is a waste water treatment plant, characterized in that provided with a backwashing device capable of performing a backwash function. The method according to claim 7 or 9, The filter is a waste water treatment plant, characterized in that using any one of the plate type, roll type, cartridge type.

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