KR200281730Y1 - A wastewater disposal plant of high concentration and hard resolvability - Google Patents

Abstract

The present invention is purified through physical treatment by agitation and aeration and various chemical treatments with oxidizing agents, bases and flocculants, etc., while applying a direct and intensive blow force to the wastewater through a concentrated blow reactor. The separation and degassing is to facilitate the purification process.

The present invention is configured on the upper part of the primary and secondary reaction tank, the concentrated blow reaction tank is a tertiary strainer for solid-liquid separation of the waste water purified through the primary reaction tank; An inlet pipe through which the solid-liquid separated wastewater flows through the tertiary strainer; An air injection pipe for injecting air into the concentrated blow reaction tank; A high speed rotating impeller driven by the power of a motor formed on an upper surface thereof and connected to an inlet pipe through which the waste water is discharged by being connected by an impeller shaft passing through the inlet pipe; An air exhaust pipe that sends gas generated by the impact of the high speed rotary impeller to the atmosphere; A quaternary manure body for solid-liquid separation of the wastewater purified by the impact of the high speed rotary impeller; It relates to a high concentration refractory wastewater treatment apparatus consisting of a discharge pipe for discharging the purified water in which the solid-liquid separation and degassing reaction occurred in the lower portion of the concentrated blow reaction tank.

Description

A wastewater disposal plant of high concentration and hard resolvability}

The present invention relates to a high concentration hardly degradable wastewater treatment device, and more specifically, various high concentration hardly degradable wastewater (hereinafter referred to as 'wastewater') such as domestic sewage, livestock wastewater, and organic industrial wastewater, Purify by using hydrolysis reaction to various pollutants in colloidal state in waste water through strong kinetic energy such as high and low speed stirring and aeration and oxidizing agent, base agent, flocculant etc. Due to forced tissue reorganization, it is changed to a state where solid-liquid separation or deaeration is likely to occur, and the concentrated reaction tank is applied to the waste water to concentrate the degassing of various volatile contaminants. The present invention relates to a wastewater treatment device capable of quickly purifying.

The desire to realize the advanced civilization of mankind has passed through the ages, through many trials and errors, and to the present, and it has developed rapidly in each field compared to the past, so that it can overcome the constraints of time and space, and have a lot of living standards. Although it has been improved, it has achieved the same high civilization and contributed much to the development of mankind.However, as a result of indiscriminate development of nature for maximum benefit, neglecting harmony with the environment, the natural environment is now seriously polluted. It is becoming a threat to the survival of humanity.

Since such environmental pollution is not a problem to be solved by a specific region or country, it is urgent to cope with it globally. Lately, almost all regions and countries are working together to preserve the environment. In particular, water pollution causes enormous damage to the survival of animals and plants, threatening ecosystems and seriously threatening human health.

As a direct way to prevent water pollution as described above, it must be discharged after effective treatment of hazardous wastewater discharged from each industry, and discharged after treatment of sewage and sewage discharged from each general household. Wastewater and sewage treatment plants are discharged and contaminated rivers and groundwater due to selection, financial problems, operating costs, and lack of professional manpower. It is a growing trend, and in recent years, the content of human harmful substances such as environmental hormones seriously threaten the health of the people.

As a method of treating wastewater or sewage discharged from each industrial or general household, there is a conventional activated sludge process and a catalytic oxidation process. The activated sludge process includes residues such as soil, sand, and various residues mixed in the wastewater in the sedimentation basin. After the separation, air is blown into the wastewater from which the residues are separated in one reactor to grow microorganisms to agglomerate organic matters, to sink the organic matter masses, and to discharge water at a position above. The contact tank is filled with a contact material to form a filter bed, and sufficient dissolved oxygen is supplied by stirring the aeration tank so that the biofilm attached to the contact material and the waste water are repeatedly contacted and purified.

The above processes are the secondary treatment facilities that mainly remove organic matters. The activated sludge process requires professional and intensive management, economical operation at large facilities, unstable load fluctuations, and sludge. There is a problem in that the economic burden is high due to the large maintenance costs, such as a large amount, the contact oxidation process has a problem that the removal rate of phosphorus is lowered because the microorganism is difficult to move freely during aerobic and anaerobic period.

Looking at the utility model application No. 2001-35372, "purification treatment device of waste water" devised by the applicant of the present application to solve the problems caused by the process, installs a plurality of stirring impeller rotating by power inside the stirring reservoir In addition, the stirrer to install a plurality of blowers in the upper portion of the stirring reservoir to put the oxidant into the waste water while stirring the waste water at 80rpm ~ 100rpm; A primary solid-liquid separator that separates the solid and the waste liquid primarily from the mixed solution of the stirrer which is mixed with the solid and the liquid; An oxidant, while stirring a waste liquid flowing from the primary solid-liquid separator at 80 rpm to 100 rpm by installing a plurality of reaction impellers for power rotation inside the reaction reservoir, and installing a plurality of blowers at the top of the reaction reservoir. A reactor for putting the base and flocculant into the waste liquid and purifying it; A high speed rotary reactor installed on one side of the reaction reservoir of the reactor and re-inserting the waste liquid supplied from the reaction reservoir into the reaction reservoir while rotating stirring at 2500 rpm to 3500 rpm; An air injector installed at an inner lower portion of the reaction reservoir of the reactor to inject and supply air to the waste liquid; And a secondary solid-liquid separator for separating the solid and the liquid in the purified waste liquid flowing from the reaction reservoir of the reactor secondary.

The patented design makes it possible to purify the wastewater at low cost because it is physically and chemically purified by injecting a base agent, an oxidant, and a flocculant into the wastewater step by step while agitating the wastewater and bubbling. The waste water is purified through the centrifugal force and the centrifugal force of the reactor using high-speed agitation.However, in order to improve the water purification efficiency in consideration of the proper area of rotational energy, it is necessary to collect the total amount of waste water and rotate at high speed. There is a large cost burden due to the installation of the device, there is a fear of overloading the device due to the high-speed rotation, there is a problem that the time to purify the waste water is delayed.

The present invention has been devised to solve the above-mentioned conventional problems, by using strong kinetic energy such as agitation and aeration of high and low speed in high concentration hardly degradable wastewater and physical and chemical forces through the addition of oxidizing agents, bases and flocculants. To facilitate solid-liquid separation and degassing, various volatile contaminants such as ammonia nitrogen present in the waste water by applying direct and concentrated impact force, which is not a centrifugal force or centripetal separation force, but centrifugal force and centripetal separation force, to the wastewater from the concentrated reactor. It aims to shorten the chemical reaction time by making solid-liquid separation and degassing of the material easy.

In order to achieve the above object, it is configured on the upper part of the first and second reaction tank to constitute a concentrated blow reaction tank receiving and purifying the wastewater in the first and second reaction tank, the concentrated blow reaction tank through the first and second reaction tank A tertiary strainer for solid-liquid separation of the purified wastewater; An inlet pipe through which the solid-liquid separated wastewater flows through the tertiary strainer; An air injection pipe for injecting air into the concentrated blow reaction tank; A high speed rotating impeller driven by the power of a motor formed on an upper surface thereof and connected to an inlet pipe through which the waste water is discharged by being connected by an impeller shaft passing through the inlet pipe; An air exhaust pipe that sends gas generated by the impact of the high speed rotary impeller to the atmosphere; A quaternary manure body for solid-liquid separation of the wastewater purified by the impact of the high speed rotary impeller; It is intended to implement a high concentration refractory wastewater treatment apparatus consisting of a discharge pipe for discharging the purified water in which the solid-liquid separation and degassing reaction occurred in the lower portion of the concentrated blow reaction tank.

1 is an overall configuration diagram of a wastewater treatment apparatus applied to the present invention

Figure 2 is a schematic diagram of a reaction tank applied to the present invention

Figure 3 is a plan view of the primary and secondary reactors applied to the present invention

Figure 4 is a schematic cross-sectional view taken along line A-A of the primary and secondary reactors applied to the present invention

5 is a schematic cross-sectional view of a concentrated reactor applied to the present invention

Figure 6 is a flow chart showing a process of purification of livestock wastewater applied to the present invention

Figure 7 is a flow chart showing a process of purification of industrial wastewater applied to the present invention

* Description of Signs of Main Parts of Drawings *

1. Primary strainer 2. Secondary strainer

3. tertiary strainer 4. tertiary strainer

10. Raw water collecting tank 20. First and second reactor

21. Raw water inlet pipe 22. Impeller

22a. Motor 23. blower

24. Air inlet pipe 25. Injection nozzle

26. Oxidant input means 27. Base agent input means

28. Coagulant input means 29. Raw water discharge pipe

30. Concentrated blow reactor 31. Spiral inlet pipe

32. Air inlet pipe 33. Air exhaust pipe

34. Motor 35. High speed rotating impeller

36. Impeller Shaft 37. Purified Water Discharge Line

38. Blower

Hereinafter, with reference to the drawings will be described in detail with respect to the high concentration difficult-degradable wastewater treatment apparatus applied to the present invention.

1 is an overall configuration diagram of a wastewater treatment apparatus applied to the present invention, Figure 2 is a schematic diagram of a reaction vessel applied to the present invention, Figure 3 is a plan view of the primary and secondary reactors applied to the present invention, Figure 4 AA is a schematic cross-sectional view of the primary and secondary reaction tank applied to the present invention, Figure 5 is a schematic cross-sectional view of the concentrated reaction tank applied to the present invention, Figure 6 shows a process of the purification of livestock wastewater applied to the present invention 7 is a flowchart illustrating a process of purifying industrial wastewater applied to the present invention.

As shown, the present invention is a raw water collecting tank 10 for collecting wastewater, a 1, 2, 3, 4th filtering body (1, 2, 3, 4) for solid-liquid separation through coagulation, aeration and agitation The primary and secondary reactors 20, which enable the hydrolysis reaction and the solid-liquid separation to degassing through the physical treatment of energy and chemical treatment with oxidizing agents, bases and flocculants, and the wastewater flowing through the spiral inlet pipe to rotate at high speed It consists of a concentrated blow reaction tank 30 to directly and intensively hit the impeller 35 for high speed rotation to promote the degassing of various volatile contaminants.

The raw water collection tank 10 is to collect the waste water in one place for the purification treatment of the waste water, the chemical adsorption, decomposition, degassing, coagulation precipitation by water and oxidant and water and base agent is important in the physicochemical treatment process In particular, when the oxidizing agent is administered in the form of particles in the intermediate state between water and foam because the structure of the water particles is not stabilized, the waste water is changed to foam and chemical effects are reduced, so the stability of the water molecule properties of the waste water. To this end, an impeller 22 or a blower 23 is installed in the raw water collection tank 10 to inject or contact air to ensure stability of water molecule properties in contact with wastewater and oxygen. do.

The 1, 2, 3, and 4th filtering bodies (1, 2, 3, 4) filter out various suspended solids and impurities having large particles present in the wastewater, and solidify by flocculation through physical and chemical treatments. As a device to filter sludge, the wastewater PPM should be lowered to 10,000 or less when the primary reactor collects 30,000 to 100,000 PPM of BOD (Chemical Oxygen Demand) and COD (Chemical Oxygen Demand). The screen to be used is preferably 0.5 to 0.75 mm apart, and in the case of requiring more solid separation of liquid than the screen, it is preferable to use a filter press.

The primary and secondary reaction tanks (20) inject the oxidizing agent, base agent and flocculant into the wastewater flowing from the raw water collection tank (10), and by stirring and aeration through the stirring impeller (22) and the air inlet tube (24). By applying physical force, it causes hydrolysis reaction through chemical adsorption to various contaminants such as hardly decomposable contaminants and volatile contaminants to cause forced tissue reorganization of the contaminant in colloidal state, so that solid-liquid separation and degassing are easy. It is a device that makes it possible.

As shown in FIG. 3 and 4, the primary and secondary reaction tanks 20 may perform the above functions, and form a raw water inflow pipe 21 through which the waste water transferred from the raw water collection tank is introduced, and the reaction tank 20. A plurality of stirring impellers 22 which rotate at a low speed by the power of the motor 22a are installed therein, and a blower 23 is installed at the upper portion of the reactor 20 to allow external air to flow through the air inlet pipe 24. In order to supply to the wastewater in the reaction tank 20, the injection nozzle 25 is formed on the bottom of the reaction tank 20, and when oxidizing agent, base agent and flocculant are introduced into the waste water by stirring and aeration, The oxidizing agent, the base agent and the flocculant may be introduced into each of the purification treatment stages by forming predetermined storage tanks 26, 27, and 28 in the primary and secondary reaction tanks. Waste water purified through 20 through the raw water discharge pipe (29) Of to to be transferred to the blow tank, the reaction tank 20 is discussed further in the present design to the known art will be omitted.

The concentrated blow reactor 30 is a high-speed rotating impeller after a base agent is added to remove volatile contaminants such as ammonia nitrogen and nitrate nitrogen, which are not easily removed through the primary and secondary reactors 20. The gas in the form of gas generated by solid-liquid separation and degassing is exhausted to the atmosphere by direct and concentrated blow to (35), and the purified water can be discharged through the raw water discharge pipe (29).

Looking at the configuration of the concentrated blow reaction tank 30, as shown in Figure 5, installed in the upper portion of the primary reaction tank 20, the air injection pipe 32 for injecting air into the concentrated blow reaction tank (30) And forming an air exhaust pipe 33 for discharging gas in the form of gas generated by being hit by the high-speed rotational impeller 35 rotating at high speed, and primarily through the primary and secondary reactor 20 to the outside. The spiral inlet pipe 31 is formed to introduce the wastewater in which the solid-liquid separation and degassing occur, and the spiral inlet pipe 31 is formed in a spiral shape so that the incoming wastewater rotates in a left or right spiral shape. Molecular collisions occur during the process, which facilitates the hydrolysis reaction.

The motor 34 is formed on the upper surface of the concentrated strike reaction tank to connect the high speed rotary impeller 35 rotating by the power of the motor 34 to the impeller shaft 36, but the impeller shaft 36 is The high speed rotation impeller 35 is formed to be close to the inlet through which the waste water is discharged through the spiral inlet pipe 31. Directly and intensively hit the impeller 35, and the lower portion forms a purified water discharge pipe 37 through which the solid-liquid separation and degassing reaction can be discharged.

As described above, the operation of the high concentration hardly degradable wastewater treatment apparatus implemented by one embodiment of the present invention will be described in detail.

Example 1 (Livestock Wastewater)

After collecting the wastewater containing various contaminants to be purified as shown in FIG. 6 in the raw water collection tank 10 (100), the suspended solids and impurities contained in the wastewater through the primary strainer (1) After filtering (110), it is sent to the first reaction tank 20, the primary filter (1) screen is preferably 0.5 ~ 0.75MM interval, the filtered suspended solids and impurities at this time Use it to make it.

Wastewater transferred to the first reaction tank 20 is neutralized by oxidizing agent through the oxidant input means 26, and then oxidized and aggregated various fats and proteins in the wastewater, particularly in the case of livestock wastewater pH8-9 Since it is about alkaline, about 1 to 2% by weight of an oxidizing agent is added to neutralize the wastewater to pH 6-7, and in order to facilitate the chemical reaction, low speed stirring (80-100 rpm) and aeration for about 1 to 2 hours. (115), the oxidant causes hydrolysis by chemical adsorption while destroying fats and proteins contained in the contaminants, and forms a small floc by flocculation and converts into solid-liquid separation. Let's do it.

It is preferable to use ferric sulfate [Fe ₂ (SO ₃ ) ₄ ] as the oxidizing agent, which is through the secondary filter (screen) 2 through the oxidation of SO ₃ as well as the aggregation of Fe ₂ . In addition to facilitating solid-liquid separation, the solid separated at this time becomes a solid fertilizer, which has the advantage of being able to produce fertilizers with rich nutrients such as fat, protein, and minerals. In addition, since the separated liquid is also neutralized state, it is possible to prepare an excellent four kinds of complex fertilizer by diluting the additives such as microbial material or nitric acid, phosphoric acid, galley (120).

As described above, the primary reaction tank 20 can be viewed as a preliminary step of wastewater treatment for producing a solid and liquid neutralized fertilizer by extracting fertilizers with rich nutrients contained in the livestock wastewater. Process in (20) will be seen as a process for full-scale wastewater treatment.

In the case of the waste water conveyed from the primary reactor 20 and collected in the secondary reactor 20, the oxidant is introduced again through the oxidant input unit 26, which is only treated by the primary reactor 20. Since the decomposition reaction is not sufficient, it maintains pH3, which is the optimal concentration for hydrolysis to decompose fat and protein contained in contaminants, so that strong oxidation can be caused. There is a slight difference depending on the concentration of 1 ~ 2% by weight of the total amount is added.

The oxidizing agent may be selected from ferric sulfate, ferric chloride, cl metal salt, SO ₄ metal salt and the like, the metal salt is phosphoric acid, sodium bicarbonate, magnesium, calcium, potassium, sodium, As it causes double salt reaction by exchanging electrons with inorganic salts such as zinc, and deposits by chemical adsorption with various organic substances, it plays a role of transporting liquid or colloidal contaminants to solids, especially so4 and cl groups. It acts as a dissociation or modification of the linkage (cH-cooH) of hydrocarbons that make up fats and carbohydrates in wastewater. It raises COD by reacting with various metal salts while phosphate is removed by metal salt and phosphate covalent decomposition. Turn is to be naturally degraded.

It is possible to maximize the activation of the reaction of the oxidant by applying a physical force while simultaneously applying the chemical treatment of the waste water by the oxidant, a plurality of impeller by the power of the motor (22a) installed on the upper surface of the secondary reactor (20) (22) is operated to achieve low-speed stirring (80 ~ 100rpm), the outside of the air flows through the air inlet 24 through the operation of the blower 23 to the injection nozzle (25) formed on the bottom of the reactor Oxygen can be supplied through a low-speed stirring and aeration for 5-6 hours to cause the reaction of the oxidant (125).

When the reaction of the oxidant is completed by the slow stirring and aeration as described above, the base agent is introduced through the base agent input unit 27 (130), and is present in the colloidal state in the wastewater by adding agitation and aeration. Force contaminants to reorganize and neutralize to pH 6-7 while converting them into easier liquid-liquid separation.In this case, the amount of base used is 1 to 1.5% by weight of the total amount. Keep it for 3 to 4 hours.

Caustic soda, that is, sodium hydroxide is used as the base agent, and adsorption, decomposition, and degassing of nitrogen from various organic substances such as ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, and other contaminants caused by OH group activation. Increasing the contamination concentration can be sharply lowered, and the solid-liquid separation is facilitated through the coagulation of sodium (Na).

In the secondary reaction tank 20, when agglomeration is formed by hydrolysis and chemical adsorption, the polymer coagulant is administered through the coagulant injecting means 28 to increase the grain size thereof so that solid-liquid separation by the tertiary strainer 3 is achieved. To facilitate (135), the amount of flocculant added at this time is about 1 to 2% by weight of the total amount, and the solid filtered by the tertiary strainer (3) can also be used in the fertilizer process (140 ), It is preferable to use a filter press for the tertiary strainer 3 to ensure solid-liquid separation.

The waste water purified in the secondary reactor 20 is transferred to the concentrated blow reactor 30, which is the third reactor, through the tertiary strainer 3 (145), and through the primary and secondary reactor 20. The effect of lowering the concentration on pollutants such as BOD, COD and total phosphorus (hereinafter referred to as 'T / P') can be seen, but total nitrogen such as ammonia nitrogen and nitrate (hereinafter referred to as 'T / N') Since the effect of lowering the concentration is insignificant, the concentrated strike reaction tank 30 is added with a base agent to increase the effect of reducing the concentration of the T / N in the strong alkaline state of pH 12 (150).

The amount of the base agent introduced into the concentrated blow reaction tank 30 is about 1.5 to 2% by weight of the total amount, and it is preferable to use sodium hydroxide or sodium hypochlorite as the base agent, which is caused by nitrogenous contamination due to the activation of the hydroxyl group. Lowering the concentration of the substance, excellent sterilization and cleaning action of the chlorine component (CL) is achieved, and coagulation precipitation is facilitated through smooth ion exchange of the metal salt.

When the hydrolysis reaction and the neutralization reaction are caused by the addition of a base agent to the wastewater conveyed to the concentrated blow reaction tank 30, the wastewater is introduced into the spiral inlet pipe 31 to be discharged into the reaction tank 30. The wastewater generates a collision of molecules in the process of being transported while rotating in a left helix by a left helix inside of the spiral inlet pipe 31 to promote plastic decomposition reaction (155), and the spiral inlet pipe 31 is When the waste water is discharged through the high speed right-turning impeller 35 installed at the inlet to be discharged directly and intensively, loosening and dissociation of particles may occur, thereby facilitating solid-liquid separation and degassing. The gas in the form of gas 160 may be exhausted to the atmosphere through the air exhaust pipe 33 by the blower 38.

The concentrated blow reaction tank 30 may be formed by repeating the process of forming one or a plurality, and when the physical treatment and the chemical treatment applied to the waste water by the reaction tank 30 are performed, the waste water is lowered to purify water. Through the discharge pipe 37 it is recollected into the reaction vessel in which the low-speed stirring and aeration reactions occur so as to be subjected to the purification process to hit the impeller 35 for high-speed rotation through the repeating process as described above.

When the wastewater treatment process using the strong kinetic energy of the concentrated blow reaction tank 35 is carried out, the strongly alkaline wastewater of pH 12 is gradually dropped to the state of pH 8-9, and the time required is about 6-8 hours. As contaminants such as degassing are purged, the concentration of pH is lowered. At this time, an oxidant is added to maintain a neutral state of pH 6-7, while at the same time purifying the remaining contaminants through oxidation. The time required is about 2 to 4 hours, and finally, by administering about 1 to 2% by weight of the polymer flocculant to facilitate solid-liquid separation through the quaternary strainer 4 (165). It is preferable to use a filter press for the primary filter 4 to facilitate fine solid-liquid separation (170).

When the livestock wastewater is purified according to the present invention as described above, the solid filtered by the 1, 2, 3, and 4th fertilizer (1, 2, 3, 4) is used for the manufacture of fertilizers. The amount is usually 10% of the total amount, and the production of organic fertilizers, such as four types of compound fertilizers using additives can be controlled according to the additives, liquids also by diluting the additives according to the microorganisms or four compound fertilizers High-quality liquid fertilizers can be produced only for the total amount processed.

Looking at the result of the livestock wastewater treated by the wastewater treatment apparatus according to the present invention is shown in Table 1.

(Unit: mg / l) Item Classification COD BOD T / N T / P Remarks Chemical Physical force Reaction time enemy 16,280 29,290 7,678 1,945 Primary manure 11,480 24,534 6,825 237 One After the first reaction 515 2,309 457 Not detected Oxidizer 1% Low Speed Stirring Aerator 2 After the second reaction 310 1,035 35 Not detected Oxidizer 2% Base 1% Coagulant 2% Low Speed Stirring Aerator 10 After the third reaction 15 70 26 Not detected Oxidizer 0.5% Base 1% Coagulant 2% Intensive Strike Low Speed Stirring Aeration 8

Table 1 is a result of the water quality of the case of purifying 30 tons of livestock wastewater containing pig meal by the wastewater treatment apparatus and method according to the present invention, COD after the third reaction by the concentrated blow reactor 30, It can be seen that the pollutant concentrations such as BOD, T / N, T / P, etc. are significantly reduced.

Example 2 (Industrial Wastewater)

As shown in FIG. 7, the high concentration hardly decomposable industrial wastewater is similar to the livestock wastewater treatment process of Example 1, but most of the industrial wastewater landfill leachate is weakly acidic, and since the organic industrial wastewater is strongly acidic, the concentration of pH In other words, the order of administration of chemicals may be the reverse of that of livestock wastewater.

When the industrial wastewater having a strong acidity of pH 2 or less is purified, the wastewater collected in the raw water collection tank 10 may be 200 to remove suspended solids and impurities by a primary filter medium (1). When transported to the secondary reaction tank 20, by maintaining the neutral state of pH 6-7 by administering a basic agent through the base input means 27 to neutralize (215), the ammonia nitrogen and nitrate in the waste water In order to cause the dissociation and relaxation of the molecular structure of nitrogen, and to promote such hydrolysis reaction, the reactor by the slow stirring and blower 23 of the impeller 22 operated by the power of the motor 22a 20) to apply a physical force, such as aeration to inject air into the inside (220), and to maintain a reaction time of about 8 to 10 hours.

After the above process, the polymer coagulant is administered to facilitate solid-liquid separation and coagulation precipitation (225), and the solid filtered through the secondary filter sieve may be used as a material of the raw material (230), and the secondary manure The filtered liquid through the sieve is transferred to the concentrated strike reaction tank 30, which is a secondary reaction tank (235).

Wastewater in the concentrated blow reaction tank 30 is added with a base agent to alkalinize (240), at this time to maintain a pH of about 12 to create a state that is easy to induce degassing of volatile contaminants by active activity of the hydroxyl group After being transferred to the left spiral through the left spiral inlet pipe 31 (245), the concentration of the pH is gradually lowered while maximizing the degassing by being hit directly and intensively by the high-speed rotating impeller 35 that rotates at the right high speed. It falls to pH 8 within 8 hours, at which time 0.1 to 0.5% by weight of oxidizing agent is neutralized to pH 6 to 7 while oxidizing residual contaminants to be purified (250), and finally polymer coagulant is administered. (255) to allow the solid-liquid separation through the tertiary strainer to significantly reduce the concentration of various pollutants (260), and then the purified water discharge pipe (37) To be discharged to the outside.

As described above, physical and chemical treatments such as livestock wastewater and industrial wastewater at high concentrations are carried out at the same time to purify, but the loosening and dissociation of the bonds between particles using the direct and concentrated physical force of the concentrated blow reactor 30 is achieved. It promotes the phenomenon to facilitate solid-liquid separation and degassing so that it can purify highly concentrated hardly degradable wastewater.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those of ordinary skill in the art to which the present invention belongs, the above-described embodiments and attached It is not limited to the drawing.

The present invention provides solid-liquid separation and degassing of contaminants in wastewater by providing physical powers such as stirring and aeration and chemical powers such as oxidizing agents, bases and flocculants during the purification treatment of high concentration hardly degradable wastewater such as livestock wastewater and industrial wastewater. It is easy to use, but by supplying the waste water to the concentrated blow reaction tank directly and intensively by the high-speed rotating impeller to promote the dissociation and relaxation of the bonding between particles to minimize the chemical force and maximize the purification efficiency, Due to this, the reaction time can be shortened, and the solid filtered out of each of the filter media due to the purification process can be recycled into high quality fertilizer.

Claims (2)

Raw water collection tank for collecting waste water; Primary and secondary strains for solid-liquid separation through flocculation; In the waste water treatment apparatus comprising: a primary and secondary reaction tank for generating a hydrolysis reaction and a degassing action through physical treatment, which is kinetic energy by aeration and agitation, and chemical treatment by an oxidizing agent, a base agent, and a flocculant. Comprising an upper portion of the first and second reaction tank to configure a concentrated blow reaction tank for receiving and purifying the waste water in the first and second reaction tank, the concentrated blow reaction tank is a solid-liquid separation of the waste water purified through the first and second reaction tank Tertiary strain; An inlet pipe through which the solid-liquid separated wastewater flows through the tertiary strainer; An air injection pipe for injecting air into the concentrated blow reaction tank; A high speed rotating impeller driven by the power of a motor formed on an upper surface thereof and connected to an inlet pipe through which the waste water is discharged by being connected by an impeller shaft passing through the inlet pipe; An air exhaust pipe that sends gas generated by the impact of the high speed rotary impeller to the atmosphere; A quaternary manure body for solid-liquid separation of the wastewater purified by the impact of the high speed rotary impeller; And a discharge pipe for discharging the purified water in which the solid-liquid separation and the degassing reaction have occurred in the lower portion of the concentrated blow reaction tank. The method of claim 1, The inlet pipe is formed in a spiral to form a high concentration non-degradable wastewater treatment device characterized in that the inflow of the waste water is rotated in a spiral.